WO2020207160A1 - Écran d'affichage, procédé de fabrication de l'écran d'affichage et dispositif d'affichage - Google Patents

Écran d'affichage, procédé de fabrication de l'écran d'affichage et dispositif d'affichage Download PDF

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Publication number
WO2020207160A1
WO2020207160A1 PCT/CN2020/078009 CN2020078009W WO2020207160A1 WO 2020207160 A1 WO2020207160 A1 WO 2020207160A1 CN 2020078009 W CN2020078009 W CN 2020078009W WO 2020207160 A1 WO2020207160 A1 WO 2020207160A1
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WO
WIPO (PCT)
Prior art keywords
display panel
retaining wall
resist layer
color resist
layer
Prior art date
Application number
PCT/CN2020/078009
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English (en)
Chinese (zh)
Inventor
黄世帅
Original Assignee
惠科股份有限公司
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
Priority claimed from CN201910275099.9A external-priority patent/CN110174790B/zh
Priority claimed from CN201910275098.4A external-priority patent/CN110174789B/zh
Application filed by 惠科股份有限公司 filed Critical 惠科股份有限公司
Publication of WO2020207160A1 publication Critical patent/WO2020207160A1/fr

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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

Definitions

  • This application relates to the field of display technology, and in particular to a display panel, a manufacturing method of the display panel, and a display device.
  • a liquid crystal display panel is mainly composed of a color film substrate and an array substrate, and a liquid crystal layer filled between the two substrates.
  • the two substrates are provided with alignment films, and the liquid crystals can be aligned along the grooves on the alignment films, and the liquid crystals are controlled by the electric field to form a display screen.
  • the two substrates are fixedly installed with frame sealant.
  • a layer of alignment liquid (PI) is coated on the substrate to form a pretilt angle to facilitate the liquid crystal to have a fixed tilting direction during display.
  • the alignment liquid is a fluid chemical liquid that will diffuse and flow to the non-display area after coating. Therefore, a barrier wall is set at the edge of the alignment liquid coating range to prevent the alignment liquid from exceeding the edge of the sealant.
  • the purpose of this application is to provide a display panel, a manufacturing method of the display panel, and a display device to prevent the alignment liquid from flowing back or flowing to the sealant.
  • the present application discloses a display panel, including an array substrate; a color filter substrate; a sealant, the array substrate and the color filter substrate are grouped by the sealant pair; and arranged on the array substrate and/or the color filter
  • a plurality of retaining walls on the substrate are arranged to block the flow of the alignment liquid; the plurality of retaining walls are arranged perpendicular to the coating direction of the sealant of the display panel, and there is a height difference between the plurality of retaining walls.
  • the retaining walls are separated by a certain distance.
  • the present application also discloses a display device, including a display panel, the display panel includes: a color filter substrate; an array substrate; a sealant, the color filter substrate and the array substrate are assembled through the sealant pair; The plurality of retaining walls on the array substrate and/or the color filter substrate are arranged to block the flow of the alignment liquid; the plurality of retaining walls are arranged perpendicular to the sealant coating direction of the display panel, and the plurality of retaining walls There is a height difference between them, and each of the retaining walls is separated by a certain distance.
  • the application also discloses a manufacturing method of the display panel, including the steps:
  • a plurality of retaining walls of different heights are arranged on the array substrate and/or the color filter substrate perpendicular to the direction in which the sealant of the display panel is coated, and each of the retaining walls is separated by a certain interval;
  • the array substrate and the color filter substrate are paired with sealant to form a display panel.
  • a metal layer is used to elevate the retaining wall on the array substrate.
  • a plurality of retaining walls with increasing heights are set according to the flow direction of the alignment liquid.
  • the alignment liquid flows to the retaining wall, it will be blocked step by step, and finally one Additional retaining walls and grooves can effectively prevent the alignment liquid from flowing to the rubber frame and prevent the sealant from falling off; then every time the alignment liquid flows over a retaining wall, the flow rate will decrease, so that the alignment liquid will not be After encountering the retaining wall, the backflow accumulation is generated, which causes the thickness of the alignment liquid to increase, and the brightness of the display panel is more uniform.
  • Figure 1 is a schematic diagram of an exemplary alignment liquid encountering a backflow accumulation on a retaining wall
  • Fig. 2 is a schematic diagram of an exemplary alignment liquid flowing over a retaining wall
  • FIG. 3 is a schematic diagram of a display device according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a retaining wall structure according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a retaining wall structure according to another embodiment of the present application.
  • FIG. 6 is a schematic plan view of a retaining wall structure according to another embodiment of the present application.
  • FIG. 7 is a schematic cross-sectional view of a retaining wall structure according to another embodiment of the present application.
  • FIG. 8 is a schematic diagram of a manufacturing method of a display panel according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a manufacturing method of an array substrate according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a manufacturing method of a color filter substrate according to an embodiment of the present application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features; “plurality” means two or more.
  • the term “comprising” and any variations thereof means non-exclusive inclusion, the possibility of the presence or addition of one or more other features, integers, steps, operations, units, components, and/or combinations thereof.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection , It can also be electrical connection; it can be directly connected, it can also be indirectly connected through an intermediate medium, or the internal connection of two components.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection , It can also be electrical connection; it can be directly connected, it can also be indirectly connected through an intermediate medium, or the internal connection of two components.
  • the sealant will be coated on the side of the array substrate, and the alignment liquid on the side of the array substrate cannot be applied beyond the position of the sealant, otherwise the sealant will fall off or display abnormalities.
  • the edge of the alignment liquid should be between the display area and the inner edge of the sealant.
  • a retaining wall is set on the edge of the alignment liquid to prevent the alignment liquid from exceeding the edge of the sealant.
  • one or several supporting column walls are set to form a retaining wall of the alignment liquid, and the height of the retaining wall is more than 10 times the thickness of the alignment liquid.
  • FIG. 1 there is a support pillar protruding alignment liquid barrier 140 on the side of the array substrate, which causes the alignment liquid to flow back and accumulate near the display area, resulting in an increase in the thickness of the alignment liquid, and uneven brightness when the display panel 100 is lit.
  • the alignment liquid flows over the retaining wall 140 and flows under the sealant 130, causing the sealant 130 to fall off.
  • an embodiment of the present application discloses a display device 200.
  • the display device 200 includes a display panel 100.
  • the display panel 100 includes a color filter substrate 110, an array substrate 160 and a sealant 130;
  • the film substrate 110 and the array substrate 160 are paired with a sealant 130.
  • the array substrate 160 includes a substrate 114, a metal layer 162, an insulating layer 161, an alignment layer 120, and a plurality of barrier walls 140; the metal layer 162 is disposed on the substrate 114, and the metal layer 162 is located The non-display area of the substrate 114; the insulating layer 161 is disposed on the substrate 114 and covers the metal layer 162; the alignment layer 120 and the plurality of retaining walls 140 are both disposed on the array substrate 160 On the insulating layer 161, a plurality of retaining walls 140 are arranged to block the flow of the alignment liquid; the plurality of retaining walls 140 are arranged perpendicular to the direction in which the sealant 130 is applied, and the plurality of retaining walls 140 have a height difference Part of the retaining wall 140 is disposed on the insulating layer 161 at a position corresponding to the metal layer 162.
  • a metal layer 162 is used to elevate the retaining wall 140 on the array substrate 160.
  • a plurality of retaining walls 140 with increasing heights are arranged according to the direction in which the alignment liquid flows.
  • the alignment liquid flows to the retaining wall 140, it will be stepped Block, and finally set up an additional retaining wall 150 and groove 113 to effectively prevent the alignment liquid from flowing to the frame and prevent the sealant 130 from falling off; then every time the alignment liquid flows over a retaining wall 140, the flow rate will decrease. Therefore, the alignment liquid will not increase the thickness of the alignment layer 120 due to the flow rate of the alignment liquid after it encounters the barrier wall 140 and cause backflow accumulation, so that the brightness of the display panel 100 is more uniform.
  • the array substrate 160 includes a color resist layer 116 disposed on the insulating layer 161 in the display area.
  • the material of the barrier wall 140 is the same as the material of the color resist layer 116.
  • the barrier wall 140 It includes an upper structure 141 and a lower structure 142.
  • the retaining wall 140 is a single-layer structure or a multi-layer stacked structure; the retaining wall 140 is arranged at a position where the insulating layer 161 does not correspond to the metal layer 162, or is arranged at The position of the insulating layer 161 corresponding to the metal layer 162.
  • the first retaining wall 143, the second retaining wall 144, the third retaining wall 145, the composite retaining wall 146 and the additional retaining wall 150 are arranged on the light shielding layer 111 of the color filter substrate 110 according to the direction in which the alignment liquid flows, Is set to block the flow of the alignment liquid; four of the retaining walls 140 and one of the additional retaining walls 150 are arranged perpendicular to the direction in which the sealant 130 is coated, and the height of the four retaining walls 140 is along the alignment The flow direction of the liquid increases.
  • the materials of the first retaining wall 143, the second retaining wall 144, and the third retaining wall 145 correspond to the red color resist layer, the green color resist layer and the blue color resist layer in sequence.
  • the increasing height of the retaining wall 140 is formed in this way, which can be formed simultaneously with the manufacturing process of the color resist layer 116, which is convenient to manufacture.
  • the barrier wall 140 of various colors has the same height as the corresponding color resist layer 116 of the display area. In this way, the color resist layer 116 required by the barrier wall 140 can be manufactured together when the color resist layer 116 in the display area is manufactured, reducing the required manufacturing process.
  • the composite retaining wall 146 is the highest retaining wall 140 and is formed by stacking the materials of the green color resist layer and the red color resist layer.
  • the color resist layer 116 is stacked to form the highest retaining wall 140, which effectively prevents the alignment liquid from flowing over the retaining wall 140 to the sealant 130 area and causing the sealant 130 to fall off.
  • the green color resist layer and the red color resist layer are both lower than the blue color resist layer, and the height of the combination can exceed the blue color resist layer, but it will not exceed too much to avoid the reflow of the alignment liquid.
  • the composite retaining wall 146 may be formed by stacking the materials of the blue color resist layer and the red color resist layer, or the materials of the blue color resist layer and the green color resist layer; or the red color resist layer, the green color resist layer and The blue color resist layer is formed by stacking materials; it can also be formed by stacking the support pillar 117 on the color resist layer 116.
  • the additional retaining wall 150 is made of a red color resisting layer material.
  • the insulating layer 161 is provided with a groove 113 at a position between the composite retaining wall 146 and the additional retaining wall 150.
  • the width of the groove 113 is smaller than that of the highest retaining wall.
  • the width of the trench 113 is 80 ⁇ m-280 ⁇ m.
  • the width of the groove 113 can also be equal to the distance between the composite retaining wall 146 and the additional retaining wall 150.
  • the width of the trench 113 is 100 ⁇ m-300 ⁇ m.
  • the display panel 100 includes a color filter substrate, the color filter substrate includes a light shielding layer 111 and a substrate 114, and the light shielding layer 111 is disposed in a non-display area of the substrate 114
  • the light-shielding layer 111 includes a groove 112; an alignment layer 120 coated on the color filter substrate 110; a sealant 130 provided on the color filter substrate 110 is configured to seal the display panel 100;
  • the plurality of retaining walls 140 arranged on the light shielding layer 111 of the color filter substrate 110 are arranged to block the flow of the alignment liquid, and the plurality of retaining walls are spaced apart; the plurality of retaining walls 140 It is arranged perpendicular to the coating direction of the sealant 130, and the height of a plurality of the retaining walls 140 increases along the flow direction of the alignment liquid; the first of the retaining walls 140 is arranged in the groove 112.
  • the first retaining wall 140 is arranged in the groove 112, which is relatively stable and prevents the alignment
  • a plurality of the retaining walls 140 can also be arranged in a plurality of the grooves 112, and the depth of the grooves 112 is gradually reduced according to the direction in which the alignment liquid flows.
  • the color filter substrate 110 includes a black matrix 115, a color resist layer 116, and a support column 117 in the display area.
  • the black matrix 115 is disposed in the display area of the substrate 114
  • the color resist layer 116 is disposed on the black matrix 115
  • the support column 117 is disposed on
  • the retaining wall 140 includes an upper structure 141 and a lower structure 142.
  • the lower structure 142 is made of the same material as the color resist layer 116.
  • the upper structure 141 is made of the same material as the support column 117.
  • the retaining wall 140 is a single-layer lower structure 142. Or a stack of the lower structure 142 and the upper structure 141. In this way, the heightened retaining walls 140 are formed one by one.
  • the color resist layer 116 and the supporting column 117 are stacked to form a high retaining wall 140, which effectively prevents the alignment liquid from overflowing. Flowing through the retaining wall 140 to the sealant 130 area causes the sealant 130 to fall off.
  • a plurality of the retaining walls 140 are arranged parallel to the direction A in which the sealant 130 is applied, and the plurality of retaining walls 140 are closely connected, and the retaining walls 140 is formed by stacking a lower layer structure 142 as a color resist layer 116 and a layer structure 141 as a supporting column.
  • an embodiment of the present application also discloses a manufacturing method of a display panel, including the steps:
  • manufacturing an array substrate includes the steps:
  • S13 A plurality of the retaining walls of different heights are arranged on the non-display area of the light shielding layer perpendicular to the sealant coating direction of the display panel, some of the retaining walls are arranged on the insulating layer corresponding to the metal layer s position.
  • the production of a color filter substrate includes the following steps:
  • a plurality of the retaining walls of different heights are arranged on the non-display area of the light-shielding layer perpendicular to the sealant coating direction of the display panel; one of the retaining walls is arranged in the groove.
  • the technical solution of the present application can be widely used in various display panels, such as twisted nematic (TN) display panels, in-plane switching (IPS) display panels, and vertical alignment (Vertical Alignment, VA) display panels.
  • TN twisted nematic
  • IPS in-plane switching
  • VA Vertical Alignment
  • MVA Multi-Domain Vertical Alignment

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

Abstract

La présente invention concerne un écran d'affichage, un procédé de fabrication de l'écran d'affichage et un dispositif d'affichage. L'écran d'affichage (100) comprend : un substrat de réseau (160) ; un substrat de film coloré (110) ; un matériau d'étanchéité (130), le substrat de réseau (160) et le substrat de film coloré (110) étant alignés par le matériau d'étanchéité (130) ; et une pluralité de parois de retenue (140) disposées sur le substrat de réseau (160) et/ou le substrat de film coloré (110), et configurées pour bloquer l'écoulement d'un liquide d'alignement. La pluralité de parois de retenue (140) sont disposées perpendiculairement à une direction de revêtement du matériau d'étanchéité (130) de l'écran d'affichage (100), il y a une différence de hauteur entre la pluralité de parois de retenue (140), et les parois de retenue (140) sont espacées d'une distance.
PCT/CN2020/078009 2019-04-08 2020-03-05 Écran d'affichage, procédé de fabrication de l'écran d'affichage et dispositif d'affichage WO2020207160A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910275099.9A CN110174790B (zh) 2019-04-08 2019-04-08 一种显示面板的阵列基板、制作方法和显示装置
CN201910275098.4 2019-04-08
CN201910275098.4A CN110174789B (zh) 2019-04-08 2019-04-08 一种显示面板的彩膜基板、制作方法和显示装置
CN201910275099.9 2019-04-08

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WO2020207160A1 true WO2020207160A1 (fr) 2020-10-15

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101290417A (zh) * 2007-04-18 2008-10-22 奇美电子股份有限公司 液晶显示面板及其基板的制造方法
CN102830553A (zh) * 2012-08-28 2012-12-19 深圳市华星光电技术有限公司 一种显示面板以及液晶显示器
CN105093705A (zh) * 2015-08-07 2015-11-25 深圳市华星光电技术有限公司 超窄边框显示面板
CN105223739A (zh) * 2015-10-30 2016-01-06 深圳市华星光电技术有限公司 液晶显示面板和液晶显示装置
CN105242445A (zh) * 2015-10-30 2016-01-13 深圳市华星光电技术有限公司 液晶显示面板的制作方法和液晶显示面板
US20170059904A1 (en) * 2015-08-25 2017-03-02 Samsung Display Co., Ltd. Display device and method for manufacturing the same
KR20170038605A (ko) * 2015-09-30 2017-04-07 엘지디스플레이 주식회사 네로우 베젤 디스플레이 장치
US9837445B2 (en) * 2015-10-16 2017-12-05 Samsung Display Co., Ltd. Display device and method for fabricating the same
CN107608143A (zh) * 2017-11-03 2018-01-19 惠科股份有限公司 阵列基板及显示面板
US20180356689A1 (en) * 2016-01-08 2018-12-13 Samsung Display Co. Ltd. Liquid crystal display device and manufacturing method thereof
CN109116617A (zh) * 2018-09-04 2019-01-01 深圳市华星光电技术有限公司 挡墙结构、彩膜阵列基板和液晶显示面板
CN109143689A (zh) * 2018-08-20 2019-01-04 深圳市华星光电技术有限公司 液晶显示面板及其制造方法
CN110174790A (zh) * 2019-04-08 2019-08-27 惠科股份有限公司 一种显示面板的阵列基板、制作方法和显示装置
CN110174789A (zh) * 2019-04-08 2019-08-27 惠科股份有限公司 一种显示面板的彩膜基板、制作方法和显示装置

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101290417A (zh) * 2007-04-18 2008-10-22 奇美电子股份有限公司 液晶显示面板及其基板的制造方法
CN102830553A (zh) * 2012-08-28 2012-12-19 深圳市华星光电技术有限公司 一种显示面板以及液晶显示器
CN105093705A (zh) * 2015-08-07 2015-11-25 深圳市华星光电技术有限公司 超窄边框显示面板
US20170059904A1 (en) * 2015-08-25 2017-03-02 Samsung Display Co., Ltd. Display device and method for manufacturing the same
KR20170038605A (ko) * 2015-09-30 2017-04-07 엘지디스플레이 주식회사 네로우 베젤 디스플레이 장치
US9837445B2 (en) * 2015-10-16 2017-12-05 Samsung Display Co., Ltd. Display device and method for fabricating the same
CN105223739A (zh) * 2015-10-30 2016-01-06 深圳市华星光电技术有限公司 液晶显示面板和液晶显示装置
CN105242445A (zh) * 2015-10-30 2016-01-13 深圳市华星光电技术有限公司 液晶显示面板的制作方法和液晶显示面板
US20180356689A1 (en) * 2016-01-08 2018-12-13 Samsung Display Co. Ltd. Liquid crystal display device and manufacturing method thereof
CN107608143A (zh) * 2017-11-03 2018-01-19 惠科股份有限公司 阵列基板及显示面板
CN109143689A (zh) * 2018-08-20 2019-01-04 深圳市华星光电技术有限公司 液晶显示面板及其制造方法
CN109116617A (zh) * 2018-09-04 2019-01-01 深圳市华星光电技术有限公司 挡墙结构、彩膜阵列基板和液晶显示面板
CN110174790A (zh) * 2019-04-08 2019-08-27 惠科股份有限公司 一种显示面板的阵列基板、制作方法和显示装置
CN110174789A (zh) * 2019-04-08 2019-08-27 惠科股份有限公司 一种显示面板的彩膜基板、制作方法和显示装置

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