WO2013143333A1 - 复合物、取向材料、取向膜以及制备方法和应用 - Google Patents

复合物、取向材料、取向膜以及制备方法和应用 Download PDF

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WO2013143333A1
WO2013143333A1 PCT/CN2012/087191 CN2012087191W WO2013143333A1 WO 2013143333 A1 WO2013143333 A1 WO 2013143333A1 CN 2012087191 W CN2012087191 W CN 2012087191W WO 2013143333 A1 WO2013143333 A1 WO 2013143333A1
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group
alignment
liquid crystal
alignment material
alignment film
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李会
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BOE Technology Group Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C255/54—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and etherified hydroxy groups bound to the carbon skeleton
    • 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
    • G02F1/133703—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by introducing organic surfactant additives into the liquid crystal material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
    • C09K2019/0448—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • C09K2019/548—Macromolecular compounds stabilizing the alignment; Polymer stabilized alignment
    • 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

Definitions

  • the present disclosure relates to a composite, an alignment material, and an alignment film formed of the alignment material, and to a preparation method and application of the alignment film.
  • the orientation of the liquid crystal molecules is usually achieved by using a uniformly arranged alignment film, and the uniformity of the liquid crystal orientation directly affects the quality of the display.
  • the orientation technology of the alignment film at present, the conventional friction orientation technology and the non-friction orientation technology developed in recent years have been industrially employed.
  • the rubbing alignment technique is to rub the alignment film formed on the surface of the substrate by a high-speed rotating rubbing roller in the manufacturing process of the liquid crystal panel, so that the alignment film molecules are aligned in the rubbing direction.
  • the friction orientation technology is simple in process and easy to industrialize.
  • the commonly used non-friction orientation technology is mainly photo-alignment technology.
  • the light-controlled orientation technology can avoid contamination due to static electricity and dust, and can improve the viewing angle of the display device.
  • the alignment layer is formed of a polymerized reactive mesogen, which includes a liquid crystal cell at an end of the liquid crystal cell. a flexible spacer, and a photoreactive end group at the end of the flexible spacer.
  • a method of fabricating an alignment layer comprising: depositing an alignment material on a substrate, the alignment material comprising the reactive liquid crystal cell and a photoinitiator; applying an electric field in a predetermined direction to the alignment material; The alignment material of the electric field applies UV light to polymerize the photoreactive end groups with each other.
  • the present disclosure provides the following technical solutions.
  • A represents a photoreactive end group
  • the photoreactive end group is, for example, an acrylate group or an decyl acrylate group
  • B and B are the same or different and each represents a single bond or a mercapto group, an ethyl group, a propyl group, a butyl group
  • C represents an alkoxybiphenyl group, a fatty acid ester group of a cholesterol, a Schiff base, an azophenyl group, a distyryl group, a diphenylethynyl group, a biphenyl group, a hydrazine group.
  • Triphenyl, D represents a terminal group having no polymerization activity, and is, for example, a cyano group, -C3H7, -OCF3, -NCS or the like.
  • polymerizable end group means an end group which does not undergo polymerization.
  • An alignment material comprising the composite represented by the above formula (1).
  • the present disclosure also provides an oriented film formed of the above-described alignment material.
  • the method for preparing the above oriented film comprises the following steps:
  • the alignment material is applied onto the substrate to form an alignment film, and then an electric field is applied to the alignment film, and the alignment film is irradiated with ultraviolet light.
  • the voltage value of the electric field is, for example, 5 15 V, and the irradiation intensity of the ultraviolet light is, for example, 0.05 to 3 J/cm 2 .
  • the present disclosure also provides a liquid crystal panel prepared by using the above alignment film, and a display device including the liquid crystal panel.
  • the present disclosure also relates to the use of the above-described alignment material in fabricating a liquid crystal panel.
  • the photoreactive end groups of the oriented materials of the present disclosure are polymerized to form a stable polymer network structure, and the polymer network structure can maintain the set material after the electric field is removed.
  • the tilt angle therefore, the liquid crystal panel prepared by using the orientation material of the present disclosure can effectively improve the orientation effect.
  • FIG. 1 is a schematic view showing an orientation material used in a conventional frictionless orientation technique and a reaction principle thereof Figure
  • Figure 2 is a schematic view showing an orientation material of the present disclosure and a reaction principle thereof;
  • 3a to 3c are schematic views showing a process of preparing a liquid crystal panel.
  • the alignment material 4-cyano-4'-(6-acrylate hexyloxy)biphenyl prepared in Example 1 was coated on the array substrate 11 and the color filter substrate 21, respectively, to form a thickness. It is an orientation film 2 of 800 ⁇ 200A.
  • the array substrate 11 coated with the alignment film and the color filter substrate 21 were paired, and the thickness of the liquid crystal cell was controlled to 3.6 ⁇ m.
  • a voltage of about 10 V is applied perpendicularly between the array substrate 11 and the color filter substrate 21, and then the intensity of the alignment layer on both sides is about 0.05 to 3 J/cm 2 at about 230 ° C (for example, 3 J/cm 2 ).
  • UV light the irradiation time is 15min-30min (for example, 20min), at this time, as shown in Fig. 3c, the photoreactive end groups 5 in the alignment film are polymerized with each other to form a polymer network structure 5', thereby preparing a liquid crystal. panel.
  • An oriented film was prepared by an orientation material SE-6414 (manufactured by Nissan) in accordance with a conventional rubbing alignment technique.
  • a liquid crystal panel was prepared using the same substrate and liquid crystal as in Example 1.
  • Example 1 The liquid crystal panels prepared in Example 1 and Comparative Examples were observed with a microscope.
  • the liquid crystal panel of the comparative example showed a distinct crystal domain, and the liquid crystal panel of Example 1 did not exhibit this phenomenon, and the liquid crystal panel of Example 1 had an even alignment effect.
  • the use of the oriented film of the present disclosure can avoid the influence of the dust generated during the rubbing process on the orientation effect, and the orientation material of the end group 4 having the photoreactive end group 5 at one end and the non-polymerizable activity at the other end can be used. The influence of the side reaction product on the orientation effect is avoided, thereby achieving a good orientation effect.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

一种复合物、取向材料、取向膜以及取向膜的制备方法和取向材料的应用。所述复合物通式为A-B-C-B'-D其中，A表示光反应端基，B、B'相同或不同，表示单键或甲基、乙基、丙基、丁基、戊基、己基，C表示烷氧基联苯基、胆固醇的脂肪酸酯基、希夫碱基、偶氮苯基、二苯乙烯基、二苯乙炔基、联苯基、联三苯基，D表示无聚合活性的端基。所述取向材料含有所述复合物，所述取向膜由所述取向材料形成，所述取向材料能够改善液晶面板的取向效果。

Description

复合物、 取向材料、 取向膜以及制备方法和应用 技术领域
本公开涉及一种复合物、 取向材料以及由该取向材料形成的取向膜， 还 涉及该取向膜的制备方法和应用。 背景技术
在液晶面板的制作过程中， 通常利用均一排布的取向膜实现对液晶分子 的定向， 而液晶定向的均一性直接影响着显示器的品质。 针对取向膜的取向 技术， 目前， 工业上釆用传统的摩擦取向技术和近年来发展起来的非摩擦取 向技术。 其中， 摩擦取向技术是在液晶面板的制作工艺中利用高速旋转的摩 擦辊摩擦形成于基板表面的取向膜， 从而使取向膜分子沿摩擦方向均一定向 排列。 摩擦取向技术工艺简单， 易于工业化生产。 但是， 同时也存在以下缺 点：在摩擦过程中产生大量的灰尘微粒，对取向膜和器件都会产生不良影响， 并且需要后续工艺进行处理， 增加了工艺时间和成本； 在摩擦过程中产生静 电， 对 TFT-LCD的晶体管会造成击穿； 应用于大面积基板时， 难以控制摩 擦的均匀性等。 目前常用的非摩擦取向技术主要是光控取向技术。 光控取向 技术可以避免由于静电、 灰尘所造成的污染， 并且可以改善显示器件的视角 问题。
已知有一种液晶显示设备的取向层， 如图 1所示， 该取向层由已聚合的 反应性液晶元形成， 该已聚合的反应性液晶元包括液晶元、 在该液晶元的端 部处的柔性间隔物， 以及在该柔性间隔物的端部处的光反应端基。 并且还已 知一种制造取向层的方法， 该方法包括： 在基板上沉积取向材料， 该取向材 料包括上述反应性液晶元和光引发剂；向该取向材料施加沿预定方向的电场； 以及向施加了电场的取向材料施加 UV光， 以使该光反应端基彼此聚合。 但 是， 当照射 UV光时， 两端光反应端基随机发生聚合反应， 不仅产生主反应 的聚合物网络结构， 还将发生副反应， 导致生成不必要的副产物。 该副产物 将会影响接触到的液晶， 从而导致取向效果不良。 发明内容
为了改善液晶面板的取向效果， 本公开提供以下技术方案。
式（1 )所示的复合物，
A-B-C-B'-D ( 1 )
其中， A表示光反应端基， 所述光反应端基例如为丙烯酸酯基或丙烯酸 曱酯基， B、 B，相同或不同， 表示单键或曱基、 乙基、 丙基、 丁基、 戊基、 己基， 例如为己基， C表示烷氧基联苯基、 胆固醇的脂肪酸酯基、 希夫碱基、 偶氮苯基、 二苯乙烯基、 二苯乙炔基、 联苯基、 联三苯基， D表示无聚合活 性的端基， 例如为氰基、 -C3H7、 -OCF3、 -NCS等。
在本文中， 术语 "无聚合活性的端基" 表示不进行聚合反应的端基。 一种取向材料， 包含上述式（1 )所示的复合物。
本公开还提供一种取向膜， 其由上述取向材料形成。
上述取向膜的制备方法包括以下步骤：
在基板上涂布上述取向材料，形成取向膜，然后对所述取向膜施加电场， 向所述取向膜照射紫外光。
其中， 所述电场的电压值例如为 5 15V, 所述紫外光的照射强度例如为 0.05~3J/cm2。
本公开还提供利用上述取向膜制备得到的液晶面板， 以及包括该液晶面 板的显示装置。
另外， 本公开还涉及上述取向材料在制作液晶面板中的应用。
如图 2所示， 本公开的取向材料的光反应端基发生聚合反应形成一层稳 定的聚合物网络结构， 聚合物网络结构可以在去掉电场作用后， 使取向材料 仍能保持设定的预倾角， 所以， 利用本公开的取向材料制备得到的液晶面板 能够有效地改善取向效果。 附图说明
为了更清楚地说明本公开实施例的技术方案， 下面将对实施例的附图作 简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例， 而非对本公开的限制。
图 1是表示用于现有无摩擦取向技术中的取向材料及其反应原理的示意 图；
图 2是表示本公开的取向材料及其反应原理的示意图;
图 3a〜图 3c是表示液晶面板的制备过程的示意图。
编号说明
2. 取向层
3. 液晶层
4. 无聚合活性的端基
5. 光反应端基
5'. 聚合物网络结构
11 . 阵列基板
21 . 彩膜基板 具体实施方式
为使本公开实施例的目的、 技术方案和优点更加清楚， 下面将结合本公 开实施例的附图，对本公开实施例的技术方案进行清楚、 完整地描述。显然， 所描述的实施例是本公开的一部分实施例， 而不是全部的实施例。 基于所描 述的本公开的实施例， 本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例， 都属于本公开保护的范围。 本公开本公开
实施例 1
取向材料的制备
向 500mL三口瓶中加入 130mL无水乙醇与 130mL蒸馏水， 并向其中加 入 O.lmol 4-氰基 -4'-羟基联苯和 0.2mol 1,6-二溴己烷。在搅拌状态下水浴加热 回流。 待全部溶解后， 向其中緩慢滴加 40mL氢氧化钾（0.25mol)的乙醇水 溶液（以体积比计， 乙醇： 水 =1:1) 。 滴加结束后， 继续反应 4小时。 停止 反应， 趁热抽滤， 得白色固体， 干燥后用 1,2-二氯乙烷重结晶， 得白色片状 晶体即 4-氰基 -4'- (6-溴己氧基）联苯。
1H-NMR (200MHz, CDC13 ) ： δ 1.446 (4Η, m) , 1.784 (2Η, m) , 1.817 (2H, m) , 3.431 (2H, q) , 3.991 (2H, q) , 6.945 (4H, m) , 7.452 (4H, m) 。
向 250mL三口烧瓶中加入 0.05mol丙烯酸钾、 0.025mol 4-^ -4'- (6- 溴己 tt )联苯、 0.2g四丁基溴化铵和 180mL经干燥处理的 Ν,Ν-二曱基曱 酰胺， 氮气保护下一边进行机械搅拌一边升温至 60 °C , 反应 48小时。 停止 反应后， 自然冷却至室温， 过滤， 除去生成的盐 （溴化钾） ， 将滤液蒸发除 去溶剂， 得固体， 水洗该固体， 干燥后得粗品。 在无水乙醇中对所得的粗品 进行重结晶， 得白色固体、 即 4-tt-4'- ( 6-丙烯酸酯基己氧基）联苯。
1H-NMR ( 200MHz, CDC13 ) ： δ 1.463-1.861 ( 8Η, m ) , 3.972-4.025 ( 2Η, m ) , 4.156-4.253 ( 2H, m ) , 5.801 ( 1H, d ) , 6.060 ( 1H, q ) , 6.377 ( 1H, dd ) , 6.922-7.547 ( 8H, m ) 。
液晶面板的制备
如图 3a所示，在阵列基板 11和彩膜基板 21上分别涂布实施例 1中制备 的取向材料 4-氰基 -4'- ( 6-丙烯酸酯基己氧基）联苯， 形成厚度为 800±200A 的取向膜 2。
将涂有取向膜的阵列基板 11和彩膜基板 21对盒， 并使液晶盒厚控制在 3.6μπι。 向其中滴入 Chisso ZBE-5129XX液晶（ \n=0.103 ) , 形成液晶层 3, 然后封口， 清洗。
如图 3b所示， 在阵列基板 11和彩膜基板 21之间垂直施加 10V左右的 电压， 然后在约 230°C下分别向两侧取向层照射强度为 0.05~3J/cm2 (例如 3J/cm2 )的 UV光， 照射时间为 15min-30min (例如为 20min ) , 此时， 如图 3c所示， 取向膜中的光反应端基 5彼此聚合， 形成聚合物网络结构 5' , 从而 制备得到液晶面板。
比较例
利用取向材料 SE-6414 ( Nissan制 ) , 按照传统的摩擦取向技术制备取 向膜。 并使用与实施例 1相同的基板和液晶制备液晶面板。
利用显微镜对实施例 1和比较例中制备得到的液晶面板进行观察。
比较例中的液晶面板出现明显的晶畴， 而实施例 1中的液晶面板未出现 该现象， 并且， 实施例 1中的液晶面板取向效果均匀一致。 这是因为使用本 公开的取向膜可以避免摩擦过程中产生的灰尘对取向效果的影响， 并且使用 本公开的一端为光反应端基 5、 另一端为无聚合活性的端基 4的取向材料可 避免副反应产物对取向效果的影响， 从而达到了良好的取向效果。
以上所述仅是本公开的示范性实施方式， 而非用于限制本公开的保护范 围， 本公开的保护范围由所附的权利要求确定。

Claims

权利要求书
1、 式（1 )所示的复合物，
A-B-C-B'-D ( 1 )
其中， A表示光反应端基， B、 B，相同或不同， 表示单键或曱基、 乙基、 丙基、 丁基、 戊基、 己基， C表示烷氧基联苯基、 胆固醇的脂肪酸酯基、 希 夫碱基、 偶氮苯基、 二苯乙烯基、 二苯乙炔基、 联苯基、 联三苯基， D表示 无聚合活性的端基。
2、 根据权利要求 1所述的复合物， 其中， 在式（1 ) 中， A表示丙烯酸 酯基或丙烯酸曱酯基。
3、 根据权利要求 1或 2所述的复合物， 其中， 在式（1 ) 中， B表示己 基， B'表示单键， C表示联苯基， D表示氰基。
4、 一种取向材料， 其中， 包含权利要求 1~3中任一项所述的复合物。
5、 一种取向膜， 其中， 由权利要求 4所述的取向材料形成。
6、 一种制备权利要求 5所述的取向膜的方法， 其中， 包括以下步骤： 在基板上涂布权利要求 4所述的取向材料， 形成取向膜，
对所述取向膜施加电场，
向所述取向膜照射紫外光。
7、 根据权利要求 6所述的方法， 其中， 所述电场的电压值为 5 15V, 所述紫外光的照射强度为 0.05~3J/cm2, 照射时间为 15min~30min。
8、 一种液晶面板， 其中， 包括权利要求 5所述的取向膜。
9、 一种显示装置， 其中， 包括权利要求 8所述的液晶面板。
10、 权利要求 4所述的取向材料在制作液晶面板中的应用。
PCT/CN2012/087191 2012-03-28 2012-12-21 复合物、取向材料、取向膜以及制备方法和应用 Ceased WO2013143333A1 (zh)

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CN104212463B (zh) * 2013-05-31 2016-03-16 京东方科技集团股份有限公司 取向和平坦化材料组合物，显示装置及显示颜色调整方法

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