WO2018120409A1 - 液晶显示装置及其边框设计 - Google Patents

液晶显示装置及其边框设计 Download PDF

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Publication number
WO2018120409A1
WO2018120409A1 PCT/CN2017/075288 CN2017075288W WO2018120409A1 WO 2018120409 A1 WO2018120409 A1 WO 2018120409A1 CN 2017075288 W CN2017075288 W CN 2017075288W WO 2018120409 A1 WO2018120409 A1 WO 2018120409A1
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Prior art keywords
color filter
layer
substrate
filter layer
liquid crystal
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PCT/CN2017/075288
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English (en)
French (fr)
Inventor
陈猷仁
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Priority to US15/537,183 priority Critical patent/US20190025622A1/en
Publication of WO2018120409A1 publication Critical patent/WO2018120409A1/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
    • G02F1/133514—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
    • G02F1/133345—Insulating layers
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • G02F1/133357—Planarisation layers
    • 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
    • G02F1/133509—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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13396—Spacers having different sizes
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136222—Colour filters incorporated in the active matrix substrate

Definitions

  • the present invention relates to a liquid crystal display panel, and more particularly to a color filter on TFT (COT) liquid crystal display panel and a frame design thereof.
  • COT color filter on TFT
  • a liquid crystal display that is advantageous in displaying a moving image has high contrast and is actively used for a TV or a monitor, and a liquid crystal display (LCD) displays an image using optical anisotropy and polarization of the liquid crystal.
  • LCD liquid crystal display
  • the LCD uses a liquid crystal panel as a main component, and the liquid crystal panel includes a first substrate and a second substrate which face each other with a liquid crystal layer therebetween.
  • the difference in transmittance is achieved by changing the alignment direction of the liquid crystal molecules according to the electric field induced in the liquid crystal panel.
  • COT color filter on TFT
  • TFT thin film transistor
  • a COT-type liquid crystal display includes: a first substrate on which a TFT, a color filter, a pixel electrode, and a first alignment layer are formed; and a second substrate that is sealed with a sealant Connected to the first substrate and the common electrode and the second alignment layer are formed on the second substrate; a liquid crystal layer between the first substrate and the second substrate; and a black column spacer, the black column The spacer is used to maintain a gap between the first substrate and the second substrate.
  • the screen process of the COT technology, the display area and the edge area are easily caused by the difference in the terrain, resulting in poor diffusion of the liquid crystal, resulting in the occurrence of vacuum bubbles at the edges during the process of forming the box. Therefore, overcoming the edge vacuum bubble is a problem that the COT process has been working hard.
  • an object of the present invention is to provide a liquid crystal display panel, and more particularly to a liquid crystal display panel of the COT type, which solves the problem that a large difference between the display area and the edge area causes poor diffusion of liquid crystal during box formation.
  • the edge of the vacuum bubble problem and at the same time can reduce the area of the circuit area of the frame area to achieve a smaller substrate.
  • a liquid crystal display panel includes: a first substrate, a second substrate having a display area and a frame area, the frame area being located at an edge of the second substrate and surrounding the display area; a color filter layer on the display area of the second substrate, the color filter layer has a first thickness; a flat layer on the frame area of the second substrate, and surround The color filter layer; the flat layer has a second thickness, and the second thickness has the same thickness as the first thickness
  • the flat layer is flush with the color filter layer, and the flat layer is connected to the color filter layer to form a same plane.
  • the flat layer includes a red color filter layer, a green color filter layer, and a blue color filter layer.
  • the flat layer is a red color filter layer, a green color filter layer, or a blue color filter layer.
  • the flat layer is a white color filter layer.
  • the flat layer is a polymer material layer.
  • a liquid crystal display device comprising: a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate; wherein the second substrate has a color filter layer, a flat layer, a display area and a frame area, the frame area is located at an edge of the second substrate and surrounding the display area; the color filter layer is located at the second substrate
  • the color filter layer has a first thickness on the display area; the flat layer is located on the frame area of the second substrate and surrounds the color filter layer; the flat layer has a a second thickness, the second thickness having the same thickness as the first thickness, such that the flat layer is flush with the color filter layer, and the flat layer is connected to the color filter layer to form a same plane.
  • Another object of the present application and solving the technical problems thereof can be further achieved by the following technical measures.
  • the flat layer includes a red color filter layer, a green color filter layer, and a blue color filter layer.
  • the flat layer is a red color filter layer, a green color filter layer, or a blue color filter layer.
  • the flat layer is a white color filter layer.
  • the flat layer is a polymer material layer.
  • the flat layer has a second thickness, and the second thickness has the same thickness as the first thickness, so that the flat layer is flush with the color filter layer, and the flat layer is
  • the color filter layers are connected to form the same plane, so that a large difference between the display area and the edge area is solved, which causes an edge vacuum bubble problem caused by poor diffusion of the liquid crystal during the formation of the box, and at the same time, the circuit area of the frame area can be reduced. Achieve smaller goals for the substrate.
  • the beneficial effects of the present application are that the same material is used by both the color filter layer and the flat layer, so that the cost can be effectively reduced, and the yield after the box is improved.
  • FIG. 1a is a schematic diagram of a screen process of an exemplary COT technology of the present application.
  • FIG. 1b is a schematic diagram of a screen process vacuum bubble generation of an exemplary COT technology of the present application.
  • FIG. 2a is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application.
  • FIG. 2b is a schematic diagram of an edge region and a display region of a liquid crystal display panel according to an embodiment of the present application.
  • 2c is a schematic diagram of a gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 2d is a schematic diagram of a flat layer covering gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 3a is a schematic view showing a flat layer of a liquid crystal display panel according to an embodiment of the present invention as a three-color filter layer.
  • 3b is a schematic view showing a flat layer of a liquid crystal display panel according to an embodiment of the present invention as a single color filter layer.
  • 3c is a schematic view showing a flat layer of a liquid crystal display panel of the embodiment of the present application as a white color filter layer.
  • 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.
  • FIG. 1a is a schematic diagram of a screen process of an exemplary COT technology of the present application.
  • FIG. 1b is a schematic diagram of a screen process vacuum bubble generation of the exemplary COT technology of the present application, and a screen process of the COT technology, which is displayed.
  • the area and the edge area are liable to cause a gap D due to the difference in the topography, resulting in poor diffusion of the liquid crystal, resulting in a problem that the vacuum bubble 100 is generated at the edge during the process of forming the box.
  • FIG. 2a-2b FIG. 2a is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application, and FIG.
  • the liquid crystal display panel of the present application includes: a first substrate, a second substrate 10 having a display area 11 and a frame area 12, the frame area 12 being located at an edge of the second substrate 10 and surrounding the display area 11 a color filter layer 20 on the display area 11 of the second substrate 10, the color filter layer 20 has a first thickness D1; a flat layer 30 on the second substrate 10 On the frame region 12, and surrounding the color filter layer 20, the flat layer 30 has a second thickness D2, and the second thickness D2 has the same thickness as the first thickness D1, so that The flat layer 30 is flush with the color filter layer 20, and the flat layer 30 is connected to the color filter layer 20 to form a same plane. Further, a support pillar 40 is located on the color filter layer 20, and a first substrate 50 is located on the support pillar 40 for supporting the first substrate 50.
  • a black matrix 60 is further included between the first substrate 50 and the support pillar 40.
  • FIG. 2c is a schematic diagram of a gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 2d is a schematic diagram of a flat layer covering gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • the gate dielectric layer 31 of the edge region defines an via hole using an additional photomask as a bridge function on the circuit signal, so that the planar layer 30 can directly cover the gate dielectric layer 31, And there is no need to make any through hole design on the flat layer 30.
  • FIG. 3a is a schematic diagram of a flat layer of a three-color filter layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat layer 30 includes a red color filter layer, a green color filter layer, and a blue color filter layer, that is, three color filter layers are simultaneously present.
  • FIG. 3b is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat layer 30 is a red color filter layer, a green color filter layer or a blue color filter layer, that is, a color filter layer that is only a single color.
  • FIG. 3c is a schematic diagram of a flat color layer of a liquid crystal display panel according to an embodiment of the present invention.
  • the flat 30 layer is a white color filter layer.
  • the flat layer 30 is a polymer material layer.
  • the flat layer has a second thickness, and the second thickness has the same thickness as the first thickness, so that the flat layer is flush with the color filter layer, and the flat layer is
  • the color filter layers are connected to form the same plane, so that the large difference between the display area and the edge area is solved, which causes the edge vacuum bubble problem caused by poor diffusion of the liquid crystal during the box formation, and the use area of the circuit design end can be effectively reduced and the box can be improved. After the yield, the substrate is smaller.
  • the beneficial effects of the present application are that the same material is used by both the color filter layer and the flat layer, so that the cost can be effectively reduced, and the yield after the box is improved.
  • the present application further includes a liquid crystal display device including: a first substrate 50; a second substrate 10; and a liquid crystal layer between the first substrate 50 and the second substrate 10, please refer to the figure. 2a to FIG. 2b, FIG. 2a is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application, and FIG. 2b is a schematic diagram of an edge region and a display area of the liquid crystal display panel according to an embodiment of the present application.
  • the second substrate has a color filter layer 20, a flat layer 30, a display area 11 and a frame area 12, and the frame area 12 is located at the edge of the second substrate 10 and surrounds the display area 11;
  • the color filter layer 20 is located on the display area 11 of the second substrate 10, the color filter layer 20 has a first thickness D1;
  • a flat layer 30 is located on the second substrate 10.
  • the flat layer 30 has a second thickness D2, and the second thickness D2 has the same thickness as the first thickness D1 to make the flat
  • the layer 30 is flush with the color filter layer 20, and the flat layer 30 is
  • the color filter layers 20 are connected to form a same plane.
  • a support pillar 40 is disposed on the color filter layer 20, and a first substrate 50 is disposed on the support pillar 40, and the support pillar 40 is used to support the first substrate. 50. Further, a black matrix 60 is further included between the first substrate 50 and the support pillar 40.
  • FIG. 2c is a schematic diagram of a gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 2d is a schematic diagram of a flat layer covering gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • the gate dielectric layer 31 of the edge region defines an via hole using an additional photomask as a bridge function on the circuit signal, so that the planar layer 30 can directly cover the gate dielectric layer 31, And no through hole design is required on the flat layer 30.
  • FIG. 3a is a schematic diagram of a flat layer of a three-color filter layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat layer 30 includes a red color filter layer, a green color filter layer, and a blue color filter layer, that is, three color filter layers are simultaneously present.
  • FIG. 3b is a schematic diagram of the flat layer of the liquid crystal display panel of the embodiment of the present application as a single color filter layer.
  • the flat layer 30 is a red color filter layer, a green color filter layer or a blue color filter layer, that is, a monochromatic color filter layer.
  • FIG. 3c is a schematic diagram of a flat color layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat 30 layer is a white color filter. Floor.
  • the flat layer 30 is a polymer material layer.
  • the beneficial effects of the present application are that the present application is to have a second thickness through the flat layer, the second thickness having the same thickness as the first thickness, so that the flat layer is flush with the color filter layer,
  • the flat layer is connected to the color filter layer to form the same plane, so that the large difference between the display area and the edge area is solved, which causes the edge vacuum bubble problem caused by poor diffusion of the liquid crystal during the box formation, and the use area of the circuit design end can be effectively reduced.
  • the beneficial effect of the present application is that the same material is used by both the color filter layer and the flat layer, so that the cost can be effectively reduced, and the yield after the box is improved.

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

一种液晶显示装置及其边框设计，包括：第二基板(10)，具有一显示区(11)及一边框区(12)，所述边框区(12)位于所述第二基板(10)边缘且环绕所述显示区(11)；滤色器层(20)，位于所述第二基板(10)的所述显示区(11)上，所述滤色器层(20)具有第一厚度；平坦层(30)，位于所述第二基板(10)的所述边框区(12)上，且环绕于所述显示区(11)，所述平坦层(30)具有第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层(30)与所述滤色器层(20)平齐，所述平坦层(30)与所述滤色器层(20)连接形成同一平面，通过所述第二厚度与所述第一厚度具有相同厚度。

Description

液晶显示装置及其边框设计 技术领域
本申请涉及一种液晶显示面板，特别是涉及一种晶体管上滤色器型(Color Filter On TFT，COT)液晶显示面板及其边框设计。
背景技术
在显示运动图像方面有利的液晶显示器具有高对比度，并且被积极地用于TV或监视器，液晶显示器(Liquid Crystal Display，LCD)利用液晶的光学各向异性和极化来显示图像。
LCD使用液晶面板作为主要部件，所述液晶面板包括彼此面对并且其间具有液晶层的第一基板和第二基板。透射率差通过根据液晶面板中引发的电场而改变液晶分子的配向方向来实现。
近来，使用形成在第一基板的薄膜晶体管(Thin Film Transistor，TFT)和滤色器的晶体管上滤色器(Color Filter On TFT，COT)型液晶显示器，由于使第一基板和第二基板的配向边距(Alignment Margin)最小化进而增加孔径比的优点而被使用。
根据现有技术的COT型液晶显示器包括：第一基板，TFT、滤色器、像素电极和第一配向层形成在所述第一基板上；第二基板，所述第二基板使用密封剂被连接至第一基板并且公共电极和第二配向层形成在所述第二基板上；液晶层，所述液晶层位于第一基板与第二基板之间；以及黑色柱状间隔体，所述黑色柱状间隔体用以维持第一基板与第二基板之间的间隙。
目前COT技术的屏幕工艺，其显示区与边缘区容易因为地形上的差异造成断差，使得液晶扩散不良，导致成盒过程中出现边缘处产生真空泡的问题。因此克服边缘真空泡是COT工艺一直努力的课题。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种液晶显示面板，特别是涉及一种COT型液晶显示面板，以解决显示区与边缘区之间大段差导致成盒时液晶扩散不良所造成的边缘真空泡问题，且同时可所缩减边框区的电路区使用面积，达到基板更小的目的。
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，一第二基板，具有一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；一滤色器层，位于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；一平坦层，位于所述第二基板的所述边框区上，且环绕于所述滤色器层；所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使 所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成有一同一平面。
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，所述平坦层包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层。
在本申请的一实施例中，所述平坦层为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层。
在本申请的一实施例中，所述平坦层为一白色滤色器层。
在本申请的一实施例中，所述平坦层为高分子材料层。
本申请的另一目的一种液晶显示装置，包括：一第一基板，一第二基板，及一液晶层，位于所述第一基板及第二基板之间；其中，所述第二基板具有滤色器层、平坦层、一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；所述滤色器层，位于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；所述平坦层，位于所述第二基板的所述边框区上，且环绕于所述滤色器层；所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面。
本申请的另一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，所述平坦层包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层。
在本申请的一实施例中，所述平坦层为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层。
在本申请的一实施例中，所述平坦层为一白色滤色器层。
在本申请的一实施例中，所述平坦层为高分子材料层。
有益效果
本申请的有益效果在于通过平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面，因此解决显示区与边缘区之间大段差导致成盒时液晶扩散不良所造成的边缘真空泡问题，且同时可所缩减边框区的电路区使用面积，达到基板更小的目的。
进一步地，本申请的有益效果在于通过滤色器层与所述平坦层均使用相同材料，因此可有效降地成本，提高成盒后良率。
附图说明
图1a是本申请范例性的COT技术的屏幕工艺示意图。
图1b是本申请范例性的COT技术的屏幕工艺真空泡产生处示意图。
图2a是本申请一实施例的液晶显示面板的平坦层示意图。
图2b是本申请一实施例的液晶显示面板的边缘区及显示区示意图。
图2c是本申请一实施例的液晶显示面板的闸极电路示意图。
图2d是本申请一实施例的液晶显示面板的平坦层覆盖闸极电路示意图。
图3a是本申请一实施例的液晶显示面板的平坦层为三色滤色器层示意图。
图3b是本申请一实施例的液晶显示面板的平坦层为单一滤色器层示意图。
图3c是本申请一实施例的液晶显示面板的平坦层为白色滤色器层示意图。
本发明的实施方式
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及其边框设计其具体实施方式、结构、特征及其功效，详细说明如后。
请参阅图1a和图1b，图1a是本申请范例性的COT技术的屏幕工艺示意图，图1b是本申请范例性的COT技术的屏幕工艺真空泡产生处示意图，COT技术的屏幕工艺，其显示区与边缘区容易因为地形上的差异造成断差D，使得液晶扩散不良，导致成盒过程中出现边缘处产生真空泡100的问题。请参阅图2a～2b，图2a是本申请一实施例的液晶显示面板的平坦层示意图，图2b是本申请一实施例的液晶显示面板的边缘区及显示区示意图。本申请液晶显示面板，包括：一第一基板，一第二基板10，具有一显示区11及一边框区12，所述边框区12位于所述第二基板10边缘且环绕所述显示区11；一滤色器层20，位于所述第二基板10的所述显示区11上，所述滤色器层20具有一第一厚度D1；一平坦层30，位于所述第二基板10的所述边框区12上，且环绕于所述滤色器层20，所述平坦层30具有一第二厚度D2，所述第二厚度D2与所述第一厚度D1具有相同厚度，使所述平坦层30与所述滤色器层20平齐，所述平坦层30与所述滤色器层20连接形成一同一平面， 进一步地，一支撑柱40位于所述滤色器层20上，以及一第一基板50位于支撑柱40上，支撑柱40用以支撑第一基板50。
更进一步地，位于所述第一基板50与所述支撑柱40之间更包括黑色矩阵60。
请进一步参阅图2c～2d，图2c是本申请一实施例的液晶显示面板的闸极电路示意图。图2d是本申请一实施例的液晶显示面板的平坦层覆盖闸极电路示意图。在本申请的一实施例中，边缘区的闸极介电层31使用额外的光掩模版定义通孔以作为电路信号上面的桥接作用，因此平坦层30可直接覆盖闸极介电层31，且在平坦层30上不需不进行任何通孔设计。
接着，请参阅图3a，图3a是本申请一实施例的液晶显示面板的平坦层为三色滤色器层示意图。在本申请的一实施例中，所述平坦层30包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层，也就是三色的滤色器层同时存在。
另外，请参阅图3b，图3b是本申请一实施例的液晶显示面板的平坦层为单一滤色器层示意图。在本申请的一实施例中，所述平坦层30为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层，也就是仅为单色的滤色器层。
进一步参阅图3c，图3c是本申请一实施例的液晶显示面板的平坦层为白色滤色器层示意图，在本申请的一实施例中，所述平坦30层为一白色滤色器层。
在本申请的一实施例中，所述平坦层30为高分子材料层。
本申请的有益效果在于通过平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面，因此解决显示区与边缘区之间大段差导致成盒时液晶扩散不良所造成的边缘真空泡问题，且可有效缩减电路设计端的使用面积以及提高成盒后良率，达到基板更小的目的。
进一步地，本申请的有益效果在于通过滤色器层与所述平坦层均使用相同材料，因此可有效降地成本，提高成盒后良率。
进一步地，本申请更包括一种液晶显示装置，包括：第一基板50；一第二基板10，及一液晶层，位于所述第一基板50及第二基板10之间，请再参阅图2a～图2b，图2a是本申请一实施例的液晶显示面板的平坦层示意图，图2b是本申请一实施例的液晶显示面板的边缘区及显示区示意图。其中，所述第二基板具有滤色器层20、平坦层30、一显示区11及一边框区12，所述边框区12位于所述第二基板10边缘且环绕所述显示区11；一滤色器层20，是位于所述第二基板10的所述显示区11上，所述滤色器层20具有一第一厚度D1；一平坦层30，是位于所述第二基板10的所述边框区12上，且环绕于所述滤色器层20，所述平坦层30具有一第二厚度D2，所述第二厚度D2与所述第一厚度D1具有相同厚度使所述平坦层30与所述滤色器层20平齐，所述平坦层30与所 述滤色器层20连接形成一同一平面，进一步地，一支撑柱40位于所述滤色器层20上，以及一第一基板50位于支撑柱40上，支撑柱40用以支撑第一基板50，更进一步地，位于所述第一基板50与所述支撑柱40之间更包括黑色矩阵60。
请再进一步参阅图2c和图2d，图2c是本申请一实施例的液晶显示面板的闸极电路示意图。图2d是本申请一实施例的液晶显示面板的平坦层覆盖闸极电路示意图。在本申请的一实施例中，边缘区的闸极介电层31使用额外的光掩模版定义通孔以作为电路信号上面的桥接作用，因此平坦层30可直接覆盖闸极介电层31，且在平坦层30上不需进行任何通孔设计。
接着，请再参阅图3a，图3a是本申请一实施例的液晶显示面板的平坦层为三色滤色器层示意图。在本申请的一实施例中，所述平坦层30包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层，也就是三色的滤色器层同时存在。
另外，请再参阅图3b，图3b是本申请一实施例的液晶显示面板的平坦层为单一滤色器层示意图。在本申请的一实施例中，所述平坦层30为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层，也就是仅单色的滤色器层。
请再进一步参阅图3c，图3c是本申请一实施例的液晶显示面板的平坦层为白色滤色器层示意图，在本申请的一实施例中，所述平坦30层为一白色滤色器层。
在本申请的一实施例中，所述平坦层30为高分子材料层。
本申请的有益效果是本申请在于通过平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面，因此解决显示区与边缘区之间大段差导致成盒时液晶扩散不良所造成的边缘真空泡问题，且可有效缩减电路设计端的使用面积以及提高成盒后良率，达到基板更小的目的。
进一步地，本申请的有益效果是在于通过滤色器层与所述平坦层均使用相同材料，因此可有效降地成本，提高成盒后良率。
“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；
    一第二基板，具有一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；
    一滤色器层，位于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；
    一平坦层，位于所述第二基板的所述边框区上，且环绕于所述滤色器层；
    所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面。
  2. 如权利要求1所述的液晶显示面板，其中所述平坦层包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层。
  3. 如权利要求1所述的液晶显示面板，其中所述平坦层为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层。
  4. 如权利要求1所述的液晶显示面板，其中所述平坦层为一白色滤色器层。
  5. 如权利要求1所述的液晶显示面板，其中所述平坦层为高分子材料层。
  6. 如权利要求1所述的液晶显示面板，更包括一支撑柱位于所述滤色器层上，以及所述第一基板位于所述支撑柱上，所述支撑柱用以支撑所述第一基板。
  7. 如权利要求6所述的液晶显示面板，所述第一基板与所述支撑柱之间更包括一黑色矩阵。
  8. 如权利要求1所述的液晶显示面板，其中所述平坦层无通孔。
  9. 如权利要求1所述的液晶显示面板，其中所述滤色器层与所述平坦层使用相同材料。
  10. 一种液晶显示面板，包括：
    一第一基板；
    一第二基板，具有一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；
    一滤色器层，位于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；
    一平坦层，位于所述第二基板的所述边框区上，且环绕于所述滤色器层，所述平坦层无通孔；
    一支撑柱位于所述滤色器层上，以及所述第一基板位于所述支撑柱上，所述支撑柱用以支撑所述第一基板；
    所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面；
    所述平坦层为红色、绿色及蓝色三色的滤色器层同时存在或是单色的滤色器层或白色滤色器层；
    所述第一基板与所述支撑柱之间更包括一黑色矩阵。
  11. 一种液晶显示装置，包括：
    第一基板；
    第二基板；及
    液晶层，位于所述第一基板及第二基板之间；
    其中，所述第二基板具有滤色器层、平坦层、一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；所述滤色器层是位于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；所述平坦层是位于所述第二基板的所述边框区上，且环绕于所述显示区；
    其中，所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面；
    所述液晶显示装置更包括一闸极介电层，位于所述第二基板，所述平坦层覆盖所述闸极介电层。
  12. 如权利要求11所述的液晶显示装置，其中所述平坦层包括一红色滤色器层、一绿色滤色器层和一蓝色滤色器层。
  13. 如权利要求11所述的液晶显示装置，其中所述平坦层为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层。
  14. 如权利要求11所述的液晶显示装置，其中所述平坦层为一白色滤色器层，所述平坦层为高分子材料层。
  15. 如权利要求11所述的液晶显示装置，更包括一支撑柱位于所述滤色器层上，以及所述第一基板位于所述支撑柱上，所述支撑柱用以支撑所述第一基板，所述第一基板与所述支撑柱之间更包括一黑色矩阵。
  16. 如权利要求11所述的液晶显示装置，其中所述平坦层无通孔。
  17. 如权利要求11所述的液晶显示装置，其中所述滤色器层与所述平坦层使用相同材料。
PCT/CN2017/075288 2016-12-30 2017-03-01 液晶显示装置及其边框设计 WO2018120409A1 (zh)

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