WO2020181604A1 - 彩膜基板、柔性液晶显示面板及制备方法 - Google Patents

彩膜基板、柔性液晶显示面板及制备方法 Download PDF

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Publication number
WO2020181604A1
WO2020181604A1 PCT/CN2019/082011 CN2019082011W WO2020181604A1 WO 2020181604 A1 WO2020181604 A1 WO 2020181604A1 CN 2019082011 W CN2019082011 W CN 2019082011W WO 2020181604 A1 WO2020181604 A1 WO 2020181604A1
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WO
WIPO (PCT)
Prior art keywords
black matrix
height
matrix wall
liquid crystal
color filter
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Application number
PCT/CN2019/082011
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English (en)
French (fr)
Inventor
黄建龙
唐维
Original Assignee
武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/472,913 priority Critical patent/US10845638B2/en
Publication of WO2020181604A1 publication Critical patent/WO2020181604A1/zh

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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
    • 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
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel
    • 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
    • G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
    • 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
    • G02F1/1339—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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13398—Spacer materials; Spacer properties

Definitions

  • This application relates to the field of display manufacturing processes, in particular to a color film substrate, a flexible liquid crystal display panel and a preparation method.
  • the existing flexible liquid crystal display panel has the problem that the liquid crystal molecules are severely shifted due to the force, which needs to be solved urgently.
  • the present application provides a flexible liquid crystal display panel to solve the technical problems of uneven liquid crystal cell gap and serious color shift in the existing flexible liquid crystal display panel after bending.
  • This application provides a color film substrate, including:
  • the photoresist layer is located on the flexible base substrate;
  • An alignment layer located on the side of the photoresist layer away from the flexible substrate;
  • the black matrix wall is located on the side of the alignment layer away from the photoresist layer, and there is at least one place where the height of the black matrix wall is the threshold height, and the three-dimensional structure composed of the black matrix walls forms a receiving cavity.
  • the heights of the black matrix walls are all the same.
  • the height of the black matrix wall is lower than the height of the remaining parts of the black matrix wall.
  • the height of the black matrix wall around at least one pixel unit is higher than the height of the black matrix wall between sub-pixels in the pixel unit.
  • the height of the black matrix wall around all pixel units is the same, and the height of the black matrix wall between all sub-pixels in all the pixel units is also the same.
  • the height of the black matrix wall around all pixel units is the same, the height of the black matrix wall between sub-pixels in each pixel unit is also the same, and there are at least two pixel units, The height of the black matrix wall between the sub-pixels is different.
  • the heights of the black matrix walls around all pixel units are the same, there is at least one pixel unit, and the heights of the black matrix walls between sub-pixels in the pixel units are different.
  • the height of the black matrix wall between two fixed sub-pixels is the same.
  • the color filter substrate provided by the present application there are at least two pixel units, and the height of the black matrix wall between the two fixed sub-pixels is different.
  • the black matrix wall around at least one pixel unit, and there is at least one height that is different from other heights.
  • An embodiment of the present application also provides a flexible liquid crystal display panel, including an array substrate, a color filter substrate, and liquid crystals accommodated in a black matrix wall accommodating cavity of the color filter substrate, the color filter substrate includes:
  • the photoresist layer is located on the flexible base substrate;
  • An alignment layer located on the side of the photoresist layer away from the flexible substrate;
  • the black matrix wall is located on the side of the alignment layer away from the photoresist layer, and there is at least one place where the height of the black matrix wall is the threshold height, and the three-dimensional structure composed of the black matrix walls forms a receiving cavity.
  • the heights of the black matrix walls are all the same.
  • the height of the black matrix wall is lower than the height of the remaining part of the black matrix wall.
  • the height of the black matrix wall around at least one pixel unit is higher than the height of the black matrix wall between sub-pixels in the pixel unit.
  • the height of the black matrix wall around all pixel units is the same, and the height of the black matrix wall between all sub-pixels in all the pixel units is also the same.
  • the height of the black matrix wall around all pixel units is the same, and the height of the black matrix wall between sub-pixels in each pixel unit is also the same, and there are at least two pixel units , The heights of the black matrix walls between the sub-pixels are different.
  • the height of the black matrix wall around all pixel units is the same, there is at least one pixel unit, and the height of the black matrix wall between sub-pixels in the pixel unit is different.
  • the height of the black matrix wall between two fixed sub-pixels is the same.
  • the flexible liquid crystal display panel provided by the present application, there are at least two pixel units, and the height of the black matrix wall between the two fixed sub-pixels is different.
  • This application also provides a method for preparing a color filter substrate, which includes:
  • a black matrix wall is prepared on the side of the alignment layer away from the photoresist layer.
  • the present application provides a color filter substrate, a flexible liquid crystal display panel and a preparation method.
  • the color filter substrate includes a flexible substrate, a photoresist layer, an alignment layer, and a black matrix wall; the color filter substrate is provided with a liquid crystal containing cavity
  • the three-dimensional black matrix wall fixes the liquid crystal in the containing cavity, prevents the random flow and deviation of liquid crystal molecules, and avoids the uneven cell gap caused by the deviation of the liquid crystal, which solves the problem of liquid crystal in the existing flexible liquid crystal display panel.
  • the problem of severe deviation of the force of the molecule is a method for a color filter substrate, a flexible liquid crystal display panel and a preparation method.
  • the color filter substrate includes a flexible substrate, a photoresist layer, an alignment layer, and a black matrix wall; the color filter substrate is provided with a liquid crystal containing cavity
  • the three-dimensional black matrix wall fixes the liquid crystal in the containing cavity, prevents the random flow and deviation of liquid crystal molecules, and avoids the uneven cell gap caused
  • FIG. 1 is a schematic diagram of a 3D structure of a color filter substrate provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the first structure of a color filter substrate provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a second structure of a color filter substrate provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a third structure of a color filter substrate provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a fourth structure of a color filter substrate provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of a fifth structure of a color filter substrate provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a sixth structure of a color filter substrate provided by an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a flexible liquid crystal display panel provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of preparation of a color filter substrate provided by an embodiment of the application.
  • FIG. 10 is a manufacturing flow chart of a flexible liquid crystal display panel provided by an embodiment of the application.
  • the present application provides a color film substrate to solve this problem.
  • the color filter substrate 1 provided in the present application includes:
  • the flexible base substrate 11 in an embodiment, the material of the flexible base substrate is a high molecular polymer
  • the photoresist layer 12 is located on the flexible base substrate 11, and the photoresist layer 12 includes a first sub-pixel 121, a second sub-pixel 122, and a third sub-pixel 123 repeatedly arranged in the same layer;
  • the alignment layer 13 is located on the side of the photoresist layer 12 away from the flexible substrate 11;
  • the black matrix wall 14 is located on the side of the alignment layer 13 away from the photoresist layer 12, and there is at least one place where the height of the black matrix wall is the threshold height, and the black matrix wall forms a three-dimensional honeycomb structure , And formed with a containing cavity for containing liquid crystal.
  • the present application provides a color filter substrate, including a flexible substrate, a photoresist layer, an alignment layer, and a black matrix wall; the color filter substrate is provided with a three-dimensional black matrix wall with a liquid crystal containing cavity to fix the liquid crystal in the containing cavity It prevents the random flow and deviation of liquid crystal molecules, avoids the uneven cell gap caused by the deviation of liquid crystals, and solves the problem of the existing flexible liquid crystal display panel that the liquid crystal molecules are severely shifted due to the force.
  • the ability of the black matrix wall to fix the liquid crystal, the supporting effect on the array substrate and the color filter substrate in the liquid crystal display panel, and the blocking effect on the lateral refraction of light are all related to the arrangement of the black matrix wall.
  • the better the blocking effect for the lateral refraction of light the more effective it is to solve the problem of serious displacement of liquid crystal molecules due to force in the existing flexible liquid crystal display panel and the problem of color shift.
  • each position of the black matrix wall is set to the threshold height, the stronger the three-dimensional structure of the black matrix wall, and the better its supporting effect when subjected to external pressure; the more limited space the black matrix wall is set up Smaller, the denser the limited space is set, the smaller the range of liquid crystal movement and offset, the better the fixation effect of liquid crystal molecules under pressure, that is, the less likely the liquid crystal molecules will be severely shifted by force;
  • FIGS. 2 to 7 correspond to six specific embodiments of the color filter substrate of this application.
  • the heights of the black matrix walls 14 are all the same, and the height is a threshold height, forming a three-dimensional honeycomb structure in a three-dimensional space.
  • the black matrix wall 14 corresponding to this embodiment plays the main supporting role in the display panel, and the three-dimensional honeycomb structure gives the black matrix wall 14 a stronger geometric structure, that is, this implementation
  • the black matrix wall 14 corresponding to the example is a black matrix wall structure with extremely strong supporting capability, and has an excellent effect of supporting the array substrate and the color filter substrate when subjected to external pressure.
  • the height of the black matrix wall 14 is set to the threshold height, and the accommodating cavities are confined one by one in a space corresponding to the area of a sub-pixel, and the range of liquid crystal movement and offset is fixed in the accommodating cavity in a small space
  • the fixing effect of the liquid crystal molecules is excellent, and the possibility of the liquid crystal molecules shifting is extremely small, thereby solving the problem of uneven cell gaps in the liquid crystal display panel.
  • the height of the black matrix wall 14 is all set to a threshold height, which excellently blocks the lateral refraction of light, thereby being able to extremely effectively reduce the problem of color shift of the liquid crystal display panel.
  • the heights of the black matrix walls 14 around all pixel units are the same, and the height is the threshold height; the height between all sub-pixels in all pixel units The height of the black matrix 14 is also the same, and the height is lower than the threshold height.
  • the black matrix wall 14 around all pixel units plays a main supporting role in the liquid crystal display panel, and the black matrix 14 between all sub-pixels in all pixel units plays an auxiliary supporting role in the liquid crystal display panel.
  • the honeycomb structure is still a solid geometric structure. When subjected to external pressure, the black matrix wall 14 acting as a main support and the black matrix wall 14 acting as an auxiliary support can double support the array substrate and the color The effect of the film substrate.
  • the range of liquid crystal flow in the upper part of the same pixel unit increases to the area of one pixel unit, but the liquid crystal in most of the lower space is arbitrarily limited to the area of one sub-pixel.
  • the The black matrix 14 described in the embodiment can still fix the liquid crystal molecules well and prevent them from shifting in a larger range, thereby solving the problem of uneven cell gaps in the liquid crystal display panel.
  • the height of the black matrix wall 14 around all pixel units is set to the threshold height, which perfectly blocks the lateral refraction of light.
  • the height of the black matrix 14 between all sub-pixels in the pixel unit is set to be lower than the threshold height, which can also effectively block the lateral refraction of part of the light, thereby effectively reducing the problem of the color shift of the liquid crystal display panel.
  • the height of the black matrix wall 14 around all pixel units is the same, and the height is the threshold height; the black matrix wall 14 between the sub-pixels in each pixel unit The height of the matrix wall 14 is also the same, the height is lower than the threshold height; there are at least two pixel units, and the height of the black matrix wall 14 between the sub-pixels is different.
  • the heights of the black matrix walls 14 around all pixel units are the same, and the height is the threshold height; there is at least one pixel unit, and the sub-pixels in the pixel unit The heights of the black matrix walls 14 between pixels are different; in all the pixel units, the heights of the black matrix walls 14 between two fixed sub-pixels are the same.
  • the heights of the black matrix walls 14 around all pixel units are the same, and the height is the threshold height; there is at least one pixel unit, and the sub The heights of the black matrix walls 14 between the pixels are different; there are at least two pixel units, and the heights of the black matrix walls 14 between the two fixed sub-pixels are different.
  • FIG. 7 there is the black matrix wall 14 around at least one pixel unit, and the height of at least one place is different from the height of other places.
  • the present application also provides a flexible liquid crystal display panel, including a color filter substrate 1, an array substrate 2, and liquid crystal 3 accommodated in a black matrix wall accommodating cavity of the color filter substrate.
  • Substrate 1 includes:
  • the flexible base substrate 11 in an embodiment, the material of the flexible base substrate is a high molecular polymer
  • the photoresist layer 12 is located on the flexible base substrate 11, and the photoresist layer 12 includes a first sub-pixel 121, a second sub-pixel 122, and a third sub-pixel 123 repeatedly arranged in the same layer;
  • the alignment layer 13 is located on the side of the photoresist layer 12 away from the flexible substrate 11;
  • the black matrix wall 14 is located on the side of the alignment layer 13 away from the photoresist layer 12, and there is at least one place where the height of the black matrix wall is the threshold height, and the black matrix wall forms a three-dimensional honeycomb structure , And formed with a containing cavity for containing liquid crystal.
  • the present application provides a flexible liquid crystal display panel, including a color filter substrate, an array substrate, and liquid crystals accommodated in a black matrix wall accommodating cavity of the color filter substrate.
  • the color filter substrate includes a flexible substrate, a photoresist layer, Alignment layer and black matrix wall; by arranging a three-dimensional black matrix wall with a liquid crystal accommodating cavity on the color film substrate, the liquid crystal is fixed in the accommodating cavity to prevent the random flow and deviation of liquid crystal molecules and avoid the deviation due to liquid crystal
  • the resulting uneven cell gap solves the problem of the existing flexible liquid crystal display panel that the liquid crystal molecules are severely shifted by force.
  • the present application provides a method for preparing a color filter substrate, including:
  • a photoresist layer 12 is prepared on the flexible base substrate 11, and the preparation of the photoresist layer includes preparing the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 arranged in the same layer. The effect is shown in FIG. 9 As shown in (b);
  • An alignment layer 13 is prepared on the side of the photoresist layer 12 away from the flexible base substrate 11, the effect of which is shown in FIG. 9(c);
  • a black matrix wall 14 is prepared on the side of the alignment layer 13 away from the photoresist layer 12, the effect of which is shown in FIG. 9(d).
  • the present application also provides a method for preparing a flexible liquid crystal display panel, which includes preparing a color filter substrate 1, preparing an array substrate 2, and aligning the color filter substrate and the array substrate.
  • the specific steps of preparing the color filter substrate include:
  • the black matrix wall is fabricated after the pixel layer is prepared, which prevents the pixel photoresist from forming "horns" on the black matrix to cause uneven surfaces, thereby affecting the position of the subsequent support structure.
  • the color filter substrate manufacturing process simplifies the preparation process of the existing color filter substrate.
  • the specific steps of preparing the array substrate include:
  • the specific steps of assembling the color filter substrate and the array substrate include:
  • the prepared color filter substrate and the prepared array substrate are laminated.
  • the color filter substrate includes a flexible substrate, a photoresist layer, an alignment layer, and a black matrix wall; the color filter substrate is provided with a liquid crystal containing cavity
  • the three-dimensional black matrix wall fixes the liquid crystal in the accommodating cavity, prevents the random flow and deviation of liquid crystal molecules, and avoids the uneven cell gap caused by the deviation of the liquid crystal, which solves the problem of liquid crystal in the existing flexible liquid crystal display panel.
  • the problem of severe deviation of the force of the molecule is a problem of severe deviation of the force of the molecule.

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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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)

Abstract

一种彩膜基板（1）、柔性液晶显示面板及制备方法，彩膜基板（1）包括柔性衬底基板（11）、光阻层（12）、配向层（13）以及黑矩阵墙（14）；通过在彩膜基板（1）上设置具有液晶容纳腔的立体黑矩阵墙（14），将液晶固定于容纳腔内，避免了因液晶的偏移造成的晶胞间隙不均，解决了柔性液晶显示面板存在液晶分子受力发生严重偏移的问题。

Description

彩膜基板、柔性液晶显示面板及制备方法 技术领域
本申请涉及显示器制程领域，尤其涉及彩膜基板、柔性液晶显示面板及制备方法。
 背景技术
近年来，柔性显示技术由于其低功耗、可弯曲、柔韧性佳等优点受到广泛关注。
然而，柔性液晶显示面板一直存在弯折时，液晶分子受力发生严重偏移，从而造成液晶晶胞间隙不均，进而影响柔性液晶显示面板显示效果的问题。
即，现有柔性液晶显示面板存在液晶分子受力发生严重偏移的问题，急需解决。
 技术问题
本申请提供一种柔性液晶显示面板，以解决现有柔性液晶显示面板存在弯折后液晶晶胞间隙不均和色偏严重的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种彩膜基板，包括:
柔性衬底基板；
光阻层，位于所述柔性衬底基板上；
配向层，位于所述光阻层远离所述柔性衬底的一侧；以及
黑矩阵墙，位于所述配向层远离所述光阻层的一侧，且存在至少一处所述黑矩阵墙的高度为阈值高度，所述黑矩阵墙组成的立体结构形成有容纳腔。
在本申请提供的彩膜基板中，所述黑矩阵墙的高度均相同。
在本申请提供的彩膜基板中，存在至少一处所述黑矩阵墙的高度低于其余部分所述黑矩阵墙的高度。
在本申请提供的彩膜基板中，存在至少一个像素单元周围的所述黑矩阵墙的高度，高于该像素单元内子像素间所述黑矩阵墙的高度。
在本申请提供的彩膜基板中，所有像素单元周围的所述黑矩阵墙的高度均相同，且所有像素单元内所有子像素间的所述黑矩阵墙的高度也都相同。
在本申请提供的彩膜基板中，所有像素单元周围的所述黑矩阵墙的高度均相同，每个像素单元内子像素间的所述黑矩阵墙的高度也相同，存在至少两个像素单元，其子像素间的所述黑矩阵墙的高度不相同。
在本申请提供的彩膜基板中，所有像素单元周围的所述黑矩阵墙的高度均相同，存在至少一个像素单元，所述像素单元内子像素间的所述黑矩阵墙的高度不相同。
在本申请提供的彩膜基板中，所述所有像素单元内，两个固定子像素间的所述黑矩阵墙的高度均相同。
在本申请提供的彩膜基板中，存在至少两个所述像素单元内，两个固定子像素间的所述黑矩阵墙的高度不相同。在本申请提供的彩膜基板中，存在至少一个像素单元周围的所述黑矩阵墙，存在至少一处高度与别处的高度不相同。
本申请实施例还提供一种柔性液晶显示面板，包括阵列基板、彩膜基板、以及容纳于所述彩膜基板的黑矩阵墙容纳腔内的液晶，所述彩膜基板包括:
柔性衬底基板；
光阻层，位于所述柔性衬底基板上；
配向层，位于所述光阻层远离所述柔性衬底的一侧；以及
黑矩阵墙，位于所述配向层远离所述光阻层的一侧，且存在至少一处所述黑矩阵墙的高度为阈值高度，所述黑矩阵墙组成的立体结构形成有容纳腔。
在本申请提供的柔性液晶显示面板中，所述黑矩阵墙的高度均相同。
在本申请提供的柔性液晶显示面板中，存在至少一处所述黑矩阵墙的高度低于其余部分所述黑矩阵墙的高度。
在本申请提供的柔性液晶显示面板中，存在至少一个像素单元周围的所述黑矩阵墙的高度，高于该像素单元内子像素间所述黑矩阵墙的高度。
在本申请提供的柔性液晶显示面板中，所有像素单元周围的所述黑矩阵墙的高度均相同，且所有像素单元内所有子像素间的所述黑矩阵墙的高度也都相同。
在本申请提供的柔性液晶显示面板中，所有像素单元周围的所述黑矩阵墙的高度均相同，每个像素单元内子像素间的所述黑矩阵墙的高度也相同，存在至少两个像素单元，其子像素间的所述黑矩阵墙的高度不相同。
在本申请提供的柔性液晶显示面板中，所有像素单元周围的所述黑矩阵墙的高度均相同，存在至少一个像素单元，所述像素单元内子像素间的所述黑矩阵墙的高度不相同。
在本申请提供的柔性液晶显示面板中，所述所有像素单元内，两个固定子像素间的所述黑矩阵墙的高度均相同。
在本申请提供的柔性液晶显示面板中，存在至少两个所述像素单元内，两个固定子像素间的所述黑矩阵墙的高度不相同。
本申请还提供一种彩膜基板的制备方法，其包括:
提供柔性衬底基板；
在所述柔性衬底基板上制备光阻层；
在所述光阻层远离所述柔性衬底基板的一侧制备配向层；
在所述配向层远离所述光阻层的一侧上制备黑矩阵墙。
 有益效果
本申请提供一种彩膜基板、柔性液晶显示面板及制备方法，其彩膜基板包括柔性衬底基板、光阻层、配向层以及黑矩阵墙；通过在彩膜基板上设置具有液晶容纳腔的立体黑矩阵墙，将液晶固定于容纳腔内，防止了液晶分子的随意流动和偏移，避免了因液晶的偏移造成的晶胞间隙不均，即解决了现有柔性液晶显示面板存在液晶分子受力发生严重偏移的问题。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的彩膜基板的3D结构示意图；
图2为本申请实施例提供的彩膜基板的第一种结构示意图；
图3为本申请实施例提供的彩膜基板的第二种结构示意图；
图4为本申请实施例提供的彩膜基板的第三种结构示意图；
图5为本申请实施例提供的彩膜基板的第四种结构示意图；
图6为本申请实施例提供的彩膜基板的第五种结构示意图；
图7为本申请实施例提供的彩膜基板的第六种结构示意图；
图8为本申请实施例提供的柔性液晶显示面板的结构示意图；
图9为本申请实施例提供的彩膜基板的制备示意图；
图10为本申请实施例提供的柔性液晶显示面板的制备流程图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，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。在图中，结构相似的单元是用以相同标号表示。
针对现有柔性液晶显示面板存在液晶分子受力发生严重偏移的问题，本申请提供一种彩膜基板可以解决这个问题。
在一种实施例中，如图1所示，本申请提供的彩膜基板1包括:
柔性衬底基板11，在一种实施例中，所述柔性衬底基板的材料为高分子聚合物；
光阻层12，位于所述柔性衬底基板11上，所述光阻层12包括同层依次重复设置的第一子像素121、第二子像素122和第三子像素123；
配向层13，位于所述光阻层12远离所述柔性衬底11的一侧；
黑矩阵墙14，位于所述配向层13远离所述光阻层12的一侧，且存在至少一处所述黑矩阵墙的高度为阈值高度，所述黑矩阵墙组成三维的蜂窝状立体结构，且形成有容纳腔，用于容纳液晶。
本申请提供一种彩膜基板，包括柔性衬底基板、光阻层、配向层以及黑矩阵墙；通过在彩膜基板上设置具有液晶容纳腔的立体黑矩阵墙，将液晶固定于容纳腔内，防止了液晶分子的随意流动和偏移，避免了因液晶的偏移造成的晶胞间隙不均，即解决了现有柔性液晶显示面板存在液晶分子受力发生严重偏移的问题
所述黑矩阵墙固定液晶的能力、对液晶显示面板中阵列基板和所述彩膜基板的支撑作用、以及对于光横向折射的阻挡作用都与所述黑矩阵墙的设置方式有关。所述黑矩阵墙高度设置的越高，所述高黑矩阵墙设置的越密集，所述黑矩阵墙固定液晶的能力、对液晶显示面板中阵列基板和所述彩膜基板的支撑作用、以及对于光横向折射的阻挡作用越好，即解决现有柔性液晶显示面板存在的液晶分子受力发生严重偏移的问题、以及对组色偏问题越有效。
所述黑矩阵墙各位置的高度设置的越接近阈值高度，所述黑矩阵墙的立体结构越牢固，在受到外界压力时，其支撑效果就越好；所述黑矩阵墙设置的限定空间越小，设置的限定小空间越密集，液晶移动和偏移的范围越小，在受到压力作用时，液晶分子的固定效果越好，即液晶分子受力发生严重偏移的可能性越小；同时，所述黑矩阵设置的高度越高，所述高黑矩阵墙设置的越密集，对于光横向折射的阻挡作用越强，即降低液晶显示面板对组色偏的效果越好。
以下图2至图7对应为本申请的彩膜基板的六种具体实施例。
在本申请的一种实施例中，如图2所示，所述黑矩阵墙14的高度均相同，所述高度为阈值高度，在三维空间上形成立体蜂窝状的结构。
该实施例对应的所述黑矩阵墙14，其所有部分均在显示面板中起主支撑作用，且三维的立体蜂窝状结构给与所述黑矩阵墙14更为牢固的几何结构，即该实施例对应的所述黑矩阵墙14为具有极强支撑能力的黑矩阵墙结构，在受到外界压力时，具有极好的支撑阵列基板和所述彩膜基板的效果。
所述黑矩阵墙14的高度均设置为阈值高度，就将所述容纳腔一个个限定在一个子像素面积对应的空间内，液晶移动和偏移的范围固定于小空间的所述容纳腔内，在受到压力作用时，液晶分子的固定效果极好，液晶分子发生偏移的可能性极小，从而解决了液晶显示面板存在的晶胞间隙不均的问题。
所述黑矩阵墙14的高度均设置为阈值高度，极好的阻挡了光的横向折射，从而能够极其有效降低液晶显示面板对组色偏的问题。
在本申请的一种实施例中，如图3所示，所有像素单元周围的所述黑矩阵墙14的高度均相同，所述高度为阈值高度；所有像素单元内所有子像素间的所述黑矩阵14的高度也都相同，所述高度低于阈值高度。
如图3所示的实施例，相较于如图2所示的实施例，其降低了所有像素单元内所有子像素间的所述黑矩阵14的高度，减少了所述黑矩阵墙14材料的使用。所有像素单元周围的所述黑矩阵墙14在液晶显示面板中起主支撑作用，所有像素单元内所有子像素间的所述黑矩阵14在液晶显示面板中起辅助支撑作用，其三维的立体类蜂窝状结构依然是牢固的几何构造，在受到外界压力时，起主支撑作用的所述黑矩阵墙14和起辅助支撑作用的所述黑矩阵墙14能够起到双重支撑阵列基板和所述彩膜基板的效果。
如图3所示的实施例，相较于如图2所示的实施例，其降低了所有像素单元内所有子像素间的所述黑矩阵14的高度，所述容纳腔的限定空间变大，图中同一像素单元内上面部分空间内的液晶流动的范围增大，增大为一个像素单元面积，但是下面大部分空间内的液晶任限定在一个子像素面积，在受到压力作用时，该实施例所述的黑矩阵14依然能够很好地固定液晶分子，防止其在较大的范围内偏移，从而解决了液晶显示面板存在的晶胞间隙不均的问题。
如图3所示的实施例，相较于如图2所示的实施例，所有像素单元周围的所述黑矩阵墙14的高度设置为阈值高度，极好的阻挡了光的横向折射，所有像素单元内所有子像素间的所述黑矩阵14的高度设置为低于阈值高度，也能有效阻挡部分光的横向折射，从而能够有效的降低液晶显示面板对组色偏的问题。
在本申请的一种实施例中，如图4所示，所有像素单元周围的所述黑矩阵墙14的高度均相同，所述高度为阈值高度；每个像素单元内子像素间的所述黑矩阵墙14的高度也相同，所述高度低于阈值高度；存在至少两个像素单元，其子像素间的所述黑矩阵墙14的高度不相同。
在本申请的一种实施例中，如图5所示，所有像素单元周围的所述黑矩阵墙14的高度均相同，所述高度为阈值高度；存在至少一个像素单元，所述像素单元内子像素间的所述黑矩阵墙14的高度不相同；所述所有像素单元内，两个固定子像素间的所述黑矩阵墙14的高度相同。
在本申请的一种实施例中，如图6所示，所有像素单元周围的所述黑矩阵墙14的高度均相同，所述高度为阈值高度；存在至少一个像素单元，所述像素单元内子像素间的所述黑矩阵墙14的高度不相同；存在至少两个所述像素单元，其内两个固定子像素间的所述黑矩阵墙14的高度不相同。
在本申请的一种实施例中，如图7所示，存在至少一个像素单元周围的所述黑矩阵墙14，存在至少一处的高度与别处的高度不相同。
如图8所示，本申请还提供一种柔性液晶显示面板，包括彩膜基板1、阵列基板2、以及容纳于所述彩膜基板的黑矩阵墙容纳腔内的液晶3，所述彩膜基板1包括:
柔性衬底基板11，在一种实施例中，所述柔性衬底基板的材料为高分子聚合物；
光阻层12，位于所述柔性衬底基板11上，所述光阻层12包括同层依次重复设置的第一子像素121、第二子像素122和第三子像素123；
配向层13，位于所述光阻层12远离所述柔性衬底11的一侧；
黑矩阵墙14，位于所述配向层13远离所述光阻层12的一侧，且存在至少一处所述黑矩阵墙的高度为阈值高度，所述黑矩阵墙组成三维的蜂窝状立体结构，且形成有容纳腔，用于容纳液晶。
本申请提供一种柔性液晶显示面板，包括彩膜基板、阵列基板、以及容纳于所述彩膜基板的黑矩阵墙容纳腔内的液晶，其彩膜基板包括柔性衬底基板、光阻层、配向层以及黑矩阵墙；通过在彩膜基板上设置具有液晶容纳腔的立体黑矩阵墙，将液晶固定于容纳腔内，防止了液晶分子的随意流动和偏移，避免了因液晶的偏移造成的晶胞间隙不均，即解决了现有柔性液晶显示面板存在液晶分子受力发生严重偏移的问题。
如图9所示，本申请提供一种彩膜基板的制备方法，包括:
提供柔性衬底基板11，如图9中的（a）所示；
在所述柔性衬底基板11上制备光阻层12，所述制备光阻层包括制备同层设置的第一子像素121、第二子像素122、第三子像素123，其效果如图9中的（b）所示；
在所述光阻层12远离所述柔性衬底基板11的一侧制备配向层13，其效果如图9中的（c）所示；
在所述配向层13远离所述光阻层12的一侧上制备黑矩阵墙14, 其效果如图9中的（d）所示。
同时，如图10所示，本申请还提供一种柔性液晶显示面板的制备方法，包括制备彩膜基板1、制备阵列基板2、以及将所述彩膜基板和所述阵列基板对合。
所述制备所述彩膜基板的具体步骤包括:
S11、提供柔性衬底基板；
S12、在所述柔性衬底基板上制备像素层；
S13、在所述像素层远离所述柔性衬底基板的一侧制备配向层；
S14、在所述配向层远离所述像素层的一侧上制备黑矩阵墙;
S15、在所述黑矩阵墙的容纳腔内注入液晶。
所述黑矩阵墙在所述像素层制备完成后再制作，避免了像素光阻在黑矩阵上形成“牛角”造成表面不平，从而影响后续支撑结构站位的问题，同时，在本申请实施例中，所述彩膜基板制程简化了现有彩膜基板的制备工序。
所述制备所述阵列基板的具体步骤包括：
S21、提供柔性衬底基板；
S22、在所述柔性衬底基板上依次制备各膜层；
S23、在所述膜层远离所述柔性衬底基板的一侧制备配向层；
S14、进行框胶涂布。
所述将所述彩膜基板和所述阵列基板对合的具体步骤包括：
将制备所得所述彩膜基板和制备所得的所述阵列基板进行合板。
根据上述实施例可知：
本申请提供一种彩膜基板、柔性液晶显示面板及制备方法，其彩膜基板包括柔性衬底基板、光阻层、配向层以及黑矩阵墙；通过在彩膜基板上设置具有液晶容纳腔的立体黑矩阵墙，将液晶固定于容纳腔内，防止了液晶分子的随意流动和偏移，避免了因液晶的偏移造成的晶胞间隙不均，即解决了现有柔性液晶显示面板存在液晶分子受力发生严重偏移的问题。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种彩膜基板，包括:
    柔性衬底基板；
    光阻层，位于所述柔性衬底基板上；
    配向层，位于所述光阻层远离所述柔性衬底的一侧；以及
    黑矩阵墙，位于所述配向层远离所述光阻层的一侧，且存在至少一处所述黑矩阵墙的高度为阈值高度，所述黑矩阵墙组成的立体结构形成有容纳腔。
  2. 如权利要求1所述的彩膜基板，其中，所述黑矩阵墙的高度均相同。
  3. 如权利要求1所述的彩膜基板，其中，存在至少一处所述黑矩阵墙的高度低于其余部分所述黑矩阵墙的高度。
  4. 如权利要求3所述的彩膜基板，其中，存在至少一个像素单元周围的所述黑矩阵墙的高度，高于该像素单元内子像素间所述黑矩阵墙的高度。
  5. 如权利要求4所述的彩膜基板，其中，所有像素单元周围的所述黑矩阵墙的高度均相同，且所有像素单元内所有子像素间的所述黑矩阵墙的高度也都相同。
  6. 如权利要求4所述的彩膜基板，其中，所有像素单元周围的所述黑矩阵墙的高度均相同，每个像素单元内子像素间的所述黑矩阵墙的高度也相同，存在至少两个像素单元，其子像素间的所述黑矩阵墙的高度不相同。
  7. 如权利要求4所述的彩膜基板，其中，所有像素单元周围的所述黑矩阵墙的高度均相同，存在至少一个像素单元，所述像素单元内子像素间的所述黑矩阵墙的高度不相同。
  8. 如权利要求7所述的彩膜基板，其中，所述所有像素单元内，两个固定子像素间的所述黑矩阵墙的高度均相同。
  9. 如权利要求7所述的彩膜基板，其中，存在至少两个所述像素单元内，两个固定子像素间的所述黑矩阵墙的高度不相同。
  10. 如权利要求3所述的彩膜基板，其中，存在至少一个像素单元周围的所述黑矩阵墙，存在至少一处高度与别处的高度不相同。
  11. 一种柔性液晶显示面板，其中，包括阵列基板、彩膜基板、以及容纳于所述彩膜基板的黑矩阵墙容纳腔内的液晶，所述彩膜基板包括:
    柔性衬底基板；
    光阻层，位于所述柔性衬底基板上；
    配向层，位于所述光阻层远离所述柔性衬底的一侧；以及
    黑矩阵墙，位于所述配向层远离所述光阻层的一侧，且存在至少一处所述黑矩阵墙的高度为阈值高度，所述黑矩阵墙组成的立体结构形成有容纳腔。
  12. 如权利要求11所述的柔性液晶显示面板，其中，所述黑矩阵墙的高度均相同。
  13. 如权利要求11所述的柔性液晶显示面板，其中，存在至少一处所述黑矩阵墙的高度低于其余部分所述黑矩阵墙的高度。
  14. 如权利要求13所述的柔性液晶显示面板，其中，存在至少一个像素单元周围的所述黑矩阵墙的高度，高于该像素单元内子像素间所述黑矩阵墙的高度。
  15. 如权利要求14所述的柔性液晶显示面板，其中，所有像素单元周围的所述黑矩阵墙的高度均相同，且所有像素单元内所有子像素间的所述黑矩阵墙的高度也都相同。
  16. 如权利要求14所述的柔性液晶显示面板，其中，所有像素单元周围的所述黑矩阵墙的高度均相同，每个像素单元内子像素间的所述黑矩阵墙的高度也相同，存在至少两个像素单元，其子像素间的所述黑矩阵墙的高度不相同。
  17. 如权利要求14所述的柔性液晶显示面板，其中，所有像素单元周围的所述黑矩阵墙的高度均相同，存在至少一个像素单元，所述像素单元内子像素间的所述黑矩阵墙的高度不相同。
  18. 如权利要求17所述的柔性液晶显示面板，其中，所述所有像素单元内，两个固定子像素间的所述黑矩阵墙的高度均相同。
  19. 如权利要求17所述的柔性液晶显示面板，其中，存在至少两个所述像素单元内，两个固定子像素间的所述黑矩阵墙的高度不相同。
  20. 一种彩膜基板的制备方法，包括:
    提供柔性衬底基板；
    在所述柔性衬底基板上制备光阻层；
    在所述光阻层远离所述柔性衬底基板的一侧制备配向层；
    在所述配向层远离所述光阻层的一侧上制备黑矩阵墙。
PCT/CN2019/082011 2019-03-12 2019-04-10 彩膜基板、柔性液晶显示面板及制备方法 WO2020181604A1 (zh)

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