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WO2018109940A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage 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
English (en)
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/fr
Publication of WO2018109940A1 publication Critical patent/WO2018109940A1/fr

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

Abstract

La présente invention concerne un dispositif d'affichage (100) comprenant un écran d'affichage à cristaux liquides (2) ayant une surface d'affichage (21) sur laquelle une image est affichée et une feuille polarisante (4) recouvrant la surface d'affichage (21). La feuille polarisante (4) comporte une première partie (43) fixée à la surface d'affichage (21) de l'écran d'affichage à cristaux liquides (2) et une seconde partie (44) s'étendant dans une direction orthogonale à la première partie (43) à partir des deux extrémités en regard l'une de l'autre de la première partie (43). La seconde partie (44) est par exemple fixée à un châssis de rétroéclairage (9) contenant une source de lumière (6).
PCT/JP2016/087629 2016-12-16 2016-12-16 Dispositif d'affichage WO2018109940A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/087629 WO2018109940A1 (fr) 2016-12-16 2016-12-16 Dispositif d'affichage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/087629 WO2018109940A1 (fr) 2016-12-16 2016-12-16 Dispositif d'affichage

Publications (1)

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WO2018109940A1 true WO2018109940A1 (fr) 2018-06-21

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WO (1) WO2018109940A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002341318A (ja) * 2001-05-18 2002-11-27 Toshiba Corp 平面表示装置
JP2011099910A (ja) * 2009-11-04 2011-05-19 Mitsubishi Electric Corp 液晶表示装置
JP2014170216A (ja) * 2013-02-28 2014-09-18 Lg Display Co Ltd ディスプレイ装置およびディスプレイ装置の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002341318A (ja) * 2001-05-18 2002-11-27 Toshiba Corp 平面表示装置
JP2011099910A (ja) * 2009-11-04 2011-05-19 Mitsubishi Electric Corp 液晶表示装置
JP2014170216A (ja) * 2013-02-28 2014-09-18 Lg Display Co Ltd ディスプレイ装置およびディスプレイ装置の製造方法

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