WO2017193450A1 - Psva液晶面板的制作方法 - Google Patents

Psva液晶面板的制作方法 Download PDF

Info

Publication number
WO2017193450A1
WO2017193450A1 PCT/CN2016/086131 CN2016086131W WO2017193450A1 WO 2017193450 A1 WO2017193450 A1 WO 2017193450A1 CN 2016086131 W CN2016086131 W CN 2016086131W WO 2017193450 A1 WO2017193450 A1 WO 2017193450A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
alignment film
upper substrate
lower substrate
substrate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2016/086131
Other languages
English (en)
French (fr)
Inventor
赵仁堂
谢忠憬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US15/115,689 priority Critical patent/US20180088364A1/en
Publication of WO2017193450A1 publication Critical patent/WO2017193450A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • G02F1/1303—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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • 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
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133723—Polyimide, polyamide-imide
    • 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
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • 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
    • G02F1/133788—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 by light irradiation, e.g. linearly polarised light photo-polymerisation
    • 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
    • G02F1/1341—Filling or closing of cells
    • 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
    • G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a method for fabricating a PSVA liquid crystal panel.
  • TFT-LCD Thin Film Transistor-Liquid Crystal Display
  • TN Twisted Nematic
  • STN Super Twisted Nematic
  • IPS In -Plane Switching
  • VA Vertical Alignment
  • the VA type liquid crystal display has a very high contrast ratio with respect to other types of liquid crystal displays, and has a very wide application in a large-sized display such as a television.
  • the Polymer Stabilized-Vertical Alignment (PSVA) technology can make the liquid crystal display panel have the advantages of faster response time and high transmittance, and is characterized in that a polymer protrusion is formed on the surface of the alignment film, thereby making the liquid crystal
  • the molecule has a pretilt angle.
  • the manufacturing process of the traditional PSVA panel generally includes the following steps:
  • Step 1 providing an upper substrate 100 and a lower substrate 200, and placing a PI (polyimide) alignment film 300 on the upper substrate 100 and the lower substrate 200;
  • Step 2 dropping a liquid crystal composition on the side of the upper substrate 100 or the lower substrate 200, the liquid crystal composition comprising a liquid crystal material 410, and a reactive monomer (RM) 420 mixed in the liquid crystal material 410, and then The substrate 100 and the lower substrate 200 are paired to form a liquid crystal layer 400 between the upper substrate 100 and the lower substrate 200 to obtain a liquid crystal cell;
  • the liquid crystal composition comprising a liquid crystal material 410, and a reactive monomer (RM) 420 mixed in the liquid crystal material 410
  • Step 3 as shown in FIG. 1, the first ultraviolet light (UV) irradiation is performed on the liquid crystal cell, and a certain voltage is applied to the upper substrate 100 and the lower substrate 200, and the reaction in the liquid crystal composition is performed by irradiating UV light.
  • the type monomer 420 reacts to form polymer protrusions on the upper substrate 100 and the lower substrate 200, thereby forming the liquid crystal material 410 to have a pretilt angle. This process is called ultraviolet light alignment;
  • Step 4 as shown in FIG. 2, the second ultraviolet (UV) irradiation is performed on the liquid crystal cell, because the reactive monomer 420 is unable to react completely in the first ultraviolet light irradiation, and some remains in the liquid crystal.
  • the reactive monomer 420 is completely reacted by a relatively weak UV light by a second ultraviolet light irradiation process.
  • the ultraviolet light alignment is completed. There is no residual reactive monomer 420 in the liquid crystal layer 400.
  • the second ultraviolet light alignment process takes a long time, generally about two hours, so the energy consumption is high.
  • the alignment of the liquid crystal material 410 is achieved by the reaction of the reactive monomer 420 which is free in the liquid crystal material 410.
  • the concentration distribution of the free reactive monomer 420 and the intensity of the ultraviolet light both affect. The alignment is good or bad.
  • the liquid crystal panel may have a dripping Mura problem, that is, the panel has a regularly distributed black dot defect, thereby reducing the quality of the panel; for example, when the ultraviolet When the light intensity is large and the concentration of the reactive monomer 420 is high, the reaction type monomer may undergo an explosion polymerization reaction, and the liquid crystal panel may generate a broken bright spot when displayed, thereby seriously affecting the panel quality.
  • An object of the present invention is to provide a method for fabricating a PSVA liquid crystal panel, which eliminates the need for a second ultraviolet light irradiation process to eliminate reactive monomers mixed in the liquid crystal, and avoids problems such as dripping of the liquid crystal panel, such as dropping of Mura, and breaking of bright spots. Thereby reducing production costs and improving the quality of the liquid crystal panel.
  • the present invention provides a method for fabricating a PSVA liquid crystal panel, comprising the following steps:
  • Step 1 Providing an upper substrate and a lower substrate, and coating an alignment film material on one side of the upper substrate and the lower substrate to form an alignment film;
  • the alignment film material comprises a polyimide-based polymer, and the molecules of the polyimide-based polymer include a polymerizable reactive group of a polyimide main chain and a side chain;
  • Step 2 injecting a liquid crystal composition including liquid crystal molecules on a side where the upper substrate or the lower substrate is provided with the alignment film, and then facing the upper substrate and the lower substrate with the alignment film facing side, the upper substrate and the lower substrate Forming a cell, forming a liquid crystal layer between the upper substrate and the lower substrate to obtain a liquid crystal cell;
  • Step 3 applying a certain voltage to the upper substrate and the lower substrate, and irradiating the liquid crystal cell with ultraviolet light, and reacting groups on the side chain of the polyimide-based polymer in the alignment film on the opposite side of the upper substrate and the lower substrate.
  • the group undergoes polymerization under ultraviolet light irradiation to form a liquid crystal molecule in the liquid crystal layer to form a pretilt angle.
  • the wavelength of the ultraviolet light irradiated to the liquid crystal cell in the step 3 is between 300 nm and 400 nm.
  • the irradiation intensity of the ultraviolet light irradiated to the liquid crystal cell by the ultraviolet light in the step 3 is between 0.08 mW/cm 2 and 110 mW/cm 2 .
  • Step 3 The liquid crystal cell wavelength ultraviolet light irradiation is 313 nm, the irradiation intensity of 0.08mW / cm 2 to 10mW / between 2 cm.
  • the time during which the liquid crystal cell is irradiated with ultraviolet light in the step 3 is 50 seconds to 600 seconds.
  • a liquid crystal composition is injected on one side of the upper substrate or the lower substrate by liquid crystal dropping.
  • the pretilt angle formed by the liquid crystal molecules in the step 3 is 88° to 89°.
  • the upper substrate is a color film substrate
  • the lower substrate is a TFT array substrate.
  • the step 1 further includes coating a layer of the alignment film material on one side of the upper substrate and the lower substrate, performing a prebaking process and a high temperature baking process to form an alignment film.
  • the invention also provides a method for manufacturing a PSVA liquid crystal panel, comprising the following steps:
  • Step 1 Providing an upper substrate and a lower substrate, and coating an alignment film material on one side of the upper substrate and the lower substrate to form an alignment film;
  • the alignment film material comprises a polyimide-based polymer, and the molecules of the polyimide-based polymer include a polymerizable reactive group of a polyimide main chain and a side chain;
  • Step 2 injecting a liquid crystal composition including liquid crystal molecules on a side where the upper substrate or the lower substrate is provided with the alignment film, and then facing the upper substrate and the lower substrate with the alignment film facing side, the upper substrate and the lower substrate Forming a cell, forming a liquid crystal layer between the upper substrate and the lower substrate to obtain a liquid crystal cell;
  • Step 3 applying a certain voltage to the upper substrate and the lower substrate, and irradiating the liquid crystal cell with ultraviolet light, and reacting groups on the side chain of the polyimide-based polymer in the alignment film on the opposite side of the upper substrate and the lower substrate.
  • the group undergoes polymerization under ultraviolet light irradiation to form a liquid crystal molecule in the liquid crystal layer to form a pretilt angle;
  • a liquid crystal composition is injected on one side of the upper substrate or the lower substrate by using liquid crystal dropping and injecting;
  • the pretilt angle formed by the liquid crystal molecules in the step 3 is 88° to 89°;
  • the upper substrate is a color film substrate
  • the lower substrate is a TFT array substrate.
  • a method for fabricating a PSVA liquid crystal panel provided by the present invention the alignment film material forming the alignment film comprises a polyimide-based polymer, and the molecules of the polyimide-based polymer include polyimide
  • the polymerizable reactive group of the main chain and the side chain can realize the alignment of the liquid crystal molecules by polymerizing a reactive group on the side chain of the polyimide-based polymer in the alignment film by one ultraviolet light irradiation.
  • a reactive monomer which generates a pretilt angle by liquid crystal molecules by polymerization is directly grafted as a side chain group to a host material of the alignment film to form a polyimide-based polymer.
  • the reactive group is not mixed in the liquid crystal material, and there is no free reactive monomer in the liquid crystal layer, so there is no need to perform a second ultraviolet light irradiation process to eliminate the reactive monomer mixed in the liquid crystal layer while avoiding
  • the liquid crystal panel has problems such as dripping Mura, broken bright spots, etc., thereby reducing production cost and improving the quality of the liquid crystal panel.
  • FIG. 1 is a schematic view showing ultraviolet light alignment by a first ultraviolet light irradiation in a process of fabricating a conventional PSVA liquid crystal panel
  • FIG. 2 is a schematic view showing a process of removing a reactive monomer remaining in a liquid crystal material by a second ultraviolet light irradiation in a process of fabricating a conventional PSVA liquid crystal panel;
  • FIG. 3 is a schematic view showing the residual of non-reactive monomer in the liquid crystal material after two ultraviolet light irradiation in the fabrication process of the conventional PSVA liquid crystal panel.
  • FIG. 4 is a schematic flow chart of a method for fabricating a PSVA liquid crystal panel of the present invention.
  • step 1 is a schematic diagram of step 1 of a method for fabricating a PSVA liquid crystal panel of the present invention
  • step 2 is a schematic diagram of step 2 of a method for fabricating a PSVA liquid crystal panel of the present invention
  • step 3 is a schematic diagram of step 3 of a method for fabricating a PSVA liquid crystal panel of the present invention.
  • FIG. 8 is a schematic structural view of a PSVA liquid crystal panel obtained in the third step of the method for fabricating a PSVA liquid crystal panel of the present invention.
  • the present invention provides a method for fabricating a PSVA liquid crystal panel, including the following steps:
  • Step 1 as shown in FIG. 5, an upper substrate 10 and a lower substrate 20 are provided, and an alignment film material is coated on one side of the upper substrate 10 and the lower substrate 20 to form an alignment film 30; the alignment film
  • the material comprises a polyimide-based polymer comprising molecules of a polyimide backbone 31 and a side chain polymerizable reactive group 32.
  • the polyimide main chain 31 in the molecule of the polyimide-based polymer is
  • the polymerizable reactive group 32 of the side chain in the molecule of the polyimide-based polymer is a group containing a plurality of carbon-carbon double bonds, and its chemical structural formula is specifically -XFB-(m) n -GY;
  • X is benzyl, -COO-, -O-, or -CH2-;
  • B is diphenyl or 1,4-phenylene
  • n is from 1 to 10;
  • G is -(CH2) K -, and K is from 1 to 20;
  • the surface of the upper substrate 10 and the lower substrate 20 is first cleaned by a cleaning device to have good coating property and invasive property to the alignment film material, and then the upper substrate 10 and the upper substrate 10 are further
  • the lower substrate 20 is dried in a drying oven, and then uniformly coated with an alignment film material on one side of the upper substrate 10 and the lower substrate 20 by inkjet printing (Inkjet), and then pre-baked (Pre
  • the alignment film 30 is cured on the upper substrate 10 and the lower substrate 20 by a process such as Bake) or a high temperature baking (Post Bake).
  • the polyimide-based polymer is formed by grafting a reactive monomer onto a host material, and the reactive monomer is grafted to the host material to form a side chain in the polyimide-based polymer molecule.
  • the upper substrate 10 is a color filter substrate
  • the lower substrate 20 is a TFT array substrate.
  • Step 2 as shown in FIG. 6, a liquid crystal composition including liquid crystal molecules 41 is implanted on one side of the upper substrate 10 or the lower substrate 20 where the alignment film 30 is provided, and then the alignment film 30 on the upper substrate 10 and the lower substrate 20 is made.
  • the upper substrate 10 and the lower substrate 20 are paired to form a cell, and the liquid crystal layer 40 between the upper substrate 10 and the lower substrate 20 is formed to obtain a liquid crystal cell.
  • liquid crystal composition is injected on one side of the upper substrate 10 or the lower substrate 20 by using one drop filling (ODF), which can greatly save the liquid crystal material and the drip irrigation liquid crystal. time.
  • ODF drop filling
  • the reactive group 32 of the polyimide-based polymer in the alignment film 30 is formed of a reactive monomer and can continue to polymerize and align the liquid crystal molecules 41, the liquid crystal composition It is not doped with any reactive monomer.
  • Step 3 as shown in FIG. 7, applying a certain voltage to the upper substrate 10 and the lower substrate 20, the liquid crystal molecules 41 in the liquid crystal layer 40 are deflected at a certain angle under voltage driving, and simultaneously from the upper substrate 10 or the lower substrate.
  • 20 side of the liquid crystal cell is irradiated with ultraviolet light, the upper substrate 10 and the lower substrate 20
  • the reactive group 32 on the side chain of the polyimide-based polymer in the alignment film 30 on the opposite side is polymerized under ultraviolet light irradiation in the direction of the liquid crystal molecules 41 which are deflected, so that the liquid crystal in the liquid crystal layer 40 is caused.
  • the molecules 41 form a pretilt angle, thereby completing the ultraviolet light alignment process, that is, as shown in FIG. 8, the role of the polymer formed by the liquid crystal molecules 41 in the liquid crystal layer 40 in the reactive group 32 after the voltage is removed and the ultraviolet light is stopped. There is still a certain deflection angle.
  • the irradiation intensity of a wavelength between 300 nanometers to 400 nanometers 0.3mW / cm 2 to 110mW / ultraviolet light between the liquid crystal cell is irradiated to 2 cm
  • the irradiation time of 50 seconds to 600 Second which is sufficient to cause the liquid crystal molecules 41 to form a pretilt angle
  • the pretilt angle formed is specifically 88 to 89.
  • the ultraviolet light irradiation intensity 0.08mW / cm 2 to 10mW / cm 2 between.
  • the liquid crystal layer 40 does not contain a reactive monomer, and after performing a UV alignment process, the liquid crystal layer 40 does not contain a free reaction type.
  • the monomer therefore, does not require a second ultraviolet light irradiation process to remove the free reactive monomer from the liquid crystal layer 40, thereby greatly shortening the production time and increasing the production capacity.
  • the reactive monomer is fixed to the alignment film 30 in a grafting manner, there is no uneven distribution of the reactive monomer, so that it is not generated due to uneven distribution of the reactive monomer during the production process.
  • the problem of dripping Mura does not cause the problem of broken bright spots due to the explosion of reactive monomers, thereby improving the quality of the liquid crystal panel.
  • the present invention provides a method for fabricating a PSVA liquid crystal panel.
  • the alignment film material forming the alignment film comprises a polyimide-based polymer, and the molecules of the polyimide-based polymer include a polyimide master.
  • the polymerizable reactive group of the chain and the side chain can realize the alignment of the liquid crystal molecules by polymerizing the reactive group on the side chain of the polyimide-based polymer in the alignment film by one ultraviolet light irradiation.
  • a reactive monomer which causes a liquid crystal molecule to have a pretilt angle by polymerization is directly grafted as a side chain group on a host material of the alignment film to form a polyimide-based polymer.
  • the reactive group rather than being mixed in the liquid crystal material, has no free reactive monomer in the liquid crystal layer, so there is no need to perform a second ultraviolet light irradiation process to eliminate the reactive monomer mixed in the liquid crystal layer, and at the same time avoid
  • the liquid crystal panel drops the Mura, the broken bright spots and the like, thereby reducing the production cost and improving the quality of the liquid crystal panel.

Landscapes

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

Abstract

一种PSVA液晶面板的制作方法，形成配向膜（30）的材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链（31）及侧链的可聚合的反应型基团（32），通过一次紫外光照射使配向膜（30）内聚酰亚胺类聚合物侧链上的反应型基团（32）发生聚合反应即可实现对液晶分子（41）的配向，相较于现有的PSVA液晶面板的制作方法，通过聚合使液晶分子（41）产生预倾角的反应型单体，作为侧链基团直接接枝于配向膜（30）的主体材料上形成聚酰亚胺类聚合物上的反应型基团（32），而非混合于液晶材料中，液晶层（40）中无游离的反应型单体，因此无需进行第二紫外光照射制程以消除混杂于液晶层（40）中的反应型单体，同时避免了液晶面板的滴落Mura、碎亮点等问题，从而降低了生产成本，提高了液晶面板品质。

Description

PSVA液晶面板的制作方法 技术领域
本发明涉及液晶显示领域，尤其涉及一种PSVA液晶面板的制作方法。
背景技术
薄膜晶体管液晶显示器(Thin Film Transistor-Liquid Crystal Display，TFT-LCD)由于色彩度高、体积小、功耗低等优势，在目前平板显示领域中占主流位置。就目前主流市场上的TFT-LCD显示面板而言，可分为三种类型，分别是扭曲向列(Twisted Nematic，TN)或超扭曲向列(Super Twisted Nematic，STN)型，平面转换(In-Plane Switching，IPS)型、及垂直配向(Vertical Alignment，VA)型。其中VA型液晶显示器相对其他种类的液晶显示器具有极高的对比度，在大尺寸显示，如电视等方面具有非常广的应用。
其中，聚合物稳定垂直配向(Polymer Stabilized-Vertical Alignment，PSVA)技术能够使液晶显示面板具有较快的响应时间、穿透率高等优点，其特点是在配向膜表面形成聚合物突起，从而使液晶分子具有预倾角。
传统的PSVA面板的制作过程大致包括如下步骤：
步骤1、提供上基板100和下基板200，在上基板100和下基板200上设置PI(聚酰亚胺)配向膜300；
步骤2、在上基板100或下基板200侧滴入液晶组合物，该液晶组合物包含液晶材料410、和混合于液晶材料410中的反应型单体(Reactive monomer，RM)420，然后将上基板100和下基板200对组，形成上基板100和下基板200之间的液晶层400，得到液晶盒；
步骤3、如图1所示，对液晶盒进行第一次紫外光(UV)照射，并对上基板100和下基板200施加一定的电压，通过照射UV光的方式使液晶组合物中的反应型单体420发生反应，在上基板100和下基板200上形成聚合物突起，从而使液晶材料410形成预倾角，这一制程称为紫外光配向；
步骤4、如图2所示，对液晶盒进行第二次紫外光(UV)照射，因为在第一次紫外光照射中反应型单体420是没办法反应完全的，还有一些残留在液晶材料410里，为了除去这部分反应型单体420，通过第二次紫外光照射制程，用比较弱的UV光使反应型单体420反应完全。
从而如图3所示，经过两次UV光照射制程后，完成了紫外光配向并 使液晶层400内无残留的反应型单体420。然而在实际生产中，第二紫外光配向制程的时间很长，一般在两个小时左右，因此耗能较高。另外，液晶材料410的配向是通过在液晶材料410里游离的反应型单体420发生反应实现的，在紫外光配向时，游离的反应型单体420的浓度分布和紫外光的强弱都会影响配向的好坏，例如，当游离的反应型单体420分布不均匀时，液晶面板会产生滴落Mura问题，即面板存在规则分布的黑点缺陷，从而降低面板的品质；再如，当紫外光强度较大、反应型单体420浓度较高时，反应型单体会发生爆聚反应，则液晶面板在显示时会产生碎亮点，从而严重影响面板品质。
发明内容
本发明的目的在于提供一种PSVA液晶面板的制作方法，无需进行第二紫外光照射制程以消除混杂于液晶中的反应型单体，同时避免了液晶面板的滴落Mura、碎亮点等问题，从而降低生产成本，提高液晶面板品质。
为实现上述目的，本发明提供一种PSVA液晶面板的制作方法，包括如下步骤：
步骤1、提供上基板和下基板，在所述上基板和下基板的一侧上分别涂布一层配向膜材料，形成配向膜；
所述配向膜材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链及侧链的可聚合的反应型基团；
步骤2、在上基板或下基板设有配向膜的一侧上注入包括液晶分子的液晶组合物，然后使上基板和下基板设有配向膜的一侧相面对，将上基板和下基板对组成盒，形成上基板和下基板之间的液晶层，得到液晶盒；
步骤3、对上基板和下基板施加一定的电压，并对液晶盒进行紫外光照射，上基板和下基板相对一侧上的配向膜内聚酰亚胺类聚合物侧链上的反应型基团在紫外光照射下发生聚合反应，使液晶层内的液晶分子形成预倾角。
所述步骤3中对液晶盒照射的紫外光的波长在300纳米到400纳米之间。
所述步骤3中对液晶盒进行紫外光照射的紫外光的照射强度为0.08mW/cm2到110mW/cm2之间
所述步骤3中对液晶盒照射的紫外光的波长为313纳米，照射强度为0.08mW/cm2到10mW/cm2之间。
所述步骤3中对液晶盒进行紫外光照射的时间为50秒至600秒。
所述步骤2中采用液晶滴下注入的方式在上基板或下基板的一侧上注入液晶组合物。
所述步骤3中使液晶分子形成的预倾角为88°至89°。
所述上基板为彩膜基板，所述下基板为TFT阵列基板。
所述步骤1中还包括在所述上基板和下基板的一侧上分别涂布一层配向膜材料后，进行预烘烤制程和高温烘烤制程，形成配向膜。
本发明还提供一种PSVA液晶面板的制作方法，包括如下步骤：
步骤1、提供上基板和下基板，在所述上基板和下基板的一侧上分别涂布一层配向膜材料，形成配向膜；
所述配向膜材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链及侧链的可聚合的反应型基团；
步骤2、在上基板或下基板设有配向膜的一侧上注入包括液晶分子的液晶组合物，然后使上基板和下基板设有配向膜的一侧相面对，将上基板和下基板对组成盒，形成上基板和下基板之间的液晶层，得到液晶盒；
步骤3、对上基板和下基板施加一定的电压，并对液晶盒进行紫外光照射，上基板和下基板相对一侧上的配向膜内聚酰亚胺类聚合物侧链上的反应型基团在紫外光照射下发生聚合反应，使液晶层内的液晶分子形成预倾角；
其中，所述步骤2中采用液晶滴下注入的方式在上基板或下基板的一侧上注入液晶组合物；
其中，所述步骤3中使液晶分子形成的预倾角为88°至89°；
其中，所述上基板为彩膜基板，所述下基板为TFT阵列基板。
本发明的有益效果：本发明提供的一种PSVA液晶面板的制作方法，形成配向膜的配向膜材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链及侧链的可聚合的反应型基团，通过一次紫外光照射使配向膜内聚酰亚胺类聚合物侧链上的反应型基团发生聚合反应即可实现对液晶分子的配向，相较于现有的PSVA液晶面板的制作方法，通过聚合使液晶分子产生预倾角的反应型单体，作为侧链基团直接接枝于配向膜的主体材料上形成聚酰亚胺类聚合物上的反应型基团，而非混合于液晶材料中，液晶层中无游离的反应型单体，因此无需进行第二紫外光照射制程以消除混杂于液晶层中的反应型单体，同时避免了液晶面板的滴落Mura、碎亮点等问题，从而降低了生产成本，提高了液晶面板品质。
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PSVA液晶面板的制作过程中通过第一次紫外光照射进行紫外光配向的示意图；
图2为现有PSVA液晶面板的制作过程中通过第二次紫外光照射以去除液晶材料内残留的反应性单体的示意图；
图3为现有PSVA液晶面板的制作过程中通过两次紫外光照射后液晶材料内无反应性单体残留的示意图。
图4为本发明的PSVA液晶面板的制作方法的示意流程图；
图5为本发明的PSVA液晶面板的制作方法的步骤1的示意图；
图6为本发明的PSVA液晶面板的制作方法的步骤2的示意图；
图7为本发明的PSVA液晶面板的制作方法的步骤3的示意图；
图8为本发明的PSVA液晶面板的制作方法的步骤3中得到的PSVA液晶面板的结构示意图。
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。
请参阅图4，本发明提供一种PSVA液晶面板的制作方法，包括如下步骤：
步骤1、如图5所示，提供上基板10和下基板20，在所述上基板10和下基板20的一侧上分别涂布一层配向膜材料，形成配向膜30；所述配向膜材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链31及侧链的可聚合的反应型基团32。
具体地，该聚酰亚胺类聚合物的分子中聚酰亚胺主链31为
Figure PCTCN2016086131-appb-000001
该聚酰亚胺类聚合物的分子中侧链的可聚合的反应型基团32为含有多个碳碳双键的基团，其化学结构式具体为-X-F-B-(m)n-G-Y；
其中，X为苯甲基、-COO-、-O-、或-CH2-；
F为-(C＝C)j-，j为1～20；
B为二苯基、或1,4-亚苯基；
m为-COO-、-O-、或-CH2-，n为1～10；
G为-(CH2)K-，K为1～20；
Y为
Figure PCTCN2016086131-appb-000002
Figure PCTCN2016086131-appb-000003
具体地，所述步骤1中，首先用洗净设备洗净上基板10和下基板20的表面，使其对配向膜材料有良好的涂布性和侵润性，然后再将上基板10和下基板20放入干燥炉中干燥，接着通过喷墨打印(Inkjet)的方法在上基板10和下基板20的一侧上分别均匀地涂布一层配向膜材料，再进行预烘烤(Pre Bake)、高温烘烤(Post Bake)等制程将配向膜30固化在上基板10和下基板20上。
具体地，所述聚酰亚胺类聚合物由反应型单体接枝于主体材料上形成，反应型单体接枝到主体材料后形成聚酰亚胺类聚合物分子中的侧链的可聚合的反应型基团32；该反应型单体包括光聚合反应型单体及热聚合反应型单体。具体地，所述上基板10为彩膜基板，所述下基板20为TFT阵列基板。
步骤2、如图6所示，在上基板10或下基板20设有配向膜30的一侧上注入包括液晶分子41的液晶组合物，然后使上基板10和下基板20上的配向膜30相面对，将上基板10和下基板20对组成盒，形成上基板10和下基板20之间的液晶层40，得到液晶盒。
具体地，所述步骤2中采用液晶滴下注入(One Drop Filling，ODF)的方式在上基板10或下基板20的一侧上注入液晶组合物，这种制程可大幅节省液晶材料和滴灌液晶的时间。
进一步地，由于配向膜30中聚酰亚胺类聚合物的反应型基团32由反应型单体所形成，并可继续聚合并对液晶分子41起到配向作用，因此，所述液晶组合物中不掺杂任何的反应型单体。
步骤3、如图7所示，对上基板10和下基板20施加一定的电压，液晶层40中的液晶分子41在电压驱动下会按照一定角度发生偏转，并同时从上基板10或下基板20侧对液晶盒进行紫外光照射，上基板10和下基板20 相对一侧上的配向膜30内聚酰亚胺类聚合物侧链上的反应型基团32按照发生偏转的液晶分子41的方向在紫外光照射下发生聚合反应，使液晶层40内的液晶分子41形成预倾角，从而完成紫外光配向制程，即如图8所示，撤去电压并停止紫外光照射后，液晶层40内的液晶分子41在反应型基团32所形成的聚合物的作用下仍具有一定的偏转角度。
具体地，所述步骤3中采用波长在300纳米到400纳米之间的照射强度为0.3mW/cm2到110mW/cm2之间的紫外光对液晶盒照射，照射的时间为50秒至600秒，从而足以使液晶分子41形成预倾角，所形成的预倾角具体为88°至89°。
具体地，所在步骤3中当所采用的紫外光波长为313纳米时，紫外光时照射强度为0.08mW/cm2到10mW/cm2之间。
需要说明的是，本发明的PSVA液晶面板的制作方法，只需要进行一次紫外光照射制程，以实现紫外光配向，由于配向膜30中聚酰亚胺类聚合物的反应型基团32由反应型单体所形成，并可继续聚合并对液晶分子41起到配向作用，液晶层40中不含有反应型单体，在进行一次紫外光配向制程后，液晶层40不会含有游离的反应型单体，因此不需要第二次紫外光照射制程来将游离的反应型单体从液晶层40中去除，从而大大缩短了生产的作业时间，提高了生产产能。进一步地，因为反应型单体按照接枝的方式固定于配向膜30上，不存在反应型单体分布不均的情况，所以在生产制造过程中不会因反应型单体分布不均而产生滴落Mura的问题，也不会因反应型单体爆聚而产生碎亮点的问题，从而提高了液晶面板的品质。
综上所述，本发明提供的一种PSVA液晶面板的制作方法，形成配向膜的配向膜材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链及侧链的可聚合的反应型基团，通过一次紫外光照射使配向膜内聚酰亚胺类聚合物侧链上的反应型基团发生聚合反应即可实现对液晶分子的配向，相较于现有的PSVA液晶面板的制作方法，通过聚合使液晶分子产生预倾角的反应型单体，作为侧链基团直接接枝于配向膜的主体材料上形成聚酰亚胺类聚合物上的反应型基团，而非混合于液晶材料中，液晶层中无游离的反应型单体，因此无需进行第二紫外光照射制程以消除混杂于液晶层中的反应型单体，同时避免了液晶面板的滴落Mura、碎亮点等问题，从而降低了生产成本，提高了液晶面板品质。
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 (15)

  1. 一种PSVA液晶面板的制作方法，包括如下步骤：
    步骤1、提供上基板和下基板，在所述上基板和下基板的一侧上分别涂布一层配向膜材料，形成配向膜；
    所述配向膜材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链及侧链的可聚合的反应型基团；
    步骤2、在上基板或下基板设有配向膜的一侧上注入包括液晶分子的液晶组合物，然后使上基板和下基板设有配向膜的一侧相面对，将上基板和下基板对组成盒，形成上基板和下基板之间的液晶层，得到液晶盒；
    步骤3、对上基板和下基板施加一定的电压，并对液晶盒进行紫外光照射，上基板和下基板相对一侧上的配向膜内聚酰亚胺类聚合物侧链上的反应型基团在紫外光照射下发生聚合反应，使液晶层内的液晶分子形成预倾角。
  2. 如权利要求1所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒照射的紫外光的波长在300纳米到400纳米之间。
  3. 如权利要求2所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒进行紫外光照射的紫外光的照射强度为0.08mW/cm2到110mW/cm2之间。
  4. 如权利要求3所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒进行紫外光照射的紫外光的波长为313纳米，照射强度为0.08mW/cm2到10mW/cm2之间。
  5. 如权利要求2所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒进行紫外光照射的时间为50秒至600秒。
  6. 如权利要求1所述的PSVA液晶面板的制作方法，其中，所述步骤2中采用液晶滴下注入的方式在上基板或下基板的一侧上注入液晶组合物。
  7. 如权利要求1所述的PSVA液晶面板的制作方法，其中，所述步骤3中使液晶分子形成的预倾角为88°至89°。
  8. 如权利要求1所述的PSVA液晶面板的制作方法，其中，所述上基板为彩膜基板，所述下基板为TFT阵列基板。
  9. 如权利要求1所述的PSVA液晶面板的制作方法，其中，所述步骤1中还包括在所述上基板和下基板的一侧上分别涂布一层配向膜材料后，进行预烘烤制程和高温烘烤制程，形成配向膜。
  10. 一种PSVA液晶面板的制作方法，包括如下步骤：
    步骤1、提供上基板和下基板，在所述上基板和下基板的一侧上分别涂布一层配向膜材料，形成配向膜；
    所述配向膜材料包含聚酰亚胺类聚合物，该聚酰亚胺类聚合物的分子包括聚酰亚胺主链及侧链的可聚合的反应型基团；
    步骤2、在上基板或下基板设有配向膜的一侧上注入包括液晶分子的液晶组合物，然后使上基板和下基板设有配向膜的一侧相面对，将上基板和下基板对组成盒，形成上基板和下基板之间的液晶层，得到液晶盒；
    步骤3、对上基板和下基板施加一定的电压，并对液晶盒进行紫外光照射，上基板和下基板相对一侧上的配向膜内聚酰亚胺类聚合物侧链上的反应型基团在紫外光照射下发生聚合反应，使液晶层内的液晶分子形成预倾角；
    其中，所述步骤2中采用液晶滴下注入的方式在上基板或下基板的一侧上注入液晶组合物；
    其中，所述步骤3中使液晶分子形成的预倾角为88°至89°；
    其中，所述上基板为彩膜基板，所述下基板为TFT阵列基板。
  11. 如权利要求10所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒照射的紫外光的波长在300纳米到400纳米之间。
  12. 如权利要求11所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒进行紫外光照射的紫外光的照射强度为0.08mW/cm2到110mW/cm2之间。
  13. 如权利要求12所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒进行紫外光照射的紫外光的波长为313纳米，照射强度为0.08mW/cm2到10mW/cm2之间。
  14. 如权利要求11所述的PSVA液晶面板的制作方法，其中，所述步骤3中对液晶盒进行紫外光照射的时间为50秒至600秒。
  15. 如权利要求10所述的PSVA液晶面板的制作方法，其中，所述步骤1中还包括在所述上基板和下基板的一侧上分别涂布一层配向膜材料后，进行预烘烤制程和高温烘烤制程，形成配向膜。
PCT/CN2016/086131 2016-05-13 2016-06-17 Psva液晶面板的制作方法 Ceased WO2017193450A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/115,689 US20180088364A1 (en) 2016-05-13 2016-06-17 Manufacture method of psva liquid crystal panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610323199.0A CN105785612B (zh) 2016-05-13 2016-05-13 Psva液晶面板的制作方法
CN201610323199.0 2016-05-13

Publications (1)

Publication Number Publication Date
WO2017193450A1 true WO2017193450A1 (zh) 2017-11-16

Family

ID=56379743

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/086131 Ceased WO2017193450A1 (zh) 2016-05-13 2016-06-17 Psva液晶面板的制作方法

Country Status (3)

Country Link
US (1) US20180088364A1 (zh)
CN (1) CN105785612B (zh)
WO (1) WO2017193450A1 (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019128383A (ja) * 2018-01-22 2019-08-01 シャープ株式会社 液晶表示装置、及び、液晶表示装置の製造方法
CN108319083A (zh) * 2018-02-11 2018-07-24 深圳市华星光电半导体显示技术有限公司 一种显示组件及制造方法
CN108803125A (zh) * 2018-06-27 2018-11-13 深圳市华星光电技术有限公司 液晶面板及其制作方法
US11053354B2 (en) * 2018-07-23 2021-07-06 Sharp Kabushiki Kaisha Liquid crystal display device
CN109270744A (zh) * 2018-11-14 2019-01-25 成都中电熊猫显示科技有限公司 液晶显示面板、液晶显示装置及光配向方法
CN109445199B (zh) * 2018-12-30 2021-11-23 厦门天马微电子有限公司 一种液晶装置及其制备方法
JP7156130B2 (ja) * 2019-03-27 2022-10-19 Dic株式会社 液晶表示素子およびその製造方法
CN109870852B (zh) * 2019-04-01 2021-06-22 苏州华星光电技术有限公司 改善光阻附着力的方法
CN111965874B (zh) * 2020-08-07 2023-12-29 Tcl华星光电技术有限公司 液晶显示面板的制作方法及液晶显示面板
CN112882291A (zh) * 2021-01-18 2021-06-01 深圳市华星光电半导体显示技术有限公司 液晶材料的光配向方法
CN113406825A (zh) * 2021-06-02 2021-09-17 Tcl华星光电技术有限公司 紫外配向装置及配向方法
CN113589593B (zh) * 2021-07-07 2023-05-30 Tcl华星光电技术有限公司 配向层的材料及其制备方法和显示面板
CN115718391B (zh) * 2022-11-24 2026-01-27 昆山龙腾光电股份有限公司 胆甾相液晶显示屏及其制作方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1158349A1 (en) * 2000-05-16 2001-11-28 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Process for producing a polymeric liquid crystal alignment layer, use of such an alignment layer, and liquid crystal display comprising such an alignment layer
JP2014215421A (ja) * 2013-04-25 2014-11-17 エルジー ディスプレイ カンパニー リミテッド ゼロ面アンカリング液晶配向法及び非接触液晶配向法、並びにこれらを用いた液晶表示装置
CN104423098A (zh) * 2013-09-02 2015-03-18 三星显示有限公司 液晶显示器及其制造方法
CN104460168A (zh) * 2014-11-21 2015-03-25 深圳市华星光电技术有限公司 显示面板及显示装置
CN104678653A (zh) * 2013-12-02 2015-06-03 三星显示有限公司 液晶显示装置以及用于制造液晶显示装置的方法
CN104777671A (zh) * 2015-03-31 2015-07-15 深超光电（深圳）有限公司 液晶显示面板及其制造方法
CN104937480A (zh) * 2012-07-24 2015-09-23 日产化学工业株式会社 液晶取向膜的制造方法、液晶取向膜、液晶显示元件、聚合物以及液晶取向剂

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005165B2 (en) * 1998-12-23 2006-02-28 Elsicon, Inc. Photosensitive polyimides for optical alignment of liquid crystals
US9052549B2 (en) * 2008-11-27 2015-06-09 Samsung Display Co., Ltd. Liquid crystal display and manufacturing method thereof
KR101613629B1 (ko) * 2009-01-19 2016-04-20 삼성디스플레이 주식회사 액정표시장치와 이의 제조방법 및 이에 포함되는 배향막 조성물
TWI591096B (zh) * 2010-02-12 2017-07-11 羅利克股份公司 具橫向取代之光配向材料
CN102402077B (zh) * 2011-04-13 2013-11-20 深圳市华星光电技术有限公司 液晶框胶成型装置及其应用的显示面板组装设备
KR101825215B1 (ko) * 2011-06-07 2018-02-05 삼성디스플레이 주식회사 액정 표시 장치 및 그 제조 방법
CN105182584A (zh) * 2015-08-06 2015-12-23 友达光电股份有限公司 显示面板及其制造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1158349A1 (en) * 2000-05-16 2001-11-28 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Process for producing a polymeric liquid crystal alignment layer, use of such an alignment layer, and liquid crystal display comprising such an alignment layer
CN104937480A (zh) * 2012-07-24 2015-09-23 日产化学工业株式会社 液晶取向膜的制造方法、液晶取向膜、液晶显示元件、聚合物以及液晶取向剂
JP2014215421A (ja) * 2013-04-25 2014-11-17 エルジー ディスプレイ カンパニー リミテッド ゼロ面アンカリング液晶配向法及び非接触液晶配向法、並びにこれらを用いた液晶表示装置
CN104423098A (zh) * 2013-09-02 2015-03-18 三星显示有限公司 液晶显示器及其制造方法
CN104678653A (zh) * 2013-12-02 2015-06-03 三星显示有限公司 液晶显示装置以及用于制造液晶显示装置的方法
CN104460168A (zh) * 2014-11-21 2015-03-25 深圳市华星光电技术有限公司 显示面板及显示装置
CN104777671A (zh) * 2015-03-31 2015-07-15 深超光电（深圳）有限公司 液晶显示面板及其制造方法

Also Published As

Publication number Publication date
CN105785612A (zh) 2016-07-20
US20180088364A1 (en) 2018-03-29
CN105785612B (zh) 2020-05-29

Similar Documents

Publication Publication Date Title
WO2017193450A1 (zh) Psva液晶面板的制作方法
US9011990B2 (en) Liquid crystal display and method of manufacturing the same
CN105954920B (zh) 柔性液晶显示面板的制作方法
JP4496159B2 (ja) 液晶表示装置及びその製造方法
JP5620006B2 (ja) 液晶表示装置の製造方法
CN101266366B (zh) 液晶配向方法
TWI431385B (zh) Liquid crystal display device
KR101978796B1 (ko) 액정 표시 소자 및 액정 표시 소자의 제조 방법
CN111240100B (zh) 一种可弯曲的液晶显示面板及其制备方法
CN110794619B (zh) 液晶显示面板及其制作方法
JP5113869B2 (ja) 液晶表示装置及びその製造方法
CN101158768A (zh) 制作液晶显示面板的方法
CN110092875A (zh) 一种基于液晶/高分子复合材料体系的pdlc膜的制备方法
CN102062968B (zh) 液晶显示面板的制造方法
CN116278288B (zh) 一种柔性液晶调光膜及其制备方法
KR100343224B1 (ko) 액정표시장치의 제조방법
JP3599814B2 (ja) 液晶表示素子用配向膜、液晶表示素子及び配向膜の製造方法
CN110187565B (zh) 显示器及其制造方法
CN110716352B (zh) 一种用于制备液晶光配向层的组合物及其应用方法
CN114527591B (zh) 液晶显示面板的制备方法及液晶显示面板
US20140183408A1 (en) Mixture for Liquid Crystal Medium and Liquid Crystal Display Using the Same
CN110764314B (zh) 一种高光效低偏色的液晶光配向层的制备方法
JPH06337418A (ja) 液晶電気光学装置
JP2765555B2 (ja) 液晶表示装置、その製造方法およびその駆動方法
CN118519297A (zh) 显示装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 15115689

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16901405

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16901405

Country of ref document: EP

Kind code of ref document: A1