WO2015021716A1 - Espaceur, son procédé de fabrication et panneau de cristaux liquides comprenant un espaceur - Google Patents

Espaceur, son procédé de fabrication et panneau de cristaux liquides comprenant un espaceur Download PDF

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Publication number
WO2015021716A1
WO2015021716A1 PCT/CN2013/089504 CN2013089504W WO2015021716A1 WO 2015021716 A1 WO2015021716 A1 WO 2015021716A1 CN 2013089504 W CN2013089504 W CN 2013089504W WO 2015021716 A1 WO2015021716 A1 WO 2015021716A1
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WO
WIPO (PCT)
Prior art keywords
substrate
spacer
component
color filter
spacer according
Prior art date
Application number
PCT/CN2013/089504
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English (en)
Chinese (zh)
Inventor
孙东领
尹小斌
Original Assignee
合肥京东方光电科技有限公司
京东方科技集团股份有限公司
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
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Application filed by 合肥京东方光电科技有限公司, 京东方科技集团股份有限公司 filed Critical 合肥京东方光电科技有限公司
Publication of WO2015021716A1 publication Critical patent/WO2015021716A1/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
    • G02F1/1339—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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13398—Spacer materials; Spacer properties

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular to a spacer and a method for preparing the same, and a liquid crystal panel including the spacer. Background technique
  • TFT LCD Thin Film Transistor Liquid Crystal Display
  • CF substrate a display substrate with a wide range of sizes, low power consumption, and low radiation, including a relatively arranged array substrate (ie, TFT substrate) and a color film (ie, Color Filter). , referred to as CF substrate, and a liquid crystal layer filled between the two.
  • CF substrate a relatively arranged array substrate
  • CF substrate a color film
  • CF substrate ie, Color Filter
  • CF substrate color film
  • liquid crystal layer filled between the two.
  • a plurality of spacers 200 are disposed between the array substrate 300 and the color filter substrate 100, and a plurality of the spacers 200 are spaced apart.
  • the spacer 200 should have a certain supporting ability and a good elastic deformation ability.
  • the spacers 200 are divided into two types, one is a spacer 200 that is free between the upper and lower substrates (ie, the color film substrate 100 and the array substrate 300), and is generally spherical, and is called a Ball Spacer (referred to as BS). The other is a spacer 200 fixed on the color film substrate, which is generally cylindrical, called Post Spacer (referred to as PS). Currently, the second type of spacer 200 is commonly used.
  • the spacer 200 is fixed on the color filter substrate 100.
  • the spacer 200 is generally formed on the color filter substrate 100 by a process such as exposure, development, and etching using a photoresist.
  • the 200 is mostly made of a single material, so that it is difficult to simultaneously ensure the support ability and elastic deformation ability of the spacer 200, because for the same material, the two properties (ie, support ability and elastic deformation ability) are mutually inhibited. If the material used for the spacer 200 is too hard, the supporting ability is good, but the elastic deformation ability is naturally poor.
  • the spacer 200 may scratch the array substrate 300, thereby causing the liquid crystal panel to leak light; If the material used for the spacer 200 has a good elastic deformation ability, when the elastic deformation is too large, the supporting ability thereof is limited. When the force is applied, the spacer 200 does not have the intended supporting effect. At the same time, the spacer 200 may also undergo vertical expansion deformation or left and right twist deformation, which may easily cause the top end of the spacer 200 (ie, the spacer 200 and The one end of the array substrate 300 is in contact with the contact position, that is, the spacer 200 is unstable, which is caused by the displacement of the spacer 200, which causes the liquid crystal panel to cause chromatic aberration during display. Summary of the invention
  • the technical problem to be solved by the present invention includes providing a spacer for avoiding scratching of a substrate and avoiding bending deformation and causing chromatic aberration of the liquid crystal panel, and a preparation method thereof, in view of the above-mentioned deficiencies of the existing spacers And a liquid crystal panel including the spacer.
  • the technical solution adopted to solve the technical problem of the present invention is to provide a spacer disposed between a color filter substrate of a liquid crystal panel and an array substrate, wherein the spacer comprises a first component and a second component.
  • the first component is disposed on the first substrate, the second component is disposed between the first component and the second substrate, and the height of the first component is smaller than the total of the spacers in a direction perpendicular to the first substrate Height
  • the first component and the second component are a concave-convex structure, and the hardness of the material used by the first component is greater than the hardness of the material used by the second component, and the elasticity of the material used by the second component is greater than
  • the first substrate is a color filter substrate, and the second substrate is an array substrate; or the first substrate is an array substrate, and the second substrate is a color film substrate.
  • the first member of the spacer of the present invention uses a relatively hard material, and the second member has a relatively good material elasticity, and the structures of the two members are concave-convex, so that when subjected to an external force, only one hardness is used.
  • the spacer of the present invention does not scratch the substrate in contact with it, and the spacer of the present invention is opposed to a spacer that uses only a material having a better elasticity.
  • the first part is made of a material having a relatively high hardness and capable of fixing a second member which is made of a material having better elasticity, so that the material used in the second member is not deformed due to the better elasticity of the material, and is deformed when subjected to an external force. , thereby avoiding chromatic aberration when the liquid crystal panel is displayed.
  • the first component is fixed on the first substrate, and the second component is fixed on the second substrate.
  • the first member is fixed to the first substrate, and the second member is separately provided on the first member from the second substrate.
  • the first component is a concave structure
  • the second component is a convex structure
  • the total height of the spacer in a direction perpendicular to the first substrate is equal to the height of the second member.
  • the height of the second member in a direction perpendicular to the first substrate is smaller than the total height of the spacer.
  • the first member has a convex structure
  • the second member has a concave structure
  • the ratio of the height of the first member to the total height of the spacer in a direction perpendicular to the first substrate is greater than or equal to 1/2 and less than or equal to 4/5.
  • the second member has a concave shape at an intermediate portion of one end in contact with the second substrate.
  • the intermediate portion has a concave curved surface.
  • the second member is at one end in contact with the second substrate and is less than or equal to 2/3.
  • the material of the first member is any one of aluminum, molybdenum, silicon oxide, silicon nitride, and indium tin oxide.
  • the material of the second component is: a carbonate resin or a flexible polyethylene.
  • the spacer has a cylindrical shape or a truncated cone shape.
  • the present invention also provides a method for preparing the above spacer, comprising the steps of: forming a first component pattern on the first substrate;
  • a pattern of the second component is formed on the first component to form the spacer.
  • the preparation method of the spacer provided by the invention is simple and easy to implement.
  • the present invention also provides a method for preparing the above-mentioned spacer, which comprises the following steps Step:
  • the first substrate and the second substrate are paired to form a spacer.
  • the present invention also provides a liquid crystal panel comprising a color filter substrate and an array substrate, and a spacer disposed between the color filter substrate and the array substrate of the liquid crystal panel, wherein the spacer is the spacer.
  • Figure 1 is a structural view of a conventional spacer
  • Figure 2 is a structural view showing a spacer of Embodiment 1 of the present invention.
  • Figure 3 is another structural view of the spacer of the first embodiment of the present invention
  • Figure 4 is a structural view of the spacer of the first embodiment of the present invention
  • Figure 5 is an embodiment of the present invention.
  • the reference numerals are: 100, a color film substrate; 200, a spacer; 201, a first component; 2011, a first component material layer; 202, a second component; 2021, a second component material layer; 300, an array substrate .
  • the spacer 200 provided in this embodiment is disposed between the color filter substrate 100 of the liquid crystal panel and the array substrate 300.
  • the spacer 200 includes the first component 201 and the second component 202. .
  • the first component 201 is disposed on the color film substrate 100 (or the array substrate 300), and the second component 202 is disposed on the first component 201, that is, the second component 202 is disposed on the first component 201 and the array substrate 300 ( Or the color film substrate 100), and the height of the first member 201 in the direction perpendicular to the color filter substrate 100 (or the array substrate 300) is smaller than the total height of the spacer 200 (ie, another substrate) Not in contact with the first component 201, but only in contact with the first component 202); the first component 201 and the second component 202 are in a concave-convex configuration, and the first component 201 is made of a material having a greater hardness than the second component
  • the material used in component 202 is of a hardness
  • the spacer 200 as being disposed on the color filter substrate 100 as an example.
  • the first member 201 having a larger hardness is fixed on the color filter substrate 100
  • the second member 202 having a larger elasticity is disposed on the first member 201, and the structure thereof is matched with the structure of the first member 201, wherein, the second The member 202 may be disposed on the first member 201 separately from the array substrate, or may have one end fixed to the array substrate 300 and the other end having a shape that is concave-convex with the first member 201.
  • the second component of the spacer 200 of the present embodiment is opposed to the spacer 200 using only one of the more rigid materials.
  • 202 does not scratch the array substrate 300 in contact with the second member 202, so that the liquid crystal panel can be prevented from leaking light;
  • the spacer 200 of the present embodiment is opposed to the spacer 200 using only a material having better elasticity.
  • the first member 201 is made of a material having a relatively high hardness, and is capable of fixing the second member 202 which is made of a material having better elasticity, so that the material of the second member 202 is not subjected to an external force due to the better elasticity of the material used.
  • the structure in which the first member 201 and the second member 202 are concave-convex fit can prevent the first member and the second member from sliding relative to each other.
  • the structure of the spacer 200 is stable.
  • the material of the first member 201 is any one of aluminum, molybdenum, silicon oxide, silicon nitride, indium tin oxide, or other relatively hard material.
  • the material of the second member 202 is a carbonate resin or a flexible polyethylene, and other materials having better elasticity can of course be used.
  • the first member 201 is a concave structure
  • the second member 202 is a convex structure, that is, the concave portion of the first member 201 is a convex portion of the second member 202. It is completely wrapped, and the concave portion of the first member 201 and the convex portion of the second member 202 are tightly fitted to each other. Due to the first part 201 The hardness is relatively large and is provided on the color filter substrate 100, so that the structure of the spacer 200 is stable.
  • the total height of the spacer 200 in the direction perpendicular to the color filter substrate 100 is equal to the height of the second component 202, that is, It is said that the convex portion of the second member 202 penetrates through the concave portion of the first member 201 and is in contact with the color filter substrate 100, at which time the second member 202 is tightly wrapped and fixed by the first member 201, so that the spacer 200 The stability is better.
  • the height of the second member 202 in the direction perpendicular to the color filter substrate 100 is smaller than the total height of the spacer 200, that is, the first The convex portion of the two members 202 does not penetrate the concave portion of the first member 201, so that it is not in contact with the color filter substrate 100.
  • the first member 201 of the structure can also fix the second member 202.
  • the first member 201 is a convex structure
  • the second member 202 is a concave structure, that is, the concave portion of the second member 202 will be The convex portion of the first member 201 is tightly wrapped.
  • the spacer 200 is merely affixed to the color filter substrate 100, the spacer 200 provided in this embodiment may be fixed on the array substrate 300.
  • the ratio of the height of the first member 201 to the total height of the spacer 200 in a direction perpendicular to the color filter substrate 100 (or the array substrate 300) is greater than or equal to 1/2 and less than or equal to 4/5. That is, when the first member 201 is fixed on one of the two substrates (the color filter substrate 100 or the array substrate 300), the second substrate 201 is in contact with the other substrate (the array substrate 300 or the color filter substrate 100). Component 202.
  • the width, the height of the bottom portion of the first member 201 in contact with the color filter substrate 100 (or the array substrate 300), and the first direction in the direction perpendicular to the color filter substrate 100 (or the array substrate 300) may be set according to different conditions.
  • the ratio between the height of the component 201 and the total height of the entire spacer 200 is such that the structure of the spacer 200 is more stable, and thus the two substrates (ie, the array substrate 300 and the color filter substrate 100) can still be subjected to an external force. Maintain a relatively stable distance.
  • the shape of the intermediate portion of the second member 202 at the end (hereinafter referred to as the tip end) which is in contact with the array substrate 300 (or the color filter substrate 100) is a concave curved surface.
  • the ratio of the area of the concave region at the top end of the second member 202 to the area of the surrounding flat region usually the ratio of the two is greater than or equal to 1/3 and less than or equal to 2/3 to ensure The stability of the spacer 200 and the substrate (the color filter substrate 100 or the array substrate 300) provided on the top end thereof when not subjected to an external force.
  • the top end of the second member 202 is pressed by an external force, since the elasticity of the second member 202 is good, the intermediate portion of the top end of the second member 202 is subjected to a force, and the concave curved surface thereof is opposite to the array substrate 300 above it.
  • the intermediate portion of the top end of the second member 202 can also be other concave patterns, as long as the intermediate portion of the top end of the second member 202 is concave, which is within the scope of the present invention.
  • the spacer 200 has a cylindrical shape or a truncated cone shape.
  • other shapes are also possible as long as they can support the two substrates (the color filter substrate 100 and the array substrate 300).
  • Example 2
  • the present embodiment provides a method for preparing a spacer 200 for the spacer 200 of the embodiment 1, which includes the following steps:
  • Step 1 Apply a first component material layer 2011 on the color filter substrate 100 or the array substrate 300, and form a pattern of the first member 201 by a patterning process (including processes such as exposure, development, and etching).
  • the material of the first component material layer 2011 is a hard material such as aluminum, molybdenum, silicon oxide, silicon nitride or indium tin oxide.
  • the height of the first member 201 in the direction perpendicular to the color filter substrate 100 or the array substrate 300 can be controlled by the thickness of the coated first component material layer 2011.
  • Step 2 applying a second component material layer 2021 on the substrate on which the first component 201 is formed, and forming a pattern of the second component 202 by a patterning process.
  • the material of the second component material layer 2021 is relatively good in elasticity such as carbonate resin or flexible polyethylene. s material.
  • the second component can be controlled by controlling the thickness of the second component material layer 2021.
  • the shape of the middle portion of the top end of the second member 202 is a concave arc surface, and forming the concave curved surface includes the following steps:
  • the positive resist is developed to remove the positive photoresist in the exposed area to form a concave curved surface.
  • forming the concave curved surface includes the following steps:
  • the negative photoresist is subjected to development processing to remove the negative photoresist in the unexposed regions, thereby forming a concave curved surface.
  • a concave curved surface is formed at the top end of the second member 202, so that when the top end of the second member 202 is pressed by an external force, since the elasticity of the second member 202 is better, the middle of the top end of the second member 202 at this time Due to the force, the concave curved surface of the region is bonded to the array substrate 300 or the color filter substrate 100 above the substrate, thereby increasing the top end of the second member 202 of the spacer 200 and the array substrate 300 or the color filter substrate contacting the spacer member 200. 100 frictional forces, thereby preventing the spacer 200 from slipping.
  • the mask used above is a halftone mask.
  • a halftone mask different areas of exposure can be simultaneously exposed to different requirements.
  • other masks such as a gray scale mask can also be used.
  • the spacer 200 for supporting the array substrate 300 and the color filter substrate 100 is finally formed by the above steps.
  • Example 3 This embodiment provides a method for preparing another spacer 200 for the spacer 200 described in Embodiment 1, which includes the following steps:
  • the two substrates are paired to form a spacer 200 sandwiched between the two substrates.
  • the first substrate is a color filter substrate, and the second substrate is an array substrate; or the first substrate is an array substrate, and the second substrate is a color filter substrate.
  • the first member 201 is formed on the color filter substrate 100, and the second member 202 is formed on the array substrate 300.
  • the first member 201 is formed on the array substrate 300, and the second member is formed on the color filter substrate 100. 202.
  • first substrate and the second substrate are aligned, that is, the color film substrate 100 and the array substrate 300 are paired with the first component 201 and the second component sandwiched between the color filter substrate 100 and the array substrate 300.
  • 202 is the spacer 200, thereby forming the spacer 200.
  • the spacer provided by the embodiment is prepared by preparing the first component 201 and the second component 202 of the spacer 200 on the first substrate and the second substrate, respectively, and preparing the spacer provided in Embodiment 3.
  • the method is to sequentially prepare the first component 201 and the second component 202 of the spacer 200 on one substrate (the color film substrate 100 or the array substrate 300), that is, to prepare the entire spacer 200 on one substrate, therefore,
  • the heights of the first member 201 and the second member 202 of the embodiment are significantly lower with respect to the height of the entire spacer 200 of Embodiment 3, respectively, so the preparation process of the present embodiment is easier.
  • the embodiment provides a liquid crystal panel including an array substrate 300, a color filter substrate 100, and a spacer 200 disposed between the color filter substrate 100 and the array substrate 300 of the liquid crystal panel, wherein the spacer 200 is implemented.
  • the liquid crystal panel of the present embodiment includes the spacer 200 in Embodiment 1, it is not scratched by the external force and the second member 202 when subjected to an external force.
  • the substrate (the color film substrate 100 or the array substrate 300) is contacted to prevent light leakage of the liquid crystal panel, and at the same time, the spacer 200 is not displaced due to an external force, thereby causing chromatic aberration of the liquid crystal panel during display.

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

Abstract

La présente invention porte sur un espaceur (200) apte à empêcher l'espaceur (200) de réaliser une abrasion d'un substrat et d'empêcher un panneau de cristaux liquides de générer une aberration chromatique due à une flexion et une distorsion. L'espaceur (200) est disposé entre un substrat (100) de film coloré et un substrat (300) en réseau du panneau de cristaux liquides, et comprend un premier composant (201) et un second composant (202). Le premier composant (201) est disposé sur un premier substrat, le second composant (202) est disposé entre le premier composant (201) et un second substrat, et la hauteur du premier composant (201) est inférieure à la hauteur totale de l'espaceur (200) dans la direction perpendiculaire au premier substrat. Le premier composant (201) et le second composant (202) sont de structures réglées d'une manière concave-convexe, la rigidité d'une matière utilisée par le premier composant (201) est supérieure à celle d'une matière utilisée par le second composant (202) et l'élasticité de la matière utilisée par le second composant (202) est supérieure à celle de la matière utilisée par le premier composant (201). Le premier substrat est le substrat (100) de couleur et le second substrat est le substrat (300) en réseau, ou le premier substrat est le substrat (300) en réseau et le second substrat est le substrat (100) de couleur. La présente invention porte également sur un procédé de fabrication de l'espaceur (200) et un panneau de cristaux liquides comprenant l'espaceur (200).
PCT/CN2013/089504 2013-08-14 2013-12-16 Espaceur, son procédé de fabrication et panneau de cristaux liquides comprenant un espaceur WO2015021716A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310354197.4A CN103439836B (zh) 2013-08-14 2013-08-14 一种隔垫物及其制备方法、液晶面板
CN201310354197.4 2013-08-14

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WO2015021716A1 true WO2015021716A1 (fr) 2015-02-19

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US20160187703A1 (en) * 2014-12-30 2016-06-30 Shenzhen China Star Optoelectronics Technology Co. Ltd. Liquid crystal panel and liquid crystal displaying device
EP3633730A4 (fr) * 2017-05-27 2021-02-24 BOE Technology Group Co., Ltd. Substrat et son procédé de préparation, panneau d'affichage et dispositif d'affichage

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CN113061840B (zh) * 2021-03-15 2023-06-23 京东方科技集团股份有限公司 蒸镀掩膜板及其制作方法、显示面板
CN114361356B (zh) * 2021-11-29 2024-01-02 昆山国显光电有限公司 一种显示面板及显示装置
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