WO2018133150A1 - 配向膜印刷版及其制作方法 - Google Patents

配向膜印刷版及其制作方法 Download PDF

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Publication number
WO2018133150A1
WO2018133150A1 PCT/CN2017/073959 CN2017073959W WO2018133150A1 WO 2018133150 A1 WO2018133150 A1 WO 2018133150A1 CN 2017073959 W CN2017073959 W CN 2017073959W WO 2018133150 A1 WO2018133150 A1 WO 2018133150A1
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Prior art keywords
alignment film
circular
printing plate
diameter
circular protrusions
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PCT/CN2017/073959
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English (en)
French (fr)
Inventor
赵凯祥
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武汉华星光电技术有限公司
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Priority to US15/506,245 priority Critical patent/US10464365B2/en
Publication of WO2018133150A1 publication Critical patent/WO2018133150A1/zh

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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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/12—Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/16—Coating processes; Apparatus therefor

Definitions

  • the present invention relates to the field of display device processes, and in particular, to an alignment film printing plate and a method of fabricating the same.
  • LCD Liquid crystal display
  • PDA personal digital assistant
  • digital camera computer screen or laptop screen.
  • liquid crystal display devices which include a casing, a liquid crystal panel disposed in the casing, and a backlight module disposed in the casing.
  • the structure of the liquid crystal panel is composed of a color filter substrate (CF), a thin film transistor array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate), and a liquid crystal layer (Liquid Crystal Layer) disposed between the two substrates.
  • the working principle is to control the rotation of the liquid crystal molecules of the liquid crystal layer by applying a driving voltage on the two glass substrates, and refract the light of the backlight module to generate a picture.
  • a polyimide (PI) alignment film is coated on each side of the array substrate and the color filter substrate adjacent to the liquid crystal layer.
  • the branching group in the PI alignment film has a strong interaction between the liquid crystal molecules and the liquid crystal molecules, and has an anchoring action on the liquid crystal molecules, so that the liquid crystal molecules can be aligned at a certain polar angle inclined with respect to the surface of the PI alignment film.
  • the polar angle is the pretilt angle of the liquid crystal layer.
  • the pretilt angle can control the orientation of the liquid crystal molecules, prevent the occurrence of anti-dip domains in the liquid crystal layer, and can affect the transmittance and voltage curve of the liquid crystal layer to a certain extent.
  • the appropriate pretilt angle can lower the threshold voltage and accelerate the response speed of the liquid crystal. .
  • the prior art alignment film printing plate comprises a substrate protective layer 100 and a negative film 200 laminated on the substrate protective layer 100.
  • the negative film 200 is uniformly distributed with a plurality of diameters.
  • the same and larger circular projections 201 are accommodated between the circular projections 201, and the liquid PI between the circular projections 201 is pressed onto the substrate during printing.
  • the circular protrusions 201 are large everywhere in the film 200, a large amount of liquid PI material is accommodated between the plurality of circular protrusions 201 located at the edge of the film 200, resulting in a higher precision of the boundary 500 of the PI alignment film at the time of printing. Difficult to control, the boundary 500 of the PI alignment film undulates with the circular protrusion 201, which is disadvantageous for the improvement of printing precision.
  • Another object of the present invention is to provide a method for producing an alignment film printing plate, which can improve the printing accuracy of the alignment film boundary when applied to a printing alignment film.
  • the present invention firstly provides an alignment film printing plate comprising a substrate protective layer and a negative film laminated on the substrate protective layer; the negative film comprising a plurality of first circles distributed around the periphery thereof a shaped protrusion, and a plurality of second circular protrusions distributed in the middle of the film surrounded by the plurality of first circular protrusions; the diameter of the first circular protrusion is smaller than the second circular protrusion diameter of.
  • the material of the substrate protective layer is polyethylene terephthalate.
  • the material of the backsheet is an organic photoresist.
  • the diameter of the first circular protrusion is 1/3 or 1/4 of the diameter of the second circular protrusion.
  • the invention also provides a method for manufacturing an alignment film printing plate, comprising the following steps:
  • Step S1 providing a substrate protection layer
  • Step S2 coating an organic photoresist material on the substrate protective layer, exposing and developing the coated organic photoresist material using a photomask, and then curing the organic photoresist material to form a laminate on the liner a film on the bottom protective layer;
  • the backsheet includes a plurality of first circular protrusions distributed around its peripheral edge, and a plurality of second circular protrusions distributed in the middle of the backsheet surrounded by the plurality of first circular protrusions;
  • the diameter of the first circular projection is smaller than the diameter of the second circular projection.
  • the organic photoresist material is cured by baking.
  • the material of the substrate protective layer is polyethylene terephthalate.
  • the diameter of the first circular protrusion is 1/3 or 1/4 of the diameter of the second circular protrusion.
  • the present invention also provides an alignment film printing plate comprising a substrate protective layer and a backsheet laminated on the substrate protective layer; the negative film comprising a plurality of first circular protrusions distributed around the periphery thereof, and a plurality of second circular protrusions distributed in the middle of the film surrounded by the plurality of first circular protrusions; a diameter of the first circular protrusions is smaller than a diameter of the second circular protrusions;
  • the material of the substrate protective layer is polyethylene terephthalate
  • the material of the film is an organic photoresist.
  • the present invention provides an alignment film printing plate, which is provided with a plurality of first circular protrusions on a peripheral edge of the film, and is disposed in the middle of the film to be surrounded by the plurality of first circular protrusions a plurality of second circular protrusions, and the diameter of the first circular protrusion is smaller than the second circle
  • the diameter of the protrusion is such that when the alignment film printing is performed by the alignment film printing plate, the liquid alignment materials are contained between the first circular protrusions located at the peripheral edges of the film, thereby reducing the liquid alignment at the boundary of the alignment film. Irregular splashing of the material improves the printing accuracy of the alignment film boundary.
  • the invention provides a method for manufacturing an alignment film printing plate, wherein the prepared negative film of the printing plate comprises a plurality of first circular protrusions distributed on the peripheral edges thereof, and is divided into the plurality of first parts in the middle of the negative film. a plurality of second circular protrusions surrounded by the circular protrusions, and the diameter of the first circular protrusions is smaller than the diameter of the second circular protrusions, and the printing of the alignment film boundary can be improved when applied to the printing alignment film Precision.
  • FIG. 1 is a schematic cross-sectional structural view of a conventional alignment film printing plate
  • FIG. 2 is a schematic plan view of a conventional alignment film printing plate
  • Figure 3 is a schematic cross-sectional structural view of an alignment film printing plate of the present invention.
  • Figure 4 is a top plan view of an alignment film printing plate of the present invention.
  • Figure 5 is a flow chart showing a method of fabricating an alignment film printing plate of the present invention.
  • the present invention first provides an alignment film printing plate comprising a substrate protective layer 1 and a negative film 2 laminated on the substrate protective layer 1.
  • the backsheet 2 includes a plurality of first circular protrusions 21 distributed at its peripheral edges, and a plurality of second circular protrusions distributed in the middle of the backsheet 2 surrounded by the plurality of first circular protrusions 21 22, and the diameter of the first circular protrusion 21 is smaller than the diameter of the second circular protrusion 22.
  • the alignment film printing plate of the present invention is provided with a plurality of smaller diameters on the peripheral edge of the film 2 than the conventional alignment film printing plate in which a plurality of circular protrusions having the same diameter and large size are uniformly disposed in the film.
  • a first circular protrusion 21 between the first circular protrusions 21 of the backsheet 2 and between the second circular protrusions 22 when the alignment film is printed by the alignment film printing plate of the present invention
  • a liquid alignment material is contained between the first circular protrusion 21 and the second circular protrusion 22; the substrate to be printed contacts the film 2, and under the action of pressure, each of the first circular protrusions 21 Liquid distribution between the second circular protrusions 22 and between the first circular protrusions 21 and the second circular protrusions 22 Printing of the alignment film is completed by extruding the material onto the substrate to be printed.
  • liquid alignment material between the first circular protrusions 21 of the peripheral edge of the film 2 corresponds to the boundary of the printing alignment film
  • second circular protrusions 22 is accommodated between the second circular protrusions 22, and the first circle
  • the liquid alignment material between the protrusion 21 and the second circular protrusion 22 corresponds to a region other than the boundary of the printed alignment film, and the first circular protrusion is small due to the small diameter of the first circular protrusion 21.
  • There are fewer liquid alignment materials between the 21s which can reduce the irregular splashing of the liquid alignment material at the boundary of the alignment film and improve the printing precision of the alignment film boundary.
  • the diameter of the first circular protrusion 21 is the second circular convex. It is 1/3 or 1/4 of the diameter of 22.
  • the material of the substrate protective layer 1 is polyethylene terephthalate (PET).
  • the material of the backsheet 2 is an organic photoresist.
  • the present invention further provides a method for fabricating an alignment film printing plate, comprising the following steps:
  • Step S1 provides a substrate protective layer 1.
  • the material of the substrate protective layer 1 is PET.
  • Step S2 coating an organic photoresist material on the substrate protective layer 1, and exposing and developing the coated organic photoresist material using a photomask (not shown), and then organically baking or otherwise curing.
  • the photoresist is subjected to a curing treatment to form a negative film 2 laminated on the underlevel protection layer 1.
  • the backsheet 2 made through the reticle includes a plurality of first circular protrusions 21 distributed at the peripheral edges thereof, and distributed in the middle of the film sheet surrounded by the plurality of first circular protrusions 21 A plurality of second circular protrusions 22, and the diameter of the first circular protrusions 21 is smaller than the diameter of the second circular protrusions 22.
  • the diameter of the first circular protrusion 21 is 1/3 or 1/4 of the diameter of the second circular protrusion 22.
  • liquid alignment material between the first circular protrusions 21 of the peripheral edge of the film 2 corresponds to the boundary of the printing alignment film
  • second circular protrusions 22 is accommodated between the second circular protrusions 22, and the first circle
  • the liquid alignment material between the protrusion 21 and the second circular protrusion 22 corresponds to a region other than the boundary of the printed alignment film due to the first circular protrusion
  • the diameter of 21 is small, and the liquid alignment materials are contained between the first circular protrusions 21, so that the irregular splatter of the liquid alignment material at the boundary of the alignment film can be reduced, and the printing precision of the alignment film boundary can be improved.
  • the alignment film printing plate of the present invention has a plurality of first circular protrusions disposed on the peripheral edge of the film, and a plurality of first plurality of first circular protrusions are disposed in the middle of the film. a second circular protrusion, and the diameter of the first circular protrusion is smaller than the diameter of the second circular protrusion, so that the first circle of the peripheral edge of the film is used for the alignment film printing by the alignment film printing plate There are fewer liquid alignment materials between the protrusions, which can reduce the irregular sputtering of the liquid alignment material at the boundary of the alignment film and improve the printing precision of the alignment film boundary.
  • the obtained negative film of the printing plate comprises a plurality of first circular protrusions distributed around the peripheral edge thereof, and is divided into a plurality of first circular convex portions in the middle of the negative film.
  • the plurality of second circular protrusions are surrounded, and the diameter of the first circular protrusion is smaller than the diameter of the second circular protrusion, and the printing precision of the alignment film boundary can be improved when applied to the printing alignment film.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

一种配向膜印刷版及其制作方法。所述配向膜印刷版包括衬底保护层(1)、及底片(2)；所述底片(2)包括分布在其四周边缘的多个第一圆形凸起(21)、及分布在所述底片(2)中部被所述多个第一圆形凸起(21)包围的多个第二圆形凸起(22)，且所述第一圆形凸起(21)的直径小于第二圆形凸起(22)的直径；利用该配向膜印刷版进行配向膜印刷时，由于分布在底片(2)的四周边缘的多个第一圆形凸起(21)的直径较小，各第一圆形凸起(21)之间可盛装的液态配向材料较少，从而能够减少配向膜边界的液态配向材料的不规则喷溅，提高配向膜边界的印刷精度。

Description

配向膜印刷版及其制作方法 技术领域
本发明涉及显示器件制程领域，尤其涉及一种配向膜印刷版及其制作方法。
背景技术
液晶显示装置(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。如：液晶电视、移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括壳体、设于壳体内的液晶面板及设于壳体内的背光模组(Backlight Module)。
液晶面板的结构是由一彩膜基板(Color Filter，CF)、一薄膜晶体管阵列基板(Thin Film Transistor Array Substrate，TFT Array Substrate)以及一配置于两基板间的液晶层(Liquid Crystal Layer)所构成，其工作原理是通过在两片玻璃基板上施加驱动电压来控制液晶层的液晶分子的旋转，将背光模组的光线折射出来产生画面。
为了使液晶分子排列较规则，在阵列基板与彩膜基板靠近液晶层的一侧分别涂布有聚酰亚胺(Polyimide，PI)配向膜。PI配向膜中的支链基团与液晶分子间的作用力比较强，对液晶分子有锚定作用，能够使液晶分子在相对于PI配向膜表面倾斜的某一极角上取向排列，这一极角就是液晶层的预倾角。预倾角可控制液晶分子的取向，防止液晶层中反倾畴的出现，在一定程度上还可影响液晶层的透光率一电压曲线，适当的预倾角可使阈值电压降低，液晶响应速度加快。
目前，在阵列基板或彩膜基板上涂布配向膜主要有两种方式：喷涂(Inkjet)式、及印刷(Print)式，其中，印刷式所用到的主要工具为印刷版。请同时参阅图1、与图2，现有的配向膜印刷版包括衬底保护层100、及层叠在所述衬底保护层100上的底片200，所述底片200内均匀分布有多个直径相同且尺寸较大的圆形凸起201，液态PI容纳在各圆形凸起201之间，印刷时，各圆形凸起201之间的液态PI被挤压到基板上。由于底片200各处的圆形凸起201均较大，位于底片200边缘的多个圆形凸起201之间容纳的液态PI材料较多，导致在印刷时PI配向膜的边界500的精度较难控制，PI配向膜的边界500随圆形突起201起伏，不利于印刷精度的提高。
发明内容
本发明的目的在于提供一种配向膜印刷版，应用于印刷配向膜时能够提高配向膜边界的印刷精度。
本发明的另一目的在于提供一种配向膜印刷版的制作方法，制得的配向膜印刷版在应用于印刷配向膜时能够提高配向膜边界的印刷精度。
为实现上述目的，本发明首先提供一种配向膜印刷版，包括衬底保护层、及层叠在所述衬底保护层上的底片；所述底片包括分布在其四周边缘的多个第一圆形凸起、及分布在所述底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起；所述第一圆形凸起的直径小于第二圆形凸起的直径。
所述衬底保护层的材料为聚对苯二甲酸乙二醇酯。
所述底片的材料为有机光阻。
所述第一圆形凸起的直径为第二圆形凸起的直径的1/3或1/4。
本发明还提供一种配向膜印刷版的制作方法，包括如下步骤：
步骤S1、提供衬底保护层；
步骤S2、在所述衬底保护层上涂布有机光阻材料，使用光罩对涂布的有机光阻材料进行曝光、显影，之后对有机光阻材料进行固化处理，形成层叠在所述衬底保护层上的底片；
所述底片包括分布在其四周边缘的多个第一圆形凸起、及分布在所述底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起；所述第一圆形凸起的直径小于第二圆形凸起的直径。
所述步骤S2中通过烘烤对有机光阻材料进行固化处理。
所述衬底保护层的材料为聚对苯二甲酸乙二醇酯。
所述第一圆形凸起的直径为第二圆形凸起的直径的1/3或1/4。
本发明还提供一种配向膜印刷版，包括衬底保护层、及层叠在所述衬底保护层上的底片；所述底片包括分布在其四周边缘的多个第一圆形凸起、及分布在所述底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起；所述第一圆形凸起的直径小于第二圆形凸起的直径；
其中，所述衬底保护层的材料为聚对苯二甲酸乙二醇酯；
其中，所述底片的材料为有机光阻。
本发明的有益效果：本发明提供的一种配向膜印刷版，通过在底片的四周边缘设置多个第一圆形凸起，在底片的中部设置被所述多个第一圆形凸起包围的多个第二圆形凸起，且所述第一圆形凸起的直径小于第二圆形 凸起的直径，使得利用该配向膜印刷版进行配向膜印刷时，位于底片的四周边缘的各第一圆形凸起之间盛装的液态配向材料较少，从而能够减少配向膜边界的液态配向材料的不规则喷溅，提高配向膜边界的印刷精度。本发明提供的一种配向膜印刷版的制作方法，制得的印刷版的底片包括分布在其四周边缘的多个第一圆形凸起、及分在该底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起，且所述第一圆形凸起的直径小于第二圆形凸起的直径，在应用于印刷配向膜时能够提高配向膜边界的印刷精度。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为现有的配向膜印刷版的剖面结构示意图；
图2为现有的配向膜印刷版的俯视示意图；
图3为本发明的配向膜印刷版的剖面结构示意图；
图4为本发明的配向膜印刷版的俯视示意图；
图5为本发明的配向膜印刷版的制作方法的流程图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请同时参阅图3与图4，本发明首先提供一种配向膜印刷版，包括衬底保护层1、及层叠在所述衬底保护层1上的底片2。所述底片2包括分布在其四周边缘的多个第一圆形凸起21、及分布在所述底片2中部被所述多个第一圆形凸起21包围的多个第二圆形凸起22，且所述第一圆形凸起21的直径小于第二圆形凸起22的直径。
与现有的配向膜印刷版在其底片内均匀设置多个直径相同且尺寸较大的圆形凸起相比，本发明的配向膜印刷版在底片2的四周边缘设置多个直径较小的第一圆形凸起21，当利用本发明的配向膜印刷版进行配向膜的印刷时，所述底片2的各第一圆形凸起21之间、各第二圆形凸起22之间、及第一圆形凸起21与第二圆形凸起22之间均盛装有液态配向材料；待印刷的基板接触所述底片2，在压力作用下，各第一圆形凸起21之间、各第二圆形凸起22之间、及第一圆形凸起21与第二圆形凸起22之间的液态配 向材料被挤压到待印刷的基板上来完成配向膜的印刷。其中，盛装于底片2的四周边缘的各第一圆形凸起21之间的液态配向材料对应于印刷配向膜的边界，盛装于各第二圆形凸起22之间、及第一圆形凸起21与第二圆形凸起22之间的液态配向材料对应于印刷配向膜除边界以外的其它区域，由于所述第一圆形凸起21的直径小，各第一圆形凸起21之间盛装的液态配向材料较少，从而能够减少配向膜边界的液态配向材料的不规则喷溅，提高配向膜边界的印刷精度。
具体地，所述第一圆形凸起21的直径越小越有利于配向膜边界的印刷精度控制，但考虑到成本可行性，优选第一圆形凸起21的直径为第二圆形凸起22的直径的1/3或1/4。
具体地，所述衬底保护层1的材料为聚对苯二甲酸乙二醇酯(polyethylene Terephthalate，PET)。
具体地，所述底片2的材料为有机光阻。
请参阅图5，结合图3与图4，本发明还提供一种配向膜印刷版的制作方法，包括如下步骤：
步骤S1、提供衬底保护层1。
具体地，所述衬底保护层1的材料为PET。
步骤S2、在所述衬底保护层1上涂布有机光阻材料，使用光罩(未图示)对涂布的有机光阻材料进行曝光、显影，之后通过烘烤或其它固化方式对有机光阻材料进行固化处理，形成层叠在所述衬底保护层1上的底片2。
具体地，透过该光罩制得的底片2包括分布在其四周边缘的多个第一圆形凸起21、及分布在所述底片中部被所述多个第一圆形凸起21包围的多个第二圆形凸起22，且所述第一圆形凸起21的直径小于第二圆形凸起22的直径。优选的，所述第一圆形凸起21的直径为第二圆形凸起22的直径的1/3或1/4。
由上述方法制得的配向膜印刷版应用于配向膜的印刷时，所述底片2的各第一圆形凸起21之间、各第二圆形凸起22之间、及第一圆形凸起21与第二圆形凸起22之间均盛装有液态配向材料；待印刷的基板接触所述底片2，在压力作用下，各第一圆形凸起21之间、各第二圆形凸起22之间、及第一圆形凸起21与第二圆形凸起22之间的液态配向材料被挤压到待印刷的基板上来完成配向膜的印刷。其中，盛装于底片2的四周边缘的各第一圆形凸起21之间的液态配向材料对应于印刷配向膜的边界，盛装于各第二圆形凸起22之间、及第一圆形凸起21与第二圆形凸起22之间的液态配向材料对应于印刷配向膜除边界以外的其它区域，由于所述第一圆形凸起 21的直径小，各第一圆形凸起21之间盛装的液态配向材料较少，从而能够减少配向膜边界的液态配向材料的不规则喷溅，提高配向膜边界的印刷精度。
综上所述，本发明的配向膜印刷版，通过在底片的四周边缘设置多个第一圆形凸起，在底片的中部设置被所述多个第一圆形凸起包围的多个第二圆形凸起，且所述第一圆形凸起的直径小于第二圆形凸起的直径，使得利用该配向膜印刷版进行配向膜印刷时，位于底片的四周边缘的各第一圆形凸起间盛装的液态配向材料较少，从而能够减少配向膜边界的液态配向材料的不规则喷溅，提高配向膜边界的印刷精度。本发明的配向膜印刷版的制作方法，制得的印刷版的底片包括分布在其四周边缘的多个第一圆形凸起、及分在该底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起，且所述第一圆形凸起的直径小于第二圆形凸起的直径，在应用于印刷配向膜时能够提高配向膜边界的印刷精度。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (10)

  1. 一种配向膜印刷版，包括衬底保护层、及层叠在所述衬底保护层上的底片；所述底片包括分布在其四周边缘的多个第一圆形凸起、及分布在所述底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起；所述第一圆形凸起的直径小于第二圆形凸起的直径。
  2. 如权利要求1所述的配向膜印刷版，其中，所述衬底保护层的材料为聚对苯二甲酸乙二醇酯。
  3. 如权利要求1所述的配向膜印刷版，其中，所述底片的材料为有机光阻。
  4. 如权利要求1所述的配向膜印刷版，其中，所述第一圆形凸起的直径为第二圆形凸起的直径的1/3或1/4。
  5. 一种配向膜印刷版的制作方法，包括如下步骤：
    步骤S1、提供衬底保护层；
    步骤S2、在所述衬底保护层上涂布有机光阻材料，使用光罩对涂布的有机光阻材料进行曝光、显影，之后对有机光阻材料进行固化处理，形成层叠在所述衬底保护层上的底片；
    所述底片包括分布在其四周边缘的多个第一圆形凸起、及分布在所述底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起；所述第一圆形凸起的直径小于第二圆形凸起的直径。
  6. 如权利要求5所述的配向膜印刷版的制作方法，其中，所述步骤S2中通过烘烤对有机光阻材料进行固化处理。
  7. 如权利要求5所述的配向膜印刷版的制作方法，其中，所述衬底保护层的材料为聚对苯二甲酸乙二醇酯。
  8. 如权利要求5所述的配向膜印刷版的制作方法，其中，所述第一圆形凸起的直径为第二圆形凸起的直径的1/3或1/4。
  9. 一种配向膜印刷版，包括衬底保护层、及层叠在所述衬底保护层上的底片；所述底片包括分布在其四周边缘的多个第一圆形凸起、及分布在所述底片中部被所述多个第一圆形凸起包围的多个第二圆形凸起；所述第一圆形凸起的直径小于第二圆形凸起的直径；
    其中，所述衬底保护层的材料为聚对苯二甲酸乙二醇酯；
    其中，所述底片的材料为有机光阻。
  10. 如权利要求9所述的配向膜印刷版，其中，所述第一圆形凸起的 直径为第二圆形凸起的直径的1/3或1/4。
PCT/CN2017/073959 2017-01-23 2017-02-17 配向膜印刷版及其制作方法 WO2018133150A1 (zh)

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