WO2021082102A1 - 显示面板及其制作方法 - Google Patents

显示面板及其制作方法 Download PDF

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Publication number
WO2021082102A1
WO2021082102A1 PCT/CN2019/119434 CN2019119434W WO2021082102A1 WO 2021082102 A1 WO2021082102 A1 WO 2021082102A1 CN 2019119434 W CN2019119434 W CN 2019119434W WO 2021082102 A1 WO2021082102 A1 WO 2021082102A1
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WIPO (PCT)
Prior art keywords
liquid crystal
display area
display panel
crystal layer
array substrate
Prior art date
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Ceased
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PCT/CN2019/119434
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English (en)
French (fr)
Inventor
杨勇
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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Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/772,816 priority Critical patent/US20220128854A1/en
Publication of WO2021082102A1 publication Critical patent/WO2021082102A1/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
    • G02F1/1339—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
    • 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • G02F1/13345—Network or three-dimensional gels
    • 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
    • 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
    • G02F1/1341—Filling or closing of cells
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • 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

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a display panel and a manufacturing method thereof.
  • full-screen technology has become the mainstream technology in the mobile phone market.
  • LTPS low-temperature polycrystalline silicon
  • full-screen technology has become the mainstream technology in the mobile phone market.
  • the bangs full-screen and beauty-tip full-screen are derived from the goal of full-screen And blind hole full-screen technologies emerge in endlessly, and its ever-increasing mobile phone screen-to-body ratio continues to push the full-screen technology to the extreme.
  • polymer network liquid crystal (Polymer Network LCD) is usually used in the camera area.
  • Liquid Crystal, PNLC for short) /Polymer dispersed liquid crystal (Polymer Dispersed Liquid Crystal (PDLC for short) liquid crystal box which enables the liquid crystal box to control the photographing and hiding of the camera device.
  • the liquid crystal box and the liquid crystal box in the main screen display area need to be separated by sealant, but the sealant will be in the camera display area and Black borders are created between the display areas of the main screen and affect the display effect.
  • the embodiments of the present disclosure provide a display panel and a manufacturing method thereof, which can effectively solve the black border at the junction of the first display area (for example, the main screen display area) and the second display area (for example, the camera display area) problem.
  • an embodiment of the present disclosure provides a display panel including: a liquid crystal layer; the liquid crystal layer includes a first liquid crystal layer and a second liquid crystal layer, wherein the first liquid crystal layer passes through a barrier wall
  • the area where the first liquid crystal layer is located corresponds to a first display area of the display panel, and the area where the second liquid crystal layer is located corresponds to a second display area of the display panel.
  • the width of the vertical projection of the retaining wall in the direction of the liquid crystal layer is less than a preset width threshold.
  • the material of the retaining wall is non-polar or weakly polar aromatic organic molecules.
  • aromatic organic molecules are methacrylate oligomers and 4,4'-bis[6-(acryloxy)hexyloxy]biphenyl.
  • the display panel further includes: an array substrate; and a color filter substrate, the color filter substrate and the array substrate are disposed opposite to each other; the array substrate and the color filter substrate are sandwiched between the array substrate and the color filter substrate.
  • Liquid crystal layer The liquid crystal layer is divided into the first display area and the second display area by the barrier wall, wherein the area enclosed by the barrier wall is the second display area.
  • the shape enclosed by the retaining wall is one of a circle, a semi-arc and a trapezoid.
  • the preset width threshold does not exceed 50 microns.
  • an embodiment of the present disclosure also provides a method for manufacturing a display panel, including the following steps: providing an array substrate; filling a first liquid crystal in a first display area of the array substrate to form a first liquid crystal Layer; coating a polymer monomer at the junction of the first display area and the second display area of the array substrate; placing the array substrate in an electric field; exposing the junction to polymerize the organic molecules Reacting to form a retaining wall; and filling the second display area with a second liquid crystal to form a second liquid crystal layer.
  • the organic molecules are non-polar or weakly polar aromatic organic molecules, and the aromatic organic molecules are methacrylate oligomers and 4,4'-bis[6-(acryloyloxy ⁇ )hexyloxy]biphenyl.
  • the method further includes: removing the first liquid crystal in the second display area.
  • the conditions for controlling the polymerization reaction include: the concentration of the polymer monomer, the temperature of the polymerization reaction, the time of the polymerization reaction, the intensity of light to the polymer monomer, and the angle of light.
  • the advantage of the present disclosure is that the present disclosure uses a polymer (ie organic molecule) barrier method to replace the existing frame sealant method to isolate the first display area (ie the main screen display area) and the second display area (ie the camera device display). Area) in the liquid crystal molecules, and use the photomask exposure method to polymerize to form the shape of the barrier wall, according to the difference between the first display area and the second display area to form the corresponding barrier wall shape, and control the exposure time and alignment during the polymerization reaction.
  • a polymer ie organic molecule
  • the effect of the black border at the junction of the display area and the second display area (the black border caused by the traditional frame sealant being too wide).
  • FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the disclosure.
  • FIG. 2 is a schematic diagram of a top view structure of a display panel provided by an embodiment of the disclosure.
  • FIG. 3 is a schematic flow chart of the steps of a method for manufacturing a display panel provided by an embodiment of the disclosure.
  • FIG. 4 is a process flow diagram corresponding to step S310 shown in FIG. 3.
  • FIG. 5 is a process flow diagram corresponding to step S320 shown in FIG. 3.
  • FIG. 6 is a process flow diagram corresponding to step S330 shown in FIG. 3.
  • FIG. 7 is a process flow diagram corresponding to step S340 shown in FIG. 3.
  • FIG. 8 is a process flow diagram corresponding to step S350 shown in FIG. 3.
  • FIG. 9 is a process flow diagram corresponding to step S360 shown in FIG. 3.
  • FIG. 10 is a flowchart showing subsequent steps of step S340 in another embodiment.
  • Figure 11 is the molecular structural formula of 4,4'-bis[6-(acryloyloxy)hexyloxy]biphenyl provided by the disclosed embodiments.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, thereby limiting the terms “first” and “The feature of “second” may explicitly or implicitly include one or more of the features.
  • plurality means two or more than two, unless explicitly and specifically defined otherwise.
  • the display panel 20 includes: an array substrate 6, a color filter substrate 5, and a liquid crystal layer 10.
  • the array substrate 6 and the color filter substrate 5 are arranged in a box and form a display area of the display panel 20.
  • the liquid crystal layer 10 includes a first liquid crystal layer 1 and a second liquid crystal layer 2, wherein the first liquid crystal layer 1 is spaced apart from the second liquid crystal layer 2 by a barrier 3.
  • the area where the first liquid crystal layer 1 is located corresponds to a first display area of the display panel 20, and the area where the second liquid crystal layer 2 is located corresponds to a second display area of the display panel 20, wherein the first display area
  • One display area is the main screen display area
  • the second display area is the display area of the camera 4 (ie, the secondary screen display area)
  • the first display area and the second display area constitute the display area of the display panel.
  • the light source module for providing the light source for the second display area includes: a light guide ring 16, a light enhancement layer 9, a diffusion layer 11 and a light emitting layer 12.
  • the diffusion layer 11 is disposed on the light-emitting layer 12, and the brightness enhancement layer 9 is disposed on the diffusion layer 11.
  • the light guide ring 16 is embedded in the middle of the light enhancement layer 9, the diffusion layer 11 and the light emitting layer 12.
  • the light-enhancing layer 9 is used to increase the brightness of light
  • the diffusion layer 11 is used to be an average light distribution.
  • the light-emitting layer 12 adopts mini-LED as a light source, but it is not limited thereto.
  • the light guide ring 16 adopts, for example, a truncated cone structure to ensure that the light from the mini-LED can enter the light guide ring.
  • the light-emitting layer 12 is disposed on an imaging device 4, and the imaging device 4 can be installed in a display device (for example, a mobile phone).
  • the material of the retaining wall 3 is non-polar or weakly polar aromatic organic molecules.
  • the aromatic organic molecules include methacrylate oligomers and 4, 4'-bis[6-(acryloyloxy)hexyloxy]biphenyl, the molecular structure of the 4,4'-bis[6-(acryloyloxy)hexyloxy]biphenyl is shown in Figure 11 Show.
  • the aromatic organic molecules are not limited to this.
  • the shape of the retaining wall 3 is one of a circle, a semi-arc and a trapezoid. Specifically, when the display area of the display panel adopts a blind hole screen, a circular retaining wall 3 needs to be formed at the junction of the first display area and the second display area. When the display area of the display panel adopts a water drop screen, a half-curved retaining wall 3 needs to be formed at the junction of the first display area and the second display area. When the display area of the display panel adopts a cut screen, a trapezoidal retaining wall 3 needs to be formed at the junction of the first display area and the second display area. Of course, when the display panel adopts different screens, the boundary of the first liquid crystal layer 1 and the second liquid crystal layer 2 needs to form a corresponding shape of the retaining wall 3 accordingly.
  • the width of the vertical projection of the retaining wall 3 in the direction of the liquid crystal layer is less than a preset width threshold. In this embodiment, it is, for example, 50 microns. It has been found through research that the human eye cannot distinguish a retaining wall with a thickness of less than 300 microns3. Therefore, it is possible to visually eliminate the black border (black border caused by the excessive width of the traditional frame sealant) at the junction of the first display area and the second display area.
  • an embodiment of the present disclosure also provides a step flow chart of a manufacturing method of a display panel, including the following steps:
  • step S310 an array substrate 6 is provided.
  • step S320 fill the first liquid crystal 7 in the first display area (the area where the first liquid crystal layer 1 is located) of the array substrate 6 to form a first liquid crystal layer 1.
  • the first liquid crystal 7 is a common liquid crystal material, and the first display area is the main screen display area.
  • step S330 coating a polymer monomer at the junction of the first display area and the second display area (the area where the second liquid crystal layer 2 is located) of the array substrate 6.
  • the second display area is the display area of the camera 4 (ie, the secondary screen display area).
  • step S340 placing the array substrate 1 in an electric field.
  • An electric field force is applied to the first liquid crystal 7 through a specific electric field, and the material of the barrier 3 is non-polar or weakly polar molecules, which is less affected by the electric field. Therefore, only the first liquid crystal 7 receives the electric field force and is moved from the second display area to the first display area by the electric field force.
  • step S350 exposing the junction to cause the polymer monomer to undergo polymerization reaction to form a retaining wall 3.
  • the ultraviolet exposure operation is performed at the junction of the first display area and the second display area of the display panel through the photomask 15. Then, through the exposure operation, the polymer monomer is polymerized.
  • the conditions of the polymerization reaction include controlling the concentration of the polymer monomer, the temperature of the polymerization reaction, the time of the polymerization reaction, the intensity of light to the polymer monomer and the angle of light (for example, light is diffracted within a range of 10°) to prepare Retaining walls with a crosslinking degree of more than 90% and a thickness of less than 50 microns can visually eliminate the black border (black border caused by the excessive width of the traditional frame sealant) at the junction of the first display area and the second display area.
  • step S351 may be performed at the same time as step S350 is performed: removing the first liquid crystal 7 in the second display area. This step is optional.
  • the step of exposing the junction to polymerize the organic molecules to form a retaining wall 3 further includes: removing the first liquid crystal 7 in the second display area.
  • step S350 during the polymerization reaction, a small amount of the first liquid crystal flow 7 enters the second display area. Therefore, step S351 can be performed to further remove the first liquid crystal 7 in the second display area. After step S351 is executed, step S350 can be continued.
  • step S360 filling the second display area with a second liquid crystal 8 to form a second liquid crystal layer 2.
  • the second liquid crystal 8 includes a polymer network liquid crystal (Polymer Network Liquid Crystal) Liquid Crystal, referred to as PNLC) or polymer dispersed liquid crystal (Polymer Dispersed Liquid Crystal, PDLC for short), but not limited to this.
  • PNLC Polymer Network Liquid Crystal
  • PDLC Polymer Dispersed Liquid Crystal
  • the advantage of the present disclosure is that the present disclosure uses a polymer (ie, organic molecule) barrier instead of conventional frame sealant to isolate the first display area (ie, the main screen display area) and the second display area (ie, the camera device display area).
  • the liquid crystal molecules are polymerized to form a barrier wall shape by using a photomask exposure method, and the corresponding barrier wall shape is formed according to the boundary difference between the first display area and the second display area, and the exposure time is controlled during the polymerization reaction and the polymer monomer is controlled.
  • the effect of the black border at the junction of the second display area (the black border caused by the traditional frame sealant being too wide).
  • the subject of this disclosure can be manufactured and used in industry, and has industrial applicability.

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

Abstract

一种显示面板(20)及其制作方法，通过采用聚合物挡墙(3)方式而非现有的封框胶方式以隔离第一显示区和第二显示区中的液晶分子，并且采用光罩(15)曝光方式以聚合形成挡墙(3)形状，从而实现挡墙(3)的厚度小于50微米，并且在视觉上消除第一显示区和第二显示区交界处的黑边效应。

Description

显示面板及其制作方法 技术领域
本揭示涉及显示技术领域，尤其涉及一种显示面板及其制作方法。
 背景技术
随着低温多晶硅 (Low-temperature polycrystalline silicon，简称LTPS)小尺寸显示技术的不断发展推进，全面屏技术已成为手机市场的主流技术，以全面屏为目标衍生出来的刘海全面屏、美人尖全面屏及盲孔全面屏技术层出不穷，其不断提升的手机屏占比不断地将全面屏技术推向极致。
然而，以上三种技术均需要将部分区域进行挖孔或异形化处理，以使得摄像头的位置区域暴露出，并供拍照使用，因此无法实现真正的全屏显示效果。为此，人们也试图通过将摄像头区域具有显示功能，以进一步提升屏占比。为了单独控制摄像头区域的显示功能，通常在摄像头区域采用聚合物网络液晶(Polymer Network Liquid Crystal，简称PNLC) /聚合物分散液晶（Polymer Dispersed Liquid Crystal，简称PDLC）的液晶盒，使得该液晶盒控制摄像装置的拍照与隐藏，该液晶盒与主屏显示区的液晶盒之间需要通过框胶隔离，但是框胶会在摄像头显示区和主屏显示区之间造成黑边，并且影响显示效果。
有鉴于此，亟需提供一种方式以解决上述问题。
 技术问题
为了单独控制摄像头区域的显示功能，通常在摄像头区域采用聚合物网络液晶(Polymer Network Liquid Crystal，简称PNLC) /聚合物分散液晶（Polymer Dispersed Liquid Crystal，简称PDLC）的液晶盒，使得该液晶盒控制摄像装置的拍照与隐藏，该液晶盒与主屏显示区的液晶盒之间需要通过框胶隔离，但是框胶会在摄像头显示区和主屏显示区之间造成黑边，并且影响显示效果。
 技术解决方案
为了解决上述问题，本揭示实施例提供了一种显示面板及其制作方法，能够有效解决第一显示区（例如主屏显示区）和第二显示区（例如摄像装置显示区）交界处的黑边问题。
根据本揭示的一方面，本揭示实施例提供了一种显示面板，包括：一液晶层；所述液晶层包括第一液晶层和第二液晶层，其中所述第一液晶层通过一挡墙与所述第二液晶层间隔设置；所述第一液晶层所在区域与所述显示面板的一第一显示区对应，所述第二液晶层所在区域与所述显示面板的一第二显示区对应；所述挡墙在所述液晶层方向上的垂直投影的宽度小于一预设宽度阈值。
进一步地，所述挡墙的材料为非极性或弱极性的芳香类有机分子。
进一步地，所述芳香类有机分子为甲基丙烯酸酯类齐聚物和4,4’-二[6-(丙烯酰氧基)己氧基]联苯。
进一步地，所述显示面板还包括：一阵列基板；以及一彩膜基板，所述彩膜基板与所述阵列基板相对设置；所述阵列基板与所述彩膜基板之间夹设有所述液晶层；通过所述挡墙将所述液晶层划分为所述第一显示区和所述第二显示区，其中所述挡墙围成的区域为所述第二显示区。
进一步地，所述挡墙围成的形状为圆形、半弧形及梯形中的其中一种。
进一步地，所述预设宽度阈值不超过50微米。
根据本揭示的另一方面，本揭示实施例还提供一种显示面板的制作方法，包括以下步骤：提供一阵列基板；在所述阵列基板的第一显示区填充第一液晶形成一第一液晶层；在所述阵列基板的第一显示区与第二显示区的交界处涂布聚合物单体；将所述阵列基板置于电场中；对所述交界处进行曝光使所述有机分子聚合反应形成一挡墙；以及在所述第二显示区填充第二液晶形成第二液晶层。
进一步地，所述有机分子为非极性或弱极性的芳香类有机分子，所述芳香类有机分子为甲基丙烯酸酯类齐聚物和4,4’-二[6-(丙烯酰氧基)己氧基]联苯。
进一步地，在对所述交界处进行曝光使所述有机分子聚合反应形成一挡墙步骤中，进一步包括：移除所述第二显示区的第一液晶。
进一步地，控制所述聚合反应的条件包括：聚合物单体的浓度、聚合反应的温度、聚合反应的时间、对聚合物单体的光照强度及光照的角度。
 有益效果
本揭示的优点在于，本揭示通过采用聚合物（即有机分子）挡墙方式替代现有的封框胶方式来隔离第一显示区（即主屏显示区）和第二显示区（即摄像装置显示区）中液晶分子，并且采用光罩曝光方式以聚合形成挡墙形状，根据不同的第一显示区和第二显示区边界差异形成相应的挡墙形状，在聚合反应过程中控制曝光时间、对聚合物单体的光照强度及光照的角度、聚合反应时间及聚合反应的温度等参数，从而制备出交联度超过90%、且厚度小于50微米的挡墙，以实现在视觉上消除第一显示区和第二显示区交界处的黑边（传统封框胶过宽导致的黑边）效应。
 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为本揭示实施例所提供的一种显示面板的结构示意图。
图2为本揭示实施例所提供的一种显示面板的俯视结构示意图。
图3为本揭示实施例所提供的一种显示面板制作方法的步骤流程示意图。
图4为图3所示的步骤S310对应的工艺流程图。
图5为图3所示的步骤S320对应的工艺流程图。
图6为图3所示的步骤S330对应的工艺流程图。
图7为图3所示的步骤S340对应的工艺流程图。
图8为图3所示的步骤S350对应的工艺流程图。
图9为图3所示的步骤S360对应的工艺流程图。
图10为本揭示另一实施例中步骤S340的后继步骤的流程图。
图11为本揭示实施例所提供的4,4’-二[6-(丙烯酰氧基)己氧基]联苯分子结构式。
具体实施方式
下面将结合本揭示实施例中的附图，对本揭示实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本揭示一部分实施例，而不是全部的实施例，基于本揭示中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本揭示保护的范围。
在本揭示的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本揭示和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本揭示的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量，由此限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征，在本揭示的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
如图1所示，为本揭示实施例提供的一种显示面板的结构示意图。所述显示面板20包括：阵列基板6、彩膜基板5、液晶层10。
所述阵列基板6与所述彩膜基板5对盒设置，并形成显示面板20的显示区域。
结合参阅图2，所述液晶层10包括第一液晶层1和第二液晶层2，其中所述第一液晶层1通过一挡墙3与所述第二液晶层2间隔设置。所述第一液晶层1所在区域与所述显示面板20的一第一显示区对应，所述第二液晶层2所在区域与所述显示面板20的一第二显示区对应，其中所述第一显示区为主屏显示区，第二显示区为摄像装置4显示区（即副屏显示区），所述第一显示区和所述第二显示区构成所述显示面板的显示区。
在本实施例中，为第二显示区提供光源的光源模组包括：导光环16、增光层9、扩散层11及发光层12。具体地，所述扩散层11设置于发光层12上，所述增光层9设置于扩散层11上。所述导光环16内嵌于增光层9、扩散层11及发光层12中间。所述增光层9用于提高光照亮度，所述扩散层11用于是光线分布均线。进一步，所述发光层12采用mini-LED作为光源，但不限于此。在本实施例中，所述导光环16采用例如圆台结构，用于保证mini-LED的光线可进入导光环。另外，需说明的，所述发光层12设置在一摄像装置4上，该摄像装置4可安装于一显示装置（例如手机）内。
结合参阅图11，所述挡墙3的材料为非极性或弱极性的芳香类有机分子，在本实施例中，所述芳香类有机分子包括甲基丙烯酸酯类齐聚物和4,4’-二[6-(丙烯酰氧基)己氧基]联苯，所述4,4’-二[6-(丙烯酰氧基)己氧基]联苯其分子结构式如图11所示。但在其它部分实施中，所述芳香类有机分子不限于此。
所述挡墙3的形状为圆形、半弧形及梯形中的其中一种。具体地，当所述显示面板的显示区采用盲孔屏时，在第一显示区和第二显示区的交界处需成型一圆形挡墙3。当所述显示面板的显示区采用水滴屏时，在第一显示区和第二显示区的交界处需成型一半弧形挡墙3。当所述显示面板的显示区采用切口屏时，在第一显示区和第二显示区的交界处需成型一型梯形挡墙3。当然，当所述显示面板采用不同的屏时，第一液晶层1和第二液晶层2交界处需相应地形成对应的挡墙3形状。
所述挡墙3在所述液晶层方向上的垂直投影的宽度（如图8中标号d所示的距离）小于一预设宽度阈值。在本实施例中，例如为50微米。经研究发现，人眼无法分辨厚度为300微米以下的挡墙3。因此，能够从视觉上消除所述第一显示区和所述第二显示区交界处的黑边（传统封框胶过宽导致的黑边）效应。
如图3所示，为本揭示实施例还提供一种显示面板的制作方法的步骤流程图，包括以下步骤：
结合参阅图4，步骤S310：提供一阵列基板6。
结合参阅图5，步骤S320：在所述阵列基板6的第一显示区（第一液晶层1所在区）填充第一液晶7形成一第一液晶层1。
所述第一液晶7为普通的液晶材料，第一显示区为主屏显示区。
结合参阅图6，步骤S330：在所述阵列基板6的第一显示区与第二显示区（第二液晶层2所在区）的交界处涂布聚合物单体。
所述第二显示区为摄像装置4显示区（即副屏显示区）。
结合参阅图7，步骤S340：将所述阵列基板1置于电场中。
通过特定的电场对所述第一液晶7施加一电场力，而挡墙3的材料为非极性或弱极性分子，受电场影响较小。因此，仅第一液晶7受到电场力的作用，被电场力从第二显示区内移动至第一显示区。
结合参阅图8，步骤S350：对所述交界处进行曝光使所述聚合物单体发生聚合反应形成一挡墙3。
通过光罩15在所述显示面板的第一显示区与第二显示区的交界处进行紫外曝光操作。于是，通过曝光操作，使得所述聚合物单体发生聚合反应。
所述聚合反应的条件包括控制聚合物单体的浓度、聚合反应的温度、聚合反应的时间、对聚合物单体的光照强度及光照的角度（例如10°范围内衍射出光），从而制备出交联度超过90%、且厚度小于50微米的挡墙，以实现在视觉上消除第一显示区和第二显示区交界处的黑边（传统封框胶过宽导致的黑边）效应。
结合参阅图10，为步骤S340的后继步骤的流程图。在执行完步骤S340之后，可以在执行步骤S350的同时，执行步骤S351：移除所述第二显示区的第一液晶7。该步骤为可选步骤。
具体地，在对所述交界处进行曝光使所述有机分子聚合反应形成一挡墙3步骤中，进一步包括：移除所述第二显示区的第一液晶7。
在步骤S350中，聚合反应进行时，会有少量的第一液晶流7入第二显示区，因此可以通过执行步骤S351，以进一步移除第二显示区的第一液晶7。当执行完步骤S351之后，可以继续执行步骤S350。
结合参阅图9，步骤S360：在所述第二显示区填充第二液晶8形成第二液晶层2。
其中，所述第二液晶8包括聚合物网络液晶(Polymer Network Liquid Crystal，简称PNLC) 或聚合物分散液晶（Polymer Dispersed Liquid Crystal，简称PDLC），但不限于此。
本揭示的优点在于，本揭示通过采用聚合物（即有机分子）挡墙方式替代常规封框胶来隔离第一显示区（即主屏显示区）和第二显示区（即摄像装置显示区）中液晶分子，并且采用光罩曝光方式以聚合形成挡墙形状，根据不同的第一显示区和第二显示区边界差异形成相应的挡墙形状，在聚合反应过程中控制曝光时间、对聚合物单体的光照强度及光照的角度、聚合反应时间及聚合反应的温度等参数，从而制备出交联度超过90%、且厚度小于50微米的挡墙，以实现在视觉上消除第一显示区和第二显示区交界处的黑边（传统封框胶过宽导致的黑边）效应。
综上所述，虽然本揭示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揭示，本领域的普通技术人员，在不脱离本揭示的精神和范围内，均可作各种更动与润饰，因此本揭示的保护范围以权利要求界定的范围为准。
 工业实用性
本揭示的主题可以在工业中制造和使用，具备工业实用性。

Claims (10)

  1. 一种显示面板，其包括：
    一液晶层；所述液晶层包括第一液晶层和第二液晶层，其中所述第一液晶层通过一挡墙与所述第二液晶层间隔设置；所述第一液晶层所在区域与所述显示面板的一第一显示区对应，所述第二液晶层所在区域与所述显示面板的一第二显示区对应；
    所述挡墙在所述液晶层方向上的垂直投影的宽度小于一预设宽度阈值。
  2. 如权利要求1所述的显示面板，其中所述挡墙的材料为非极性或弱极性的芳香类有机分子。
  3. 如权利要求2所述的显示面板，其中所述芳香类有机分子为甲基丙烯酸酯类齐聚物和4,4’-二[6-(丙烯酰氧基)己氧基]联苯。
  4. 如权利要求1所述的显示面板，其中还包括：
    一阵列基板；以及
    一彩膜基板，所述彩膜基板与所述阵列基板相对设置；
    所述阵列基板与所述彩膜基板之间夹设有所述液晶层；通过所述挡墙将所述液晶层划分为所述第一显示区和所述第二显示区，其中所述挡墙围成的区域为所述第二显示区。
  5. 如权利要求1所述的显示面板，其中所述挡墙围成的形状为圆形、半弧形及梯形中的其中一种。
  6. 如权利要求1所述的显示面板，其中所述预设宽度阈值不超过50微米。
  7. 一种显示面板的制作方法，其包括以下步骤：
    提供一阵列基板；
    在所述阵列基板的第一显示区填充第一液晶形成一第一液晶层；
    在所述阵列基板的第一显示区与第二显示区的交界处涂布聚合物单体；
    将所述阵列基板置于电场中；
    对所述交界处进行曝光使所述聚合物单体聚合反应形成一挡墙；以及
    在所述第二显示区填充第二液晶形成第二液晶层。
  8. 如权利要求7所述的显示面板制作方法，其中所述聚合物单体为非极性或弱极性的芳香类有机分子，所述芳香类有机分子为甲基丙烯酸酯类齐聚物和4,4’-二[6-(丙烯酰氧基)己氧基]联苯。
  9. 如权利要求7所述的显示面板制作方法，其中在对所述交界处进行曝光使所述聚合物单体聚合反应形成一挡墙步骤中，进一步包括：
    移除所述第二显示区的第一液晶。
  10. 如权利要求7所述的显示面板制作方法，其中控制所述聚合反应的条件包括：聚合物单体的浓度、聚合反应的温度、聚合反应的时间、对聚合物单体的光照强度及光照的角度。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929960A (en) * 1997-10-17 1999-07-27 Kent State University Method for forming liquid crystal display cell walls using a patterned electric field
KR20150074543A (ko) * 2013-12-24 2015-07-02 엘지디스플레이 주식회사 액정표시장치 및 그 제조방법
CN105785667A (zh) * 2016-05-18 2016-07-20 深圳市华星光电技术有限公司 曲面液晶显示面板的制作方法及曲面液晶显示面板
CN107991814A (zh) * 2017-12-25 2018-05-04 深圳市华星光电技术有限公司 一种液晶显示面板及其制备方法
CN109651543A (zh) * 2018-12-21 2019-04-19 深圳市华星光电半导体显示技术有限公司 液晶盒及其制造方法、光聚合性组合物
CN110221472A (zh) * 2019-05-14 2019-09-10 武汉华星光电技术有限公司 液晶显示面板及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4047132B2 (ja) * 2002-10-21 2008-02-13 キヤノン株式会社 表示素子の製造方法
CN103376599A (zh) * 2012-04-19 2013-10-30 群康科技(深圳)有限公司 显示装置及其制造方法
JP2015025905A (ja) * 2013-07-25 2015-02-05 株式会社ジャパンディスプレイ 液晶表示装置
CN105911773B (zh) * 2016-06-27 2019-05-07 京东方科技集团股份有限公司 封框胶组合物、显示面板及制备方法、显示装置
CN108681134A (zh) * 2018-03-29 2018-10-19 上海天马微电子有限公司 显示面板及其制作方法和显示装置
CN208834050U (zh) * 2018-09-30 2019-05-07 Oppo（重庆）智能科技有限公司 显示屏组件及电子设备
CN110618549B (zh) * 2018-12-03 2024-10-29 鸿富锦精密工业（深圳）有限公司 显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929960A (en) * 1997-10-17 1999-07-27 Kent State University Method for forming liquid crystal display cell walls using a patterned electric field
KR20150074543A (ko) * 2013-12-24 2015-07-02 엘지디스플레이 주식회사 액정표시장치 및 그 제조방법
CN105785667A (zh) * 2016-05-18 2016-07-20 深圳市华星光电技术有限公司 曲面液晶显示面板的制作方法及曲面液晶显示面板
CN107991814A (zh) * 2017-12-25 2018-05-04 深圳市华星光电技术有限公司 一种液晶显示面板及其制备方法
CN109651543A (zh) * 2018-12-21 2019-04-19 深圳市华星光电半导体显示技术有限公司 液晶盒及其制造方法、光聚合性组合物
CN110221472A (zh) * 2019-05-14 2019-09-10 武汉华星光电技术有限公司 液晶显示面板及其制备方法

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