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WO2018153005A1 - 液晶显示装置 - Google Patents

液晶显示装置 Download PDF

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Publication number
WO2018153005A1
WO2018153005A1 PCT/CN2017/092164 CN2017092164W WO2018153005A1 WO 2018153005 A1 WO2018153005 A1 WO 2018153005A1 CN 2017092164 W CN2017092164 W CN 2017092164W WO 2018153005 A1 WO2018153005 A1 WO 2018153005A1
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WO
WIPO (PCT)
Prior art keywords
substrate
liquid crystal
crystal display
edge end
color filter
Prior art date
Application number
PCT/CN2017/092164
Other languages
English (en)
French (fr)
Inventor
陈猷仁
Original Assignee
惠科股份有限公司
重庆惠科金渝光电科技有限公司
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.)
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Application filed by 惠科股份有限公司, 重庆惠科金渝光电科技有限公司 filed Critical 惠科股份有限公司
Priority to US15/555,297 priority Critical patent/US20190049778A1/en
Publication of WO2018153005A1 publication Critical patent/WO2018153005A1/zh

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    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
    • H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
    • H10D86/411—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs characterised by materials, geometry or structure of the substrates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
    • H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
    • H10D86/60—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
    • 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
    • G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Definitions

  • the present application relates to a frameless design method, and more particularly to a liquid crystal display device.
  • the TFT-LCD is an abbreviation for a thin film transistor liquid crystal display.
  • the TFT-LCD is a backlight type liquid crystal display, which is composed of a liquid crystal display panel and a backlight module.
  • the liquid crystal display panel includes a first substrate, a color filter substrate (CF, Color Filter), and a second substrate-thin film transistor.
  • a substrate TFT, Thin Film Transistor
  • LC liquid crystal sandwiched between the color filter substrate and the thin film transistor substrate.
  • the LCD displays an image by rearranging liquid crystal molecules in a liquid crystal layer when a voltage is applied to electrodes on the array substrate and the color filter substrate. Since the LCD itself cannot emit light, a backlight module is required.
  • the backlight module may include a light source such as a light emitting diode, a fluorescent lamp, or the like, a light guide plate, a prism sheet, a diffusion sheet, a protective sheet, and the like.
  • the TFT-LCD starts to face the frameless design.
  • the edge leakage problem of the edge must be overcome. Otherwise, the peripheral leakage phenomenon will occur.
  • the current solution is in the borderless product.
  • a side seal is applied to the edge of the open cell of the Open Cell to absorb light and block light.
  • this method requires material and process steps, which is very inconvenient.
  • an object of the present invention is to provide a frameless design method, and more particularly to a liquid crystal display device for solving the problem of side leakage of the edge of a frameless liquid crystal display, using a color filter outside the glass.
  • a black photoresist is convexly disposed to effectively destroy and absorb the refracted light of the end face of the substrate array. This method only needs to set the cutting position of the color filter substrate during the substrate glass cutting process, and no additional materials and processes are needed.
  • a liquid crystal display panel includes: a first substrate having an outer surface; a second substrate disposed opposite the first substrate; a liquid crystal layer disposed on the first substrate and the substrate Between the second substrates; and a light shielding unit disposed around the outer surface of the first substrate; wherein an edge end glass size of the first substrate is larger than an edge end glass size of the second substrate.
  • the light shielding unit when the light shielding unit is disposed around an outer surface of the first substrate, the light shielding unit is located between the first substrate and the second substrate, and extends to the Outside the second substrate.
  • the shading unit is a black material.
  • the black material is a black photoresist.
  • the first substrate is a color filter substrate.
  • the second substrate is a thin film transistor substrate.
  • the edge end glass of the first substrate is exposed.
  • the edge end glass size of the first substrate minus the edge end glass size of the second substrate is positive.
  • a liquid crystal display device comprising a backlight module, and a liquid crystal display panel comprising: a first substrate having an outer surface; a second substrate disposed opposite the first substrate; a liquid crystal layer, And disposed between the first substrate and the second substrate; and a light shielding unit disposed around the outer surface of the first substrate; wherein the edge of the first substrate has a larger glass size than the second The glass edge of the edge of the substrate.
  • the light shielding unit when the light shielding unit is disposed around an outer surface of the first substrate, the light shielding unit is located between the first substrate and the second substrate, and extends to the Outside the second substrate.
  • the shading unit is a black material.
  • the black material is a black photoresist.
  • the first substrate is a color filter substrate.
  • the second substrate is a thin film transistor substrate.
  • the edge end glass of the first substrate is exposed.
  • the edge end glass size of the first substrate minus the edge end glass size of the second substrate is positive.
  • Still another object of the present application is a liquid crystal display device comprising: a backlight module; a liquid crystal display panel comprising: a thin film transistor substrate; a color filter substrate disposed opposite to the thin film transistor substrate, the color filter The substrate has an outer surface, the edge end glass of the color filter substrate is exposed, the edge end glass size of the color filter substrate is larger than the edge end glass size of the thin film transistor substrate, and the color filter The edge end glass size of the substrate minus the edge end glass size of the thin film transistor substrate is positive; a liquid crystal layer disposed between the color filter substrate and the thin film transistor substrate; and a light shielding unit,
  • the light shielding unit is made of black photoresist or black ink, and the light shielding unit is formed around the outer surface of the color filter substrate by an exposure and development process or a printing process, and is located on the color filter substrate.
  • the light shielding unit extends from the outer surface of the color filter substrate to the thin film crystal between the thin film transistor substrate and the thin film transistor substrate An outer tube glass substrate
  • the present invention is used to solve the problem of side leakage of the edge of the borderless liquid crystal display, and the color filter glass is convex and a black photoresist is directly replaced by a black rubber on the edge of the traditional edge, and the light leakage of the end surface is absorbed, and the process is simpler. .
  • FIG. 1 is a schematic structural view of an exemplary conventional liquid crystal display backlight module.
  • 2a is a schematic diagram of an exemplary display panel outer frame design.
  • FIG. 2b is a schematic diagram of a frameless design of a display panel according to an embodiment of the present application.
  • Figure 3a is a schematic illustration of an exemplary frame design.
  • Figure 3b is a schematic illustration of an exemplary frameless side seal design.
  • FIG. 4 is a schematic view of a panel array having a black material on the surface of a color filter glass substrate according to an embodiment of the present application.
  • the word “comprising” is to be understood to include the component, but does not exclude any other component.
  • “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
  • a liquid crystal display is a liquid crystal that applies an electric field between two glass substrates to display numbers or images.
  • the liquid crystal is composed of a substance between a liquid and a solid. Since the liquid crystal display cannot emit light by itself, a backlight module is required to provide light.
  • the picture is formed by controlling the light transmission of the liquid crystal display panel.
  • the liquid crystal is uniformly disposed in the liquid crystal display panel.
  • the backlight module of the conventional liquid crystal display includes a light source 20 , a light guide plate 102 , a reflective sheet 103 , a diffusion sheet 104 , a prism sheet 105 , and a protective sheet 106 .
  • the light source 20 is used to emit light into the liquid crystal display.
  • the light guide plate 102 is disposed under the liquid crystal display panel 107 and adjacent to the side of the light source 20.
  • the light guide plate 102 is configured to convert the point light generated by the light source 20 into a planar light, and project the planar light onto the liquid. Crystal display panel 107.
  • the reflective sheet 103 is disposed under the light guide plate 102.
  • the reflection sheet 103 is for reflecting the light emitted from the light source 20 to the liquid crystal display panel 107 before the reflection sheet 103.
  • the diffusion sheet 104 is disposed on the light guide plate 102 for homogenizing the light passing through the light guide plate 102. As the light passes through the diffuser 104, the light is diffused in horizontal and vertical directions. At this time, the brightness of the light will decrease rapidly.
  • the prism sheet 105 serves to refract and concentrate light to thereby increase the brightness.
  • the two prism sheets 105 are arranged in a mutually perpendicular manner.
  • the protective sheet 106 is disposed above the prism sheet 105. In the case where two prism sheets 105 are arranged perpendicularly to each other, the protective sheet 106 can avoid scratching of the prism sheet 105 and avoid the occurrence of a Moire Effect.
  • a backlight module of a conventional liquid crystal display includes the above components.
  • the prism sheet 105 when the prism sheet 105 is normally mounted, a plurality of unit prisms will be arranged in a regular direction on a film of a transparent material.
  • the prism sheet 105 is for refracting light that has passed through the light guide plate 102 and is diffused by the diffusion plate 104.
  • the width of the light transmission and refraction is small, the light in the area of transmission and refraction will appear brighter. Conversely, if the width of the light transmission and refraction is large, the light in the area of transmission and refraction will appear darker.
  • liquid crystal displays have been developed toward large-sized panels. Therefore, how to maintain the density of the light emitted by the backlight module above a predetermined level, and when the liquid crystal display is to highlight the integrated feeling of the display screen, start to face the frameless design, and when the frame is cancelled, the edge leakage problem of the edge must be It is overcome, otherwise there will be leakage phenomenon in the periphery, and when the four-sided frameless product will display the panel array side up, the surrounding metal will reflect light and the visual sensory will affect the quality of the panel, so how to homogenize the seen The light that solves the edge leakage problem at the edge will be an important reference factor for the large size panel.
  • the liquid crystal display device of the present application may include a backlight module and a liquid crystal display panel.
  • the liquid crystal display panel may include a thin film transistor substrate, a color filter substrate, and a liquid crystal layer formed between the two substrates.
  • the liquid crystal display panel of the present application may be a curved display panel, and the liquid crystal display device of the present application may also be a curved display device.
  • FIG. 2a is a schematic diagram of an outer frame design of an exemplary display panel
  • FIG. 2b is a schematic diagram of a frameless design of the display panel according to an embodiment of the present application.
  • the thin film transistor liquid crystal display starts to face the frameless design in order to highlight the integrated feeling of the display screen, and when the frame 110 is cancelled, the side leakage problem of the edge must be overcome, otherwise peripheral leakage may occur.
  • the current solution is to apply a layer of black rubber 120 on the edge of the open unit edge of the frameless product to absorb light and block the light.
  • this method requires material and process steps, which is very inconvenient.
  • a liquid crystal display device 300 includes: a liquid crystal display panel, including: a first substrate 310 having an outer surface; a second substrate 320, and the first substrate 310 is oppositely disposed; a backlight module 330; and a frame 110 disposed around the outer surface of the liquid crystal display panel, Light absorption prevents light from escaping, but this method requires a lot of material and process steps, which is very inconvenient.
  • FIG. 3b is a schematic illustration of an exemplary frameless side seal design.
  • a liquid crystal display device 301 includes: a first substrate 310 having an outer surface; and a second substrate 320 disposed opposite the first substrate 310; The backlight module 330; and a layer of black rubber 120 coated on the edge end surface of an open unit absorbs light and blocks light from passing through.
  • this method requires additional material and process technology to increase production costs and is not conducive to industrial production.
  • a liquid crystal display panel includes: a first substrate 310 having an outer surface; and a second substrate 320 disposed opposite to the first substrate 310; A light shielding unit 340 is disposed around the outer surface of the first substrate 310; wherein the edge end glass size D1 of the first substrate 310 is greater than the edge end glass size D2 of the second substrate 320.
  • the color filter substrate 310 is convexly exposed to the glass and a black photoresist 340 is disposed to effectively destroy and absorb the refracted light of the end surface of the thin film transistor substrate 320.
  • This method only needs to be in the glass cutting process of the color filter substrate 310.
  • the color filter substrate 310 can be set in the cutting position without any additional materials and processes.
  • the liquid crystal display panel may be a thin film transistor liquid crystal display panel, a curved surface panel, or other backlight type liquid crystal display panels.
  • the light shielding unit 340 when the light shielding unit 340 is disposed around the outer surface of the first substrate 310, the light shielding unit 340 is located between the first substrate 310 and the second substrate 320, and extends Outside the second substrate 320.
  • the shading unit 340 is made of a black material.
  • the black material is a black photoresist.
  • the first substrate 310 is a color filter substrate.
  • the second substrate 320 is a thin film transistor substrate.
  • a liquid crystal layer 315 is further disposed between the first substrate 310 and the second substrate 320.
  • the edge end glass of the first substrate 310 is exposed.
  • the edge end glass size D1 of the first substrate 310 minus the edge end glass size D2 of the second substrate 320 is d (d is greater than 0).
  • the manner in which the light shielding unit 340 is formed includes an exposure and development process or a printing process.
  • the manner in which the first substrate 310 and the second substrate 320 are formed includes photoresist coating, exposure, development, and photomask process formation.
  • the light shielding unit 340 is made of a black material, and the light shielding unit 340 can be made of an insulating black ink, which is disposed in the frame area, so that the protection cover has a black border and no border.
  • the protection cover has a black border and no border.
  • a liquid crystal display device 302 includes: a backlight module 330; a liquid crystal display panel comprising: a first substrate 310 having an outer surface; a second a substrate 320 disposed opposite to the first substrate 310; and a light shielding unit 340 disposed around the outer surface of the first substrate 310; wherein an edge end glass dimension D1 of the first substrate 310 is greater than the second
  • the edge end of the substrate 320 has a glass size D2.
  • the color filter substrate 310 is convexly exposed to the glass and a black photoresist 340 is disposed to effectively destroy and absorb the refracted light of the end surface of the thin film transistor substrate 320. This method only needs to be in the glass cutting process of the color filter substrate 310.
  • the color filter substrate 310 can be set in the cutting position without any additional materials and processes.
  • the liquid crystal display panel may be a thin film transistor liquid crystal display panel, a curved surface panel, or other backlight type liquid crystal display panels.
  • the light shielding unit 340 when the light shielding unit 340 is disposed around the outer surface of the first substrate 310, the light shielding unit 340 is located between the first substrate 310 and the second substrate 320, and extends Outside the second substrate 320.
  • the shading unit 340 is made of a black material.
  • the black material is a black photoresist.
  • the first substrate 310 is a color filter substrate.
  • the second substrate 320 is a thin film transistor substrate.
  • a liquid crystal layer 315 is further disposed between the first substrate 310 and the second substrate 320.
  • the edge end glass of the first substrate 310 is exposed.
  • the edge end glass size D1 of the first substrate 310 minus the edge end glass size D2 of the second substrate 320 is d (d is greater than 0).
  • the manner in which the light shielding unit 340 is formed includes an exposure and development process or a printing process.
  • the manner in which the first substrate 310 and the second substrate 320 are formed includes photoresist coating, exposure, development, and photomask process formation.
  • the light shielding unit 340 is made of a black material, and the light shielding unit 340 can be made of an insulating black ink, which is disposed in the frame area, so that the protection cover has a black border and no border.
  • the protection cover has a black border and no border.
  • a thin film transistor liquid crystal display the edge end surface glass is exposed, and the edge end glass size D1 of the first substrate (color filter substrate) 310 is subtracted from the first
  • the edge end glass size D2 of the two substrates (thin film transistor substrate) 320 is d (d is greater than 0).
  • the edge end surface glass is exposed, and the edge end glass size D1 of the first substrate (color filter substrate) 310 is subtracted from the second substrate (thin film transistor substrate) 320.
  • Edge end glass size D2 value d (d is greater than 0), and the outer surface of the first substrate (color filter substrate) 310 has a black photoresist 340 around it.
  • the edge end surface glass is exposed, and the edge end glass size D1 of the first substrate (color filter substrate) 310 is subtracted from the second substrate (thin film transistor substrate) 320.
  • the edge end glass size D2 value is d (d is greater than 0), and the outer surface of the first substrate (color filter substrate) 310 has a black photoresist 340 extending to the thin film transistor substrate 320. Outside the glass.
  • the backlight module 330 further includes a light guide plate, and a light source disposed on one side surface or a back surface of the light guide plate.
  • the light source is, for example, a light emitting diode or a fluorescent lamp.
  • a liquid crystal display panel includes: a color filter substrate 310 having an outer surface; a thin film transistor substrate 320 disposed opposite the color filter substrate 310; and a liquid crystal layer 315 disposed Between the color filter substrate 310 and the thin film transistor substrate 320; and a light shielding unit 340 disposed around the outer surface of the color filter substrate 310; wherein the color filter substrate 310 The edge end glass is exposed, the edge end glass size of the color filter substrate 310 is larger than the edge end glass size of the thin film transistor substrate 320, and the edge end glass size of the color filter substrate 310 is subtracted from the The edge end glass size value of the thin film transistor substrate 320 is positive.
  • the light shielding unit 340 is made of black photoresist or black ink, and the light shielding unit 340 is formed around the outer surface of the color filter substrate 310 by an exposure and development process or a printing process, and is located at the color filter. Between the light sheet substrate 310 and the thin film transistor substrate 320, the light shielding unit 340 extends from the outer surface of the color filter substrate 310 to the outside of the glass of the thin film transistor substrate 320.
  • the present invention is used to solve the problem of side leakage of the edge of the borderless liquid crystal display, and the color filter glass is convex and a black photoresist is directly replaced by a black rubber on the edge of the traditional edge, and the light leakage of the end surface is absorbed, and the process is simpler. .

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

Abstract

一种液晶显示装置，包括：一第一基板(310)，具有一外表面；一第二基板(320)，与第一基板(310)相对设置；一液晶层(315)，设置于第一基板(310)及第二基板(320)之间；以及一遮光单元(340)，设置于第一基板(310)的外表面周围；其中第一基板(310)的边缘端玻璃尺寸大于第二基板(320)的边缘端玻璃尺寸。

Description

液晶显示装置 技术领域
本申请涉及一种无边框的设计方法，特别是涉及一种液晶显示装置。
背景技术
TFT-LCD是薄膜晶体管液晶显示器的简称。TFT-LCD为背光型液晶显示器，其是由液晶显示面板及背光模块(Backlight Module)所组成，液晶显示面板包括：第一基板-彩膜基板(CF，Color Filter)、第二基板-薄膜晶体管基板(TFT，Thin Film Transistor)、夹于彩膜基板与薄膜晶体管基板之间的液晶(LC，Liquid Crystal)。LCD通过在阵列基底和滤色基底上的电极上施加电压时在液晶层中重新排列液晶分子来显示图像。由于LCD自身不能发光，因而需要背光模块。背光模块可包括诸如发光二极管、荧光灯等等的光源、导光板、棱镜片、扩散片、保护片等等。
TFT-LCD为了突显出显示画面的一体感，开始朝向无边框设计，而当边框取消之后，边缘的侧漏光问题就必须被克服，否则会出现外围漏光的现象，目前解决方式是在无边框产品的开放单元(Open Cell)边缘端面上涂上一圈黑胶(Side Seal)，将光线吸收阻绝光线透出，但此一方式需要增加材料与制程工序，非常不方便。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种无边框的设计方法，特别是涉及一种液晶显示装置，用以解决无边框液晶显示器边缘的侧漏光问题，利用彩色滤光片玻璃外凸并设置一黑色光阻，将基板阵列端面的折射光有效破坏并吸收，此方式只需在基板玻璃切割过程中设定彩色滤光片基板切割位置即可，完全无需额外材料与制程。
本申请的目的及解决其技术问题是采用以下技术方案来实现的。依据本申请提出的一种液晶显示面板，包括：一第一基板，具有一外表面；一第二基板，与所述第一基板相对设置；一液晶层，设置于所述第一基板及所述第二基板之间；以及一遮光单元，设置于所述第一基板的外表面周围；其中所述第一基板的边缘端玻璃尺寸大于所述第二基板的边缘端玻璃尺寸。
本申请的目的及解决其技术问题还可采用以下技术措施进一步实现。
在本申请的一实施例中，当所述遮光单元设置于所述第一基板的外表面周围时，所述遮光单元位于所述第一基板与所述第二基板之间，且延伸至所述第二基板之外。
在本申请的一实施例中，所述遮光单元为一黑色材质。
在本申请的一实施例中，所述黑色材质为一黑色光阻。
在本申请的一实施例中，所述第一基板为一彩色滤光片基板。
在本申请的一实施例中，所述第二基板为一薄膜晶体管基板。
在本申请的一实施例中，所述第一基板的边缘端玻璃外露。
在本申请的一实施例中，所述第一基板的边缘端玻璃尺寸减去所述第二基板的边缘端玻璃尺寸值为正。
本申请的另一目的一种液晶显示装置，包括背光模块，液晶显示面板，包括：一第一基板，具有一外表面；一第二基板，与所述第一基板相对设置；一液晶层，设置于所述第一基板及所述第二基板之间；以及，一遮光单元，设置于所述第一基板的外表面周围；其中所述第一基板的边缘端玻璃尺寸大于所述第二基板的边缘端玻璃尺寸。
本申请的目的及解决其技术问题还可采用以下技术措施进一步实现。
在本申请的一实施例中，当所述遮光单元设置于所述第一基板的外表面周围时，所述遮光单元位于所述第一基板与所述第二基板之间，且延伸至所述第二基板之外。
在本申请的一实施例中，所述遮光单元为一黑色材质。
在本申请的一实施例中，所述黑色材质为一黑色光阻。
在本申请的一实施例中，所述第一基板为一彩色滤光片基板。
在本申请的一实施例中，所述第二基板为一薄膜晶体管基板。
在本申请的一实施例中，所述第一基板的边缘端玻璃外露。
在本申请的一实施例中，所述第一基板的边缘端玻璃尺寸减去所述第二基板的边缘端玻璃尺寸值为正。
本申请的又一目的一种液晶显示装置，包括：背光模块；液晶显示面板，包括：一薄膜晶体管基板；一彩色滤光片基板，与所述薄膜晶体管基板相对设置，所述彩色滤光片基板具有一外表面，所述彩色滤光片基板的边缘端玻璃外露，所述彩色滤光片基板的边缘端玻璃尺寸大于所述薄膜晶体管基板的边缘端玻璃尺寸，及所述彩色滤光片基板的边缘端玻璃尺寸减去所述薄膜晶体管基板的边缘端玻璃尺寸值为正；一液晶层，设置于所述彩色滤光片基板及所述薄膜晶体管基板之间；以及，一遮光单元，所述遮光单元为黑色光阻或黑色油墨制成，所述遮光单元通过曝光与显影制程或印刷制程而形成于所述彩色滤光片基板的外表面周围，并位于所述彩色滤光片基板与所述薄膜晶体管基板之间，所述遮光单元自所述彩色滤光片基板的外表面周围延伸至所述薄膜晶体管基板的玻璃外。
本申请用以解决无边框液晶显示器边缘的侧漏光问题，利用彩色滤光片玻璃外凸并设置一黑色光阻直接取代传统边缘端面上涂上一圈黑胶，吸收端面的漏光，制程更简便。
附图说明
图1是范例性传统液晶显示器背光模块的结构示意图。
图2a是范例性显示面板外框设计示意图。
图2b是本申请一实施例的显示面板无边框设计示意图。
图3a是范例性具有边框设计示意图。
图3b是范例性的无边框侧密封设计示意图。
图4是本申请一实施例于彩色滤光片玻璃基板表面上具有黑色材质的面板阵列示意图。
具体实施方式
以下各实施例的说明是参考附加的图式，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。
附图和说明被认为在本质上是示出性的，而不是限制性的。在图中，结构相似的单元是以相同标号表示。另外，为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
在附图中，为了清晰起见，夸大了层、膜、面板、区域等的厚度。在附图中，为了理解和便于描述，夸大了一些层和区域的厚度。将理解的是，当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时，所述组件可以直接在所述另一组件上，或者也可以存在中间组件。
另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述组件，但是不排除任何其它组件。此外，在说明书中，“在......上”意指位于目标组件上方或者下方，而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定发明目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本申请提出的一种液晶显示装置，其具体实施方式、结构、特征及其功效，详细说明如后。
液晶显示器(Liquid Crystal Display，LCD)为施加一电场于两片玻璃基板之间的液晶，以显示数字或影像。其中液晶由介于液体与固体之间的物质所组成。由于液晶显示器无法自行发光，因此需要一背光模块来提供光线。画面则通过控制液晶显示面板的光线传送来形成。其中液晶均匀地设置于液晶显示面板中。
传统液晶显示器的背光模块(如图1所示)包括一光源20、一导光板102、一反射片103、一扩散片104、一棱镜片105及一保护片106。首先，光源20用以射出光线至液晶显示器中。目前已有多种不同的光源可应用于液晶显示器中。导光板102设置于液晶显示面板107之下，并邻近于光源20一侧。导光板102用以将光源20所产生的点状光线转换为面状光线，并将此面状光线投射于液 晶显示面板107。
反射片103则设置于导光板102之下。反射片103用以将光源20所射出光线反射至反射片103之前的液晶显示面板107。扩散片104设置于导光板102之上，用以均匀化穿越导光板102的光线。当光线穿越扩散片104时，光线被扩散于水平与垂直方向。此时光线亮度将快速降低。就这一点而言，棱镜片105用以折射并集中光线，以藉此提高亮度。一般两个棱镜片105以相互垂直的方式排列。
保护片106设置于棱镜片105之上。在使用两个相互垂直排列棱镜片105的情况下，保护片106可以避免棱镜片105的刮伤，并避免水波纹现象(Moire Effect)的发生。传统液晶显示器的背光模块包括上述组件。
一般而言，当棱镜片105正常地装设时，数个单元棱柱将以规律的方向排列于一透明材料膜上。棱镜片105用以折射穿越导光板102并被扩散板104扩散的光线。一般而言，若光线传递与折射的宽度较小，则在传递与折射的区域内的光线将呈现的较亮。相反地，若光线传递与折射的宽度较大，则在传递与折射的区域内的光线将呈现的较暗。
近年来，液晶显示器朝向大尺寸面板发展。因此，如何维持背光模块所射出光线的密度在一预定水平之上，以及当液晶显示器为了突显出显示画面的一体感，开始朝向无边框设计，而当边框取消之后，边缘的侧漏光问题就必须被克服，否则会出现外围漏光的现象，且当四边无边框的产品会将面板阵列侧朝上显示时，周边的金属会反光造成视觉感官不佳影响面板的质量，所以如何均匀化所看到的光线又能解决边缘的侧漏光问题将是大尺寸面板的一重要参考因素。
本申请的液晶显示装置可包括背光模块及液晶显示面板。液晶显示面板可包括薄膜晶体管基板、彩色滤光片基板与形成于两基板之间的液晶层。
在一实施例中，本申请的液晶显示面板可为曲面型显示面板，且本申请的液晶显示装置亦可为曲面型显示装置。
图2a为范例性显示面板外框设计示意图及图2b为本申请一实施例的显示面板无边框设计示意图。请参照图2a及图2b，在薄膜晶体管液晶显示器为了突显出显示画面的一体感，开始朝向无边框设计，而当边框110取消之后，边缘的侧漏光问题就必须被克服，否则会出现外围漏光的现象，目前解决方式为在无边框产品的开放单元边缘端面上涂上一层黑胶120，将光线吸收阻绝光线透出，但此一方式需要增加材料与制程工序，非常不方便。
图3a为范例性具有边框设计示意图。请参照图3a，在一实施例中，一种液晶显示装置300，包括：一液晶显示面板，包括：一第一基板310，具有一外表面；一第二基板320，与所述第一基板310相对设置；一背光模块330；以及一边框110，设置于所述液晶显示面板的外表面周围，将 光线吸收阻绝光线透出，但此一方式需要增加材料与制程工序，非常不方便。
图3b为范例性的无边框侧密封设计示意图。请参照图3b，在传统的无边框产品中，一种液晶显示装置301，包括：一第一基板310，具有一外表面；一第二基板320，与所述第一基板310相对设置；一背光模块330；以及在一开放单元边缘端面上涂上一层黑胶120，将光线吸收且阻绝光线透出。但此方法需额外增加材料与制程工艺，提高制作成本，不利于工业生产。
图4为本申请一实施例于彩色滤光片玻璃基板表面上具有黑色材质的面板阵列示意图。请参照图4，在本申请的一实施例中，一种液晶显示面板，包括：一第一基板310，具有一外表面；一第二基板320，与所述第一基板310相对设置；以及一遮光单元340，设置于所述第一基板310的外表面周围；其中所述第一基板310的边缘端玻璃尺寸D1大于所述第二基板320的边缘端玻璃尺寸D2。本申请利用彩色滤光片基板310玻璃外凸并设置一黑色光阻340，将薄膜晶体管基板320端面的折射光有效破坏并吸收，此方式只需在所述彩色滤光片基板310玻璃切割过程中设定彩色滤光片基板310切割位置即可，完全无需额外材料与制程。
在一实施例中，所述液晶显示面板可以为薄膜晶体管液晶显示面板、曲面型面板，也可以为其他背光型液晶显示面板。
在一实施例中，当所述遮光单元340设置于所述第一基板310的外表面周围时，所述遮光单元340位于所述第一基板310与所述第二基板320之间，且延伸至所述第二基板320之外。
在一实施例中，所述遮光单元340为一黑色材质。
在一实施例中，所述黑色材质为一黑色光阻。
在一实施例中，所述第一基板310为一彩色滤光片基板。
在一实施例中，所述第二基板320为一薄膜晶体管基板。
在一实施例中，还包括一液晶层315，设置于所述第一基板310与所述第二基板320之间。
在一实施例中，所述第一基板310的边缘端玻璃外露。
在一实施例中，所述第一基板310的边缘端玻璃尺寸D1减去所述第二基板320的边缘端玻璃尺寸D2值为d(d大于0)。
在一实施例中，形成所述遮光单元340的方式包括曝光与显影制程或印刷制程。
在一实施例中，形成第一基板310和第二基板320的方式包括光阻涂布、曝光、显影及光罩制程形成。
在一实施例中，所述遮光单元340为一黑色材质，且所述遮光单元340可由绝缘的黑色油墨制成，其布设在边框区内，使保护盖板呈现出黑色的边框，在无边框设计时，其营造一边框的设计感，进而达到美化外观的目的。
请继续参照图4，在本申请一实施例中，一种液晶显示装置302，包括：一背光模块330；一种液晶显示面板，包括：一第一基板310，具有一外表面；一第二基板320，与所述第一基板310相对设置；以及一遮光单元340，设置于所述第一基板310的外表面周围；其中所述第一基板310的边缘端玻璃尺寸D1大于所述第二基板320的边缘端玻璃尺寸D2。本申请利用彩色滤光片基板310玻璃外凸并设置一黑色光阻340，将薄膜晶体管基板320端面的折射光有效破坏并吸收，此方式只需在所述彩色滤光片基板310玻璃切割过程中设定彩色滤光片基板310切割位置即可，完全无需额外材料与制程。
在一实施例中，所述液晶显示面板可以为薄膜晶体管液晶显示面板、曲面型面板，也可以为其他背光型液晶显示面板。
在一实施例中，当所述遮光单元340设置于所述第一基板310的外表面周围时，所述遮光单元340位于所述第一基板310与所述第二基板320之间，且延伸至所述第二基板320之外。
在一实施例中，所述遮光单元340为一黑色材质。
在一实施例中，所述黑色材质为一黑色光阻。
在一实施例中，所述第一基板310为一彩色滤光片基板。
在一实施例中，所述第二基板320为一薄膜晶体管基板。
在一实施例中，还包括一液晶层315，设置于所述第一基板310与所述第二基板320之间。
在一实施例中，所述第一基板310的边缘端玻璃外露。
在一实施例中，所述第一基板310的边缘端玻璃尺寸D1减去所述第二基板320的边缘端玻璃尺寸D2值为d(d大于0)。
在一实施例中，形成所述遮光单元340的方式包括曝光与显影制程或印刷制程。
在一实施例中，形成第一基板310和第二基板320的方式包括光阻涂布、曝光、显影及光罩制程形成。
在一实施例中，所述遮光单元340为一黑色材质，且所述遮光单元340可由绝缘的黑色油墨制成，其布设在边框区内，使保护盖板呈现出黑色的边框，在无边框设计时，其营造一边框的设计感，进而达到美化外观的目的。
请继续参照图4，具体地，在一实施例中，一薄膜晶体管液晶显示器，所述边缘端面玻璃外露，且其第一基板(彩色滤光片基板)310的边缘端玻璃尺寸D1减去第二基板(薄膜晶体管基板)320的边缘端玻璃尺寸D2值为d(d大于0)。
在一实施例中，一薄膜晶体管液晶显示器，所述边缘端面玻璃外露，且其第一基板(彩色滤光片基板)310的边缘端玻璃尺寸D1减去第二基板(薄膜晶体管基板)320的边缘端玻璃尺寸D2值为 d(d大于0)，而第一基板(彩色滤光片基板)310的外表面周围具有黑色光阻340。
在一实施例中，一薄膜晶体管液晶显示器，所述边缘端面玻璃外露，且其第一基板(彩色滤光片基板)310的边缘端玻璃尺寸D1减去第二基板(薄膜晶体管基板)320的边缘端玻璃尺寸D2值为d(d大于0)，而第一基板(彩色滤光片基板)310的外表面周围具有黑色光阻340，所述黑色光阻340延伸至所述薄膜晶体管基板320玻璃之外。
在本申请的一实施例中，所述背光模块330更包括一导光板；以及一光源，设置于所述导光板的一侧表面或一背面。所述光源例如：发光二极管、荧光灯。
在一实施例中，一液晶显示面板，包括：一彩色滤光片基板310，具有一外表面；一薄膜晶体管基板320，与所述彩色滤光片基板310相对设置；一液晶层315，设置于所述彩色滤光片基板310及所述薄膜晶体管基板之间320；以及一遮光单元340，设置于所述彩色滤光片基板310的外表面周围；其中，所述彩色滤光片基板310的边缘端玻璃外露，所述彩色滤光片基板310的边缘端玻璃尺寸大于所述薄膜晶体管基板320的边缘端玻璃尺寸，及所述彩色滤光片基板310的边缘端玻璃尺寸减去所述薄膜晶体管基板320的边缘端玻璃尺寸值为正。所述遮光单元340为黑色光阻或黑色油墨制成，所述遮光单元340通过曝光与显影制程或印刷制程而形成于所述彩色滤光片基板310的外表面周围，并位于所述彩色滤光片基板310与所述薄膜晶体管基板320之间，所述遮光单元340自所述彩色滤光片基板310的外表面周围延伸至所述薄膜晶体管基板320的玻璃外。
本申请用以解决无边框液晶显示器边缘的侧漏光问题，利用彩色滤光片玻璃外凸并设置一黑色光阻直接取代传统边缘端面上涂上一圈黑胶，吸收端面的漏光，制程更简便。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例；但它亦可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词，除非其前后文意显示出其它意思。
以上所述，仅是本申请的较佳实施例而已，并非对本申请作任何形式上的限制，虽然本申请已以较佳实施例揭露如上，然而并非用以限定本申请，任何熟悉本专业的技术人员，在不脱离本申请技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本申请技术方案的内容，依据本申请的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本申请技术方案的范围内。

Claims (17)

  1. 一种液晶显示面板，包括：
    一第一基板，具有一外表面；
    一第二基板，与所述第一基板相对设置；
    一液晶层，设置于所述第一基板及所述第二基板之间；以及
    一遮光单元，设置于所述第一基板的外表面周围；其中所述第一基板的边缘端玻璃尺寸大于所述第二基板的边缘端玻璃尺寸。
  2. 如权利要求1所述的液晶显示面板，其中，当所述遮光单元设置于所述第一基板的外表面周围时，所述遮光单元位于所述第一基板与所述第二基板之间，且延伸至所述第二基板之外。
  3. 如权利要求1所述的液晶显示面板，其中，所述遮光单元为一黑色材质。
  4. 如权利要求3所述的液晶显示面板，其中，所述黑色材质为一黑色光阻。
  5. 如权利要求1所述的液晶显示面板，其中，所述第一基板为一彩色滤光片基板。
  6. 如权利要求1所述的液晶显示面板，其中，所述第二基板为一薄膜晶体管基板。
  7. 如权利要求1所述的液晶显示面板，其中，所述第一基板的边缘端玻璃外露。
  8. 如权利要求1所述的液晶显示面板，其中，所述第一基板的边缘端玻璃尺寸减去所述第二基板的边缘端玻璃尺寸值为正。
  9. 一种液晶显示装置，包括：
    背光模块；
    液晶显示面板，包括：
    一第一基板，具有一外表面；
    一第二基板，与所述第一基板相对设置；
    一液晶层，设置于所述第一基板及所述第二基板之间；以及
    一遮光单元，设置于所述第一基板的外表面周围；其中所述第一基板的边缘端玻璃尺寸大于所述第二基板的边缘端玻璃尺寸。
  10. 如权利要求9所述的液晶显示装置，其中，当所述遮光单元设置于所述第一基板的外表面周围时，所述遮光单元位于所述第一基板与所述第二基板之间，且延伸至所述第二基板之外。
  11. 如权利要求9所述的液晶显示装置，其中，所述遮光单元为一黑色材质。
  12. 如权利要求11所述的液晶显示装置，其中，所述黑色材质为一黑色光阻。
  13. 如权利要求9所述的液晶显示装置，其中，所述第一基板为一彩色滤光片基板。
  14. 如权利要求9所述的液晶显示装置，其中，所述第二基板为一薄膜晶体管基板。
  15. 如权利要求9所述的液晶显示装置，其中，所述第一基板的边缘端玻璃外露。
  16. 如权利要求9所述的液晶显示装置，其中，所述第一基板的边缘端玻璃尺寸减去所述第二基板的边缘端玻璃尺寸值为正。
  17. 一种液晶显示装置，包括：
    背光模块；
    液晶显示面板，包括：
    一薄膜晶体管基板；
    一彩色滤光片基板，与所述薄膜晶体管基板相对设置，所述彩色滤光片基板具有一外表面，所述彩色滤光片基板的边缘端玻璃外露，所述彩色滤光片基板的边缘端玻璃尺寸大于所述薄膜晶体管基板的边缘端玻璃尺寸，及所述彩色滤光片基板的边缘端玻璃尺寸减去所述薄膜晶体管基板的边缘端玻璃尺寸值为正；
    一液晶层，设置于所述彩色滤光片基板及所述薄膜晶体管基板之间；以及
    一遮光单元，所述遮光单元为黑色光阻或黑色油墨制成，所述遮光单元通过曝光与显影制程或印刷制程而形成于所述彩色滤光片基板的外表面周围，并位于所述彩色滤光片基板与所述薄膜晶体管基板之间，所述遮光单元自所述彩色滤光片基板的外表面周围延伸至所述薄膜晶体管基板的玻璃外。
PCT/CN2017/092164 2017-02-24 2017-07-07 液晶显示装置 WO2018153005A1 (zh)

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