WO2021077490A1 - Écran d'affichage, procédé de préparation associé et appareil d'affichage - Google Patents

Écran d'affichage, procédé de préparation associé et appareil d'affichage Download PDF

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Publication number
WO2021077490A1
WO2021077490A1 PCT/CN2019/118178 CN2019118178W WO2021077490A1 WO 2021077490 A1 WO2021077490 A1 WO 2021077490A1 CN 2019118178 W CN2019118178 W CN 2019118178W WO 2021077490 A1 WO2021077490 A1 WO 2021077490A1
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WO
WIPO (PCT)
Prior art keywords
alignment film
film layer
display panel
retaining wall
display area
Prior art date
Application number
PCT/CN2019/118178
Other languages
English (en)
Chinese (zh)
Inventor
朱清永
Original Assignee
Tcl华星光电技术有限公司
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.)
Filing date
Publication date
Application filed by Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Publication of WO2021077490A1 publication Critical patent/WO2021077490A1/fr

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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
    • G02F1/1337—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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells

Definitions

  • the present invention relates to the field of display technology, in particular to a display panel, a preparation method thereof, and a display device.
  • TFT Thin Film Transistor
  • LCD Liquid Crystal Display
  • AMOLED Active Matrix Organic Light-Emitting
  • AMOLED Active Matrix Organic Light-Emitting
  • liquid crystal display panels which include liquid crystal display panels and backlight modules (backlight module).
  • backlit liquid crystal displays which include liquid crystal display panels and backlight modules (backlight module).
  • the working principle of the liquid crystal display panel is based on the thin film transistor array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate) and the color filter (Color Filter, CF) substrate are filled with liquid crystal molecules, and the pixel voltage and common voltage are applied to the two substrates respectively, and the electric field formed between the pixel voltage and the common voltage controls the liquid crystal molecules Rotate the direction to transmit the light of the backlight module to produce a picture.
  • TFT Array Substrate Thin Film Transistor Array Substrate
  • color filter Color Filter
  • the LCD panel molding process generally includes: the front-end array process (thin film, yellow light, etching and stripping), the middle-stage cell process (the bonding of the TFT substrate and the CF substrate), and the back-end module assembly process (The driver IC is pressed against the printed circuit board).
  • the front Array process is mainly to form TFT substrates to control the movement of liquid crystal molecules
  • the middle cell process is mainly to add liquid crystal between the TFT substrate and the CF substrate
  • the back module assembly process is mainly to drive IC pressing and printed circuits
  • the integration of the board drives the rotation of the liquid crystal molecules to display images.
  • COA Color Filter on Array
  • POA PS on Array
  • the embodiment of the present invention provides a display panel, a manufacturing method thereof, and a display device.
  • the present application addresses the shortcomings of the product in which the color filter layer and its spacers are integrated on the array substrate, through the alignment film layer located in the non-display area
  • the retaining wall is provided to make it more difficult for water and oxygen to enter the display panel through the alignment film layer, thereby effectively improving the stability of the display panel.
  • the present application provides a display panel, the display panel includes a non-display area, and the display panel includes:
  • the alignment film layer is formed on the color filter substrate
  • the alignment film layer located in the non-display area is provided with a retaining wall, and the water permeability of the retaining wall is lower than the water permeability of the alignment film layer.
  • the display panel includes an array substrate and sealant
  • the array substrate and the color filter substrate are arranged opposite to each other;
  • the sealant connects the color filter substrate and the array substrate
  • the frame glue and the retaining wall are integrally formed.
  • the retaining wall includes at least two sub-retaining walls distributed at intervals.
  • the width of the sub-retaining wall ranges from 50-200um.
  • the present application provides a display device, the display device includes a display panel, the display panel includes a non-display area, and the display panel includes:
  • the alignment film layer is formed on the color filter substrate
  • the alignment film layer located in the non-display area is provided with a retaining wall, and the water permeability of the retaining wall is lower than the water permeability of the alignment film layer.
  • the display panel further includes an array substrate and sealant
  • the array substrate and the color filter substrate are arranged opposite to each other;
  • the sealant connects the color filter substrate and the array substrate
  • the frame glue and the retaining wall are integrally formed.
  • the retaining wall includes at least two sub-retaining walls distributed at intervals.
  • the width of the sub-retaining wall ranges from 50-200um.
  • the present application provides a method for manufacturing a display panel, the display panel including a non-display area, and the method includes:
  • a retaining wall is prepared on the alignment film layer located in the non-display area, and the water permeability of the retaining wall is lower than the water permeability of the alignment film layer.
  • the preparing an alignment film layer on the color filter substrate includes:
  • An alignment film layer is prepared on the common electrode layer.
  • the preparation of a retaining wall on the alignment film layer located in the non-display area, the water permeability of the retaining wall being lower than the water permeability of the alignment film layer includes:
  • a retaining wall is prepared in the via hole, and the water permeability of the retaining wall is lower than the water permeability of the alignment film layer.
  • the patterning of the alignment film layer by a laser laser process to form a via hole on the alignment film layer located in the non-display area includes:
  • the alignment film layer is patterned by a laser laser process to form via holes extending in a curved direction on the alignment film layer located in the non-display area.
  • the patterning of the alignment film layer by a laser laser process includes:
  • the alignment film layer and the common electrode layer located in the non-display area are simultaneously patterned by a laser laser process to form via holes on the alignment film layer located in the non-display area.
  • a display panel in the embodiment of the present invention, includes a non-display area, the display panel includes: a color filter substrate; an alignment film layer formed on the color filter substrate; wherein the alignment film layer located in the non-display area A retaining wall is provided, and the water permeability of the retaining wall is lower than the water permeability of the alignment film layer, which is different from the prior art.
  • the present application addresses the shortcomings of the color filter layer and its spacers integrated on the array substrate.
  • the alignment film layer in the non-display area is provided with a retaining wall, which makes it more difficult for water and oxygen to enter the display panel through the alignment film layer, thereby effectively improving the stability of the display panel.
  • FIG. 1 is a schematic structural diagram of an embodiment of a display panel provided by an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of another embodiment of a display panel provided by an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of an embodiment of a method for manufacturing a display panel provided by an embodiment of the present invention
  • FIG. 4 is a schematic diagram of another embodiment of a method for manufacturing a display panel provided by an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of another embodiment of a method for manufacturing a display panel provided by an embodiment of the present invention.
  • 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 indicated technical features.
  • the features defined with “first” and “second” may explicitly or implicitly include one or more of the features.
  • “plurality” means two or more than two, unless otherwise specifically defined.
  • COA Color Filter on Array
  • POA PS on Array
  • embodiments of the present invention provide a display panel, a manufacturing method thereof, and a display device, which will be described in detail below.
  • an embodiment of the present invention provides a display panel, the display panel includes a non-display area, the display panel includes: a color filter substrate; an alignment film layer formed on the color filter substrate; wherein the alignment film located in the non-display area
  • the layer is provided with a retaining wall, and the water permeability of the retaining wall is lower than the water permeability of the alignment film layer.
  • FIG. 1 is a schematic structural diagram of an embodiment of a display panel in an embodiment of the present invention.
  • the display panel 10 includes a non-display area 100 and a display area 101.
  • the display area 101 of the display panel is used to display pixels.
  • the screen in the area corresponding to the display area 101, also includes an array substrate and a color filter substrate, and a liquid crystal layer located between the array substrate and the color filter substrate.
  • the non-display area 101 of the display panel corresponds to the area of the sealant 106 where the array substrate and the color filter substrate are connected.
  • the display panel includes: a color filter substrate 102; an alignment film layer 103 formed on the color filter substrate; wherein, it is located in the non-display area 100
  • the alignment film layer 103 is provided with a retaining wall 104.
  • the water permeability of the retaining wall 104 is lower than that of the alignment film layer 103.
  • the display area 101 is provided with alignment films on the upper and lower layers of the liquid crystal layer.
  • Layer 103, the alignment film layer 103 can provide a pretilt angle for the liquid crystal molecules in the liquid crystal layer, so that the liquid crystal molecules can be more effectively deflected when receiving a deflection signal.
  • the alignment film layer 103 can be made of polyimide Polyimide has a certain degree of water absorption.
  • the alignment film layer 103 can be provided with a retaining wall 104.
  • the waterproofness of the material used for the retaining wall 104 It is higher than the alignment film layer 103.
  • the alignment film layer 103 located in the non-display area 100 is provided with a retaining wall 104 to make water and oxygen It is more difficult to enter the display panel through the alignment film layer 103, thereby effectively improving the stability of the display panel.
  • FIG. 2 is a schematic structural diagram of another embodiment of a display panel provided by an embodiment of the present invention.
  • the display panel further includes an array substrate 105 and a sealant 106, wherein the color resist layer is integrated on the array substrate; the array substrate is arranged opposite to the color filter substrate; the sealant 106 connects the color filter substrate and the array substrate
  • the frame glue 106 and the retaining wall 104 are integrally formed. Specifically, in the color film substrate manufacturing process, when the alignment film layer 103 is prepared, a via hole is formed on the alignment film layer 103, and when the frame rubber 106 is prepared, the frame glue 106 The via holes are filled, so that a retaining wall 104 is formed between the alignment film layer 103. Compared with the alignment film layer 103, the sealant 106 has a higher sealing performance and a lower water permeability.
  • the retaining wall 104 includes at least two sub-retaining walls 1041 distributed at intervals. Specifically, a plurality of via holes are opened in the alignment film layer 103, and sealant is filled in the plurality of via holes. 106. Form a plurality of sub-retaining walls 104 distributed at intervals. For example, four sub-retaining walls 104 may be formed. The number of sub-retaining walls 104 is not limited in this application, and it depends on the actual situation.
  • the width of the sub-retaining walls 104 is 50 -200um, specifically, when opening the via hole in the alignment film layer 103, the width of the via hole is set to 50-200um, and the sealant 106 is filled in the via hole to form a sub-retaining wall with a width in the range of 50-200um 104.
  • the width of the sub-retaining wall 104 can be set to 100um. This application does not limit the width of the sub-retaining wall 104, and it depends on the actual situation. When the width of the retaining wall 104 is moderate, the preparation complexity can be reduced. Sex, and at the same time can play a better role in isolating water vapor.
  • the embodiment of the present invention also provides a display device, and the display device includes the display panel described in the foregoing embodiment.
  • the display device provided by the embodiment of the present invention includes the display panel described in the above-mentioned embodiment, the display panel includes a non-display area 100, and the display panel includes: a color film substrate
  • the alignment film layer 103 is formed on the color filter substrate; wherein, the alignment film layer 103 located in the non-display area 100 is provided with a retaining wall 104, and the water permeability of the retaining wall 104 is lower than that of the alignment film layer 103, which is different from
  • the present application addresses the shortcomings of the product in which the color filter layer and its spacers are integrated on the array substrate.
  • the alignment film layer 103 located in the non-display area 100 is provided with a retaining wall 104 to make water and oxygen more difficult.
  • the alignment film layer 103 enters the display panel, thereby effectively improving the stability of the display panel.
  • the embodiment of the present invention also provides a method for manufacturing a display panel.
  • the display panel includes a non-display area 100.
  • the method includes: providing a color film substrate Prepare the alignment film layer 103 on the color filter substrate; prepare the retaining wall 104 on the alignment film layer 103 located in the non-display area 100, and the water permeability of the retaining wall 104 is lower than that of the alignment film layer 103.
  • FIG. 3 is a schematic diagram of an embodiment of a method for manufacturing a display panel according to an embodiment of the present invention.
  • the display panel includes a non-display area 100, and the method includes:
  • the color resist layer and spacers in the provided color filter substrate may be integrated on the array substrate, and the color filter substrate mainly includes a black matrix layer.
  • the polyimide material is coated on the color filter substrate, and the alignment film layer 103 is prepared through the steps of patterning and curing.
  • a via hole is prepared on the alignment film layer 103 located in the non-display area 100, and the via hole is filled with a material with a lower water permeability than the alignment film layer 103 to form a retaining wall 104 in the via hole.
  • a method for preparing a display panel is provided. Compared with the traditional preparation process, the alignment film needs to be opened and the holes are filled with waterproof materials.
  • the retaining wall 104 has been prepared, and the retaining wall 104 can effectively Prevent water vapor from entering the inside of the display panel through the alignment film 103, thereby effectively reducing the probability of the display panel being corroded, and improving the stability of the display panel.
  • preparing the alignment film layer 103 on the color filter substrate includes: preparing a common electrode layer on the color filter substrate; preparing an alignment film on the common electrode layer ⁇ 103.
  • FIG. 4 is a schematic diagram of another embodiment of a method for manufacturing a display panel according to an embodiment of the present invention, in which, preparing an alignment film layer 103 on a color filter substrate includes:
  • a metal layer is sputtered on the color filter substrate to prepare a common electrode layer.
  • an alignment film layer 103 is prepared on the common electrode layer, and the alignment film is located between the liquid crystal layer and the common electrode layer.
  • a retaining wall 104 is prepared on the alignment film layer 103 located in the non-display area 100, and the water permeability of the retaining wall 104 is lower than that of the alignment film layer 103
  • the water permeability includes: patterning the alignment film layer 103 by a laser laser process to form a via hole on the alignment film layer 103 located in the non-display area 100; preparing a retaining wall 104 in the via hole, and the water permeability of the retaining wall 104 The water permeability is lower than the water permeability of the alignment film layer 103.
  • FIG. 5 is a schematic diagram of another embodiment of a method for manufacturing a display panel according to an embodiment of the present invention, in which a retaining wall 104 is prepared on the alignment film layer 103 located in the non-display area 100.
  • the water permeability is lower than that of the alignment film 103, including:
  • a laser laser process is used to laser the alignment film layer 103 to remove the alignment film layer 103 material located on the alignment film layer 103 in the non-display area 100 to prepare via holes.
  • the waterproof material is filled in the above-mentioned via hole to prepare the retaining wall 104 in the via hole.
  • the alignment film layer 103 is patterned by a laser laser process to form via holes on the alignment film layer 103 located in the non-display area 100, including :
  • the alignment film layer 103 is patterned by a laser laser process to form via holes extending in a curved direction on the alignment film layer 103 located in the non-display area 100.
  • the alignment film 103 is patterned by a laser process.
  • the patterning is set according to the rounded corner model.
  • the accuracy of the alignment film is difficult to control, so the alignment film layer 103 at the rounded corners can easily flow out and contact the outside. Therefore, it is more necessary to prepare a retaining wall 104 between the alignment films at the corresponding rounded corners.
  • a rectangular alignment film layer 103 may be directly prepared on the common electrode layer.
  • the corners of the alignment film 103 are chamfered by a laser laser process to obtain an alignment film with rounded corners. Therefore, the coating of the alignment film layer only requires a standard rectangular coating, which can simplify the alignment film layer coating process of the round-corner display panel.
  • the via hole when preparing the sealant, may be filled with the sealant, and the barrier wall can be prepared by using the sealant as a material.
  • patterning the alignment film layer 103 by a laser laser process includes:
  • the alignment film layer 103 and the common electrode layer located in the non-display area 100 are simultaneously patterned by a laser laser process to form via holes on the alignment film layer 103 located in the non-display area 100.
  • the common electrode process and the barrier 104 process can be combined. Specifically, a metal layer is sputtered on the color film substrate to form a metal layer, and then, coating on the metal layer After the polyimide material is cured, the alignment film layer 103 and the common electrode layer located in the non-display area 100 are patterned simultaneously by a laser laser process, so that the alignment film layer 103 and the common electrode layer located in the non-display area 100 are patterned at the same time. Via holes are formed on the alignment film layer 103. This method saves new equipment costs and effectively solves the problem that the display panel is easily corroded due to the water absorption of the alignment film.
  • each of the above units or structures can be implemented as independent entities, or can be combined arbitrarily, and implemented as the same or several entities.
  • specific implementation of each of the above units or structures please refer to the previous method embodiments. No longer.

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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)
  • Liquid Crystal (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un écran d'affichage et un procédé de préparation associé, ainsi qu'un appareil d'affichage. Les modes de réalisation de la présente invention se distinguent de l'état de la technique en ce que la présente invention aborde les défauts de produits dans lesquels des couches de filtre coloré et des éléments d'espacement de ceux-ci sont intégrés sur un substrat de réseau, rendant plus difficile l'entrée d'eau et d'oxygène dans un panneau d'affichage par l'intermédiaire d'une couche de film d'alignement au moyen de l'agencement d'une paroi barrière sur la couche de film d'alignement positionnée dans une zone de non-affichage, ce qui permet d'augmenter efficacement la stabilité du panneau d'affichage.
PCT/CN2019/118178 2019-10-22 2019-11-13 Écran d'affichage, procédé de préparation associé et appareil d'affichage WO2021077490A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911007147.2A CN110824781A (zh) 2019-10-22 2019-10-22 显示面板及其制备方法、显示装置
CN201911007147.2 2019-10-22

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WO2021077490A1 true WO2021077490A1 (fr) 2021-04-29

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111679513A (zh) * 2020-06-02 2020-09-18 Tcl华星光电技术有限公司 液晶显示面板
CN111610655B (zh) * 2020-06-04 2022-09-13 厦门天马微电子有限公司 一种显示面板及其制备方法、电子设备
CN114035380B (zh) * 2021-11-01 2023-07-14 重庆康佳光电技术研究院有限公司 一种彩膜基板、显示面板及彩膜基板制备方法
CN114296279A (zh) * 2021-12-23 2022-04-08 上海中航光电子有限公司 一种液晶显示面板、制备方法及显示装置

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JP2007248743A (ja) * 2006-03-15 2007-09-27 Seiko Epson Corp 液晶装置及びその製造方法、並びに電子機器
JP2009020421A (ja) * 2007-07-13 2009-01-29 Epson Imaging Devices Corp 液晶装置及び電子機器
CN108169964A (zh) * 2018-01-24 2018-06-15 京东方科技集团股份有限公司 液晶显示面板的封装结构、液晶显示面板及液晶显示器
JP2019200372A (ja) * 2018-05-18 2019-11-21 セイコーエプソン株式会社 液晶装置および電子機器

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CN102540538A (zh) * 2012-02-09 2012-07-04 深圳市华星光电技术有限公司 一种液晶面板、液晶显示装置和面板制备方法
CN203759393U (zh) * 2014-03-31 2014-08-06 北京京东方光电科技有限公司 基板、显示面板及显示装置

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JP2007248743A (ja) * 2006-03-15 2007-09-27 Seiko Epson Corp 液晶装置及びその製造方法、並びに電子機器
JP2009020421A (ja) * 2007-07-13 2009-01-29 Epson Imaging Devices Corp 液晶装置及び電子機器
CN108169964A (zh) * 2018-01-24 2018-06-15 京东方科技集团股份有限公司 液晶显示面板的封装结构、液晶显示面板及液晶显示器
JP2019200372A (ja) * 2018-05-18 2019-11-21 セイコーエプソン株式会社 液晶装置および電子機器

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