WO2020042344A1 - 一种柔性液晶显示面板 - Google Patents

一种柔性液晶显示面板 Download PDF

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Publication number
WO2020042344A1
WO2020042344A1 PCT/CN2018/113632 CN2018113632W WO2020042344A1 WO 2020042344 A1 WO2020042344 A1 WO 2020042344A1 CN 2018113632 W CN2018113632 W CN 2018113632W WO 2020042344 A1 WO2020042344 A1 WO 2020042344A1
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WIPO (PCT)
Prior art keywords
light
liquid crystal
flexible
display panel
substrate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/113632
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English (en)
French (fr)
Inventor
姜何
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/308,825 priority Critical patent/US10802349B2/en
Publication of WO2020042344A1 publication Critical patent/WO2020042344A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/133305—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
    • G02F1/133512—Light shielding layers, e.g. black matrix

Definitions

  • the invention relates to the field of display technology, in particular to a flexible liquid crystal display panel.
  • Flexible liquid crystal display panels have the advantages of lightness, thinness, foldable bending, and portability, and have received widespread attention in wearable displays, foldable mobile phones, curved TVs, and military applications.
  • a polymer wall Polymer wall
  • the polymer wall can also play a stable supporting role, thereby achieving a high-quality display effect.
  • the ultraviolet light used is strongly reflected by the glass substrate and re-enters the flexible substrate, so that the width of the polymer wall near the flexible substrate is wider than that of the photomask.
  • the width of the portion is large, thereby blocking the light in the display area and reducing the aperture ratio.
  • An object of the present invention is to provide a flexible liquid crystal display panel capable of improving an aperture ratio.
  • the present invention provides a flexible liquid crystal display panel including:
  • the array substrate is disposed opposite to the color filter substrate and includes a first flexible substrate;
  • the color filter substrate includes a second glass substrate, a light blocking layer, and a second flexible substrate, and the light blocking layer is located between the second glass substrate and the second flexible substrate;
  • a plurality of polymer walls are disposed between the array substrate and the color filter substrate.
  • the polymer walls are irradiated with ultraviolet rays on the liquid crystal material by using a photomask having a plurality of light transmitting portions, so that the liquid crystal material Obtained by polymerizing a reactive monomer, wherein the light transmitting portion corresponds to the position of the polymer wall, the width of the polymer wall is equal to the width of the light transmitting portion, and the liquid crystal material includes liquid crystal molecules Reactive monomers and photoinitiators;
  • the light-blocking layer is a light-shielding film or a light-absorbing film, and the thickness of the light-blocking layer ranges from 30 ⁇ m to 120 ⁇ m.
  • a material of the light blocking layer is doped with a light absorbing material.
  • a cross-sectional structure of the light blocking layer includes at least one light shielding film and at least one light absorption film.
  • a cross-sectional structure of the light blocking layer includes a light shielding film and a light absorption film; the light absorption film is located between the second flexible substrate and the light shielding film, and the light shielding film Located on the second glass substrate.
  • a cross-sectional structure of the light blocking layer includes a light-shielding film and two light-absorbing films; one of the light-absorbing films is located between the second glass substrate and the light-shielding film, Another layer of the light absorbing film is located between the light shielding film and the second flexible substrate.
  • a material of the light shielding film is a black matrix material.
  • the light shielding film is a light shielding colloid.
  • a first adhesive layer and a second adhesive layer are respectively provided on an upper surface and a lower surface of the light-shielding colloid, and the light-shielding colloid passes through the first adhesive layer and the second flexibility.
  • the substrate is bonded, the light-shielding colloid is bonded to the second glass substrate through the second adhesive layer, and the viscosity of the first adhesive layer is smaller than the viscosity of the second adhesive layer.
  • the thickness of the light blocking layer ranges from 50 ⁇ m to 120 ⁇ m.
  • the present invention provides a flexible liquid crystal display panel, which includes:
  • the array substrate is disposed opposite to the color filter substrate and includes a first flexible substrate;
  • the color filter substrate includes a second glass substrate, a light blocking layer, and a second flexible substrate, and the light blocking layer is located between the second glass substrate and the second flexible substrate;
  • a plurality of polymer walls are disposed between the array substrate and the color filter substrate.
  • the polymer walls are irradiated with ultraviolet rays on the liquid crystal material by using a photomask having a plurality of light transmitting portions, so that the liquid crystal material Obtained by polymerizing a reactive monomer, wherein the light transmitting portion corresponds to the position of the polymer wall, the width of the polymer wall is equal to the width of the light transmitting portion, and the liquid crystal material includes liquid crystal molecules Reactive monomers and photoinitiators.
  • the light blocking layer is a light-shielding film or a light-absorbing film.
  • a material of the light blocking layer is doped with a light absorbing material.
  • a cross-sectional structure of the light blocking layer includes at least one light shielding film and at least one light absorption film.
  • a cross-sectional structure of the light blocking layer includes a light shielding film and a light absorption film; the light absorption film is located between the second flexible substrate and the light shielding film, and the light shielding film Located on the second glass substrate.
  • a cross-sectional structure of the light blocking layer includes a light-shielding film and two light-absorbing films; one of the light-absorbing films is located between the second glass substrate and the light-shielding film, Another layer of the light absorbing film is located between the light shielding film and the second flexible substrate.
  • a material of the light shielding film is a black matrix material.
  • the light shielding film is a light shielding colloid.
  • a first adhesive layer and a second adhesive layer are respectively provided on an upper surface and a lower surface of the light-shielding colloid, and the light-shielding colloid passes the first adhesive layer and the second flexibility
  • the substrate is bonded, the light-shielding colloid is bonded to the second glass substrate through the second adhesive layer, and the viscosity of the first adhesive layer is smaller than the viscosity of the second adhesive layer.
  • the thickness of the light blocking layer ranges from 30 ⁇ m to 120 ⁇ m.
  • the thickness of the light blocking layer ranges from 50 ⁇ m to 120 ⁇ m.
  • a light blocking layer is provided between the glass substrate on the color film substrate side and the flexible substrate, so as to prevent ultraviolet rays reflected by the glass substrate from entering the flexible substrate, and prevent the width of the polymer wall from increasing Blocks the light, which increases the aperture ratio.
  • FIG. 1 is a schematic structural diagram of a conventional flexible liquid crystal display panel during manufacturing
  • FIG. 2 is a schematic structural diagram of a flexible liquid crystal display panel during the manufacturing process of the present invention.
  • FIG. 3 is a schematic diagram of a first structure of a light blocking layer according to the present invention.
  • FIG. 4 is a schematic diagram of a second structure of the light blocking layer of the present invention.
  • FIG. 5 is a schematic structural diagram of a flexible liquid crystal display panel according to the present invention.
  • a conventional method for manufacturing a flexible liquid crystal display panel includes:
  • this step includes fabricating a first flexible substrate 21 under the first glass substrate 22, such as coating a polyimide (PI) material under the first glass substrate 22 and curing it to form the first flexible substrate 21 .
  • PI polyimide
  • This step further includes forming a TFT layer under the first flexible substrate 21.
  • this step includes fabricating a second flexible substrate 12 on the second glass substrate 11, such as coating a polyimide (PI) material on the second glass substrate 11 and curing it to form the second flexible substrate 12. .
  • PI polyimide
  • This step may further include fabricating a color resist layer and a transparent conductive layer on the second flexible substrate 12.
  • a liquid crystal material is filled between the array substrate 20 and the color filter substrate 10.
  • the liquid crystal material includes liquid crystal molecules, reactive monomers, and a photoinitiator.
  • the array substrate 20 and the color filter substrate 10 are aligned, and then a sealant 24 is coated on the peripheral positions of the array substrate 20 and the color filter substrate 10; a spacer is mixed in the sealant 24 Materials, the sealant 24 is cured by ultraviolet irradiation and baking, so that the array substrate 20 and the color filter substrate 10 are bonded together by the sealant 24, and the sealant 24 plays a role of supporting and fixing the box thickness.
  • a photomask 30 is used to irradiate the liquid crystal material with ultraviolet rays, and the reactive monomers irradiated with light undergo a polymerization reaction to form a polymer wall 23.
  • the photomask 30 has a plurality of transparent portions 31 and a plurality of opaque portions 32 .
  • the width of the polymer wall 23 is greater than the width of the light transmitting portion 31. In particular, the width of the polymer wall 23 near the side of the second flexible substrate 12 is large.
  • the arrow direction in FIG. 1 is the irradiation direction of ultraviolet rays. Under ultraviolet irradiation, the initiator generates free radical ions.
  • the method further includes:
  • the first glass substrate and the second glass substrate are separately peeled to form a flexible flexible liquid crystal display panel.
  • the first glass substrate 22 and the second glass substrate 11 are separately peeled by laser peeling to form a flexible flexible liquid crystal display panel.
  • the method further includes cutting and module processes. For example, polarizing film attachment, integrated circuit crimping, and flexible backlight assembly are performed to form the final flexible liquid crystal display device.
  • the manufacturing method of the flexible liquid crystal display panel of the present invention includes:
  • this step includes fabricating a first flexible substrate 21 under the first glass substrate 22, such as coating a polyimide (PI) material under the first glass substrate 22 and curing it to form the first flexible substrate 21 .
  • PI polyimide
  • This step further includes forming a TFT layer (not shown in the figure) under the first flexible substrate 21.
  • This step includes: S2021, sequentially fabricating a light blocking layer and a second flexible substrate on a second glass substrate;
  • the material of the light blocking layer is coated on the second glass substrate 11 and cured to form the light blocking layer 13.
  • a polyimide (PI) material is coated on the light blocking layer 13 and cured to form a second flexible substrate 12.
  • the light blocking layer 13 is a single-layer structure, and the light blocking layer 13 is a light-shielding film or a light-absorbing film. That is, the material of the light blocking layer 13 is a light-shielding material or a light-absorbing material.
  • the material of the light shielding film is a black matrix material.
  • the light-shielding film is a light-shielding colloid.
  • the viscosity between the light-shielding colloid and the second flexible substrate 12 is less than a preset value.
  • a first adhesive layer and a second adhesive layer are respectively provided on an upper surface and a lower surface of the light-shielding colloid, and the light-shielding colloid is bonded to the second flexible substrate 12 through the first adhesive layer.
  • the light-shielding colloid is bonded to the second glass substrate 11 through the second adhesive layer, and the viscosity of the first adhesive layer is smaller than the viscosity of the second adhesive layer.
  • the light-blocking layer 13 is a light-shielding film
  • a material of the light-blocking layer 13 is doped with a light-absorbing material.
  • the material of the light blocking layer 13 includes a light shielding material and a light absorbing material.
  • the light blocking layer 13 is a multilayer structure, and the cross-sectional structure of the light blocking layer 13 includes at least one light shielding film and at least one light absorbing film.
  • the cross-sectional structure of the light blocking layer 13 includes a light absorbing film 131 and a light shielding film 132, and the light absorbing film 131 is located in the first Between two flexible substrates 12 and the light shielding film 132. That is, the light absorbing film 131 is close to the second flexible substrate 12, and the light shielding film 132 is close to the second glass substrate 11, that is, located on the second glass substrate 11.
  • the cross-sectional structure of the light blocking layer 13 includes two light absorbing films 131 and 133 and a light shielding film 132. 132 is located between two layers of light absorbing films 131 and 133. One of the light absorbing films 131 is close to the second glass substrate 11 and the other light absorbing film 133 is close to the second flexible substrate 12.
  • the cross-sectional structure of the light blocking layer 13 includes two or more light absorbing films or two or more light shielding films.
  • the thickness of the light blocking layer 13 ranges from 30 ⁇ m to 120 ⁇ m. It can be understood that when the light blocking layer 13 has a multilayer structure, the thickness of the light blocking layer 13 is the sum of the thicknesses of all the layers. Preferably, the thickness of the light blocking layer 13 ranges from 50 ⁇ m to 120 ⁇ m. It is more preferably 100-120 ⁇ m. Of course, it can be understood that the light blocking layer 13 is easily peeled from the second flexible substrate 12.
  • This step may further include fabricating a color resist layer and a transparent conductive layer (not shown in the figure) on the second flexible substrate 12.
  • a liquid crystal material is filled between the array substrate 20 and the color filter substrate 10; the liquid crystal material includes liquid crystal molecules, a reactive monomer, and a photoinitiator.
  • the array substrate 20 and the color filter substrate 10 are aligned, and then a sealant 24 is coated on the peripheral positions of the array substrate 20 and the color filter substrate 10; a spacer is mixed in the sealant 24 Material, the sealant 24 is cured by ultraviolet irradiation and baking, so that the array substrate 20 and the color film substrate 10 are bonded together by the sealant 24, which plays a role of supporting and fixing the box thickness.
  • the liquid crystal material is irradiated with ultraviolet rays using a photomask 30, and the reactive monomers irradiated with light undergo a polymerization reaction to form a polymer wall 33, thereby forming a flat flexible liquid crystal display panel.
  • the photomask 30 has a plurality of transparent portions 31 and a plurality of opaque portions 32. Wherein, the position of the polymer wall 33 corresponds to the position of the light transmitting portion 31, and the width S of the polymer wall 33 is equal to the width W of the light transmitting portion 31.
  • the initiator Under ultraviolet irradiation, the initiator generates free radical ions.
  • the energy range of UV is 10-100mJ / mW.
  • the method further includes:
  • the first glass substrate and the second glass substrate are separately peeled by laser peeling to form a flexible flexible liquid crystal display panel.
  • first glass substrate 22 and the first flexible substrate 21 are separated by laser peeling, and the second glass substrate 11 and the light blocking layer 13 are separated from the second flexible substrate 12 to form a flexible flexible liquid crystal. Display panel.
  • the method further includes cutting and module processes. For example, polarizing film attachment, integrated circuit crimping, and flexible backlight assembly are performed to form the final flexible liquid crystal display device.
  • a light blocking layer is provided between the glass substrate on the color filter substrate side and the flexible substrate, the ultraviolet rays reflected by the glass substrate are prevented from entering the flexible substrate, and the width of the polymer wall is prevented from becoming large and blocking light, thereby improving the opening. rate.
  • the present invention also provides a flexible liquid crystal display panel.
  • the flexible liquid crystal display panel is a flat flexible liquid crystal display panel including an array substrate 20, a color filter substrate 10, and a plurality of polymer walls 33.
  • the array The substrate 20 includes a first glass substrate 22 and a first flexible substrate 21 under the first glass substrate 22; the array substrate 20 may further include a TFT layer (not shown in the figure).
  • the color filter substrate 10 includes a second glass substrate 11, a light blocking layer 13, and a second flexible substrate 12.
  • the light blocking layer 12 is located between the second glass substrate 11 and the second flexible substrate 12;
  • the film substrate 10 may further include a color resist layer and a transparent conductive layer (not shown in the figure).
  • a polymer wall 33 is disposed between the array substrate 10 and the color filter substrate 20, and the polymer wall 33 is irradiated with ultraviolet rays on the liquid crystal material by using a photomask 30 having a plurality of light transmitting portions 31 so that the It is obtained by polymerizing a reactive monomer in a liquid crystal material, wherein the light transmitting portion 31 corresponds to a position of the polymer wall 33, and the width of the polymer wall 33 is equal to the width of the light transmitting portion 31.
  • the light transmitting portion 31 corresponds to the position of the edge of the pixel.
  • the liquid crystal display panel of the present invention further includes a liquid crystal layer (not shown), which is located between the array substrate 20 and the color filter substrate 10, and the thickness of the polymer wall 33 is equal to the thickness of the liquid crystal layer. .
  • the light blocking layer 13 is a single-layer structure, and the light blocking layer 13 is a light-shielding film or a light-absorbing film. That is, the material of the light blocking layer 13 is a light-shielding material or a light-absorbing material.
  • the material of the light shielding film is a black matrix material.
  • the light-shielding film is a light-shielding colloid.
  • the viscosity between the light-shielding colloid and the second flexible substrate 12 is less than a preset value.
  • a first glue layer and a second glue layer are respectively provided on the upper surface and the lower surface of the light-shielding colloid, and the light-shielding colloid is bonded to the second flexible substrate 12 through the first glue layer.
  • the viscosity of the first adhesive layer is smaller than the viscosity of the second adhesive layer.
  • the light-blocking layer 13 is a light-shielding film
  • a material of the light-blocking layer 13 is doped with a light-absorbing material.
  • the material of the light blocking layer 13 includes a light shielding material and a light absorbing material.
  • the light blocking layer 13 is a multilayer structure, and the cross-sectional structure of the light blocking layer 13 includes at least one light shielding film and at least one light absorbing film.
  • the cross-sectional structure of the light blocking layer 13 includes a light absorption film 131 and a light shielding film 132, and the light absorption film 131 is located in the Between two flexible substrates 12 and the light shielding film 132. That is, the light absorbing film 131 is close to the second flexible substrate 12, and the light shielding film 132 is close to the second glass substrate 11.
  • the cross-sectional structure of the light blocking layer 13 includes two light absorbing films 131 and 133 and a light shielding film 132. 132 is located between two layers of light absorbing films 131 and 133. One of the light absorbing films 131 is close to the second glass substrate 11 and the other light absorbing film 133 is close to the second flexible substrate 12.
  • the cross-sectional structure of the light blocking layer 13 includes two or more light absorbing films or two or more light shielding films.
  • the thickness of the light blocking layer 13 ranges from 30 ⁇ m to 120 ⁇ m. It can be understood that when the light blocking layer 13 is a multilayer structure, the thickness of the light blocking layer 13 is the sum of its thicknesses. Preferably, the thickness of the light blocking layer 13 ranges from 50 ⁇ m to 120 ⁇ m. It is more preferably 100-120 ⁇ m.
  • This step may further include fabricating a color resist layer and a transparent conductive layer (not shown in the figure) on the second flexible substrate 12.
  • the light blocking layer 13 is easily peeled from the second flexible substrate 12.
  • the ultraviolet rays reflected by the second glass substrate are prevented from entering the second flexible substrate again, so that the reactive monomer in the second flexible substrate is close to the second flexible substrate.
  • the volume is too concentrated, which causes the width of the polymer wall to increase and block light, thereby increasing the aperture ratio.
  • a light blocking layer is provided between the glass substrate on the color filter substrate side and the flexible substrate, so as to prevent ultraviolet rays reflected by the glass substrate from entering the flexible substrate and prevent the width of the polymer wall from becoming large. The light is blocked, thereby increasing the aperture ratio.

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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

一种柔性液晶显示面板，该柔性液晶显示面板包括：彩膜基板（10），包括第二玻璃基板（11）、光阻挡层（13）以及第二柔性衬底（12），光阻挡层（13）位于第二玻璃基板（11）和第二柔性衬底（12）之间；多个聚合物墙（23），设置在阵列基板（20）和彩膜基板（10）之间，聚合物墙（23）的宽度等于光罩（30）的透光部分（31）的宽度。

Description

一种柔性液晶显示面板 技术领域
本发明涉及显示技术领域，特别是涉及一种柔性液晶显示面板。
 背景技术
柔性液晶显示面板具有轻、薄、可折叠弯曲、便携等优势，在可穿戴显示、可折叠手机、曲面电视、及军事应用中受到广泛关注。通常为了保持柔性基板之间厚度的均一性，柔性液晶显示面板中设置有聚合物墙（Polymer wall），聚合物墙还可以起到稳定的支撑作用，从而实现了高品质的显示效果。
 技术问题
但是，由于在聚合物墙的形成过程，所使用的紫外光受到玻璃基板的强反射而再次进入到柔性衬底中，从而使得靠近柔性衬底侧的聚合物墙的宽度比光罩的透光部分的宽度大，从而遮挡了显示区域的光线，降低了开口率。
 技术解决方案
本发明的目的在于提供一种柔性液晶显示面板，能够提高开口率。
为解决上述技术问题，本发明提供一种柔性液晶显示面板，其包括；
阵列基板，与彩膜基板相对设置，包括第一柔性衬底；
彩膜基板，包括第二玻璃基板、光阻挡层以及第二柔性衬底，所述光阻挡层位于所述第二玻璃基板和所述第二柔性衬底之间；以及
多个聚合物墙，设置在所述阵列基板和所述彩膜基板之间，所述聚合物墙是采用具有多个透光部分的光罩对液晶材料进行紫外线照射，使所述液晶材料中的反应性单体发生聚合反应得到的，其中所述透光部分和所述聚合物墙的位置对应，所述聚合物墙的宽度等于所述透光部分的宽度，所述液晶材料包括液晶分子、反应性单体及光引发剂；
所述光阻挡层为遮光膜或者吸光膜，所述光阻挡层的厚度范围为30μm-120μm。
在本发明的柔性液晶显示面板中，当所述光阻挡层为遮光膜时，所述光阻挡层的材料中掺入有吸光材料。
在本发明的柔性液晶显示面板中，所述光阻挡层的截面结构包括至少一遮光膜和至少一吸光膜。
在本发明的柔性液晶显示面板中，所述光阻挡层的截面结构包括遮光膜和吸光膜；所述吸光膜位于所述第二柔性衬底和和所述遮光膜之间，所述遮光膜位于所述第二玻璃基板上。
在本发明的柔性液晶显示面板中，所述光阻挡层的截面结构包括遮光膜和两层吸光膜；其中一层所述吸光膜位于所述第二玻璃基板和和所述遮光膜之间，另外一层所述吸光膜位于所述遮光膜和所述第二柔性衬底之间。
在本发明的柔性液晶显示面板中，所述遮光膜的材料为黑色矩阵材料。
在本发明的柔性液晶显示面板中，所述遮光膜为遮光胶体。
在本发明的柔性液晶显示面板中，所述遮光胶体的上表面和下表面分别设置有第一胶层和第二胶层，所述遮光胶体通过所述第一胶层与所述第二柔性衬底粘结，所述遮光胶体通过所述第二胶层与所述第二玻璃基板粘结，所述第一胶层的粘度小于所述第二胶层的粘度。
在本发明的柔性液晶显示面板中，所述光阻挡层的厚度范围为50μm-120μm。
为解决上述技术问题，本发明提供一种柔性液晶显示面板，其包括：
阵列基板，与彩膜基板相对设置，包括第一柔性衬底；
彩膜基板，包括第二玻璃基板、光阻挡层以及第二柔性衬底，所述光阻挡层位于所述第二玻璃基板和所述第二柔性衬底之间；
多个聚合物墙，设置在所述阵列基板和所述彩膜基板之间，所述聚合物墙是采用具有多个透光部分的光罩对液晶材料进行紫外线照射，使所述液晶材料中的反应性单体发生聚合反应得到的，其中所述透光部分和所述聚合物墙的位置对应，所述聚合物墙的宽度等于所述透光部分的宽度，所述液晶材料包括液晶分子、反应性单体及光引发剂。
在本发明的柔性液晶显示面板中，所述光阻挡层为遮光膜或者吸光膜。
在本发明的柔性液晶显示面板中，当所述光阻挡层为遮光膜时，所述光阻挡层的材料中掺入有吸光材料。
在本发明的柔性液晶显示面板中，所述光阻挡层的截面结构包括至少一遮光膜和至少一吸光膜。
在本发明的柔性液晶显示面板中，所述光阻挡层的截面结构包括遮光膜和吸光膜；所述吸光膜位于所述第二柔性衬底和和所述遮光膜之间，所述遮光膜位于所述第二玻璃基板上。
在本发明的柔性液晶显示面板中，所述光阻挡层的截面结构包括遮光膜和两层吸光膜；其中一层所述吸光膜位于所述第二玻璃基板和和所述遮光膜之间，另外一层所述吸光膜位于所述遮光膜和所述第二柔性衬底之间。
在本发明的柔性液晶显示面板中，所述遮光膜的材料为黑色矩阵材料。
在本发明的柔性液晶显示面板中，所述遮光膜为遮光胶体。
在本发明的柔性液晶显示面板中，所述遮光胶体的上表面和下表面分别设置有第一胶层和第二胶层，所述遮光胶体通过所述第一胶层与所述第二柔性衬底粘结，所述遮光胶体通过所述第二胶层与所述第二玻璃基板粘结，所述第一胶层的粘度小于所述第二胶层的粘度。
在本发明的柔性液晶显示面板中，所述光阻挡层的厚度范围为30μm-120μm。
在本发明的柔性液晶显示面板中，所述光阻挡层的厚度范围为50μm-120μm。
 有益效果
本发明的柔性液晶显示面板，通过在彩膜基板侧的玻璃基板和柔性衬底之间设置光阻挡层，从而防止玻璃基板反射的紫外线进入柔性衬底中，避免聚合物墙的宽度变大而遮挡光线，进而提高了开口率。
 附图说明
图1为现有柔性液晶显示面板制作过程中的结构示意图；
图2为本发明柔性液晶显示面板制作过程中的结构示意图。
图3为本发明光阻挡层的第一种结构示意图。
图4为本发明光阻挡层的第二种结构示意图。
图5为本发明柔性液晶显示面板的结构示意图。
 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，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，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发明，而非用以限制本发明。在图中，结构相似的单元是以相同标号表示。
如图1所示，现有的柔性液晶显示面板的制作方法包括：
S101、制作阵列基板20；
例如，该步骤包括在第一玻璃基板22下制作第一柔性衬底21，比如在第一玻璃基板22下涂布聚酰亚胺（PI）材料，并对其固化形成第一柔性衬底21。
该步骤还包括在第一柔性衬底21下制作TFT层。
S102、制作彩膜基板10；
例如，该步骤包括在第二玻璃基板11上制作第二柔性衬底12，比如在第二玻璃基板11上涂布聚酰亚胺（PI）材料，并对其固化形成第二柔性衬底12。
该步骤还可包括在第二柔性衬底12上制作色阻层以及透明导电层。
S103、在阵列基板和彩膜基板之间填充液晶材料；
例如，在阵列基板20和彩膜基板10之间填充液晶材料，该液晶材料包括液晶分子、反应性单体及光引发剂。
S104、对所述阵列基板和所述彩膜基板进行对组贴合；
例如，对阵列基板20和彩膜基板10进行对组，之后在所述阵列基板20和所述彩膜基板10的周边位置涂布密封胶24；该密封胶24中混合有间隙子（spacer）材料，通过紫外线照射及烘烤的方式使密封胶24固化，以使阵列基板20和彩膜基板10通过密封胶24粘结在一起，密封胶24起到支撑及固定盒厚的作用。
S105、采用光罩对所述液晶材料进行紫外线照射，使所述液晶材料中的反应性单体发生聚合反应形成聚合物墙；
例如，采用光罩30对所述液晶材料进行紫外线照射，照射到光的反应性单体发生聚合反应形成聚合物墙23，光罩30具有多个透光部分31和多个不透光部分32。其中所述聚合物墙23的宽度大于所述透光部分31的宽度。特别是靠近第二柔性衬底12侧的聚合物墙23的宽度较大。图1中的箭头方向为紫外线的照射方向。在紫外线照射下，引发剂产生自由基离子。
所述方法还包括：
S106、采用激光剥离的方式，分别剥离第一玻璃基板和第二玻璃基板，形成可弯曲的柔性液晶显示面板。
例如，采用激光剥离的方式，分别剥离第一玻璃基板22和第二玻璃基板11，形成可弯曲的柔性液晶显示面板。
可以理解的，所述方法还包括进行切割及模组工艺。例如，进行偏光片贴附、集成电路压接及柔性背光组装等，以形成最终的柔性液晶显示装置。
如图2所示，本发明的柔性液晶显示面板的制作方法包括：
S201、制作阵列基板20；
例如，该步骤包括在第一玻璃基板22下制作第一柔性衬底21，比如在第一玻璃基板22下涂布聚酰亚胺（PI）材料，并对其固化形成第一柔性衬底21。
该步骤还包括在第一柔性衬底21下制作TFT层（图中未示出）。
S202、制作彩膜基板10；
该步骤包括：S2021、在第二玻璃基板上依次制作光阻挡层以及第二柔性衬底；
例如，在第二玻璃基板11上涂布光阻挡层的材料，并对其固化形成光阻挡层13。之后，在光阻挡层13上涂布聚酰亚胺（PI）材料，并对其固化形成第二柔性衬底12。
在一实施例中，所述光阻挡层13为单层结构，所述光阻挡层13为遮光膜或者吸光膜。也即所述光阻挡层13的材料为遮光材料或者吸光材料。
在一实施方式中，当所述光阻挡层13为遮光膜时，遮光膜的材料为黑色矩阵材料。
在另一实施方式中，所述遮光膜为遮光胶体。
为了防止剥离过程中，损坏柔性衬底，所述遮光胶体与所述第二柔性衬底12之间的粘度小于预设值。比如，所述遮光胶体的上表面和下表面分别设置有第一胶层和第二胶层，所述遮光胶体通过所述第一胶层与所述第二柔性衬底12粘结，所述遮光胶体通过所述第二胶层与所述第二玻璃基板11粘结，所述第一胶层的粘度小于所述第二胶层的粘度。
当所述光阻挡层13为遮光膜时，所述光阻挡层13的材料中掺入有吸光材料。此时所述光阻挡层13的材料包括遮光材料和吸光材料。
在另一实施例中，所述光阻挡层13为多层结构，所述光阻挡层13的截面结构包括至少一遮光膜和至少一吸光膜。
为了进一步减少第二玻璃基板的反射光，在一实施方式中，如图3所示，所述光阻挡层13的截面结构包括吸光膜131和遮光膜132，所述吸光膜131位于所述第二柔性衬底12和和所述遮光膜132之间。也即吸光膜131靠近第二柔性衬底12，遮光膜132靠近第二玻璃基板11，也即位于第二玻璃基板11上。
为了更好地减少第二玻璃基板的反射光，在另一实施方式中，如图4所示，所述光阻挡层13的截面结构包括两层吸光膜131、133和遮光膜132，遮光膜132位于两层吸光膜131、133之间，其中一吸光膜131靠近第二玻璃基板11，另一吸光膜133靠近第二柔性衬底12。
可以理解的，在其他实施方式中，所述光阻挡层13的截面结构包括两层以上的吸光膜或者两层以上的遮光膜。
其中所述光阻挡层13的厚度范围为30μm-120μm。可以理解的，当所述光阻挡层13为多层结构时，光阻挡层13的厚度为所有层的厚度之和。优选地，所述光阻挡层13的厚度范围为50μm-120μm。更优选地为100-120μm。当然，可以理解的，该光阻挡层13容易与第二柔性衬底12剥离。
该步骤还可包括在第二柔性衬底12上制作色阻层以及透明导电层（图中未示出）。
S203、在阵列基板和彩膜基板之间填充液晶材料；
例如，在阵列基板20和彩膜基板10之间填充液晶材料；该液晶材料包括液晶分子、反应性单体及光引发剂。
S204、对所述阵列基板和所述彩膜基板进行对组贴合。
例如，对阵列基板20和彩膜基板10进行对组，之后在所述阵列基板20和所述彩膜基板10的周边位置涂布密封胶24；该密封胶24中混合有间隙子（spacer）材料，通过紫外线照射及烘烤的方式使密封胶24固化，以使阵列基板20和彩膜基板10通过密封胶24粘结在一起，该密封胶24起到支撑及固定盒厚的作用。
S205、采用具有多个透光部分的光罩对所述液晶材料进行紫外线照射，使所述液晶材料中的反应性单体发生聚合反应形成聚合物墙；
例如，采用光罩30对所述液晶材料进行紫外线照射，照射到光的反应性单体发生聚合反应形成聚合物墙33，从而形成平整的柔性液晶显示面板。其中光罩30具有多个透光部分31和多个不透光部分32。其中所述聚合物墙33的位置与所述透光部分31的位置对应，所述聚合物墙33的宽度S等于所述透光部分31的宽度W。在紫外线照射下，引发剂产生自由基离子。其中紫外线的能量范围为10-100mJ/mW。
所述方法还包括：
S206、采用激光剥离的方式，分别剥离第一玻璃基板和第二玻璃基板，形成可弯曲的柔性液晶显示面板。
例如，采用激光剥离的方式，分别将第一玻璃基板22与第一柔性衬底21剥离，以及将第二玻璃基板11和光阻挡层13与第二柔性衬底12剥离，形成可弯曲的柔性液晶显示面板。
可以理解的，所述方法还包括进行切割及模组工艺。例如，进行偏光片贴附、集成电路压接及柔性背光组装等，以形成最终的柔性液晶显示装置。
由于通过在彩膜基板侧的玻璃基板和柔性衬底之间设置光阻挡层，从而防止玻璃基板反射的紫外线进入柔性衬底中，避免聚合物墙的宽度变大而遮挡光线，从而提高了开口率。
结合图5，本发明还提供一种柔性液晶显示面板，所述柔性液晶显示面板为平整的柔性液晶显示面板，其包括阵列基板20、彩膜基板10以及多个聚合物墙33；所述阵列基板20包括第一玻璃基板22和位于第一玻璃基板22下的第一柔性衬底21；阵列基板20还可包括TFT层（图中未示出）。
彩膜基板10包括第二玻璃基板11、光阻挡层13以及第二柔性衬底12，所述光阻挡层12位于所述第二玻璃基板11和所述第二柔性衬底12之间；彩膜基板10还可包括色阻层、透明导电层（图中未示出）。
聚合物墙33设置在所述阵列基板10和所述彩膜基板20之间，所述聚合物墙33是采用具有多个透光部分31的光罩30对液晶材料进行紫外线照射，使所述液晶材料中的反应性单体发生聚合反应得到的，其中所述透光部分31和所述聚合物墙33的位置对应，所述聚合物墙33的宽度等于所述透光部分31的宽度。该透光部分31与像素边缘的位置对应。
本发明的液晶显示面板还包括液晶层（图中未示出），位于所述阵列基板20和所述彩膜基板10之间，所述聚合物墙33的厚度与所述液晶层的厚度相等。
在一实施例中，所述光阻挡层13为单层结构，所述光阻挡层13为遮光膜或者吸光膜。也即所述光阻挡层13的材料为遮光材料或者吸光材料。
在一实施方式中，当所述光阻挡层13为遮光膜时，遮光膜的材料为黑色矩阵材料。
在另一实施方式中，所述遮光膜为遮光胶体。
为了防止剥离过程中，损坏柔性衬底，所述遮光胶体与所述第二柔性衬底12之间的粘度小于预设值。
所述遮光胶体的上表面和下表面分别设置有第一胶层和第二胶层，所述遮光胶体通过所述第一胶层与所述第二柔性衬底12粘结，所述遮光胶体通过所述第二胶层与所述第二玻璃基板11粘结，所述第一胶层的粘度小于所述第二胶层的粘度。
当所述光阻挡层13为遮光膜时，所述光阻挡层13的材料中掺入有吸光材料。此时所述光阻挡层13的材料包括遮光材料和吸光材料。
在另一实施例中，所述光阻挡层13为多层结构，所述光阻挡层13的截面结构包括至少一遮光膜和至少一吸光膜。
为了进一步减少第二玻璃基板的反射光，在一实施方式中，如图3所示，所述光阻挡层13的截面结构包括吸光膜131和遮光膜132，所述吸光膜131位于所述第二柔性衬底12和和所述遮光膜132之间。也即吸光膜131靠近第二柔性衬底12，遮光膜132靠近第二玻璃基板11。
为了更好地减少第二玻璃基板的反射光，在另一实施方式中，如图4所示，所述光阻挡层13的截面结构包括两层吸光膜131、133和遮光膜132，遮光膜132位于两层吸光膜131、133之间，其中一吸光膜131靠近第二玻璃基板11，另一吸光膜133靠近第二柔性衬底12。
可以理解的，在其他实施方式中，所述光阻挡层13的截面结构包括两层以上的吸光膜或者两层以上的遮光膜。
其中所述光阻挡层13的厚度范围为30μm-120μm。可以理解的，当所述光阻挡层13为多层结构时，光阻挡层13的厚度为其厚度之和。优选地，所述光阻挡层13的厚度范围为50μm-120μm。更优选地为100-120μm。
该步骤还可包括在第二柔性衬底12上制作色阻层以及透明导电层（图中未示出）。
当然，可以理解的，该光阻挡层13容易与第二柔性衬底12剥离。
由于在第二玻璃基板和第二柔性衬底之间设置光阻挡层，从而防止被第二玻璃基板反射的紫外线再次进入第二柔性衬底中，使得靠近第二柔性衬底中的反应性单体过于集中，导致聚合物墙的宽度变大而遮挡光线，因此提高了开口率。
本发明的柔性液晶显示面板，通过在彩膜基板侧的玻璃基板和柔性衬底之间设置光阻挡层，从而防止被玻璃基板反射的紫外线进入柔性衬底中，避免聚合物墙的宽度变大而遮挡光线，进而提高了开口率。
综上所述，虽然本发明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发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种柔性液晶显示面板，其包括；
    阵列基板，与彩膜基板相对设置，包括第一柔性衬底；
    彩膜基板，包括第二玻璃基板、光阻挡层以及第二柔性衬底，所述光阻挡层位于所述第二玻璃基板和所述第二柔性衬底之间；以及
    多个聚合物墙，设置在所述阵列基板和所述彩膜基板之间，所述聚合物墙是采用具有多个透光部分的光罩对液晶材料进行紫外线照射，使所述液晶材料中的反应性单体发生聚合反应得到的，其中所述透光部分和所述聚合物墙的位置对应，所述聚合物墙的宽度等于所述透光部分的宽度，所述液晶材料包括液晶分子、反应性单体及光引发剂；
    所述光阻挡层为遮光膜或者吸光膜，所述光阻挡层的厚度范围为30μm-120μm。
  2. 根据权利要求1所述的柔性液晶显示面板，其中
    当所述光阻挡层为遮光膜时，所述光阻挡层的材料中掺入有吸光材料。
  3. 根据权利要求1所述的柔性液晶显示面板，其中
    所述光阻挡层的截面结构包括至少一遮光膜和至少一吸光膜。
  4. 根据权利要求3所述的柔性液晶显示面板，其中所述光阻挡层的截面结构包括遮光膜和吸光膜；所述吸光膜位于所述第二柔性衬底和和所述遮光膜之间，所述遮光膜位于所述第二玻璃基板上。
  5. 根据权利要求3所述的柔性液晶显示面板，其中所述光阻挡层的截面结构包括遮光膜和两层吸光膜；其中一层所述吸光膜位于所述第二玻璃基板和和所述遮光膜之间，另外一层所述吸光膜位于所述遮光膜和所述第二柔性衬底之间。
  6. 根据权利要求1所述的柔性液晶显示面板，其中
    所述遮光膜的材料为黑色矩阵材料。
  7. 根据权利要求1所述的柔性液晶显示面板，其中
    所述遮光膜为遮光胶体。
  8. 根据权利要求7所述的柔性液晶显示面板，其中
    所述遮光胶体的上表面和下表面分别设置有第一胶层和第二胶层，所述遮光胶体通过所述第一胶层与所述第二柔性衬底粘结，所述遮光胶体通过所述第二胶层与所述第二玻璃基板粘结，所述第一胶层的粘度小于所述第二胶层的粘度。
  9. 根据权利要求1所述的柔性液晶显示面板，其中所述光阻挡层的厚度范围为50μm-120μm。
  10. 一种柔性液晶显示面板，其包括；
    阵列基板，与彩膜基板相对设置，包括第一柔性衬底；
    彩膜基板，包括第二玻璃基板、光阻挡层以及第二柔性衬底，所述光阻挡层位于所述第二玻璃基板和所述第二柔性衬底之间；以及
    多个聚合物墙，设置在所述阵列基板和所述彩膜基板之间，所述聚合物墙是采用具有多个透光部分的光罩对液晶材料进行紫外线照射，使所述液晶材料中的反应性单体发生聚合反应得到的，其中所述透光部分和所述聚合物墙的位置对应，所述聚合物墙的宽度等于所述透光部分的宽度，所述液晶材料包括液晶分子、反应性单体及光引发剂。
  11. 根据权利要求10所述的柔性液晶显示面板，其中
    所述光阻挡层为遮光膜或者吸光膜。
  12. 根据权利要求11所述的柔性液晶显示面板，其中
    当所述光阻挡层为遮光膜时，所述光阻挡层的材料中掺入有吸光材料。
  13. 根据权利要求10所述的柔性液晶显示面板，其中
    所述光阻挡层的截面结构包括至少一遮光膜和至少一吸光膜。
  14. 根据权利要求13所述的柔性液晶显示面板，其中所述光阻挡层的截面结构包括遮光膜和吸光膜；所述吸光膜位于所述第二柔性衬底和和所述遮光膜之间，所述遮光膜位于所述第二玻璃基板上。
  15. 根据权利要求13所述的柔性液晶显示面板，其中所述光阻挡层的截面结构包括遮光膜和两层吸光膜；其中一层所述吸光膜位于所述第二玻璃基板和和所述遮光膜之间，另外一层所述吸光膜位于所述遮光膜和所述第二柔性衬底之间。
  16. 根据权利要求11所述的柔性液晶显示面板，其中
    所述遮光膜的材料为黑色矩阵材料。
  17. 根据权利要求11所述的柔性液晶显示面板，其中
    所述遮光膜为遮光胶体。
  18. 根据权利要求17所述的柔性液晶显示面板，其中
    所述遮光胶体的上表面和下表面分别设置有第一胶层和第二胶层，所述遮光胶体通过所述第一胶层与所述第二柔性衬底粘结，所述遮光胶体通过所述第二胶层与所述第二玻璃基板粘结，所述第一胶层的粘度小于所述第二胶层的粘度。
  19. 根据权利要求10所述的柔性液晶显示面板，其中
    所述光阻挡层的厚度范围为30μm-120μm。
  20. 根据权利要求19所述的柔性液晶显示面板，其中所述光阻挡层的厚度范围为50μm-120μm。
PCT/CN2018/113632 2018-08-31 2018-11-02 一种柔性液晶显示面板 Ceased WO2020042344A1 (zh)

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