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WO2018109940A1 - Display device - Google Patents

Display device Download PDF

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Publication number
WO2018109940A1
WO2018109940A1 PCT/JP2016/087629 JP2016087629W WO2018109940A1 WO 2018109940 A1 WO2018109940 A1 WO 2018109940A1 JP 2016087629 W JP2016087629 W JP 2016087629W WO 2018109940 A1 WO2018109940 A1 WO 2018109940A1
Authority
WO
WIPO (PCT)
Prior art keywords
display device
display panel
liquid crystal
crystal display
hole
Prior art date
Application number
PCT/JP2016/087629
Other languages
French (fr)
Japanese (ja)
Inventor
智広 淺水
Original Assignee
堺ディスプレイプロダクト株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 堺ディスプレイプロダクト株式会社 filed Critical 堺ディスプレイプロダクト株式会社
Priority to PCT/JP2016/087629 priority Critical patent/WO2018109940A1/en
Publication of WO2018109940A1 publication Critical patent/WO2018109940A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to a display device including a display panel having a display surface on which an image is displayed and a polarizing sheet covering the display surface.
  • Patent Document 1 in a liquid crystal display device including a liquid crystal panel, an optical sheet, a backlight, and a backlight container sequentially stacked from the front side to the rear side, the liquid crystal panel, the optical sheet, the backlight, and the backlight container
  • a liquid crystal display device that can be made thin and have a narrow frame by including a rectangular frame that sandwiches the frame.
  • the size is increasing along with the narrowing and thinning of frames.
  • the bezel occupies a lower proportion and it becomes difficult to fix the display panel.
  • the display device is easily deformed and the load is increasing due to the increase in the size of the display device. Therefore, when handling such a large narrow frame display device, for example, when the display panel is bent in a face-down state, the display panel falls off the bezel.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a display device that includes a display panel on which an image is displayed and a polarizing sheet that covers the display panel. Another object of the present invention is to provide a display device that can prevent the display panel from falling off the bezel.
  • the display device includes a display panel having a display surface on which an image is displayed and a polarizing sheet covering the display surface.
  • the polarizing sheet is attached to the display surface. 1 part and a 2nd part extended in the direction which cross
  • the display panel when the display device is handled, the display panel can be prevented from falling off the bezel due to its own weight or due to the display panel being bent.
  • FIG. 1 is a front view illustrating an appearance of a display device according to Embodiment 1.
  • FIG. 3 is an exploded perspective view illustrating a main configuration of the display device according to the first embodiment.
  • FIG. 2 is a cross-sectional view taken along line AB in FIG. 1.
  • 4 is a schematic diagram illustrating a polarizing sheet of the display device according to Embodiment 1.
  • FIG. 6 is a schematic diagram showing a modification of the polarizing sheet of the display device according to Embodiment 1.
  • FIG. 6 is a partial cross-sectional view of a display device according to Embodiment 2.
  • FIG. 6 is a partial cross-sectional view of a display device according to Embodiment 3.
  • FIG. 10 is a cross-sectional view illustrating a configuration of a main part of a display device according to Embodiment 4.
  • FIG. 1 is a front view showing the appearance of the display device according to the first embodiment.
  • Reference numeral 100 in the figure indicates a display device according to the present embodiment.
  • the horizontal direction of the display device 100 is referred to as a horizontal direction D1
  • the vertical direction is referred to as a vertical direction D2.
  • the front side (front side of the liquid crystal display panel 2 described later) and the back side of the display device 100 are referred to as a thickness direction D3 (see FIG. 2).
  • FIG. 2 is an exploded perspective view showing a main configuration of the display device 100 according to the first embodiment
  • FIG. 3 is a cross-sectional view taken along line AB in FIG.
  • FIG. 3 conceptually shows a main configuration of the display device 100 according to the present embodiment.
  • the display device 100 includes a rectangular liquid crystal display panel 2 that displays an image on the front display surface 21 as illustrated. Further, on the back side of the liquid crystal display panel 2, an optical sheet 3, a diffusion plate 5, a reflection sheet 8, and a light source 6 are provided in this order.
  • the display device 100 includes a backlight chassis 9 (housing), and the backlight chassis 9 has a rectangular parallelepiped box shape with the liquid crystal display panel 2 side opened.
  • the reflection sheet 8 and the light source 6 are accommodated in the backlight chassis 9.
  • the peripheral edge of the liquid crystal display panel 2, the optical sheet 3, the side surface of the diffusion plate 5, and the side wall of the backlight chassis 9 are surrounded by a bezel 7 having a rectangular frame shape.
  • the back surface 22 opposite to the display surface 21 of the liquid crystal display panel 2 faces the front (front) surface 31 of the optical sheet 3, and the optical sheet 3 on the side opposite to the front surface 31.
  • the rear surface 32 faces the front surface 51 of the diffusion plate 5, and the rear surface 52 of the diffusion plate 5 opposite to the front surface 51 is arranged to face the reflection sheet 8.
  • the bezel 7 has a hollow rectangular cylindrical portion 73 that surrounds the side surfaces of the liquid crystal display panel 2 and the diffusion plate 5 and a side wall 93 of the backlight chassis 9 described later.
  • the inner side surface of the cylindrical portion 73 is the liquid crystal display panel. 2 and the side surface of the diffusion plate 5 and the side wall 93 of the backlight chassis 9.
  • the bezel 7 has a frame portion 72 extending so as to cover the peripheral edge portion of the display surface 21 of the liquid crystal display panel 2 from the front side edge of both ends of the cylindrical portion 73 in the thickness direction D3.
  • the frame portion 72 has a rectangular annular shape. That is, a rectangular display window 71 is opened inside the frame portion 72, and has a predetermined width from the outer peripheral edge to the inner peripheral edge of the frame portion 72.
  • the non-display area at the periphery of the display surface 21 is covered with the frame portion 72 of the bezel 7. The user can visually recognize an image displayed on the display surface 21 of the liquid crystal display panel 2 through the display window 71.
  • the optical sheet 3 provided on the back surface 22 side of the liquid crystal display panel 2 diffuses and condenses light emitted from the light source 6 and enters through the diffusion plate 5 to provide more uniform light to the liquid crystal display panel. It is a well-known one that emits light toward 2.
  • the optical sheet 3 has three unit sheets stacked. More specifically, the optical sheet 3 has two diffusion sheets and one prism sheet, and the prism sheet is disposed between the two diffusion sheets. The prism sheet and the diffusion sheet are the same rectangle and have substantially the same shape and area.
  • the rectangular diffusion plate 5 is provided on the back surface 32 side of the optical sheet 3, and the front surface 51 of the diffusion plate 5 and the back surface 32 of the optical sheet 3 are arranged to face each other.
  • the diffusion plate 5 is emitted from the light source 6, diffuses the light incident from the back surface 52, and emits the light toward the optical sheet 3 through the front surface 51.
  • the eaves diffusion plate 5 is made of, for example, a milky white resin obtained by adding a diffusing agent to a transparent resin such as an acrylic resin or a polycarbonate resin.
  • a point light source such as an LED
  • the diffusion plate 5 diffuses the light from each point light source and emits it uniformly from the surface 51 toward the optical sheet 3.
  • the diffusion plate 5 corresponds to the optical plate described in the claims.
  • the present invention is not limited to this, and the optical plate may be a light guide plate.
  • a backlight chassis 9 is provided behind the diffusion plate 5, and a plurality of light sources 6 are mounted on the bottom surface 94 of the backlight chassis 9.
  • the bottom surface 94 of the backlight chassis 9 is rectangular, and a side wall 93 projects from the end of the bottom surface 94 toward the diffusion plate 5 in the thickness direction D3.
  • the outer side surface of the side wall 93 of the backlight chassis 9 faces the inner side surface of the cylindrical portion 73 of the bezel 7.
  • a reflective sheet 8 is disposed on the bottom surface 94 of the backlight chassis 9, and the light source 6 projects from the front side of the reflective sheet 8 at a plurality of openings (not shown) provided in the reflective sheet 8. .
  • the backlight chassis 9 has a vertical plate portion 91 projecting substantially perpendicular to the bottom surface 94 in the vicinity of the inner surface of the side wall 93, and from the end of the vertical plate portion 91 toward the end of the side wall 93. And an inclined plate portion 92 provided obliquely with respect to the bottom surface 94. That is, the inclined plate portion 92 is diagonally opposed to the back surface 52 of the diffusion plate 5 and has a tapered shape that is reduced in width toward the bottom surface 94.
  • the vertical plate portion 91 and the inclined plate portion 92 may have a reflection film that reflects light emitted from the light source 6 toward the diffusion plate 5 on the inner surface.
  • a flat surface 95 is formed on the front side (display surface side) end of the inclined plate portion 92 or the front side (display surface side) end of the side wall 93, and the periphery of the back surface 52 of the diffusion plate 5 is formed on the flat surface 95. The parts are in contact. That is, the diffusion plate 5 is held by the flat surface 95 of the backlight chassis 9.
  • the light source 6 includes, for example, an LED and a diffusion lens that diffuses light emitted from the LED.
  • the light source 6 is not limited to this.
  • the light emitted from the light source 6 is reflected directly or by the reflection sheet 8, the vertical plate portion 91 and the inclined plate portion 92, and enters the back surface 52 of the diffusion plate 5.
  • polarizing sheets are respectively disposed on the display surface 21 and the back surface 22 of the liquid crystal display panel 2.
  • the polarizing sheet 4 provided on the display surface 21 of the liquid crystal display panel 2 is attached to the display surface 21 of the liquid crystal display panel 2 and has a first size that is substantially equal to the display surface 21. It has the part 43 and the 2nd part 44 extended in the edge of the 1st part 43.
  • the other polarizing sheet is attached to the back surface 22 of the liquid crystal display panel 2.
  • FIG. 4 is a schematic diagram showing the polarizing sheet 4 of the display device 100 according to the first embodiment. For convenience of explanation, FIG. 4 shows a development view of the polarizing sheet 4.
  • the first portion 43 of the polarizing sheet 4 is a rectangle having a size substantially equal to the display surface 21 of the liquid crystal display panel 2, and is opposed to each other in either the horizontal direction D1 or the vertical direction D2 on the display surface 21.
  • Two second portions 44 are extended from both ends of the first portion 43 toward the back of the display device 100 in a direction substantially perpendicular to the first portion 43.
  • the second portion 44 is arranged to be bent so as to intersect the first portion 43.
  • the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example.
  • the second part 44 has a strip shape, and the dimension L1 in the vertical direction D2 is the same as the dimension of the short side of the first part 43.
  • the present invention is not limited to this, and the dimension L1 in the longitudinal direction D2 of the second portion 44 may be shorter than the short side of the first portion 43. For example, it may be about half the short side of the first portion 43. good.
  • the dimension L2 of the second portion 44 in the thickness direction D3 is at least longer than the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5. Therefore, the end portion of the second portion 44 in the thickness direction D3 has a portion facing the side wall 93 of the backlight chassis 9.
  • the first portion 43 Since the first portion 43 has an adhesive surface formed on the back surface 42 opposite to the front surface 41, the back surface 42 of the first portion 43 is adhered to the display surface 21 of the liquid crystal display panel 2.
  • the second portion 44 is fixed by being sandwiched between the side wall 93 of the backlight chassis 9 and the cylindrical portion 73 of the bezel 7, for example.
  • the second portion 44 may have an adhesive surface at least at the end of the inner surface 45 facing the side wall 93 of the backlight chassis 9. In such a case, the end portion of the inner side surface 45 of the second portion 44 is fixed by being adhered to the side wall 93 of the backlight chassis 9.
  • the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the second portions 44 provided at both opposing ends are formed by the backlight chassis 9 and the bezel 7. It is pinched.
  • the display device 100 Since the display device 100 according to the present embodiment has the configuration described above, it is difficult to fix the liquid crystal display panel 2 as the frame 72 becomes narrower as the liquid crystal display panel 2 becomes thinner. When the display device 100 is handled, the problem that the liquid crystal display panel 2 falls off the bezel 7 through the display window 71 can be solved.
  • the first portion 43 is fixed to the backlight chassis 9 by the second portion 44 so as to cover the display surface 21 of the liquid crystal display panel 2. That is, the liquid crystal display panel 2, the optical sheet 3, and the like are fixed not only by the bezel 7 but also by the polarizing sheet 4. Therefore, for example, even when the liquid crystal display panel 2 bends in a face-down state, the liquid crystal display panel 2, the optical sheet 3 and the like do not fall off.
  • the display device 100 according to the present embodiment is not limited to the above description.
  • an adhesive surface is formed on the outer surface 45B opposite to the inner surface 45, and the outer surface 45B is adhered to the cylindrical portion 73 of the bezel 7 so that the polarizing sheet is fixed. You may do it.
  • FIG. 5 is a schematic diagram showing a modification of the polarizing sheet 4 of the display device 100 according to the first embodiment. For convenience of explanation, FIG. 5 shows a development view of the polarizing sheet 4.
  • the polarizing sheet 4 has a first portion 43 having a size substantially equal to the display surface 21 of the liquid crystal display panel 2.
  • two second portions 44 are arranged at both ends of the first portion 43 facing each other in both the horizontal direction D ⁇ b> 1 and the vertical direction D ⁇ b> 2 so as to intersect the first portion 43 substantially perpendicularly. It is extended.
  • second portions 46 are respectively provided at both ends of the first portion 43 in the horizontal direction D1
  • second portions 47 are respectively provided at both ends of the first portion 43 in the vertical direction D2 intersecting the horizontal direction D1. Is provided.
  • the first portion 43 and the second portions 46 and 46 provided at both ends of the first portion 43 in the lateral direction D1 are the same as the second portion 44 described above, and detailed description thereof is omitted.
  • the second part 47 has a strip shape, and the dimension L3 in the lateral direction D1 is the same as the dimension of the long side of the first part 43.
  • the present invention is not limited to this, and the dimension L3 in the lateral direction D1 of the second portion 47 may be shorter than the long side of the first portion 43. For example, it may be about half the long side of the first portion 43. good.
  • the dimension L4 of the second portion 47 in the thickness direction D3 is at least longer than the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5. Accordingly, the end portion of the second portion 47 in the thickness direction D3 faces the side wall 93 of the backlight chassis 9.
  • the second portion 47 is fixed by being sandwiched between the side wall 93 of the backlight chassis 9 and the cylindrical portion 73 of the bezel 7, for example. Further, the second portion 47 may have an adhesive surface at least at the end of the inner surface 49 facing the side wall 93 of the backlight chassis 9. In such a case, the end portion of the inner side surface 49 of the second portion 47 is fixed by being adhered to the side wall 93 of the backlight chassis 9.
  • the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the second portions 46 provided at both ends facing each other in the horizontal direction D 1 and the vertical direction D 2, 46 and the second portions 47 and 47 are sandwiched between the backlight chassis 9 and the bezel 7.
  • the display device 100 has the second portion 46 and the second portion 47 in a state where the first portion 43 of the polarizing sheet 4 covers the display surface 21 of the liquid crystal display panel 2. Is fixed by being sandwiched between the backlight chassis 9 and the bezel 7. Therefore, for example, even when the liquid crystal display panel 2 bends in a face-down state, the liquid crystal display panel 2, the optical sheet 3 and the like do not fall off.
  • the display device 100 is not limited to the above description.
  • an adhesive surface may be formed on the outer surface 49 ⁇ / b> B opposite to the inner surface 49 in the second portion 47, and the outer surface 49 ⁇ / b> B may be adhered to the cylindrical portion 73 of the bezel 7.
  • the display device 100 is not limited to the above description.
  • the dimension L4 of the second part 47 and the dimension L2 of the second part 46 may be different from each other.
  • the dimension L2 of the second portion 46 may be longer than the dimension L4 of the second portion 47.
  • the dimension L1 in the vertical direction D2 of the second part 46 is shorter than the dimension L3 in the horizontal direction D1 of the second part 47, and the area adhered to the side wall 93 of the backlight chassis 9 can be relatively small. .
  • the display device 100 is not limited to the above description.
  • the second portion 44 (second portion 46 and second portion 47) is sandwiched between the side wall 93 of the backlight chassis 9 and the cylindrical portion 73 of the bezel 7, the second portion 44 (second portion 46).
  • the second portion 44 may be adhered to the side wall 93 of the backlight chassis 9 by providing an adhesive surface at the end of the second portion 47).
  • the display device 100 can reliably solve the problem that the liquid crystal display panel 2 falls off the bezel 7 through the display window 71 during handling.
  • FIG. 6 is a partial cross-sectional view of display device 100 according to the second embodiment.
  • the polarizing sheet 4 is attached to the display surface 21 of the liquid crystal display panel 2 and includes a first portion 43 having a size equal to that of the display surface 21 and a second portion 44 extending from the edge of the first portion 43. .
  • two second portions 44 are arranged substantially perpendicularly to the first portion 43 at both ends of the first portion 43 facing each other in either the horizontal direction D 1 or the vertical direction D 2.
  • Each is extended.
  • the case where the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example.
  • the first portion 43 is the same as in the first embodiment, and a detailed description thereof is omitted.
  • the second part 44 has a strip shape, and the dimension L1 in the longitudinal direction D2 is the same as the dimension of the short side of the first part 43.
  • the dimension L2 of the second portion 44 in the thickness direction D3 is at least longer than the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5.
  • the end of the second portion 44 in the thickness direction D ⁇ b> 3 is disposed near the end of the side wall 93 of the backlight chassis 9 on the bottom 94 side.
  • the display device 100 has a fixing mechanism for fixing the polarizing sheet 4.
  • the second portion 44 is provided with a through hole 48 (first through hole) penetrating the second portion 44 in the thickness direction at the end portion.
  • the cylindrical portion 73 of the bezel 7 has a cylindrical through hole 74 (third through hole) that penetrates the cylindrical portion 73 of the bezel 7 in the thickness direction at a position facing the through hole 48 of the second portion 44 in the lateral direction D1. Hole) is provided.
  • the side wall 93 of the backlight chassis 9 has a wall through hole 96 (second through hole) penetrating the side wall 93 of the backlight chassis 9 in the thickness direction at a position facing the through hole 48 of the second portion 44 in the lateral direction D1. Hole) is provided.
  • the through hole 48 of the second portion 44, the cylinder through hole 74 of the cylinder part 73, and the wall through hole 96 of the side wall 93 are formed substantially coaxially and have substantially the same size.
  • the display device 100 includes a fixing member R such as a male screw that is inserted through the through hole 48 of the second portion 44, the cylinder through hole 74 of the cylinder portion 73, and the wall through hole 96 of the side wall 93. It has.
  • the fixing member R has an outer diameter corresponding to the through hole 48, the tube through hole 74, and the wall through hole 96, and the second portion 44 (polarizing sheet 4) is fixed by being inserted into these.
  • the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the polarizing portion 4 is fixed by fixing the second portion 44 by the fixing mechanism.
  • the second portion 44 may have at least an adhesive surface on the inner side surface 45, and the inner side surface 45 may be adhered to the side wall 93 of the backlight chassis 9. That is, the second portion 44 may be fixed by adhesion between the inner surface 45 and the side wall 93 of the backlight chassis 9 in addition to the fixing mechanism.
  • the display device 100 can reliably solve the problem that the liquid crystal display panel 2 falls off from the bezel 7 via the display window 71 during handling.
  • FIG. 7 is a partial cross-sectional view of display device 100 according to the third embodiment.
  • the polarizing sheet 4 is attached to the display surface 21 of the liquid crystal display panel 2 and includes a first portion 43 having a size equal to that of the display surface 21 and a second portion 44 extending from the edge of the first portion 43. .
  • two second portions 44 are arranged substantially perpendicularly to the first portion 43 at both ends of the first portion 43 facing each other in either the horizontal direction D 1 or the vertical direction D 2. Each extends toward the back of the display device 100.
  • the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example.
  • the first portion 43 is the same as in the first embodiment, and a detailed description thereof is omitted.
  • the second part 44 has a strip shape, and the dimension L1 in the vertical direction D2 is the same as the dimension of the short side of the first part 43.
  • the dimension L2 of the second portion 44 in the thickness direction D3 is at least the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5, and the dimension of the side wall 93 of the backlight chassis 9 in the thickness direction D3. long. Therefore, the end portion of the second portion 44 reaches the bottom outer surface 97 opposite to the bottom surface 94 in the backlight chassis 9, in other words, the bottom outer surface 97 continuous with the outer surface of the side wall 93.
  • the second portion 44 has an adhesive surface at the end of the inner surface 45 facing the bottom outer surface 97 at least at the end of the backlight chassis 9 on the bottom outer surface 97 side. Therefore, the end portion of the inner side surface 45 of the second portion 44 is fixed by being adhered to the bottom outer surface 97 of the backlight chassis 9.
  • the first portion 43 is affixed to the liquid crystal display panel 2 so as to cover the display surface 21, and an end portion of the second portion 44 is adhered to the bottom outer surface 97 of the backlight chassis 9, thereby polarizing sheet. 4 is fixed to the backlight chassis 9.
  • the display device 100 can reliably solve the problem that the liquid crystal display panel 2 falls off from the bezel 7 via the display window 71 during handling.
  • FIG. 8 is a cross-sectional view showing the main configuration of the display device 100 according to the fourth embodiment. That is, FIG. 8 is a cross-sectional view in the horizontal direction of the display device 100 according to the present embodiment.
  • the display device 100 is a so-called curved display, and the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5 are curved.
  • the liquid crystal panel 1 is curved with a predetermined curvature so as to be convex.
  • the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5 are curved with substantially the same curvature.
  • the liquid crystal display panel 2 is disposed on the outermost side
  • the diffusion plate 5 is disposed on the innermost side
  • the optical sheet 3 is disposed between the liquid crystal display panel 2 and the diffusion plate 5.
  • the polarizing sheet 4 is attached to the display surface 21 of the liquid crystal display panel 2 and includes a first portion 43 having a size equal to that of the display surface 21 and a second portion 44 extending from the edge of the first portion 43. .
  • two second portions 44 are obliquely formed with respect to the first portion 43 at both ends of the first portion 43 facing each other in either the horizontal direction D 1 or the vertical direction D 2 (not shown). Each of them extends toward the back of the display device 100 in the intersecting direction.
  • the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example.
  • the first portion 43 is substantially the same as in the first embodiment, and a detailed description thereof is omitted.
  • the second part 44 has a strip shape, and the dimension L1 in the vertical direction D2 is the same as the dimension of the short side of the first part 43. Further, in the second portion 44, the short side of the first portion 43, that is, the dimension L2 from the base to the tip is at least longer than the sum of the thicknesses of the liquid crystal display panel 2 and the optical sheet 3.
  • the end of the second portion 44 in the horizontal direction D1 is aligned with the end of the diffusion plate 5 in the horizontal direction D1, for example.
  • the second portion 44 (polarizing sheet 4) is fixed to the diffusion plate 5 by the clip 10.
  • the clip 10 has a bowl shape corresponding to the end of the diffusion plate 5 in the horizontal direction D1, and is provided at both ends of the diffusion plate 5 in the horizontal direction D1.
  • the clip 10 sandwiches the end of the diffusion plate 5 and the end of the second portion 44. That is, the clip 10 sandwiches the back surface 52 of the diffuser plate 5 and the front surface 41 of the polarizing sheet 4 from the outside, whereby the end portion of the second portion 44 is sandwiched between the diffuser plate 5 and the clip 10.
  • the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the second portion 44 is fixed to the diffusion plate 5 by the clip 10, whereby the polarizing sheet 4 is fixed. .
  • the display device 100 has a problem that the liquid crystal display panel 2 falls off the bezel 7 (not shown) during handling even when the liquid crystal display panel 2 or the like is curved. can be solved.
  • the display device 100 is not limited to the above description.
  • the second portion 44 may be configured to have an adhesive surface at an end portion of the inner side surface 45 facing the peripheral edge portion of the surface 51 of the diffusion plate 5 at least in the lateral direction D1. That is, the second portion 44 may be fixed by being adhered to the end portion of the surface 51 of the diffusion plate 5 at the end portion of the inner surface 45 in addition to the fixing by the clip 10.
  • the present invention is not limited thereto. Even when the liquid crystal display panel 2 or the like is flat, the same effect can be obtained.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)

Abstract

A display device (100) provided with a liquid crystal display panel (2) having a display surface (21) on which an image is displayed, and a polarizing sheet (4) covering the display surface (21), wherein the polarizing sheet (4) is provided with a first portion (43) affixed to the display surface (21) of the liquid crystal display panel (2), and a second portion (44) extending in a direction orthogonal to the first portion (43) from both mutually facing ends of the first portion (43), the second portion (44) being secured to, for example, a backlight chassis (9) containing a light source (6).

Description

表示装置Display device
　本発明は、画像が表示される表示面を有する表示パネルと、前記表示面を覆う偏光シートとを備える表示装置に関する。 The present invention relates to a display device including a display panel having a display surface on which an image is displayed and a polarizing sheet covering the display surface.
　近年、液晶テレビジョン、プラズマテレビジョン等の表示装置は大型化傾向にあり、該表示装置において、狭額縁化及び薄型化が求められている。 In recent years, display devices such as liquid crystal televisions and plasma televisions have been increasing in size, and there is a demand for narrowing and thinning of the display devices.
　例えば、特許文献１では、その前側から後側へ順次積層された液晶パネル、光学シート、バックライト及びバックライト収容体を備える液晶表示装置において、液晶パネル、光学シート、バックライト及びバックライト収容体を挟持する矩形状の枠体を備えることによって、薄型化及び狭額縁化を実現することができる液晶表示装置が開示されている。 For example, in Patent Document 1, in a liquid crystal display device including a liquid crystal panel, an optical sheet, a backlight, and a backlight container sequentially stacked from the front side to the rear side, the liquid crystal panel, the optical sheet, the backlight, and the backlight container There has been disclosed a liquid crystal display device that can be made thin and have a narrow frame by including a rectangular frame that sandwiches the frame.
特開２０１５－２６０６５号公報Japanese Patent Laying-Open No. 2015-26065
　表示装置においては狭額縁化及び薄型化と共に大型化が進んでいる。表示装置の狭額縁化及び薄型化に伴ってベゼルが占める割合が低くなり、表示パネルの固定が難しくなる一方、表示装置の大型化によって表示パネルが変形しやすくなり、かつ荷重が増えつつある。従って、このような大型狭額縁の表示装置を取り扱う際に、例えば、フェイスダウンの状態にて表示パネルが撓んだとき、表示パネルがベゼルから脱落するという問題が生じる。 In display devices, the size is increasing along with the narrowing and thinning of frames. As the display device is narrowed and thinned, the bezel occupies a lower proportion and it becomes difficult to fix the display panel. On the other hand, the display device is easily deformed and the load is increasing due to the increase in the size of the display device. Therefore, when handling such a large narrow frame display device, for example, when the display panel is bent in a face-down state, the display panel falls off the bezel.
　本発明は、斯かる事情に鑑みてなされたものであり、その目的とするところは、画像が表示される表示パネルと、該表示パネルを覆う偏光シートとを備える表示装置において、その取り扱いの際、表示パネルがベゼルから脱落することを防止できる表示装置を提供することにある。 The present invention has been made in view of such circumstances, and an object thereof is to provide a display device that includes a display panel on which an image is displayed and a polarizing sheet that covers the display panel. Another object of the present invention is to provide a display device that can prevent the display panel from falling off the bezel.
　本実施例に係る表示装置は、画像が表示される表示面を有する表示パネルと、前記表示面を覆う偏光シートとを備える表示装置において、前記偏光シートは、前記表示面に貼り付けられた第１部分と、前記第１部分における互いに対向する両端から、該第１部分と交差する方向に延びる第２部分とを備えることを特徴とする。 The display device according to the present embodiment includes a display panel having a display surface on which an image is displayed and a polarizing sheet covering the display surface. The polarizing sheet is attached to the display surface. 1 part and a 2nd part extended in the direction which cross | intersects this 1st part from the mutually opposing both ends in the said 1st part, It is characterized by the above-mentioned.
　本実施例によれば、前記表示装置の取り扱いの際、前記表示パネルが自重によって、又は前記表示パネルに撓みが生じることによって、表示パネルがベゼルから脱落することを防止できる。 According to this embodiment, when the display device is handled, the display panel can be prevented from falling off the bezel due to its own weight or due to the display panel being bent.
実施の形態１に係る表示装置の外観を示す正面図である。1 is a front view illustrating an appearance of a display device according to Embodiment 1. FIG. 実施の形態１に係る表示装置の要部構成を示す分解斜視図である。FIG. 3 is an exploded perspective view illustrating a main configuration of the display device according to the first embodiment. 図１のＡ－Ｂ線による横断面図である。FIG. 2 is a cross-sectional view taken along line AB in FIG. 1. 実施の形態１に係る表示装置の偏光シートを示す模式図である。4 is a schematic diagram illustrating a polarizing sheet of the display device according to Embodiment 1. FIG. 実施の形態１に係る表示装置の偏光シートの変形例を示す模式図である。6 is a schematic diagram showing a modification of the polarizing sheet of the display device according to Embodiment 1. FIG. 実施の形態２に係る表示装置の部分的横断面図である。6 is a partial cross-sectional view of a display device according to Embodiment 2. FIG. 実施の形態３に係る表示装置の部分的横断面図である。6 is a partial cross-sectional view of a display device according to Embodiment 3. FIG. 実施の形態４に係る表示装置の要部構成を示す横断面図である。FIG. 10 is a cross-sectional view illustrating a configuration of a main part of a display device according to Embodiment 4.
　以下に、本発明の実施の形態に係る表示装置を、いわゆる液晶表示パネルを備えるテレビジョン受像機をはじめとする表示装置に適用した場合を例として、図面に基づいて詳述する。 Hereinafter, a case where the display device according to an embodiment of the present invention is applied to a display device such as a television receiver including a so-called liquid crystal display panel will be described in detail with reference to the drawings.
（実施の形態１）
　図１は実施の形態１に係る表示装置の外観を示す正面図である。図中符号１００は、本実施の形態に係る表示装置を示している。以下、説明の便宜上、図面視にて、表示装置１００の左右方向を横方向Ｄ１、上下方向を縦方向Ｄ２という。また、表示装置１００の表（後述する液晶表示パネル２の表側）及び裏の方向を厚み方向Ｄ３（図２参照）という。 (Embodiment 1)
FIG. 1 is a front view showing the appearance of the display device according to the first embodiment. Reference numeral 100 in the figure indicates a display device according to the present embodiment. Hereinafter, for convenience of explanation, in the drawing view, the horizontal direction of the display device 100 is referred to as a horizontal direction D1, and the vertical direction is referred to as a vertical direction D2. Further, the front side (front side of the liquid crystal display panel 2 described later) and the back side of the display device 100 are referred to as a thickness direction D3 (see FIG. 2).
　図２は実施の形態１に係る表示装置１００の要部構成を示す分解斜視図であり、図３は、図１のＡ－Ｂ線による横断面図である。図３は本実施の形態に係る表示装置１００の要部構成を概念的に示す。 FIG. 2 is an exploded perspective view showing a main configuration of the display device 100 according to the first embodiment, and FIG. 3 is a cross-sectional view taken along line AB in FIG. FIG. 3 conceptually shows a main configuration of the display device 100 according to the present embodiment.
　本実施の形態に係る表示装置１００は、図示するように、表側の表示面２１に映像を表示する矩形の液晶表示パネル２を備えている。また、液晶表示パネル２の裏側には光学シート３と、拡散板５と、反射シート８と、光源６が斯かる順に設けられている。 The display device 100 according to the present embodiment includes a rectangular liquid crystal display panel 2 that displays an image on the front display surface 21 as illustrated. Further, on the back side of the liquid crystal display panel 2, an optical sheet 3, a diffusion plate 5, a reflection sheet 8, and a light source 6 are provided in this order.
　表示装置１００はバックライトシャーシ９（筐体）を備えており、バックライトシャーシ９は液晶表示パネル２側が開放された直方体の箱状をなす。反射シート８及び光源６はバックライトシャーシ９に収容されている。 The display device 100 includes a backlight chassis 9 (housing), and the backlight chassis 9 has a rectangular parallelepiped box shape with the liquid crystal display panel 2 side opened. The reflection sheet 8 and the light source 6 are accommodated in the backlight chassis 9.
　液晶表示パネル２、光学シート３の周縁及び拡散板５の側面、並びにバックライトシャーシ９の側壁は矩形の枠形状のベゼル７によって取り囲まれている。 The peripheral edge of the liquid crystal display panel 2, the optical sheet 3, the side surface of the diffusion plate 5, and the side wall of the backlight chassis 9 are surrounded by a bezel 7 having a rectangular frame shape.
　厚み方向Ｄ３において、液晶表示パネル２の表示面２１と反対側の裏面２２は、光学シート３の表（おもて）面３１と対向しており、該表面３１と反対側の光学シート３の裏面３２は拡散板５の表面５１と対向しており、該表面５１と反対側の拡散板５の裏面５２は、反射シート８と対向するように配置されている。 In the thickness direction D <b> 3, the back surface 22 opposite to the display surface 21 of the liquid crystal display panel 2 faces the front (front) surface 31 of the optical sheet 3, and the optical sheet 3 on the side opposite to the front surface 31. The rear surface 32 faces the front surface 51 of the diffusion plate 5, and the rear surface 52 of the diffusion plate 5 opposite to the front surface 51 is arranged to face the reflection sheet 8.
　ベゼル７は、液晶表示パネル２及び拡散板５の側面、並びに、後述するバックライトシャーシ９の側壁９３を囲む中空矩形の筒部７３を有しており、筒部７３の内側面は液晶表示パネル２及び拡散板５の側面、並びに、バックライトシャーシ９の側壁９３と対向している。 The bezel 7 has a hollow rectangular cylindrical portion 73 that surrounds the side surfaces of the liquid crystal display panel 2 and the diffusion plate 5 and a side wall 93 of the backlight chassis 9 described later. The inner side surface of the cylindrical portion 73 is the liquid crystal display panel. 2 and the side surface of the diffusion plate 5 and the side wall 93 of the backlight chassis 9.
　また、ベゼル７は、厚み方向Ｄ３における筒部７３の両端のうち、表側の縁から液晶表示パネル２の表示面２１の周縁部を覆うように延設された額縁部７２を有している。額縁部７２は矩形の環状をなしている。すなわち、額縁部７２の内側には、矩形の表示窓７１が開口しており、額縁部７２の外周縁から内周縁までは所定の幅を有している。液晶表示パネル２は、表示面２１の周縁部の非表示領域がベゼル７の額縁部７２によって覆われている。ユーザは表示窓７１を介して液晶表示パネル２の表示面２１に表示される画像を視認することができる。 Further, the bezel 7 has a frame portion 72 extending so as to cover the peripheral edge portion of the display surface 21 of the liquid crystal display panel 2 from the front side edge of both ends of the cylindrical portion 73 in the thickness direction D3. The frame portion 72 has a rectangular annular shape. That is, a rectangular display window 71 is opened inside the frame portion 72, and has a predetermined width from the outer peripheral edge to the inner peripheral edge of the frame portion 72. In the liquid crystal display panel 2, the non-display area at the periphery of the display surface 21 is covered with the frame portion 72 of the bezel 7. The user can visually recognize an image displayed on the display surface 21 of the liquid crystal display panel 2 through the display window 71.
　液晶表示パネル２の裏面２２側に設けられた光学シート３は、光源６から発せられ、拡散板５を介して入る光に対して拡散、集光等を行ない、より均一な光を液晶表示パネル２に向けて出射させる、公知のものである。例えば、光学シート３は、重ね合わせた３枚の単位シートを有する。より詳しくは、光学シート３は２枚の拡散シートと、１枚のプリズムシートとを有しており、該プリズムシートは２枚の拡散シートの間に配置されている。プリズムシート及び拡散シートは同じ矩形であり、略同一の形状及び面積を有している。 The optical sheet 3 provided on the back surface 22 side of the liquid crystal display panel 2 diffuses and condenses light emitted from the light source 6 and enters through the diffusion plate 5 to provide more uniform light to the liquid crystal display panel. It is a well-known one that emits light toward 2. For example, the optical sheet 3 has three unit sheets stacked. More specifically, the optical sheet 3 has two diffusion sheets and one prism sheet, and the prism sheet is disposed between the two diffusion sheets. The prism sheet and the diffusion sheet are the same rectangle and have substantially the same shape and area.
　光学シート３の裏面３２側には矩形の拡散板５が設けられており、拡散板５の表面５１と光学シート３の裏面３２とが対向するように配置されている。拡散板５は光源６から出射され、裏面５２から入射される光を拡散させて表面５１を介して光学シート３に向けて出射させる。 The rectangular diffusion plate 5 is provided on the back surface 32 side of the optical sheet 3, and the front surface 51 of the diffusion plate 5 and the back surface 32 of the optical sheet 3 are arranged to face each other. The diffusion plate 5 is emitted from the light source 6, diffuses the light incident from the back surface 52, and emits the light toward the optical sheet 3 through the front surface 51.
  拡散板５は、例えば、アクリル樹脂、ポリカーボネート樹脂等の透明樹脂に拡散剤が添加された乳白色の樹脂からなる。光源６としてＬＥＤのような点光源を使用した場合、拡散板５は各点光源からの光を拡散させて表面５１から光学シート３に向けて均一に出射させる。拡散板５は請求項に記載の光学板に該当する。なお、これに限るものでなく、前記光学板は導光板であっても良い。 The eaves diffusion plate 5 is made of, for example, a milky white resin obtained by adding a diffusing agent to a transparent resin such as an acrylic resin or a polycarbonate resin. When a point light source such as an LED is used as the light source 6, the diffusion plate 5 diffuses the light from each point light source and emits it uniformly from the surface 51 toward the optical sheet 3. The diffusion plate 5 corresponds to the optical plate described in the claims. However, the present invention is not limited to this, and the optical plate may be a light guide plate.
　厚み方向Ｄ３において、拡散板５より裏側にはバックライトシャーシ９が設けられ、バックライトシャーシ９の底面９４には複数の光源６が装着されている。バックライトシャーシ９の底面９４は矩形であり、底面９４の端部には側壁９３が拡散板５に向けて厚み方向Ｄ３に突設されている。すなわち、バックライトシャーシ９の側壁９３の外側面はベゼル７の筒部７３の内側面と対向している。 In the thickness direction D3, a backlight chassis 9 is provided behind the diffusion plate 5, and a plurality of light sources 6 are mounted on the bottom surface 94 of the backlight chassis 9. The bottom surface 94 of the backlight chassis 9 is rectangular, and a side wall 93 projects from the end of the bottom surface 94 toward the diffusion plate 5 in the thickness direction D3. In other words, the outer side surface of the side wall 93 of the backlight chassis 9 faces the inner side surface of the cylindrical portion 73 of the bezel 7.
　また、バックライトシャーシ９の底面９４には反射シート８が配置されており、反射シート８に設けられた複数の開口（図示せず）において光源６が反射シート８の表側に突設されている。 A reflective sheet 8 is disposed on the bottom surface 94 of the backlight chassis 9, and the light source 6 projects from the front side of the reflective sheet 8 at a plurality of openings (not shown) provided in the reflective sheet 8. .
　更に、バックライトシャーシ９は、側壁９３の内側面付近に、底面９４に対して略垂直に突設された垂直板部９１と、垂直板部９１の端部から側壁９３の端部に向けて、底面９４に対して斜めに設けられた傾斜板部９２とを有する。すなわち、傾斜板部９２は、拡散板５の裏面５２と斜めに対向しており、底面９４に向けて縮幅するテーパー状をなしている。垂直板部９１及び傾斜板部９２は内側面に光源６から出射された光を拡散板５側に反射する反射膜が形成されていてもよい。 Further, the backlight chassis 9 has a vertical plate portion 91 projecting substantially perpendicular to the bottom surface 94 in the vicinity of the inner surface of the side wall 93, and from the end of the vertical plate portion 91 toward the end of the side wall 93. And an inclined plate portion 92 provided obliquely with respect to the bottom surface 94. That is, the inclined plate portion 92 is diagonally opposed to the back surface 52 of the diffusion plate 5 and has a tapered shape that is reduced in width toward the bottom surface 94. The vertical plate portion 91 and the inclined plate portion 92 may have a reflection film that reflects light emitted from the light source 6 toward the diffusion plate 5 on the inner surface.
　傾斜板部９２の表側（表示面側）の端部又は側壁９３の表側（表示面側）の端部には平坦面９５が形成されており、平坦面９５に拡散板５の裏面５２の周縁部が当接している。すなわち、拡散板５はバックライトシャーシ９の平坦面９５によって保持されている。 A flat surface 95 is formed on the front side (display surface side) end of the inclined plate portion 92 or the front side (display surface side) end of the side wall 93, and the periphery of the back surface 52 of the diffusion plate 5 is formed on the flat surface 95. The parts are in contact. That is, the diffusion plate 5 is held by the flat surface 95 of the backlight chassis 9.
　光源６は、例えば、ＬＥＤ及びＬＥＤが発する光を拡散する拡散レンズを有する。光源６はこれに限るものではない。 The light source 6 includes, for example, an LED and a diffusion lens that diffuses light emitted from the LED. The light source 6 is not limited to this.
　光源６から出射された光は直接、或いは反射シート８、垂直板部９１及び傾斜板部９２によって反射され、拡散板５の裏面５２に入る。 The light emitted from the light source 6 is reflected directly or by the reflection sheet 8, the vertical plate portion 91 and the inclined plate portion 92, and enters the back surface 52 of the diffusion plate 5.
　また、液晶表示パネル２の表示面２１及び裏面２２には偏光シートが夫々配置されている。斯かる２つの偏光シートのうち、液晶表示パネル２の表示面２１に設けられた偏光シート４は液晶表示パネル２の表示面２１に貼り付けられ、表示面２１と略等しい大きさを有する第１部分４３と、第１部分４３の縁に延設された第２部分４４とを有する。なお、前記２つの偏光シートのうち他の偏光シートは液晶表示パネル２の裏面２２に貼り付けられている。 Further, polarizing sheets are respectively disposed on the display surface 21 and the back surface 22 of the liquid crystal display panel 2. Of the two polarizing sheets, the polarizing sheet 4 provided on the display surface 21 of the liquid crystal display panel 2 is attached to the display surface 21 of the liquid crystal display panel 2 and has a first size that is substantially equal to the display surface 21. It has the part 43 and the 2nd part 44 extended in the edge of the 1st part 43. As shown in FIG. Of the two polarizing sheets, the other polarizing sheet is attached to the back surface 22 of the liquid crystal display panel 2.
　図４は実施の形態１に係る表示装置１００の偏光シート４を示す模式図である。説明の便宜上、図４には偏光シート４の展開図を示している。 FIG. 4 is a schematic diagram showing the polarizing sheet 4 of the display device 100 according to the first embodiment. For convenience of explanation, FIG. 4 shows a development view of the polarizing sheet 4.
　詳しくは、偏光シート４の第１部分４３は液晶表示パネル２の表示面２１と略等しい大きさの矩形であり、表示面２１において、横方向Ｄ１及び縦方向Ｄ２の何れかにて互いに対向する第１部分４３の両端には２つの第２部分４４が第１部分４３と略垂直に交差する方向に表示装置１００の裏に向けて夫々延設されている。例えば図３に示すように、第２部分４４は、第１部分４３に交差するように折り曲げて配置されている。以下においては、横方向Ｄ１における第１部分４３の両端、すなわち、第１部分４３の短辺に第２部分４４が夫々設けられた場合を例として説明する。 Specifically, the first portion 43 of the polarizing sheet 4 is a rectangle having a size substantially equal to the display surface 21 of the liquid crystal display panel 2, and is opposed to each other in either the horizontal direction D1 or the vertical direction D2 on the display surface 21. Two second portions 44 are extended from both ends of the first portion 43 toward the back of the display device 100 in a direction substantially perpendicular to the first portion 43. For example, as shown in FIG. 3, the second portion 44 is arranged to be bent so as to intersect the first portion 43. Below, the case where the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example.
　第２部分４４は短冊状であり、縦方向Ｄ２の寸法Ｌ１が第１部分４３の短辺の寸法と同じである。しかし、これに限るものでなく、第２部分４４の縦方向Ｄ２の寸法Ｌ１は第１部分４３の短辺より短くてもよく、例えば、第１部分４３の短辺の半分程度であっても良い。 The second part 44 has a strip shape, and the dimension L1 in the vertical direction D2 is the same as the dimension of the short side of the first part 43. However, the present invention is not limited to this, and the dimension L1 in the longitudinal direction D2 of the second portion 44 may be shorter than the short side of the first portion 43. For example, it may be about half the short side of the first portion 43. good.
　厚み方向Ｄ３における第２部分４４の寸法Ｌ２は、少なくとも、液晶表示パネル２、光学シート３及び拡散板５の厚みの和より長い。従って、厚み方向Ｄ３における第２部分４４の端部は、バックライトシャーシ９の側壁９３と対向する部分を有している。 The dimension L2 of the second portion 44 in the thickness direction D3 is at least longer than the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5. Therefore, the end portion of the second portion 44 in the thickness direction D3 has a portion facing the side wall 93 of the backlight chassis 9.
　第１部分４３は、表面４１と反対側の裏面４２には粘着面が形成されているので、第１部分４３の裏面４２は液晶表示パネル２の表示面２１と粘着している。また、第２部分４４は、例えば、バックライトシャーシ９の側壁９３及びベゼル７の筒部７３によって挟持されることによって固定される。これに限るものでなく、第２部分４４は、少なくとも、バックライトシャーシ９の側壁９３と対向する内側面４５の端部に粘着面を有していてもよい。このような場合は、第２部分４４はその端部の内側面４５の端部がバックライトシャーシ９の側壁９３に粘着されて固定される。 Since the first portion 43 has an adhesive surface formed on the back surface 42 opposite to the front surface 41, the back surface 42 of the first portion 43 is adhered to the display surface 21 of the liquid crystal display panel 2. The second portion 44 is fixed by being sandwiched between the side wall 93 of the backlight chassis 9 and the cylindrical portion 73 of the bezel 7, for example. The second portion 44 may have an adhesive surface at least at the end of the inner surface 45 facing the side wall 93 of the backlight chassis 9. In such a case, the end portion of the inner side surface 45 of the second portion 44 is fixed by being adhered to the side wall 93 of the backlight chassis 9.
　すなわち、偏光シート４おいては、第１部分４３が液晶表示パネル２に表示面２１を覆う状態で貼り付けられ、対向する両端に設けられた第２部分４４はバックライトシャーシ９及びベゼル７によって挟持されている。 That is, in the polarizing sheet 4, the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the second portions 44 provided at both opposing ends are formed by the backlight chassis 9 and the bezel 7. It is pinched.
　以上に記載した構成を有することから、本実施の形態に係る表示装置１００は、液晶表示パネル２の薄型化と共に、額縁７２が狭くなることに伴い、液晶表示パネル２の固定が困難となったり、表示装置１００の取り扱いの際液晶表示パネル２が表示窓７１を介してベゼル７から脱落するといった問題を解決できる。 Since the display device 100 according to the present embodiment has the configuration described above, it is difficult to fix the liquid crystal display panel 2 as the frame 72 becomes narrower as the liquid crystal display panel 2 becomes thinner. When the display device 100 is handled, the problem that the liquid crystal display panel 2 falls off the bezel 7 through the display window 71 can be solved.
　本実施の形態に係る表示装置１００は、上述したように、第１部分４３は、液晶表示パネル２の表示面２１を覆う状態で第２部分４４によってバックライトシャーシ９に固定されている。すなわち、液晶表示パネル２、光学シート３等がベゼル７のみでなく、偏光シート４によっても固定されている。従って、例えば、フェイスダウンの状態にて液晶表示パネル２の撓みが生じた場合であっても液晶表示パネル２、光学シート３等が脱落しない。　　 As described above, in the display device 100 according to the present embodiment, the first portion 43 is fixed to the backlight chassis 9 by the second portion 44 so as to cover the display surface 21 of the liquid crystal display panel 2. That is, the liquid crystal display panel 2, the optical sheet 3, and the like are fixed not only by the bezel 7 but also by the polarizing sheet 4. Therefore, for example, even when the liquid crystal display panel 2 bends in a face-down state, the liquid crystal display panel 2, the optical sheet 3 and the like do not fall off. *
　本実施の形態に係る表示装置１００は以上の記載に限るものでない。例えば、第２部分４４において、内側面４５と反対側の外側面４５Ｂに粘着面を形成し、外側面４５Ｂがベゼル７の筒部７３に粘着されることによって偏光シートが固定されるように構成しても良い。 The display device 100 according to the present embodiment is not limited to the above description. For example, in the second portion 44, an adhesive surface is formed on the outer surface 45B opposite to the inner surface 45, and the outer surface 45B is adhered to the cylindrical portion 73 of the bezel 7 so that the polarizing sheet is fixed. You may do it.
　本実施の形態に係る表示装置１００は以上の記載に限るものでない。図５は実施の形態１に係る表示装置１００の偏光シート４の変形例を示す模式図である。説明の便宜上、図５には偏光シート４の展開図を示している。 The display device 100 according to the present embodiment is not limited to the above description. FIG. 5 is a schematic diagram showing a modification of the polarizing sheet 4 of the display device 100 according to the first embodiment. For convenience of explanation, FIG. 5 shows a development view of the polarizing sheet 4.
　偏光シート４は、液晶表示パネル２の表示面２１と略等しい大きさの第１部分４３を有している。また、表示面２１において、横方向Ｄ１及び縦方向Ｄ２の両方向にて、互いに対向する第１部分４３の両端には２つの第２部分４４が第１部分４３と略垂直に交差する方向に夫々延設されている。詳しくは、横方向Ｄ１における第１部分４３の両端には第２部分４６が夫々設けられており、横方向Ｄ１と交差する縦方向Ｄ２における第１部分４３の両端には第２部分４７が夫々設けられている。 The polarizing sheet 4 has a first portion 43 having a size substantially equal to the display surface 21 of the liquid crystal display panel 2. In addition, on the display surface 21, two second portions 44 are arranged at both ends of the first portion 43 facing each other in both the horizontal direction D <b> 1 and the vertical direction D <b> 2 so as to intersect the first portion 43 substantially perpendicularly. It is extended. Specifically, second portions 46 are respectively provided at both ends of the first portion 43 in the horizontal direction D1, and second portions 47 are respectively provided at both ends of the first portion 43 in the vertical direction D2 intersecting the horizontal direction D1. Is provided.
　第１部分４３、及び、横方向Ｄ１における第１部分４３の両端に設けられた第２部分４６，４６は、上述した第２部分４４と同じであり、詳しい説明を省略する。 The first portion 43 and the second portions 46 and 46 provided at both ends of the first portion 43 in the lateral direction D1 are the same as the second portion 44 described above, and detailed description thereof is omitted.
　第２部分４７は短冊状であり、横方向Ｄ１の寸法Ｌ３が第１部分４３の長辺の寸法と同じである。しかし、これに限るものでなく、第２部分４７の横方向Ｄ１の寸法Ｌ３は第１部分４３の長辺より短くてもよく、例えば、第１部分４３の長辺の半分程度であっても良い。 The second part 47 has a strip shape, and the dimension L3 in the lateral direction D1 is the same as the dimension of the long side of the first part 43. However, the present invention is not limited to this, and the dimension L3 in the lateral direction D1 of the second portion 47 may be shorter than the long side of the first portion 43. For example, it may be about half the long side of the first portion 43. good.
　厚み方向Ｄ３における第２部分４７の寸法Ｌ４は、少なくとも、液晶表示パネル２、光学シート３及び拡散板５の厚みの和より長い。従って、厚み方向Ｄ３における第２部分４７の端部は、バックライトシャーシ９の側壁９３と対向している。 The dimension L4 of the second portion 47 in the thickness direction D3 is at least longer than the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5. Accordingly, the end portion of the second portion 47 in the thickness direction D3 faces the side wall 93 of the backlight chassis 9.
　第２部分４７は、例えば、バックライトシャーシ９の側壁９３及びベゼル７の筒部７３によって挟持されることによって固定される。また、第２部分４７は、少なくとも、バックライトシャーシ９の側壁９３と対向する内側面４９の端部に粘着面を有していてもよい。このような場合は、第２部分４７は内側面４９の端部がバックライトシャーシ９の側壁９３に粘着されて固定される。 The second portion 47 is fixed by being sandwiched between the side wall 93 of the backlight chassis 9 and the cylindrical portion 73 of the bezel 7, for example. Further, the second portion 47 may have an adhesive surface at least at the end of the inner surface 49 facing the side wall 93 of the backlight chassis 9. In such a case, the end portion of the inner side surface 49 of the second portion 47 is fixed by being adhered to the side wall 93 of the backlight chassis 9.
　すなわち、偏光シート４では、第１部分４３が液晶表示パネル２に表示面２１を覆う状態で貼り付けられ、横方向Ｄ１及び縦方向Ｄ２にて夫々対向する両端に設けられた第２部分４６，４６及び第２部分４７，４７はバックライトシャーシ９及びベゼル７によって挟持されている。 That is, in the polarizing sheet 4, the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the second portions 46 provided at both ends facing each other in the horizontal direction D 1 and the vertical direction D 2, 46 and the second portions 47 and 47 are sandwiched between the backlight chassis 9 and the bezel 7.
　本実施の形態の変形例に係る表示装置１００は、上述したように、偏光シート４の第１部分４３が液晶表示パネル２の表示面２１を覆う状態で、第２部分４６及び第２部分４７がバックライトシャーシ９及びベゼル７によって挟持されることによって固定されている。従って、例えば、フェイスダウンの状態にて液晶表示パネル２の撓みが生じた場合であっても液晶表示パネル２、光学シート３等が脱落しない。　　 As described above, the display device 100 according to the modification of the present embodiment has the second portion 46 and the second portion 47 in a state where the first portion 43 of the polarizing sheet 4 covers the display surface 21 of the liquid crystal display panel 2. Is fixed by being sandwiched between the backlight chassis 9 and the bezel 7. Therefore, for example, even when the liquid crystal display panel 2 bends in a face-down state, the liquid crystal display panel 2, the optical sheet 3 and the like do not fall off. *
　本実施の形態の変形例に係る表示装置１００は以上の記載に限るものでない。例えば、第２部分４７において内側面４９と反対側の外側面４９Ｂに粘着面を形成し、該外側面４９Ｂがベゼル７の筒部７３に粘着されるように構成しても良い。 The display device 100 according to the modification of the present embodiment is not limited to the above description. For example, an adhesive surface may be formed on the outer surface 49 </ b> B opposite to the inner surface 49 in the second portion 47, and the outer surface 49 </ b> B may be adhered to the cylindrical portion 73 of the bezel 7.
　本実施の形態の変形例に係る表示装置１００は以上の記載に限るものでない。例えば、第２部分４７の寸法Ｌ４と第２部分４６の寸法Ｌ２とが互いに異なるように構成しても良い。詳しくは、第２部分４６の寸法Ｌ２を第２部分４７の寸法Ｌ４より長く構成しても良い。これによって、第２部分４６の縦方向Ｄ２の寸法Ｌ１が第２部分４７の横方向Ｄ１の寸法Ｌ３より短く、バックライトシャーシ９の側壁９３に粘着される面積が相対的に小さいことに対応できる。 The display device 100 according to the modification of the present embodiment is not limited to the above description. For example, the dimension L4 of the second part 47 and the dimension L2 of the second part 46 may be different from each other. Specifically, the dimension L2 of the second portion 46 may be longer than the dimension L4 of the second portion 47. As a result, the dimension L1 in the vertical direction D2 of the second part 46 is shorter than the dimension L3 in the horizontal direction D1 of the second part 47, and the area adhered to the side wall 93 of the backlight chassis 9 can be relatively small. .
　以上の記載においては、第２部分４４（第２部分４６及び第２部分４７）の内側面４５の端部がバックライトシャーシ９の側壁９３に粘着されることによって、偏光シート４（第１部分４３）が固定される場合を説明した。しかし、本実施の形態に係る表示装置１００は以上の記載に限るものでない。 In the above description, the end portion of the inner surface 45 of the second portion 44 (the second portion 46 and the second portion 47) is adhered to the side wall 93 of the backlight chassis 9, whereby the polarizing sheet 4 (first portion 43) has been described. However, the display device 100 according to the present embodiment is not limited to the above description.
　第２部分４４（第２部分４６及び第２部分４７）が、バックライトシャーシ９の側壁９３及びベゼル７の筒部７３によって挟持される上述の構成に加え、第２部分４４（第２部分４６及び第２部分４７）の端部に粘着面を設けることによって、第２部分４４がバックライトシャーシ９の側壁９３に粘着されるように構成しても良い。 In addition to the above-described configuration in which the second portion 44 (second portion 46 and second portion 47) is sandwiched between the side wall 93 of the backlight chassis 9 and the cylindrical portion 73 of the bezel 7, the second portion 44 (second portion 46). The second portion 44 may be adhered to the side wall 93 of the backlight chassis 9 by providing an adhesive surface at the end of the second portion 47).
　このような構成を有することから、本実施の形態に係る表示装置１００は、取り扱いの際、液晶表示パネル２が表示窓７１を介してベゼル７から脱落する問題を確実に解決できる。 Since it has such a configuration, the display device 100 according to the present embodiment can reliably solve the problem that the liquid crystal display panel 2 falls off the bezel 7 through the display window 71 during handling.
（実施の形態２）
　図６は実施の形態２に係る表示装置１００の部分的横断面図である。 (Embodiment 2)
FIG. 6 is a partial cross-sectional view of display device 100 according to the second embodiment.
　偏光シート４は液晶表示パネル２の表示面２１に貼り付けられ、表示面２１と等しい大きさを有する第１部分４３と、第１部分４３の縁に延設された第２部分４４とを有する。 The polarizing sheet 4 is attached to the display surface 21 of the liquid crystal display panel 2 and includes a first portion 43 having a size equal to that of the display surface 21 and a second portion 44 extending from the edge of the first portion 43. .
　詳しくは、表示面２１において、横方向Ｄ１及び縦方向Ｄ２の何れかにて互いに対向する第１部分４３の両端には２つの第２部分４４が第１部分４３と略垂直に交差する方向に夫々延設されている。以下においては、横方向Ｄ１における第１部分４３の両端、すなわち、第１部分４３の短辺に第２部分４４が夫々設けられた場合を例として説明する。また、第１部分４３については、実施の形態１と同様であり、詳しい説明を省略する。 Specifically, on the display surface 21, two second portions 44 are arranged substantially perpendicularly to the first portion 43 at both ends of the first portion 43 facing each other in either the horizontal direction D 1 or the vertical direction D 2. Each is extended. Below, the case where the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example. The first portion 43 is the same as in the first embodiment, and a detailed description thereof is omitted.
　第２部分４４は短冊状を有し、縦方向Ｄ２の寸法Ｌ１が第１部分４３の短辺の寸法と同じである。また、厚み方向Ｄ３における第２部分４４の寸法Ｌ２は、少なくとも、液晶表示パネル２、光学シート３及び拡散板５の厚みの和より長い。例えば、厚み方向Ｄ３における第２部分４４の端部は、バックライトシャーシ９の側壁９３における底面９４側の端部付近に配置されている。 The second part 44 has a strip shape, and the dimension L1 in the longitudinal direction D2 is the same as the dimension of the short side of the first part 43. The dimension L2 of the second portion 44 in the thickness direction D3 is at least longer than the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5. For example, the end of the second portion 44 in the thickness direction D <b> 3 is disposed near the end of the side wall 93 of the backlight chassis 9 on the bottom 94 side.
　また、本実施の形態に係る表示装置１００は、偏光シート４を固定するための固定機構を有している。 Moreover, the display device 100 according to the present embodiment has a fixing mechanism for fixing the polarizing sheet 4.
　詳しくは、第２部分４４は前記端部に第２部分４４を厚み方向に貫通する貫通孔４８（第１貫通孔）が設けられている。更に、ベゼル７の筒部７３には、横方向Ｄ１において、第２部分４４の貫通孔４８と対向する位置に、ベゼル７の筒部７３を厚み方向に貫通する筒貫通孔７４（第３貫通孔）が設けられている。バックライトシャーシ９の側壁９３には、横方向Ｄ１において、第２部分４４の貫通孔４８と対向する位置に、バックライトシャーシ９の側壁９３を厚み方向に貫通する壁貫通孔９６（第２貫通孔）が設けられている。 Specifically, the second portion 44 is provided with a through hole 48 (first through hole) penetrating the second portion 44 in the thickness direction at the end portion. Further, the cylindrical portion 73 of the bezel 7 has a cylindrical through hole 74 (third through hole) that penetrates the cylindrical portion 73 of the bezel 7 in the thickness direction at a position facing the through hole 48 of the second portion 44 in the lateral direction D1. Hole) is provided. The side wall 93 of the backlight chassis 9 has a wall through hole 96 (second through hole) penetrating the side wall 93 of the backlight chassis 9 in the thickness direction at a position facing the through hole 48 of the second portion 44 in the lateral direction D1. Hole) is provided.
　第２部分４４の貫通孔４８と、筒部７３の筒貫通孔７４と、側壁９３の壁貫通孔９６とは、略同軸に形成されており、略等しい大きさを有する。 The through hole 48 of the second portion 44, the cylinder through hole 74 of the cylinder part 73, and the wall through hole 96 of the side wall 93 are formed substantially coaxially and have substantially the same size.
　また、本実施の形態に係る表示装置１００は、第２部分４４の貫通孔４８、筒部７３の筒貫通孔７４、及び側壁９３の壁貫通孔９６に共に挿通する雄ネジ等の固定部材Ｒを備えている。固定部材Ｒは貫通孔４８、筒貫通孔７４及び壁貫通孔９６と対応する外径を有しており、これらに挿入することによって、第２部分４４（偏光シート４）を固定する。 In addition, the display device 100 according to the present embodiment includes a fixing member R such as a male screw that is inserted through the through hole 48 of the second portion 44, the cylinder through hole 74 of the cylinder portion 73, and the wall through hole 96 of the side wall 93. It has. The fixing member R has an outer diameter corresponding to the through hole 48, the tube through hole 74, and the wall through hole 96, and the second portion 44 (polarizing sheet 4) is fixed by being inserted into these.
　すなわち、第１部分４３は、液晶表示パネル２に表示面２１を覆う状態で貼り付けられており、第２部分４４が前記固定機構によって固定されることによって偏光シート４が固定される。 That is, the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the polarizing portion 4 is fixed by fixing the second portion 44 by the fixing mechanism.
　本実施の形態に係る表示装置１００は以上の記載に限るものでない。例えば、第２部分４４が、少なくとも、内側面４５に粘着面を有し、内側面４５がバックライトシャーシ９の側壁９３に粘着されるように構成しても良い。すなわち、第２部分４４が前記固定機構に加え、内側面４５とバックライトシャーシ９の側壁９３との粘着によって固定されるようにしても良い。 The display device 100 according to the present embodiment is not limited to the above description. For example, the second portion 44 may have at least an adhesive surface on the inner side surface 45, and the inner side surface 45 may be adhered to the side wall 93 of the backlight chassis 9. That is, the second portion 44 may be fixed by adhesion between the inner surface 45 and the side wall 93 of the backlight chassis 9 in addition to the fixing mechanism.
　従って、本実施の形態に係る表示装置１００は、取り扱いの際、液晶表示パネル２が表示窓７１を介してベゼル７から脱落する問題を確実に解決できる。　　 Therefore, the display device 100 according to the present embodiment can reliably solve the problem that the liquid crystal display panel 2 falls off from the bezel 7 via the display window 71 during handling. *
　実施の形態１と同様の部分については、同一の符号を付して詳細な説明を省略する。 About the same part as Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
（実施の形態３）
　図７は実施の形態３に係る表示装置１００の部分的横断面図である。 (Embodiment 3)
FIG. 7 is a partial cross-sectional view of display device 100 according to the third embodiment.
　偏光シート４は液晶表示パネル２の表示面２１に貼り付けられ、表示面２１と等しい大きさを有する第１部分４３と、第１部分４３の縁に延設された第２部分４４とを有する。 The polarizing sheet 4 is attached to the display surface 21 of the liquid crystal display panel 2 and includes a first portion 43 having a size equal to that of the display surface 21 and a second portion 44 extending from the edge of the first portion 43. .
　詳しくは、表示面２１において、横方向Ｄ１及び縦方向Ｄ２の何れかにて互いに対向する第１部分４３の両端には２つの第２部分４４が第１部分４３と略垂直に交差する方向に表示装置１００の裏に向けて夫々延設されている。以下においては、横方向Ｄ１における第１部分４３の両端、すなわち、第１部分４３の短辺に第２部分４４が夫々設けられた場合を例として説明する。また、第１部分４３については、実施の形態１と同様であり、詳しい説明を省略する。 Specifically, on the display surface 21, two second portions 44 are arranged substantially perpendicularly to the first portion 43 at both ends of the first portion 43 facing each other in either the horizontal direction D 1 or the vertical direction D 2. Each extends toward the back of the display device 100. Below, the case where the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example. The first portion 43 is the same as in the first embodiment, and a detailed description thereof is omitted.
　第２部分４４は短冊状であり、縦方向Ｄ２の寸法Ｌ１が第１部分４３の短辺の寸法と同じである。また、厚み方向Ｄ３における第２部分４４の寸法Ｌ２は、少なくとも、液晶表示パネル２、光学シート３及び拡散板５の厚み、並びに、厚み方向Ｄ３におけるバックライトシャーシ９の側壁９３の寸法の和より長い。従って、第２部分４４の端部は、バックライトシャーシ９において底面９４と反対側の底外面９７、換言すれば、側壁９３の外側面と連なる底外面９７まで届いている。 The second part 44 has a strip shape, and the dimension L1 in the vertical direction D2 is the same as the dimension of the short side of the first part 43. The dimension L2 of the second portion 44 in the thickness direction D3 is at least the sum of the thicknesses of the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5, and the dimension of the side wall 93 of the backlight chassis 9 in the thickness direction D3. long. Therefore, the end portion of the second portion 44 reaches the bottom outer surface 97 opposite to the bottom surface 94 in the backlight chassis 9, in other words, the bottom outer surface 97 continuous with the outer surface of the side wall 93.
　第２部分４４は、少なくとも、バックライトシャーシ９の底外面９７側の端部において、底外面９７と対向する内側面４５の端部に粘着面を有している。従って、第２部分４４は内側面４５の端部がバックライトシャーシ９の底外面９７に粘着されて固定される。 The second portion 44 has an adhesive surface at the end of the inner surface 45 facing the bottom outer surface 97 at least at the end of the backlight chassis 9 on the bottom outer surface 97 side. Therefore, the end portion of the inner side surface 45 of the second portion 44 is fixed by being adhered to the bottom outer surface 97 of the backlight chassis 9.
　すなわち、第１部分４３は、液晶表示パネル２に表示面２１を覆う状態で貼り付けられており、第２部分４４の端部がバックライトシャーシ９の底外面９７に粘着されることによって偏光シート４がバックライトシャーシ９に固定されている。 That is, the first portion 43 is affixed to the liquid crystal display panel 2 so as to cover the display surface 21, and an end portion of the second portion 44 is adhered to the bottom outer surface 97 of the backlight chassis 9, thereby polarizing sheet. 4 is fixed to the backlight chassis 9.
　従って、本実施の形態に係る表示装置１００は、取り扱いの際、液晶表示パネル２が表示窓７１を介してベゼル７から脱落する問題を確実に解決できる。 Therefore, the display device 100 according to the present embodiment can reliably solve the problem that the liquid crystal display panel 2 falls off from the bezel 7 via the display window 71 during handling.
　実施の形態１と同様の部分については、同一の符号を付して詳細な説明を省略する。 About the same part as Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
（実施の形態４）
　図８は実施の形態４に係る表示装置１００の要部構成を示す横断面図である。すなわち、図８は本実施の形態に係る表示装置１００の横方向の断面図である。 (Embodiment 4)
FIG. 8 is a cross-sectional view showing the main configuration of the display device 100 according to the fourth embodiment. That is, FIG. 8 is a cross-sectional view in the horizontal direction of the display device 100 according to the present embodiment.
　図８に示しているように、本実施の形態に係る表示装置１００は、いわゆる曲面ディスプレイであり、液晶表示パネル２、光学シート３及び拡散板５が湾曲している。 As shown in FIG. 8, the display device 100 according to the present embodiment is a so-called curved display, and the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5 are curved.
　すなわち、液晶パネル１が凸となるように所定の曲率にて湾曲している。詳しくは、液晶表示パネル２、光学シート３及び拡散板５は概ね同様の曲率にて湾曲している。径方向において、最も外側には液晶表示パネル２が配置され、最も内側には拡散板５が配置されており、光学シート３は、液晶表示パネル２及び拡散板５の間に配置されている。 That is, the liquid crystal panel 1 is curved with a predetermined curvature so as to be convex. Specifically, the liquid crystal display panel 2, the optical sheet 3, and the diffusion plate 5 are curved with substantially the same curvature. In the radial direction, the liquid crystal display panel 2 is disposed on the outermost side, the diffusion plate 5 is disposed on the innermost side, and the optical sheet 3 is disposed between the liquid crystal display panel 2 and the diffusion plate 5.
　偏光シート４は液晶表示パネル２の表示面２１に貼り付けられ、表示面２１と等しい大きさを有する第１部分４３と、第１部分４３の縁に延設された第２部分４４とを有する。 The polarizing sheet 4 is attached to the display surface 21 of the liquid crystal display panel 2 and includes a first portion 43 having a size equal to that of the display surface 21 and a second portion 44 extending from the edge of the first portion 43. .
　詳しくは、表示面２１において、横方向Ｄ１及び縦方向Ｄ２（図示せず）の何れかにて互いに対向する第１部分４３の両端には２つの第２部分４４が第１部分４３と斜めに交差する方向に表示装置１００の裏に向けて夫々延設されている。以下においては、横方向Ｄ１における第１部分４３の両端、すなわち、第１部分４３の短辺に第２部分４４が夫々設けられた場合を例として説明する。また、第１部分４３については、実施の形態１と略同様であり、詳しい説明を省略する。 Specifically, on the display surface 21, two second portions 44 are obliquely formed with respect to the first portion 43 at both ends of the first portion 43 facing each other in either the horizontal direction D 1 or the vertical direction D 2 (not shown). Each of them extends toward the back of the display device 100 in the intersecting direction. Below, the case where the 2nd part 44 is each provided in the both ends of the 1st part 43 in the horizontal direction D1, ie, the short side of the 1st part 43, is demonstrated as an example. The first portion 43 is substantially the same as in the first embodiment, and a detailed description thereof is omitted.
　第２部分４４は短冊状であり、縦方向Ｄ２の寸法Ｌ１が第１部分４３の短辺の寸法と同じである。また、第２部分４４において、第１部分４３の短辺、すなわち、基部から先端までの寸法Ｌ２は、少なくとも、液晶表示パネル２及び光学シート３の厚みの和より長い。本実施の形態に係る表示装置１００において、第２部分４４の横方向Ｄ１の端部は、例えば、横方向Ｄ１における拡散板５の端部と揃っている。 The second part 44 has a strip shape, and the dimension L1 in the vertical direction D2 is the same as the dimension of the short side of the first part 43. Further, in the second portion 44, the short side of the first portion 43, that is, the dimension L2 from the base to the tip is at least longer than the sum of the thicknesses of the liquid crystal display panel 2 and the optical sheet 3. In the display device 100 according to the present embodiment, the end of the second portion 44 in the horizontal direction D1 is aligned with the end of the diffusion plate 5 in the horizontal direction D1, for example.
　更に、本実施の形態に係る表示装置１００は、クリップ１０によって、第２部分４４（偏光シート４）が拡散板５に固定されている。 Furthermore, in the display device 100 according to the present embodiment, the second portion 44 (polarizing sheet 4) is fixed to the diffusion plate 5 by the clip 10.
　クリップ１０は、横方向Ｄ１における拡散板５の端部に対応する樋形状を有しており、横方向Ｄ１における拡散板５の両端部に設けられている。クリップ１０は拡散板５の端部及び第２部分４４の端部を挟持している。すなわち、クリップ１０は拡散板５の裏面５２と偏光シート４の表面４１とを外側から挟み込んでおり、これによって、第２部分４４の端部が拡散板５とクリップ１０との間にて挟持される。 The clip 10 has a bowl shape corresponding to the end of the diffusion plate 5 in the horizontal direction D1, and is provided at both ends of the diffusion plate 5 in the horizontal direction D1. The clip 10 sandwiches the end of the diffusion plate 5 and the end of the second portion 44. That is, the clip 10 sandwiches the back surface 52 of the diffuser plate 5 and the front surface 41 of the polarizing sheet 4 from the outside, whereby the end portion of the second portion 44 is sandwiched between the diffuser plate 5 and the clip 10. The
　すなわち、第１部分４３は、液晶表示パネル２に表示面２１を覆う状態で貼り付けられ、第２部分４４がクリップ１０によって拡散板５に固定されることによって、偏光シート４が固定されている。 That is, the first portion 43 is attached to the liquid crystal display panel 2 so as to cover the display surface 21, and the second portion 44 is fixed to the diffusion plate 5 by the clip 10, whereby the polarizing sheet 4 is fixed. .
　従って、本実施の形態に係る表示装置１００は、液晶表示パネル２等が湾曲している場合であっても、取り扱いの際、液晶表示パネル２がベゼル７（図示せず）から脱落する問題を解決できる。 Therefore, the display device 100 according to the present embodiment has a problem that the liquid crystal display panel 2 falls off the bezel 7 (not shown) during handling even when the liquid crystal display panel 2 or the like is curved. can be solved.
　本実施の形態に係る表示装置１００は以上の記載に限るものでない。第２部分４４は、少なくとも、横方向Ｄ１おいて、拡散板５の表面５１の周縁部と対向する内側面４５の端部に粘着面を有する構成であってもよい。すなわち、第２部分４４がクリップ１０による固定に加え、内側面４５の端部が拡散板５の表面５１の端部に粘着されて固定されるようにしても良い。 The display device 100 according to the present embodiment is not limited to the above description. The second portion 44 may be configured to have an adhesive surface at an end portion of the inner side surface 45 facing the peripheral edge portion of the surface 51 of the diffusion plate 5 at least in the lateral direction D1. That is, the second portion 44 may be fixed by being adhered to the end portion of the surface 51 of the diffusion plate 5 at the end portion of the inner surface 45 in addition to the fixing by the clip 10.
　なお、以上においては、本実施の形態に係る表示装置１００において液晶表示パネル２等が湾曲している場合を例に挙げて説明したが、これに限るものではない。液晶表示パネル２等が扁平である場合であっても、同様の効果を得ることが出来る。 In the above description, the case where the liquid crystal display panel 2 or the like is curved in the display device 100 according to the present embodiment has been described as an example, but the present invention is not limited thereto. Even when the liquid crystal display panel 2 or the like is flat, the same effect can be obtained.
　実施の形態１と同様の部分については、同一の符号を付して詳細な説明を省略する。 About the same part as Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
　２　液晶表示パネル（表示パネル）
　４　偏光シート
　５　拡散板（光学板）
　６　光源
　７　ベゼル
　９　バックライトシャーシ
　１０　クリップ
　２１　表示面
　４３　第１部分
　４４　第２部分
　４５，４９　内側面（粘着面）
　４５Ｂ，４９Ｂ　外側面（粘着面）
　４８　貫通孔（第１貫通孔）
　５１　表面（出射面）
　７４　筒貫通孔（第３貫通孔）
　９６　壁貫通孔（第２貫通孔）
　９７　底外面
　１００　表示装置
　Ｒ　固定部材 2 Liquid crystal display panel (display panel)
4 Polarizing sheet 5 Diffuser (Optical plate)
6 Light source 7 Bezel 9 Backlight chassis 10 Clip 21 Display surface 43 First part 44 Second part 45, 49 Inner side surface (adhesive surface)
45B, 49B Outer surface (adhesive surface)
48 Through hole (first through hole)
51 surface (outgoing surface)
74 Tube through hole (3rd through hole)
96 Wall through hole (second through hole)
97 bottom outer surface 100 display device R fixing member

Claims (6)

  1. 　画像が表示される表示面を有する表示パネルと、前記表示面を覆う偏光シートとを備える表示装置において、
    　前記偏光シートは、
    　前記表示面に貼り付けられた第１部分と、
    　前記第１部分における互いに対向する両端から、該第１部分と交差する方向に延びる第２部分とを備えることを特徴とする表示装置。     In a display device comprising a display panel having a display surface on which an image is displayed and a polarizing sheet covering the display surface,
    The polarizing sheet is
    A first portion attached to the display surface;
    A display device comprising: a second portion extending in a direction crossing the first portion from opposite ends of the first portion.
  2. 　前記第１部分の前記両端間の対向方向と交差する方向にて互いに対向する前記第１部分の他の両端に前記第２部分がさらに設けられていることを特徴とする請求項１に記載の表示装置。 The said 2nd part is further provided in the other both ends of the said 1st part which mutually mutually opposes in the direction which cross | intersects the opposing direction between the said both ends of the said 1st part. Display device.
  3. 　前記表示パネルに向けて光を出射させる光学板と、
    　前記表示パネル及び前記光学板の端部を囲むベゼルと、
    　光源を収容する筐体とを備え、
    　前記第２部分は前記筐体及び前記ベゼルによって挟持されていることを特徴とする請求項１又は２に記載の表示装置。     An optical plate for emitting light toward the display panel;
    A bezel surrounding the display panel and the edge of the optical plate;
    A housing for housing the light source,
    The display device according to claim 1, wherein the second portion is sandwiched between the casing and the bezel.
  4. 　前記表示パネル側に光を出射させる光学板と、
    　前記第２部分に設けられた第１貫通孔と、
    　前記第２部分の前記第１貫通孔に対応する第２貫通孔を有し、光源を収容する筐体と、
    　前記第２部分の前記第１貫通孔に対応する第３貫通孔を有し、前記表示パネル及び前記光学板の端部を囲むベゼルと、
    　前記第１貫通孔、前記第２貫通孔及び前記第３貫通孔に挿通し、前記第２部分を固定する固定部材と
    　を備えることを特徴とする請求項１又は２に記載の表示装置。     An optical plate for emitting light to the display panel side;
    A first through hole provided in the second portion;
    A housing having a second through-hole corresponding to the first through-hole of the second portion and containing a light source;
    A bezel having a third through hole corresponding to the first through hole of the second portion and surrounding an end of the display panel and the optical plate;
    The display device according to claim 1, further comprising: a fixing member that is inserted through the first through hole, the second through hole, and the third through hole and fixes the second portion.
  5. 　底面に光源が取り付けられている筐体を備えおり、
    　前記第２部分の端部には粘着面を有し、
    　前記第２部分は前記底面と反対側の前記筐体の底外面に前記粘着面によって粘着されていることを特徴とする請求項１又は２に記載の表示装置。     It has a housing with a light source attached to the bottom,
    The end of the second part has an adhesive surface,
    3. The display device according to claim 1, wherein the second portion is adhered to the bottom outer surface of the casing opposite to the bottom surface by the adhesive surface.
  6. 　前記表示パネル側に光を出射させる光学板と
    　前記第２部分の端部を前記光学板に固定するクリップを備え、
    　前記第２部分の端部は、前記光学板及び前記クリップによって挟持されていることを特徴とする請求項１又は２に記載の表示装置。     An optical plate that emits light toward the display panel; and a clip that fixes an end of the second portion to the optical plate,
    The display device according to claim 1, wherein an end portion of the second portion is sandwiched between the optical plate and the clip.
PCT/JP2016/087629 2016-12-16 2016-12-16 Display device WO2018109940A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002341318A (en) * 2001-05-18 2002-11-27 Toshiba Corp Flat panel display device
JP2011099910A (en) * 2009-11-04 2011-05-19 Mitsubishi Electric Corp Liquid crystal display device
JP2014170216A (en) * 2013-02-28 2014-09-18 Lg Display Co Ltd Display device, and method of manufacturing display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002341318A (en) * 2001-05-18 2002-11-27 Toshiba Corp Flat panel display device
JP2011099910A (en) * 2009-11-04 2011-05-19 Mitsubishi Electric Corp Liquid crystal display device
JP2014170216A (en) * 2013-02-28 2014-09-18 Lg Display Co Ltd Display device, and method of manufacturing display device

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