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WO2020019469A1 - 液晶显示面板及其制作方法 - Google Patents

液晶显示面板及其制作方法 Download PDF

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Publication number
WO2020019469A1
WO2020019469A1 PCT/CN2018/107155 CN2018107155W WO2020019469A1 WO 2020019469 A1 WO2020019469 A1 WO 2020019469A1 CN 2018107155 W CN2018107155 W CN 2018107155W WO 2020019469 A1 WO2020019469 A1 WO 2020019469A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
substrate
self
aligned
display panel
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/CN2018/107155
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English (en)
French (fr)
Inventor
尹炳坤
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
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/313,047 priority Critical patent/US20200033679A1/en
Publication of WO2020019469A1 publication Critical patent/WO2020019469A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line

Definitions

  • the present invention relates to the field of display technology, and in particular, to a liquid crystal display panel and a manufacturing method thereof.
  • liquid crystal display devices Liquid Crystal Display, LCD
  • cathode ray tube Cathode Ray Tube, CRT
  • the liquid crystal display device has many advantages such as a thin body, power saving, and no radiation, and has been widely used.
  • a liquid crystal display panel includes a color filter (CF) substrate, a thin film transistor (TFT) array substrate, a liquid crystal (LC) and a sealant sandwiched between the color film substrate and the thin film transistor array substrate.
  • Frame (Sealant) composition The working principle of a liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates. There are many small vertical and horizontal wires in the middle of the two glass substrates. The liquid crystal molecules are changed in direction by power on or off, and the light of the backlight module is changed. Refracted to produce a picture.
  • an alignment film In order to arrange the liquid crystal molecules in a specific rotation direction, an alignment film needs to be made inside the TFT array substrate and the color filter substrate.
  • the alignment film can be used to limit the alignment state of the liquid crystal molecules.
  • the traditional method for manufacturing an alignment film is to form a PI (Polyimide, polyimide) solution in which a polymer compound is dissolved on a substrate surface of the alignment film by transferring or spraying, and then baking the PI liquid to form an alignment film.
  • the alignment film needs to cover an effective display area (AA) of the liquid crystal display panel.
  • An object of the present invention is to provide a liquid crystal display panel capable of implementing a narrow frame design.
  • Another object of the present invention is to provide a method for manufacturing a liquid crystal display panel, which can realize a narrow frame design.
  • the present invention first provides a liquid crystal display panel including a first substrate and a second substrate opposite to each other, a self-aligned liquid crystal layer disposed between the first substrate and the second substrate, and a first substrate and A sealant between the second substrates and located outside the self-aligned liquid crystal layer;
  • the self-aligned liquid crystal layer includes two self-aligned layers respectively disposed on a first substrate and a second substrate, and a liquid crystal molecular layer provided between the two self-aligned layers.
  • the first substrate includes a first substrate, a plurality of color resist blocks arranged on the side of the first substrate near the self-aligned liquid crystal layer and arranged in an array, and a plurality of color resistance blocks arranged on the first substrate near the self-aligned liquid crystal layer and located A black matrix between adjacent color-blocking blocks and outside the color-blocking block array.
  • the first substrate includes an effective display area and a peripheral area outside the effective display area.
  • the plurality of color resistance blocks are all located in the effective display area.
  • the black matrix covers the peripheral area.
  • the second substrate includes a second substrate, and metal wiring provided on a side of the second substrate near the self-aligned liquid crystal layer; the metal wiring extends from an effective display area to a peripheral area;
  • the frame adhesive is disposed in the peripheral region; the frame adhesive covers the metal wiring and extends to the end of the peripheral region.
  • the first substrate further includes a protective layer covering a plurality of color resist blocks and a black matrix.
  • the invention also provides a method for manufacturing a liquid crystal display panel, which includes the following steps:
  • Step S1 providing a first substrate and a second substrate
  • Step S2 forming a sealant between the first substrate and the second substrate and filling a self-aligned liquid crystal material inside the sealant to obtain a liquid crystal cell;
  • Step S3 baking the liquid crystal cell, the baking temperature is higher than the clearing point temperature of the self-aligned liquid crystal material
  • Step S4 Keep the temperature of the liquid crystal cell higher than the clearing point temperature of the self-aligned liquid crystal material, and irradiate the liquid crystal cell with ultraviolet light to form a self-aligned liquid crystal formed between the first substrate and the second substrate and located inside the frame rubber Floor;
  • the self-aligned liquid crystal layer includes two self-aligned layers respectively disposed on a first substrate and a second substrate, and a liquid crystal molecular layer provided between the two self-aligned layers.
  • step S2 a liquid crystal injection method or a liquid crystal dropping method is used to fill a self-aligned liquid crystal material inside the sealant.
  • the manufacturing method of the liquid crystal display panel further includes step S5, cooling the liquid crystal cell to room temperature, and continuing to irradiate the liquid crystal cell with ultraviolet light.
  • the first substrate includes a first substrate, a plurality of color resist blocks arranged on one side of the first substrate and arranged in an array, and a color resist block provided on one side of the first substrate and located on an adjacent color resist block.
  • the first substrate includes an effective display area and a peripheral area outside the effective display area;
  • the blocks are all located in an effective display area; the black matrix covers a peripheral area;
  • the second substrate includes a second substrate and a metal wiring provided on one side of the second substrate;
  • step S2 a sealant is formed between a side provided with a protective layer on the first substrate and a side provided with metal wiring on the second substrate; after the step S2 is completed, the metal wiring is effectively displayed
  • the area extends to the peripheral area; the frame adhesive covers the metal wiring and extends to the end of the peripheral area.
  • the frame glue is located in the peripheral area, and the frame glue covers the metal wiring and extends to the end of the peripheral area.
  • step S4 the liquid crystal cell is irradiated with polarized ultraviolet light.
  • the liquid crystal display panel of the present invention includes a first substrate and a second substrate opposite to each other, a self-aligned liquid crystal layer provided between the first substrate and the second substrate, and a first substrate and a second substrate.
  • the sealant is located between the self-aligned liquid crystal layers, and the self-aligned liquid crystal layer includes two self-aligned layers respectively disposed on the first substrate and the second substrate, and a liquid crystal molecular layer provided between the two self-aligned layers.
  • the liquid crystal cell is baked and subjected to ultraviolet light irradiation.
  • the self-aligned liquid crystal material is aligned to form a self-aligned liquid crystal layer.
  • the range and position accuracy of the self-aligned liquid crystal layer in the self-aligned liquid crystal layer are controlled by the area coated by the frame adhesive, which can effectively improve the uniformity of the thickness of the self-aligned layer and the coating
  • the position accuracy of the cloth is conducive to the realization of narrow border design.
  • the manufacturing method of the liquid crystal display panel of the present invention can realize a narrow frame design.
  • FIG. 1 is a schematic structural diagram of a liquid crystal display panel of the present invention
  • FIG. 2 is a flowchart of a manufacturing method of a liquid crystal display panel according to the present invention.
  • FIG. 3 is a schematic diagram of step S1 of a manufacturing method of a liquid crystal display panel of the present invention.
  • FIG. 4 is a schematic diagram of step S2 of the method for manufacturing a liquid crystal display panel of the present invention.
  • a liquid crystal display panel of the present invention includes a first substrate 10 and a second substrate 20 opposite to each other, a self-aligned liquid crystal layer 30 provided between the first substrate 10 and the second substrate 20, and a first substrate A sealant 40 between 10 and the second substrate 20 and located outside the self-aligned liquid crystal layer 30.
  • the self-aligned liquid crystal layer 30 includes two self-aligned layers 31 provided on the first substrate 10 and the second substrate 20 and a liquid crystal molecular layer 32 provided between the two self-aligned layers 31.
  • the first substrate 10 includes a first substrate 11, a plurality of color resist blocks 12 arranged on the side of the first substrate 11 near the self-aligned liquid crystal layer 30 and arranged in an array.
  • the first substrate 11 is a black matrix 13 near the side of the self-aligned liquid crystal layer 30 and between the adjacent color resist blocks 12 and outside the array of the color resist blocks 12.
  • the first substrate 11 includes an effective display area 111 and a peripheral area 112 located outside the effective display area 111.
  • the plurality of color resist blocks 12 are all located in the effective display area 111.
  • the black matrix 13 covers the peripheral area 112.
  • the plurality of color resist blocks 12 include a red color resist block, a green color resist block, and a blue color resist block arranged in order.
  • the color resist block 12 may further include color resist blocks of other colors, such as a yellow color resist block. .
  • the second substrate 20 includes a second substrate 21 and a metal wiring 22 disposed on a side of the second substrate 21 near the self-aligned liquid crystal layer 30.
  • the metal wiring 22 extends from the effective display area 111 to the peripheral area 112.
  • the sealant 40 is disposed in the peripheral region 112.
  • the sealant 40 covers the metal wiring 22 and extends to the end of the peripheral region 112.
  • the first substrate 10 further includes a protective layer 14 covering a plurality of color resist blocks 12 and the black matrix 13. A side of the frame adhesive 40 near the first substrate 10 is connected to the protective layer 14.
  • a self-aligned liquid crystal layer 30 including a self-aligned layer 31 and a liquid crystal molecular layer 32 is provided between the first substrate 10 and the second substrate 20, and the first substrate 10 and the second substrate
  • a frame adhesive 40 is provided outside the self-aligning liquid crystal layer 30 between 20, and when the liquid crystal display panel is manufactured, the frame adhesive 40 may be formed between the first substrate 10 and the second substrate 20 and filled inside the frame adhesive 40.
  • the range and position of the self-aligning layer 31 in the self-aligning liquid crystal layer 30 The accuracy is controlled by the area where the sealant 40 is applied, which can effectively improve the uniformity of the film thickness and the accuracy of the coating position at the edge of the self-alignment layer 31.
  • the alignment film is made by transfer or spraying. The thickness uniformity is poor and the coating position accuracy is poor. It is necessary to design a wider frame area to prevent the alignment film from covering the chip binding terminals.
  • the present invention is beneficial to achieve a narrow frame design.
  • the present invention also provides a method for manufacturing a liquid crystal display panel, which includes the following steps:
  • Step S1 referring to FIG. 3, a first substrate 10 and a second substrate 20 are provided.
  • the first substrate 10 includes a first substrate 11, a plurality of color resist blocks 12 arranged on one side of the first substrate 11 and arranged in an array, and a color resist block 12 provided on the first substrate 11.
  • a black matrix 13 on the side and between adjacent color resist blocks 12 and outside the array of color resist blocks 12 and a protective layer 14 covering a plurality of color resist blocks 12 and black matrices 13;
  • the first substrate 11 includes an effective display area 111 and a peripheral area 112 outside the effective display area 111.
  • the plurality of color resist blocks 12 are all located in the effective display area 111.
  • the black matrix 13 covers the peripheral area 112.
  • the second substrate 20 includes a second substrate 21 and a metal wiring 22 provided on a side of the second substrate 21.
  • Step S2 a sealant 40 is formed between the first substrate 10 and the second substrate 20 and a self-aligned liquid crystal material 80 is filled inside the sealant 40 to obtain a liquid crystal cell 90.
  • step S2 a sealant 40 is formed between a side of the first substrate 10 provided with the protective layer 14 and a side of the second substrate 20 provided with the metal wiring 22.
  • the metal wiring 22 extends from the effective display area 111 to the peripheral area 112.
  • the sealant 40 covers the metal wiring 22 and extends to the end of the peripheral region 112.
  • a liquid crystal injection method or a liquid crystal dropping method may be used to fill the self-aligned liquid crystal material 80 inside the sealant 40.
  • step S3 the liquid crystal cell 90 is baked, and the baking temperature is higher than the clearing point temperature of the self-aligned liquid crystal material 80.
  • Step S4 The temperature of the liquid crystal cell 90 is kept higher than the clearing point temperature of the self-aligned liquid crystal material 80, and the liquid crystal cell 90 is irradiated with ultraviolet light to form the liquid crystal cell 90 between the first substrate 10 and the second substrate 20 and is located at the sealant.
  • the self-aligned liquid crystal layer 30 on the inner side of 40.
  • the self-aligned liquid crystal layer 30 includes two self-aligned layers 31 provided on the first substrate 10 and the second substrate 20 and a liquid crystal molecular layer 32 provided between the two self-aligned layers 31.
  • step S4 the liquid crystal cell 90 is irradiated with polarized ultraviolet light.
  • Step S5 The liquid crystal cell 90 is cooled to room temperature, and the liquid crystal cell 90 is continuously irradiated with ultraviolet light to strengthen the alignment effect of the self-alignment layer 31.
  • a liquid crystal cell 90 is obtained by first forming a sealant 40 between the first substrate 10 and the second substrate 20 and filling the self-aligned liquid crystal material 80 inside the sealant 40. Then, the liquid crystal cell 90 is baked and ultraviolet light is irradiated to align the self-aligned liquid crystal material 80 to form a self-aligned liquid crystal layer 30.
  • the range and position accuracy of the self-aligned layer 31 in the self-aligned liquid crystal layer 30 are coated by the frame adhesive 40 Controlling the area can effectively improve the uniformity of the film thickness and the accuracy of the coating position at the edge of the self-alignment layer 31.
  • the alignment film is made by transfer or spraying. The position accuracy of the cloth is poor, and a wider frame area needs to be designed to prevent the alignment film from covering the chip binding terminals.
  • the present invention is beneficial to realize a narrow frame design.
  • the liquid crystal display panel of the present invention includes a first substrate and a second substrate opposite to each other, a self-aligned liquid crystal layer disposed between the first substrate and the second substrate, and a first substrate and a second substrate.
  • a frame sealant located outside the self-aligned liquid crystal layer, the self-aligned liquid crystal layer includes two self-aligned layers respectively disposed on the first substrate and the second substrate, and a liquid crystal molecular layer provided between the two self-aligned layers.
  • the liquid crystal cell is baked and subjected to ultraviolet light irradiation.
  • the self-aligned liquid crystal material is aligned to form a self-aligned liquid crystal layer.
  • the range and position accuracy of the self-aligned liquid crystal layer in the self-aligned liquid crystal layer are controlled by the area coated by the frame adhesive, which can effectively improve the uniformity of the thickness of the self-aligned layer and the coating
  • the position accuracy of the cloth is conducive to the realization of narrow border design.
  • the manufacturing method of the liquid crystal display panel of the present invention can realize a narrow frame design.

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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)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)

Abstract

本发明提供一种液晶显示面板及其制作方法。本发明的液晶显示面板在制作时，先在第一基板及第二基板之间形成框胶并在框胶内侧填充自配向液晶材料，得到液晶盒，而后对液晶盒进行烘烤并进行紫外光照射对自配向液晶材料进行配向，形成自配向液晶层，自配向液晶层中自配向层的范围及位置精度通过框胶涂布的区域进行控制，能够有效提升自配向层边缘的膜厚均一性及涂布位置精度，有利于实现窄边框设计。

Description

液晶显示面板及其制作方法 技术领域
本发明涉及显示技术领域，尤其涉及一种液晶显示面板及其制作方法。
背景技术
在显示技术领域，液晶显示装置(Liquid Crystal Display，LCD)等平板显示装置已经逐步取代阴极射线管(Cathode Ray Tube，CRT)显示装置。液晶显示装置具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶显示面板及背光模组(backlight module)。通常液晶显示面板由彩膜(Color Filter，CF)基板、薄膜晶体管(Thin Film Transistor，TFT)阵列基板、夹于彩膜基板与薄膜晶体管阵列基板之间的液晶(Liquid Crystal，LC)及密封胶框(Sealant)组成。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
为了使液晶分子按照特定的旋转方向进行排列，需要在TFT阵列基板和彩色滤光片基板的内侧制作配向膜，配向膜可用于限制液晶分子的配向状态。传统的配向膜制造方法是将溶有高分子化合物的PI(Polyimide，聚酰亚胺)液通过转印或喷涂的方式形成在配向膜的基板表面，之后对PI液进行烘烤形成配向膜。配向膜需要覆盖液晶显示面板的有效显示区(AA)。
随着手机的普及，人们对手机屏显示效果的要求也越来越高。极窄边框作为手机屏发展的一种趋势，不仅对产品设计有更高的要求，对于生产工艺也有新的挑战。极窄边框实际产品设计中要求配向膜有较高的涂布位置精度，需要使配向膜超出有效显示区边缘的长度尽可能的小，从而降低配向膜覆盖有效显示区外侧的芯片邦定区的风险，然而受制于工艺，通过转印或喷涂的方式形成的配向膜的边缘膜厚均一性以及起始位置精度难以满足极窄边框的要求，不得不增大边框的尺寸以防止配向膜覆盖芯片邦定区，这样不利于实现窄边框。
发明内容
本发明的目的在于提供一种液晶显示面板，能够实现窄边框设计。
本发明的另一目的在于提供一种液晶显示面板的制作方法，能够实现窄边框设计。
为实现上述目的，本发明首先提供一种液晶显示面板，包括相对设置的第一基板及第二基板、设于第一基板及第二基板之间的自配向液晶层以及设于第一基板及第二基板之间且位于自配向液晶层外侧的框胶；
所述自配向液晶层包括分别设于第一基板与第二基板的两个自配向层以及设于两个自配向层之间的液晶分子层。
所述第一基板包括第一衬底、设于第一衬底靠近自配向液晶层一侧且阵列排布的多个色阻块、设于第一衬底靠近自配向液晶层一侧且位于相邻色阻块之间及色阻块阵列外侧的黑色矩阵。
所述第一衬底包括有效显示区及位于有效显示区外的外围区，所述多个色阻块均位于有效显示区内；所述黑色矩阵覆盖外围区。
所述第二基板包括第二衬底、设于第二衬底靠近自配向液晶层一侧的金属配线；所述金属配线由有效显示区延伸至外围区；
所述框胶设于外围区内；所述框胶覆盖金属配线延伸至外围区的端部。
所述第一基板还包括覆盖多个色阻块及黑色矩阵的保护层。
本发明还提供一种液晶显示面板的制作方法，包括如下步骤：
步骤S1、提供第一基板及第二基板；
步骤S2、在第一基板及第二基板之间形成框胶并在框胶内侧填充自配向液晶材料，得到液晶盒；
步骤S3、对液晶盒进行烘烤，烘烤温度高于所述自配向液晶材料的清亮点温度；
步骤S4、保持液晶盒的温度高于所述自配向液晶材料的清亮点温度，利用紫外光对液晶盒进行照射，形成于第一基板及第二基板之间且位于框胶内侧的自配向液晶层；
所述自配向液晶层包括分别设于第一基板与第二基板的两个自配向层以及设于两个自配向层之间的液晶分子层。
所述步骤S2中采用液晶注入的方式或液晶滴下的方式在框胶内侧填充自配向液晶材料。
所述液晶显示面板的制作方法还包括步骤S5、将液晶盒冷却至室温，继续利用紫外光对液晶盒进行照射。
所述第一基板包括第一衬底、设于第一衬底一侧且阵列排布的多个色阻块、设于第一衬底设有色阻块一侧且位于相邻色阻块之间及色阻块阵列外侧的黑色矩阵以及覆盖多个色阻块及黑色矩阵的保护层；所述第一衬底 包括有效显示区及位于有效显示区外的外围区，所述多个色阻块均位于有效显示区内；所述黑色矩阵覆盖外围区；
所述第二基板包括第二衬底、设于第二衬底一侧的金属配线；
所述步骤S2中，在第一基板设有保护层的一侧及第二基板设有金属配线的一侧之间形成框胶；所述步骤S2完成后，所述金属配线由有效显示区延伸至外围区；所述框胶覆盖金属配线延伸至外围区的端部。
所述框胶位于外围区内，所述框胶覆盖金属配线延伸至外围区的端部。
所述步骤S4中，利用偏振紫外光对液晶盒进行照射。
本发明的有益效果：本发明的液晶显示面板包括相对设置的第一基板及第二基板、设于第一基板及第二基板之间的自配向液晶层以及设于第一基板及第二基板之间且位于自配向液晶层外侧的框胶，自配向液晶层包括分别设于第一基板与第二基板的两个自配向层以及设于两个自配向层之间的液晶分子层。该液晶显示面板在制作时，先在第一基板及第二基板之间形成框胶并在框胶内侧填充自配向液晶材料，得到液晶盒，而后对液晶盒进行烘烤并进行紫外光照射对自配向液晶材料进行配向，形成自配向液晶层，自配向液晶层中自配向层的范围及位置精度通过框胶涂布的区域进行控制，能够有效提升自配向层边缘的膜厚均一性及涂布位置精度，有利于实现窄边框设计。本发明的液晶显示面板的制作方法能够实现窄边框设计。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的液晶显示面板的结构示意图；
图2为本发明的液晶显示面板的制作方法的流程图；
图3为本发明的液晶显示面板的制作方法的步骤S1的示意图；
图4为本发明的液晶显示面板的制作方法的步骤S2的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明的液晶显示面板包括相对设置的第一基板10及第二基板20、设于第一基板10及第二基板20之间的自配向液晶层30以及设 于第一基板10及第二基板20之间且位于自配向液晶层30外侧的框胶40。
所述自配向液晶层30包括分别设于第一基板10与第二基板20的两个自配向层31以及设于两个自配向层31之间的液晶分子层32。
具体地，请参阅图1，所述第一基板10包括第一衬底11、设于第一衬底11靠近自配向液晶层30一侧且阵列排布的多个色阻块12、设于第一衬底11靠近自配向液晶层30一侧且位于相邻色阻块12之间及色阻块12阵列外侧的黑色矩阵13。
具体地，请参阅图1，所述第一衬底11包括有效显示区111及位于有效显示区111外的外围区112，所述多个色阻块12均位于有效显示区111内。所述黑色矩阵13覆盖外围区112。所述多个色阻块12包括依次设置的红色色阻块、绿色色阻块及蓝色色阻块，当然，所述色阻块12还可包括其他颜色的色阻块，例如黄色色阻块。
具体地，请参阅图1，所述第二基板20包括第二衬底21、设于第二衬底21靠近自配向液晶层30一侧的金属配线22。所述金属配线22由有效显示区111延伸至外围区112。
具体地，所述框胶40设于外围区112内。所述框胶40覆盖金属配线22延伸至外围区112的端部。
具体地，所述第一基板10还包括覆盖多个色阻块12及黑色矩阵13的保护层14，所述框胶40靠近第一基板10的一侧与保护层14连接。
需要说明的是，本发明的液晶显示面板在第一基板10及第二基板20之间设置包括自配向层31及液晶分子层32的自配向液晶层30，并且第一基板10及第二基板20之间于自配向液晶层30外侧设有框胶40，该液晶显示面板在制作时，可通过先在第一基板10及第二基板20之间形成框胶40并在框胶40内侧填充自配向液晶材料，得到液晶盒，而后对液晶盒进行烘烤并进行紫外光照射对自配向液晶材料进行配向，形成自配向液晶层30，自配向液晶层30中自配向层31的范围及位置精度通过框胶40涂布的区域进行控制，能够有效提升自配向层31边缘的膜厚均一性及涂布位置精度，相较于现有技术采用转印或喷涂的方式制作配向膜由于边缘膜厚均匀性较差及涂布位置精度较差，需要设计较宽的边框区以防止配向膜覆盖芯片绑定端子，本发明有利于实现窄边框设计。
请参阅图2，基于同一发明构思，本发明还提供一种液晶显示面板的制作方法，包括如下步骤：
步骤S1、请参阅图3，提供第一基板10及第二基板20。
具体地，所述第一基板10包括第一衬底11、设于第一衬底11一侧且 阵列排布的多个色阻块12、设于第一衬底11设有色阻块12一侧且位于相邻色阻块12之间及色阻块12阵列外侧的黑色矩阵13以及覆盖多个色阻块12及黑色矩阵13的保护层14；所述第一衬底11包括有效显示区111及位于有效显示区111外的外围区112，所述多个色阻块12均位于有效显示区111内。所述黑色矩阵13覆盖外围区112。所述第二基板20包括第二衬底21、设于第二衬底21一侧的金属配线22。
步骤S2、请参阅图4，在第一基板10及第二基板20之间形成框胶40并在框胶40内侧填充自配向液晶材料80，得到液晶盒90。
具体地，请参阅图4，所述步骤S2中，在第一基板10设有保护层14的一侧及第二基板20设有金属配线22的一侧之间形成框胶40。所述步骤S2完成后，所述金属配线22由有效显示区111延伸至外围区112。所述框胶40覆盖金属配线22延伸至外围区112的端部。
具体地，所述步骤S2中可采用液晶注入的方式或液晶滴下的方式在框胶40内侧填充自配向液晶材料80。
步骤S3、对液晶盒90进行烘烤，烘烤温度高于所述自配向液晶材料80的清亮点温度。
步骤S4、保持液晶盒90的温度高于所述自配向液晶材料80的清亮点温度，利用紫外光对液晶盒90进行照射，形成于第一基板10及第二基板20之间且位于框胶40内侧的自配向液晶层30。所述自配向液晶层30包括分别设于第一基板10与第二基板20的两个自配向层31以及设于两个自配向层31之间的液晶分子层32。
具体地，所述步骤S4中，利用偏振紫外光对液晶盒90进行照射。
步骤S5、将液晶盒90冷却至室温，继续利用紫外光对液晶盒90进行照射，强化自配向层31的配向效果。
需要说明的是，本发明的液晶显示面板的制作方法通过先在第一基板10及第二基板20之间形成框胶40并在框胶40内侧填充自配向液晶材料80，得到液晶盒90，而后对液晶盒90进行烘烤并进行紫外光照射对自配向液晶材料80进行配向，形成自配向液晶层30，自配向液晶层30中自配向层31的范围及位置精度通过框胶40涂布的区域进行控制，能够有效提升自配向层31边缘的膜厚均一性及涂布位置精度，相较于现有技术采用转印或喷涂的方式制作配向膜由于边缘膜厚均匀性较差及涂布位置精度较差，需要设计较宽的边框区以防止配向膜覆盖芯片绑定端子，本发明有利于实现窄边框设计。
综上所述，本发明的液晶显示面板包括相对设置的第一基板及第二基 板、设于第一基板及第二基板之间的自配向液晶层以及设于第一基板及第二基板之间且位于自配向液晶层外侧的框胶，自配向液晶层包括分别设于第一基板与第二基板的两个自配向层以及设于两个自配向层之间的液晶分子层。该液晶显示面板在制作时，先在第一基板及第二基板之间形成框胶并在框胶内侧填充自配向液晶材料，得到液晶盒，而后对液晶盒进行烘烤并进行紫外光照射对自配向液晶材料进行配向，形成自配向液晶层，自配向液晶层中自配向层的范围及位置精度通过框胶涂布的区域进行控制，能够有效提升自配向层边缘的膜厚均一性及涂布位置精度，有利于实现窄边框设计。本发明的液晶显示面板的制作方法能够实现窄边框设计。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种液晶显示面板，包括相对设置的第一基板及第二基板、设于第一基板及第二基板之间的自配向液晶层以及设于第一基板及第二基板之间且位于自配向液晶层外侧的框胶；
    所述自配向液晶层包括分别设于第一基板与第二基板的两个自配向层以及设于两个自配向层之间的液晶分子层。
  2. 如权利要求1所述的液晶显示面板，其中，所述第一基板包括第一衬底、设于第一衬底靠近自配向液晶层一侧且阵列排布的多个色阻块、设于第一衬底靠近自配向液晶层一侧且位于相邻色阻块之间及色阻块阵列外侧的黑色矩阵。
  3. 如权利要求2所述的液晶显示面板，其中，所述第一衬底包括有效显示区及位于有效显示区外的外围区，所述多个色阻块均位于有效显示区内；所述黑色矩阵覆盖外围区。
  4. 如权利要求3所述的液晶显示面板，其中，所述第二基板包括第二衬底、设于第二衬底靠近自配向液晶层一侧的金属配线；所述金属配线由有效显示区延伸至外围区；
    所述框胶设于外围区内；所述框胶覆盖金属配线延伸至外围区的端部。
  5. 如权利要求2所述的液晶显示面板，其中，所述第一基板还包括覆盖多个色阻块及黑色矩阵的保护层。
  6. 一种液晶显示面板的制作方法，包括如下步骤：
    步骤S1、提供第一基板及第二基板；
    步骤S2、在第一基板及第二基板之间形成框胶并在框胶内侧填充自配向液晶材料，得到液晶盒；
    步骤S3、对液晶盒进行烘烤，烘烤温度高于所述自配向液晶材料的清亮点温度；
    步骤S4、保持液晶盒的温度高于所述自配向液晶材料的清亮点温度，利用紫外光对液晶盒进行照射，形成于第一基板及第二基板之间且位于框胶内侧的自配向液晶层；
    所述自配向液晶层包括分别设于第一基板与第二基板的两个自配向层以及设于两个自配向层之间的液晶分子层。
  7. 如权利要求6所述的液晶显示面板的制作方法，其中，所述步骤S2中采用液晶注入的方式或液晶滴下的方式在框胶内侧填充自配向液晶材料。
  8. 如权利要求6所述的液晶显示面板的制作方法，还包括步骤S5、将液晶盒冷却至室温，继续利用紫外光对液晶盒进行照射。
  9. 如权利要求6所述的液晶显示面板的制作方法，其中，所述第一基板包括第一衬底、设于第一衬底一侧且阵列排布的多个色阻块、设于第一衬底设有色阻块一侧且位于相邻色阻块之间及色阻块阵列外侧的黑色矩阵以及覆盖多个色阻块及黑色矩阵的保护层；所述第一衬底包括有效显示区及位于有效显示区外的外围区，所述多个色阻块均位于有效显示区内；所述黑色矩阵覆盖外围区；
    所述第二基板包括第二衬底、设于第二衬底一侧的金属配线；
    所述步骤S2中，在第一基板设有保护层的一侧及第二基板设有金属配线的一侧之间形成框胶；所述框胶位于外围区内；所述步骤S2完成后，所述金属配线由有效显示区延伸至外围区；所述框胶覆盖金属配线延伸至外围区的端部。
  10. 如权利要求6所述的液晶显示面板的制作方法，其中，所述步骤S4中，利用偏振紫外光对液晶盒进行照射。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI747478B (zh) * 2020-08-17 2021-11-21 大陸商豪威半導體（上海）有限責任公司 液晶顯示面板及其製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109445194B (zh) * 2018-11-21 2021-04-27 武汉华星光电技术有限公司 一种量子点液晶面板及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009175483A (ja) * 2008-01-25 2009-08-06 Epson Imaging Devices Corp 半導体装置の製造方法、半導体装置および電気光学装置
CN107463029A (zh) * 2017-08-25 2017-12-12 深圳市华星光电技术有限公司 自取向液晶显示面板及其制作方法
CN107805506A (zh) * 2017-11-14 2018-03-16 深圳市华星光电技术有限公司 液晶显示面板及其制作方法、自取向液晶介质混合物
CN108003897A (zh) * 2017-12-25 2018-05-08 深圳市华星光电技术有限公司 垂直取向剂、自取向液晶混合物及其应用
KR20180047422A (ko) * 2016-10-31 2018-05-10 엘지디스플레이 주식회사 액정표시장치 및 그 제조방법
CN108181746A (zh) * 2018-03-05 2018-06-19 深圳市华星光电技术有限公司 一种液晶显示面板的制作方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100454090C (zh) * 2005-10-19 2009-01-21 统宝光电股份有限公司 液晶显示面板的制造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009175483A (ja) * 2008-01-25 2009-08-06 Epson Imaging Devices Corp 半導体装置の製造方法、半導体装置および電気光学装置
KR20180047422A (ko) * 2016-10-31 2018-05-10 엘지디스플레이 주식회사 액정표시장치 및 그 제조방법
CN107463029A (zh) * 2017-08-25 2017-12-12 深圳市华星光电技术有限公司 自取向液晶显示面板及其制作方法
CN107805506A (zh) * 2017-11-14 2018-03-16 深圳市华星光电技术有限公司 液晶显示面板及其制作方法、自取向液晶介质混合物
CN108003897A (zh) * 2017-12-25 2018-05-08 深圳市华星光电技术有限公司 垂直取向剂、自取向液晶混合物及其应用
CN108181746A (zh) * 2018-03-05 2018-06-19 深圳市华星光电技术有限公司 一种液晶显示面板的制作方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI747478B (zh) * 2020-08-17 2021-11-21 大陸商豪威半導體（上海）有限責任公司 液晶顯示面板及其製造方法

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