WO2014201754A1 - Procédé de fabrication d'espaceur, substrat, appareil d'affichage et produit électronique - Google Patents

Procédé de fabrication d'espaceur, substrat, appareil d'affichage et produit électronique Download PDF

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Publication number
WO2014201754A1
WO2014201754A1 PCT/CN2013/080790 CN2013080790W WO2014201754A1 WO 2014201754 A1 WO2014201754 A1 WO 2014201754A1 CN 2013080790 W CN2013080790 W CN 2013080790W WO 2014201754 A1 WO2014201754 A1 WO 2014201754A1
Authority
WO
WIPO (PCT)
Prior art keywords
spacer
substrate
photosensitive material
transparent polymer
monomer
Prior art date
Application number
PCT/CN2013/080790
Other languages
English (en)
Chinese (zh)
Inventor
李红敏
李小和
刘永
张晓洁
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
Publication date
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 WO2014201754A1 publication Critical patent/WO2014201754A1/fr

Links

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 display technologies, and in particular, to a method for manufacturing a spacer, a substrate, a device, and an electronic product.
  • the display panel of the display device is generally composed of an array substrate, a liquid crystal layer and a color filter substrate.
  • a spacer Post Spacer, PS
  • an acrylic resin mixture solution is often used to prepare a spacer.
  • the main component of the acrylic resin mixture solution is an acrylic resin or an acrylic resin monomer and a photoinitiator.
  • the acrylic resin mixture solution is a light sensitive material, and the acrylic resin is used.
  • the mixture solution is coated on the substrate, and a spacer is formed by a process such as exposure development, and the spacer is preferably formed with various heights to achieve a better support effect.
  • the substrate 3 is coated with an acrylic resin mixture solution 2, and the Halftone mask I includes an opaque film.
  • the Halftone mask I includes an opaque film.
  • the portion of the substrate 3 that is blocked by the opaque portion is not irradiated with light, and the upper acrylic resin mixture is removed after development; where the substrate 3 is irradiated with light, due to the portion of the light-transmitting portion
  • the light intensity is stronger than that of the partially transparent portion, so that the thickness of the acrylic resin mixture remaining after development is relatively large, and a high-level main spacer 4 can be formed on the substrate corresponding to the fully transparent portion, and the corresponding portion is transparent.
  • a sub spacer 5 having a small height is formed on the substrate of the light portion.
  • the existing spacer material manufacturing method requires a halftone mask or a gray tone mask to expose the film, which increases the complexity of the process and increases the production cost; and is affected by the exposure precision, the spacer
  • the size of the object is relatively large, resulting in a small aperture ratio of the display panel, which increases the backlight cost.
  • the technical problem to be solved by the present invention is to provide a method for fabricating a spacer, a substrate, a display device, and an electronic product, which can increase the aperture ratio of the display device and reduce the production cost.
  • a method of making a spacer including:
  • the photosensitive material includes a first transparent polymer or a monomer thereof that is not wetted with the substrate;
  • the substrate on which the spacer pattern is formed is heated at a preset temperature and then cooled to cause the plurality of spacer patterns to be convex to form a spacer.
  • the plurality of spacer patterns have different sizes, and the spacer patterns of different sizes form spacers of different heights.
  • the forming a photosensitive material film for forming a spacer on the substrate comprises: including a photoinitiator, a first transparent polymer or a monomer thereof.
  • the photosensitive material solution further includes a second transparent polymer having a non-wetting property with the first transparent polymer and having wettability with the substrate or a monomer thereof.
  • the second transparent polymer is an acrylic resin. Further, in the above manufacturing method, the preset temperature is greater than a glass transition temperature of the first transparent polymer.
  • the surface energy of the first transparent polymer and the monomer thereof is
  • the surface energy is preferably 10-30 dynes/cm, and the surface energy is most preferably 25 dynss/cm.
  • the first transparent polymer is a styrene resin.
  • the heating the substrate on which the spacer pattern is formed, and forming the spacer pattern to form the spacer comprises:
  • the substrate on which the spacer pattern is formed is heated at a temperature of 150 to 300 degrees Celsius for 10 s 1800 s.
  • the substrate can be heated in a vacuum environment.
  • Embodiments of the present invention also provide a spacer for use in the above manufacturing method.
  • the embodiment of the invention further provides a substrate having a spacer made by the above manufacturing method.
  • Embodiments of the present invention also provide a display device including the substrate as described above.
  • Embodiments of the present invention also provide an electronic product including the display device as described above.
  • the photosensitive material film is subjected to exposure and development to form a plurality of spacer patterns on the substrate, and then the substrate is heated, and the molecules of the first transparent polymer or its monomer start to move at a high temperature due to the first transparent polymerization.
  • the material and its monomer and the substrate are not wetted.
  • the spacer pattern will be convex to form a spacer, thereby reducing the size of the spacer in the horizontal direction, thereby It is advantageous to increase the aperture ratio of the display device.
  • the technical solution of the present invention does not need to use a halftone mask or a gray tone mask for exposure, which reduces the complexity of the process and can reduce the production cost.
  • FIG. 1 is a schematic view showing the formation of a main spacer and a secondary spacer by a halftone mask in the prior art
  • FIG. 2 is a schematic view showing a method of fabricating a spacer according to an embodiment of the present invention.
  • Embodiments of the present invention provide a spacer, a method of manufacturing the same, a substrate, and a display device, which are capable of increasing the aperture ratio of the display device and reducing the production cost, in view of the above problems in the method of fabricating the conventional spacer.
  • Embodiments of the present invention provide a method for fabricating a spacer, including:
  • the photosensitive material includes a first transparent polymer or a monomer thereof that is not wetted with the substrate;
  • the photosensitive material film is exposed and developed to form a plurality of spacer patterns on the substrate, and then the substrate is heated, and the molecules of the first transparent polymer or its monomer start to move at a high temperature. Since the first transparent polymer and its monomer and the substrate are not wetted, according to the principle of minimum surface energy, in order to form a stable structure, the spacer pattern will be convexly formed to form a spacer, thereby reducing the level of the spacer at the level The size in the direction is advantageous to increase the aperture ratio of the display device.
  • the technical solution of the present invention does not need to use a halftone mask or a gray tone mask for exposure, which reduces the complexity of the process and can reduce the production cost.
  • the technical solution of the present invention can realize the formation of spacers of different heights by forming spacer patterns of different sizes, thereby realizing that the formed substrate and the display panel are not physically damaged.
  • the forming a photosensitive material film for forming a spacer on the substrate comprises:
  • a photosensitive material film is formed by coating (spin coating or knife coating) on the substrate, the photosensitive material solution includes a photoinitiator, and includes a first transparent polymer or a monomer thereof.
  • the photosensitive material solution may further include a first transparent polymer a second transparent polymer or a monomer thereof which is non-wetting and has wettability with the substrate, and the spacer pattern thus formed is composed of a first transparent polymer or a monomer thereof, a second transparent polymer or a monomer thereof
  • the molecules of the first transparent polymer or its monomer start to move, because the first transparent polymer and its monomer and the second transparent polymer and the monomer thereof have non-wetting property, according to the principle of minimum surface energy, Forming a stable structure, wherein the first transparent polymer or its monomer will bulge, and also the second transparent polymer or its monomer has a certain protrusion, which can reduce the spacer in the horizontal direction
  • the size is advantageous to increase the aperture ratio of the display device.
  • the preset temperature needs to be greater than a glass transition temperature of the first transparent polymer, so that the molecules of the first transparent polymer or its monomer can be caused to start moving.
  • the surface energy of the first transparent polymer and its monomer is 5 x 50 dynes/cm.
  • the second transparent polymer may be a acryl resin which is commonly used to make a spacer
  • the first transparent polymer may be a styrene resin having non-wetting property with an acrylic resin
  • the substrate on which the spacer pattern is formed is heated at a temperature of 150-300 degrees Celsius for 10 s to 1800 s, preferably in a vacuum, and after heating, the substrate on which the spacer is formed is cooled to room temperature, and the substrate is completed. Production of spacers.
  • Embodiments of the present invention also provide a spacer for use in the above manufacturing method.
  • the embodiment of the invention further provides a substrate having a spacer made by the above manufacturing method.
  • the substrate may be, but not limited to, an array substrate, a color filter substrate, or the like.
  • Embodiments of the present invention also provide a display device including the substrate as described above.
  • the structure of other parts of the display device can be referred to the prior art, and will not be described in detail herein.
  • the display device can be a liquid crystal display panel, an electronic paper, an OLED (Organic Light Emitting Diode) panel, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, etc., having any display function, as long as the display device It is only necessary to provide a spacer on the substrate of the device.
  • Embodiments of the present invention also provide an electronic product including the display device as described above.
  • Embodiment 1 The method for fabricating the spacer of the present invention will be described in detail below with reference to the drawings and specific embodiments: Embodiment 1
  • a plurality of spacers of different heights can be formed on the substrate, wherein the substrate can be an array substrate or a color filter substrate.
  • This embodiment specifically includes the following steps:
  • Step ah forming a photosensitive material solution, the main component of the photosensitive material solution being a first transparent polymer or a monomer thereof, a photoinitiator, wherein the first transparent polymer and the monomer thereof and the substrate are not wetted, the first transparent polymer
  • the molecular weight may range from several thousand to one million.
  • the first transparent polymer may be selected from styrene resins;
  • Step a2 spin-coating or scraping the photosensitive material solution on the substrate to form a film of the photosensitive material, wherein the size of the spacer can be reduced by controlling the thickness of the photosensitive material film, and the thickness of the photosensitive material film is smaller.
  • the size of the finally formed spacer is also smaller; in one embodiment of the present invention, the photosensitive material solution may be spin-coated or blade-coated on the substrate to form a film of the photosensitive material, and the coater is only used.
  • Step a3 Film of the photosensitive material on the substrate Exposure development is performed to form a plurality of spacer patterns of different sizes on the substrate.
  • the single-tone mask can be used for exposure, which reduces the complexity of the process and reduces the production cost.
  • the size of the spacer pattern is determined by the resolution of the exposure machine, ranging from several micrometers to several tens of micrometers; in one embodiment of the invention, the exposure material can be used for exposure and development of the photosensitive material film on the substrate.
  • the exposure machine is only an exemplary embodiment, and other types of suitable components can be used as long as the photosensitive material film on the substrate can be exposed and developed;
  • the step of heat-treating the substrate on which the spacer pattern is formed the heating temperature is required to be greater than the glass transition temperature of the styrenic resin, specifically, heating at a temperature of 150-300 Torr for 10 s to 1800 s, preferably in a vacuum.
  • the substrate is heated to avoid external influence on the spacer and reduce impurities in the spacer.
  • the molecular motion of the styrenic resin begins. Since the styrene resin does not wet with the substrate, the interface energy between them is large.
  • the spacer pattern in order to form a stable structure, the spacer pattern will be
  • the protrusions form spacers, and the spacer patterns of different sizes will form spacers of different heights, and the larger the size of the spacer pattern, the greater the height of the spacers formed;
  • Step a5 cooling the substrate on which the spacer is formed, preferably cooling to room temperature in a vacuum
  • the spacer can be fabricated to obtain a substrate on which the spacer is formed.
  • the substrate on which the spacer pattern is formed may be heated and cooled using a vacuum cover with a heating device, and the vacuum cover is merely an exemplary embodiment, as long as it can be formed
  • the substrate of the spacer pattern is heated and cooled, and other types of suitable components can also be used.
  • the increase in the height of the spacer pattern will result in a reduction in the size in the horizontal direction, which can greatly reduce the size of the finally formed spacer, which is advantageous in increasing the aperture ratio of the display device.
  • the height of the spacer can be controlled by controlling the size of the spacer pattern, and a plurality of spacers can be formed on the substrate, and the spacer can be realized by using a single-tone mask for exposure. The production can reduce the complexity of the process and reduce the production cost.
  • a plurality of spacers of different heights can be formed on the substrate, wherein the substrate can be an array substrate or a color filter substrate.
  • This embodiment specifically includes the following steps:
  • Step bl forming a photosensitive material solution, adding a first transparent polymer or a monomer thereof to a solution of an acrylic resin mixture used to prepare a spacer to form a photosensitive material solution, wherein the first transparent polymer and the acrylic resin are not mutually Infiltration, the first transparent polymer may have a molecular weight ranging from several thousand to one million. Specifically, the first transparent polymer may be selected from a styrene resin;
  • Step b2 As shown in (a) of FIG. 2, a photosensitive material solution is spin-coated or blade-coated on the substrate 3 to form a photosensitive material film 6, wherein the spacer can be reduced by controlling the thickness of the photosensitive material film.
  • the size of the object the smaller the thickness of the photosensitive material film, the smaller the size of the finally formed spacer;
  • Step b3 As shown in (b) iff of FIG. 2, the photosensitive material film 6 on the substrate 3 is exposed and developed, and a plurality of spacer patterns 8 of different sizes are formed on the substrate. In this step, a single tone mask is used. The exposure of the board can reduce the complexity of the process and reduce the production cost. Wherein, the size of the spacer pattern 8 is determined by the resolution of the exposure machine, ranging from several micrometers to several tens of micrometers;
  • Step b4 heat-treating the substrate 3 on which the spacer pattern 8 is formed, and the heating temperature is required to be larger than the glass transition temperature of the styrene resin, and specifically, may be heated at a temperature of 150 to 300 Torr for 10 s to 1800 s, preferably The substrate is heated in a vacuum to avoid external influence on the spacer and reduce impurities in the spacer. At high temperatures, the molecular motion of styrenic resins and their monomers begins. Because of the non-wetting property of styrenic resins and acrylic resins, the interface energy between them is large.
  • the styrene-like W grease and its monomer in the spacer pattern 8 will be convex, and the acrylic resin and the substrate are wettable, and the finally formed styrene-based resin is separated.
  • the spacers 7 of different sizes will form spacers of different heights, and the larger the size of the spacer pattern, the larger the height of the spacers formed;
  • Step 5 The substrate on which the spacer is formed is cooled, preferably cooled to room temperature in a vacuum, to complete the preparation of the spacer, and a substrate on which the spacer is formed is obtained.
  • the styrene resin and its monomer bulge will also drive the acrylic resin and its monomer to have certain protrusions. Due to the principle of mass conservation, the increase of the height of the spacer pattern will lead to the reduction of the size in the horizontal direction. This can reduce the size of the finally formed spacer in the horizontal direction, thereby contributing to an increase in the aperture ratio of the display device.
  • the height of the spacer can be controlled by controlling the size of the spacer pattern, and a plurality of spacers can be formed on the substrate, and the spacer can be realized by using a single-tone mask for exposure. The production can reduce the complexity of the process and reduce the production cost.
  • the photosensitive material solution includes one or two kinds of transparent polymers. Further, the photosensitive material solution may further include two or more kinds of transparent polymers, as long as one of the transparent polymers and other transparent ones are satisfied. The polymer and the substrate are not wetted. In the actual production process, in order to reduce the complexity of the process, in general, the photosensitive material solution includes one or two kinds of transparent poly.
  • the photosensitive material solution includes one or two kinds of transparent poly.

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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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

La présente invention porte sur un espaceur, un procédé de fabrication associé, un substrat et un appareil d'affichage. Le procédé de fabrication de l'espaceur comprend : former, sur un substrat (3), un film (6) mince de matière photosensible utilisé pour la fabrication de l'espaceur, la matière photosensible comprend un premier polymère transparent ou un monomère associé, le premier polymère transparent ne s'infiltrant pas dans le substrat (3) ; exposer et développer le film (6) mince de matière photosensible et former de multiples motifs (8) d'espaceur ayant différentes dimensions sur le substrat (3) ; et à une température préréglée, chauffer le substrat (3) sur lequel les motifs (8) d'espaceur sont formés, qui puis, refroidir pour permettre aux motifs (8) d'espaceur de faire saillie pour former les espaceurs, les motifs (8) d'espaceur ayant différentes dimensions formant des espaceurs ayant différentes hauteurs. À l'aide des solutions techniques selon la présente invention, le rapport d'ouverture d'un appareil d'affichage peut être augmenté et le coût de production peut être réduit.
PCT/CN2013/080790 2013-06-21 2013-08-05 Procédé de fabrication d'espaceur, substrat, appareil d'affichage et produit électronique WO2014201754A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310250193.1 2013-06-21
CN201310250193.1A CN103336390B (zh) 2013-06-21 2013-06-21 隔垫物及其制作方法、基板及显示装置

Publications (1)

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WO2014201754A1 true WO2014201754A1 (fr) 2014-12-24

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CN (1) CN103336390B (fr)
WO (1) WO2014201754A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105549273A (zh) * 2016-02-03 2016-05-04 京东方科技集团股份有限公司 制作隔垫物的方法、基板、显示面板及显示装置
CN108983504A (zh) 2017-05-31 2018-12-11 京东方科技集团股份有限公司 液晶面板及其制造方法、液晶显示器
CN111065973A (zh) * 2017-09-29 2020-04-24 富士胶片株式会社 电路布线的制造方法及触控面板的制造方法
CN109243304B (zh) * 2018-08-07 2021-06-29 苏州星烁纳米科技有限公司 显示面板及其制备方法

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CN1841193A (zh) * 2005-03-15 2006-10-04 Jsr株式会社 放射线敏感性树脂组合物、由其形成的凸起和间隔物、以及具有它们的液晶显示元件
CN1841197A (zh) * 2005-04-01 2006-10-04 Jsr株式会社 放射线敏感性树脂组合物、由该组合物形成的突起和分隔物及其形成方法、及液晶显示元件
CN1950751A (zh) * 2004-05-06 2007-04-18 Jsr株式会社 放射线敏感性树脂组合物、间隔物及其形成方法
CN101416103A (zh) * 2006-04-06 2009-04-22 日立化成工业株式会社 液晶间隔物形成用油墨及使用了该油墨的液晶显示装置

Patent Citations (4)

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CN1950751A (zh) * 2004-05-06 2007-04-18 Jsr株式会社 放射线敏感性树脂组合物、间隔物及其形成方法
CN1841193A (zh) * 2005-03-15 2006-10-04 Jsr株式会社 放射线敏感性树脂组合物、由其形成的凸起和间隔物、以及具有它们的液晶显示元件
CN1841197A (zh) * 2005-04-01 2006-10-04 Jsr株式会社 放射线敏感性树脂组合物、由该组合物形成的突起和分隔物及其形成方法、及液晶显示元件
CN101416103A (zh) * 2006-04-06 2009-04-22 日立化成工业株式会社 液晶间隔物形成用油墨及使用了该油墨的液晶显示装置

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CN103336390B (zh) 2015-09-09

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