WO2016070523A1 - 光刻胶组合物及其制备方法 - Google Patents

光刻胶组合物及其制备方法 Download PDF

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WO2016070523A1
WO2016070523A1 PCT/CN2015/072544 CN2015072544W WO2016070523A1 WO 2016070523 A1 WO2016070523 A1 WO 2016070523A1 CN 2015072544 W CN2015072544 W CN 2015072544W WO 2016070523 A1 WO2016070523 A1 WO 2016070523A1
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photoresist composition
structural formula
butyl
dye
content
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PCT/CN2015/072544
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English (en)
French (fr)
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李吉
李泳锐
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深圳市华星光电技术有限公司
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Priority to US14/428,357 priority Critical patent/US9657123B2/en
Publication of WO2016070523A1 publication Critical patent/WO2016070523A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
    • C08F212/02—Monomers containing only one unsaturated aliphatic radical
    • C08F212/32—Monomers containing only one unsaturated aliphatic radical containing two or more rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
    • 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
    • G03F7/004—Photosensitive materials
    • G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds

Definitions

  • the present invention relates to the field of liquid crystal display manufacturing, and more particularly to a photoresist composition for a color filter and a method of fabricating the same.
  • the color filter (CF) is an important component of a liquid crystal display (LCD) and is a source of color for LCD production.
  • the CF layer is formed by a series of yellow light processes by a color photoresist material (Photoresist).
  • a commonly used CF photoresist material is formed by dissolving and dispersing a polymer, a monomer, a photo initator, and a pigment in a solvent.
  • the pigment therein is a substance that provides CF to realize color.
  • Another object of the present invention is to provide a method for preparing a photoresist composition, which reduces the composition of the photoresist composition, simplifies the preparation process of the photoresist composition, and produces a photoresist composition.
  • the color effect is good, and at the same time, it has better thermal stability and light stability.
  • the present invention provides a photoresist composition
  • a photoresist composition comprising a color polymer obtained by grafting a dye molecule into a polymer molecule by a chemical bond.
  • the structural formula of the color polymer is Wherein at least one of R 1 to R 8 is a dye group.
  • the dye groups are azo, anthraquinone, xanthene, blue pigment, dioxazine or triphenylmethane.
  • the substituent groups other than the dye group in R 1 to R 8 are -CN, -H, -COOH, -C n H 2n+1 , -OC n H 2n+1 , n is a positive integer of 1-10, and the substituent groups other than the dye group in R 1 to R 8 are the same or different.
  • R is methyl, ethyl, propyl, isopropyl, n-butyl or t-butyl;
  • the structural formula of the blue pigments is Wherein R is methyl, ethyl, propyl, isopropyl, n-butyl or t-butyl, and X is a halogen element;
  • R is methyl, ethyl, propyl, isopropyl, n-butyl or t-butyl, and X is a halogen element.
  • the photoresist composition further includes a monomer, a photoinitiator, and a solvent, and the mass percentage of each component in the photoresist composition is: the content of the color polymer accounts for the photoresist composition. 2 to 15% by weight of the total amount, the content of the monomer is 3 to 10% by weight of the total amount of the photoresist composition, and the content of the photoinitiator is 0.1 to 0.6% by weight of the total amount of the photoresist composition.
  • the solvent is present in an amount of from 70 to 90% by weight based on the total of the photoresist composition.
  • the invention also provides a preparation method of a photoresist composition, comprising:
  • Step 2 The reactive dye molecule and the polymer monomer are polymerized to synthesize a color polymer.
  • the structural formula of the reactive dye molecule in the step 1 is
  • the chemical reaction equation for synthesizing the color polymer in the step 2 is:
  • reaction conditions are as follows: using azobisisobutyronitrile or dibenzoyl peroxide as a radical initiator, the radical initiator is used in a concentration of 2.0 to 10.0 mol%; using tetrahydrofuran, N, N-di Methylpropanamide or acetone is used as a solvent; it is carried out at a temperature of 40 to 100 ° C under an inert gas atmosphere.
  • the present invention also provides a photoresist composition
  • a photoresist composition comprising a color polymer obtained by grafting a dye molecule into a polymer molecule by a chemical bond;
  • the structural formula of the color polymer is Wherein at least one of R 1 to R 8 is a dye group;
  • the dye groups are azo, anthraquinone, xanthene, blue pigment, dioxazine or triphenylmethane;
  • substituent groups other than the dye group in R 1 to R 8 are -CN, -H, -COOH, -C n H 2n+1 , -OC n H 2n+1 , n is a positive integer of 1-10, and the substituent groups other than the dye group in R 1 to R 8 are the same or different;
  • the photoresist composition further comprises a monomer, a photoinitiator and a solvent
  • the mass percentage of each component in the photoresist composition is: the content of the color polymer accounts for photoresist 2 to 15% by weight of the total composition, the content of the monomer is 3 to 10% by weight based on the total amount of the photoresist composition, and the content of the photoinitiator is 0.1 to 0.6 wt% of the total amount of the photoresist composition.
  • the solvent is contained in an amount of 70 to 90% by weight based on the total amount of the photoresist composition.
  • the present invention provides a photoresist composition and a method for preparing the same, which uses a color polymer instead of a conventional pigment, thereby avoiding difficulty in pigments in conventional photoresist compositions.
  • the problem of dispersion and the problem of poor contrast and brightness since the color polymer has bright color, high transmittance, good thermal stability and light stability, the photoresist composition of the invention has better color development effect and Preferred thermal stability and light stability.
  • the preparation method of the photoresist composition provided by the invention reduces the composition in the photoresist composition, simplifies the preparation process of the photoresist composition, and the obtained photoresist composition has good color development effect. At the same time, it has better thermal stability and light stability.
  • the present invention provides a photoresist composition for fabricating a color filter layer of a liquid crystal display in place of a conventional color resist material, comprising: a color polymer, a monomer, a photo initator, and a solvent.
  • the color polymer is a dye group-containing polymer obtained by grafting a dye molecule having a chromogenic function to a polymer molecule by a chemical bond.
  • the monomer may be an acrylate of a polyhydric alcohol, such as And wherein R is an alkyl group (-C n H 2n+1 ).
  • the photoinitiator may be acetophenone, biimidazole, benzoin (benzoin) or benzophenone, etc.; wherein the acetophenone is ⁇ , ⁇ -diethoxy Acetophenone, 2,2-dimethyl- ⁇ -hydroxyacetophenone (HMPP), or 2-methyl-2-morpholino-1-(4-methylphenylthio)propane-1- A ketone or the like; the benzoin (benzoin) is benzoyl, benzophenone, or benzoin ether.
  • the solvent is an ester, ether or ketone solvent, such as diethylene glycol dimethyl ether, diethylene glycol diethyl ether, ethylene glycol dibutyl ether, ethylene glycol ethyl ether acetate, diethylene glycol Alcohol ether acetate, diethylene glycol butyl ether acetate, propylene glycol monomethyl ether ester (PGMEA), 3-ethoxypropionic acid Ester (EEP), 3-methoxyacetic acid butyl ester, cyclohexanone, or isophorone.
  • PMEA propylene glycol monomethyl ether ester
  • EEP 3-ethoxypropionic acid Ester
  • 3-methoxyacetic acid butyl ester cyclohexanone, or isophorone.
  • the mass percentage of each component in the photoresist composition is: the content of the color polymer is 2-15 wt% of the total amount of the photoresist composition, and the content of the monomer accounts for the photoresist combination.
  • the content of the photoinitiator is from 0.1 to 0.6% by weight based on the total amount of the photoresist composition, and the content of the solvent is from 70 to 90% by weight based on the total amount of the photoresist composition.
  • R 1 to R 8 are a substituent group, and at least one of R 1 to R 8 is a dye group.
  • the substituent groups other than the dye group in R 1 to R 8 are -CN, -H, -COOH, -C n H 2n+1 , -OC n H 2n+1 , n is a positive integer of 1-10, and the substituent groups other than the dye group in R 1 to R 8 are the same or different.
  • the dye groups are azo, anthraquinone, xanthene, cyanine, dioxazine or triphenylmethane. Wait.
  • R is methyl, ethyl, propyl, isopropyl, n-butyl or t-butyl;
  • R is methyl, ethyl, propyl, isopropyl, n-butyl or tert-butyl, and X is a halogen element such as Cl, Br, I;
  • R is methyl, ethyl, propyl, isopropyl, n-butyl or t-butyl, and the like, and X is a halogen element such as Cl, Br, I.
  • the invention also provides a preparation method of a photoresist composition, comprising:
  • the structural formula of the reactive dye molecule may be
  • the conditions of the reaction were as follows: tetrahydrofuran (THF) as a solvent, triethylamine as a catalyst, and stirring at 60 to 80 ° C under a N 2 atmosphere.
  • THF tetrahydrofuran
  • the conditions of the reaction were as follows: tetrahydrofuran (THF) as a solvent, triethylamine as a catalyst, and stirring at 60 to 80 ° C under a N 2 atmosphere.
  • THF tetrahydrofuran
  • the conditions of the reaction were as follows: tetrahydrofuran (THF) as a solvent, triethylamine as a catalyst, and stirring at 60 to 80 ° C under a N 2 atmosphere.
  • THF tetrahydrofuran
  • Step 2 The reactive dye molecule and the polymer monomer are polymerized to synthesize a color polymer.
  • Reactive dye molecule As an example, the reaction equation for one embodiment of the color polymer obtained by its synthesis is:
  • the reaction conditions of the reaction are as follows: a radical initiator such as azobisisobutyronitrile (AIBN) or dibenzoyl peroxide (BPO) is used to accelerate the polymerization reaction, and the use concentration of the radical initiator is 2.0 to 10.0. Mol%; using tetrahydrofuran, N,N-dimethylpropionamide or acetone as solvent; It is carried out under the temperature of 40 to 100 ° C under the protection of an inert gas such as nitrogen.
  • a radical initiator such as azobisisobutyronitrile (AIBN) or dibenzoyl peroxide (BPO) is used to accelerate the polymerization reaction, and the use concentration of the radical initiator is 2.0 to 10.0. Mol%; using tetrahydrofuran, N,N-dimethylpropionamide or acetone as solvent; It is carried out under the temperature of 40 to 100 ° C under the protection of an inert gas such as nitrogen.
  • the preparation method of the photoresist composition of the invention further comprises the following steps:
  • Step 3 The obtained color polymer is mixed with a monomer, a photoinitiator, and a solvent to prepare a photoresist composition.
  • the mass percentage (the percentage of each component in the total amount of the photoresist composition) is 2 to 15% by weight of the color polymer, 3 to 10% by weight of the monomer, and 0.1 to 0.6% by weight of the photoinitiator. And 70 to 90% by weight of a solvent mixture to obtain a photoresist composition. Since the reactive dye molecules are grafted onto the polymer molecules, the photoresist composition is only composed of a color polymer, a monomer, a photoinitiator, a solvent, and the like. The composition of the four components reduces the preparation process of the photoresist composition.
  • the invention provides a photoresist composition and a preparation method thereof.
  • the photoresist composition adopts a color polymer instead of a conventional pigment, thereby avoiding the problem that the pigment in the conventional photoresist composition is difficult to disperse and the contrast and
  • the problem of poor brightness is due to the bright color of the color polymer, high transmittance, good thermal stability and light stability, so that the photoresist composition of the invention has better color development effect and better thermal stability. And light stability.
  • the preparation method of the photoresist composition provided by the invention reduces the composition in the photoresist composition, simplifies the preparation process of the photoresist composition, and the obtained photoresist composition has good color development effect. At the same time, it has better thermal stability and light stability.

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  • Physics & Mathematics (AREA)
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Abstract

提供一种光刻胶组合物及其制备方法。所述光刻胶组合物包括彩色聚合物，所述彩色聚合物由染料分子通过化学键接枝于聚合物分子中得到。所述制备方法减少了光刻胶组合物中的成分，简化了光刻胶组合物的制备工艺，制得的所述光刻胶组合物具有较好的显色效果以及较佳的热稳定性和光稳定性。

Description

光刻胶组合物及其制备方法 技术领域
本发明涉及液晶显示器制造领域，尤其涉及一种用于彩色滤光片的光刻胶组合物及其制备方法。
背景技术
彩色滤光层(CF，color filter)是液晶显示器(LCD，Liquid Crystal Display)的重要组成部分，是LCD产生彩色的来源。CF层是由彩色光阻材料(Photoresist)经过一系列黄光制程后形成的。常用的CF光阻材料是将树脂(polymer)，单体(monomer)，光引发剂(photo initator)和颜料(pigment)溶解分散在溶剂(solvent)后形成的。其中的颜料(pigment)是提供CF实现彩色的物质。从背光(Backlight)发出的光，经过CF层时，只有对应R，G，B波段的光透过，其他波段的光被pigment吸收，所以经过CF层后产生RGB颜色。
目前常用的这种含pigment的彩色光阻材料还有很多问题需要克服：1、从材料制备上讲，由于通常使用的pigment是不溶于有机溶剂，而是将pigment通过分散技术，形成粒径在60～100nm的颗粒在分散剂的作用下而分散在彩色光阻材料中。Pigment的分散技术和分散工艺往往是材料厂商难以突破的问题。2、从材料性能上讲，既然是以颗粒的状态分散在材料中，必然对光由反射和散射的作用存在，这将必然导致LCD对比度和亮度的下降。3、从制程方面，含pigment的彩色光阻材料的分辨率又会受到较大的限制，一般难以做到小于2um的形状。
目前，各大彩色光阻材料厂商都在积极开发彩色染料(dye)材料。Dye具有更鲜艳的色彩，并且dye分子是完全溶解在溶剂之中，如此dye具有比pigment更高的穿透率。若用dye来取代pigment，则可以克服pigment的分散技术难题以及对比和亮度不佳的问题。然而，dye分子自身的热稳定性和光稳定性不佳，从而限制了dye在彩色光刻胶中的应用。
发明内容
本发明的目的在于提供一种光刻胶组合物，其采用一种彩色聚合物代替传统的颜料，避免了传统光刻胶组合物中颜料难以分散的问题以及对比和亮度不佳的问题，由于该彩色聚合物色彩鲜艳，穿透率高，热稳定性和 光稳定性好，从而本发明的光刻胶组合物具有较好的显色效果以及较佳的热稳定性和光稳定性。
本发明的另一目的在于提供一种光刻胶组合物的制备方法，减少了光刻胶组合物中的成分，简化了光刻胶组合物的制备工艺，制得的光刻胶组合物显色效果好，同时具有较佳的热稳定性和光稳定性。
为实现上述目的，本发明提供了一种光刻胶组合物，包括彩色聚合物，所述彩色聚合物由染料分子通过化学键接枝于聚合物分子中得到。
所述彩色聚合物的结构通式为
Figure PCTCN2015072544-appb-000001
其中，R1-R8中至少一个为染料基团。
所述染料基团为偶氮类，蒽醌类，氧杂蒽类，蓝色素类，二恶嗪类或三苯甲烷类。
所述R1-R8中除染料基团以外的其它取代基团为-CN，-H，-COOH，-CnH2n+1，-OCnH2n+1，
Figure PCTCN2015072544-appb-000002
n为1-10的正整数，所述R1-R8中除染料基团以外的其它取代基团相同或不同。
所述氧杂蒽类的结构通式为
Figure PCTCN2015072544-appb-000003
其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基；
所述蓝色素类的结构通式为
Figure PCTCN2015072544-appb-000004
其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基，X为卤族元素；
所述偶氮类的结构式为
Figure PCTCN2015072544-appb-000005
所述蒽醌类的结构式为
Figure PCTCN2015072544-appb-000006
所述二恶嗪类的结构式为
Figure PCTCN2015072544-appb-000007
所述三苯甲烷类的结构通式为
Figure PCTCN2015072544-appb-000008
其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基，X为卤族元素。
所述光刻胶组合物还包括单体、光引发剂和溶剂，且所述光刻胶组合物中各组分的质量百分含量为：所述彩色聚合物的含量占光刻胶组合物总量的2～15wt％，所述单体的含量占光刻胶组合物总量的3～10wt％，所述光引发剂的含量占光刻胶组合物总量的0.1～0.6wt％，所述溶剂的含量占光刻胶组合物总量的70～90wt％。
本发明还提供一种光刻胶组合物的制备方法，包括：
步骤1、合成活性染料分子；
步骤2、所述活性染料分子与聚合物单体通过聚合反应合成彩色聚合物。
所述步骤1中活性染料分子的结构式为
Figure PCTCN2015072544-appb-000009
Figure PCTCN2015072544-appb-000010
所述步骤2得到的彩色聚合物的结构式为
Figure PCTCN2015072544-appb-000011
所述步骤2合成该彩色聚合物的化学反应方程式为：
Figure PCTCN2015072544-appb-000012
该反应的条件为：采用偶氮二异丁腈或过氧化二苯甲酰作为自由基引发剂，所述自由基引发剂的使用浓度为2.0～10.0mol％；采用四氢呋喃，N,N-二甲基丙酰胺或丙酮作为溶剂；在40～100℃的温度条件下，并在惰性气体保护下进行。
本发明还提供了一种光刻胶组合物，包括彩色聚合物，所述彩色聚合物由染料分子通过化学键接枝于聚合物分子中得到；
其中，所述彩色聚合物的结构通式为
Figure PCTCN2015072544-appb-000013
其中，R1-R8中至少一个为染料基团；
其中，所述染料基团为偶氮类，蒽醌类，氧杂蒽类，蓝色素类，二恶嗪类或三苯甲烷类；
其中，所述R1-R8中除染料基团以外的其它取代基团为-CN，-H，-COOH，-CnH2n+1，-OCnH2n+1，
Figure PCTCN2015072544-appb-000014
n为1-10的正整数，所述R1-R8中除染料基团以外的其它取代基团相同或不同；
其中，所述光刻胶组合物还包括单体、光引发剂和溶剂，且所述光刻胶组合物中各组分的质量百分含量为：所述彩色聚合物的含量占光刻胶组合物总量的2～15wt％，所述单体的含量占光刻胶组合物总量的3～10wt％，所述光引发剂的含量占光刻胶组合物总量的0.1～0.6wt％，所述溶剂的含量占光刻胶组合物总量的70～90wt％。
本发明的有益效果：本发明提供的一种光刻胶组合物及其制备方法，该光刻胶组合物采用一种彩色聚合物代替传统的颜料，避免了传统光刻胶组合物中颜料难以分散的问题以及对比和亮度不佳的问题，由于该彩色聚合物色彩鲜艳，穿透率高，热稳定性和光稳定性好，从而本发明的光刻胶组合物具有较好的显色效果以及较佳的热稳定性和光稳定性。本发明提供的一种光刻胶组合物的制备方法，减少了光刻胶组合物中的成分，简化了光刻胶组合物的制备工艺，制得的光刻胶组合物显色效果好，同时具有较佳的热稳定性和光稳定性。
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。
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进行详细描述。
本发明提供一种用于替代传统彩色光阻材料制作液晶显示器的彩色滤光层的光刻胶组合物，其包括：彩色聚合物、单体(monomer)、光引发剂(photo initator)和溶剂(solvent)；所述彩色聚合物为含有染料基团的聚合物，其由具有生色功能的染料分子通过化学键接枝于聚合物分子中得到。
所述单体(monomer)可以为多羟基醇的丙烯酸酯类,如
Figure PCTCN2015072544-appb-000015
等，其中R基团为烷基(-CnH2n+1)。
所述光引发剂(photo initiator)可以为苯乙酮类、双咪唑类、苯偶姻类(安息香)或二苯甲酮等；其中，所述苯乙酮类为α，α-二乙氧基苯乙酮，2，2-二甲基-α-羟基苯乙酮(HMPP)，或2-甲基-2-吗啉代-1-(4-甲基苯硫基)丙烷-1-酮等；所述苯偶姻类(安息香)为偶苯酰、二苯乙酮醇、或苯偶姻醚等。
所述溶剂(Solvent)为酯类、醚类或酮类溶剂，如二乙二醇二甲醚、二乙二醇二***、乙二醇二丁醚、乙二醇***醋酸酯、二乙二醇***醋酸酯、二乙二醇丁醚醋酸酯、丙二醇单甲基醚酯(PGMEA)、3-乙氧基丙酸乙 酯(EEP)、3-甲氧基乙酸丁酯、环己酮、或异佛尔酮等。
所述光刻胶组合物中各组分的质量百分含量为：所述彩色聚合物的含量占光刻胶组合物总量的2～15wt％，所述单体的含量占光刻胶组合物总量的3～10wt％，所述光引发剂的含量占光刻胶组合物总量的0.1～0.6wt％，所述溶剂的含量占光刻胶组合物总量的70～90wt％。
所述彩色聚合物的结构式为
Figure PCTCN2015072544-appb-000016
其中，R1-R8为取代基团，R1-R8中至少一个为染料基团。
所述R1-R8中除染料基团以外的其它取代基团为-CN，-H，-COOH，-CnH2n+1，-OCnH2n+1，
Figure PCTCN2015072544-appb-000017
n为1-10的正整数，所述R1-R8中除染料基团以外的其它取代基团相同或不同。
所述染料基团为偶氮(azo)类，蒽醌(anthraquinone)类，氧杂蒽(xanthene)类，蓝色素(cyanine)类，二恶嗪(dioxazine)类或三苯甲烷(triphenylmethane)类等。
所述氧杂蒽类的结构通式为
Figure PCTCN2015072544-appb-000018
其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基等；
所述蓝色素类的结构通式为
Figure PCTCN2015072544-appb-000019
其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基等，X为Cl，Br，I等卤族元素；
所述偶氮类的结构式为
Figure PCTCN2015072544-appb-000020
所述蒽醌类的结构式为
Figure PCTCN2015072544-appb-000021
所述二恶嗪类的结构式为
Figure PCTCN2015072544-appb-000022
所述三苯甲烷类的结构通式为
Figure PCTCN2015072544-appb-000023
其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基等，X为Cl，Br，I等卤族元素。
本发明还提供一种光刻胶组合物的制备方法，包括：
步骤1、合成活性染料分子；
以蒽醌类染料为例，所述活性染料分子的结构式可以为
Figure PCTCN2015072544-appb-000024
Figure PCTCN2015072544-appb-000025
所述活性染料分子
Figure PCTCN2015072544-appb-000026
的合成反应方程式为：
Figure PCTCN2015072544-appb-000027
该反应的条件为：四氢呋喃(THF)做溶剂，三乙胺做催化剂，60～80℃，N2氛围下搅拌进行。
所述活性染料分子
Figure PCTCN2015072544-appb-000028
的合成反应方程式为：
Figure PCTCN2015072544-appb-000029
该反应的条件为：四氢呋喃(THF)做溶剂，三乙胺做催化剂，60～80℃，N2氛围下搅拌进行。
所述活性染料分子
Figure PCTCN2015072544-appb-000030
的合成反应方程式为：
Figure PCTCN2015072544-appb-000031
该反应的条件为：四氢呋喃(THF)做溶剂，三乙胺做催化剂，60～80℃，N2氛围下搅拌进行。
步骤2、所述活性染料分子与聚合物单体通过聚合反应合成彩色聚合物。
以活性染料分子
Figure PCTCN2015072544-appb-000032
为例，利用其合成得到彩色聚合物的一个实施例的反应方程式为：
Figure PCTCN2015072544-appb-000033
该反应的反应条件为：采用偶氮二异丁腈(AIBN)或过氧化二苯甲酰(BPO)等自由基引发剂来加快聚合反应，所述自由基引发剂的使用浓度为2.0～10.0mol％；采用四氢呋喃，N,N-二甲基丙酰胺或丙酮等作为溶剂；在 40～100℃的温度条件下，并在惰性气体(如氮气)保护下进行。
本发明的光刻胶组合物的制备方法，还包括以下步骤：
步骤3、将得到的彩色聚合物与单体、光引发剂和溶剂混合，从而制得光刻胶组合物。
具体地，将质量百分比(各组分含量占光刻胶组合物总量的百分比)为2～15wt％的彩色聚合物，3～10wt％的单体，0.1～0.6wt％的光引发剂，以及70～90wt％的溶剂混合，得到光刻胶组合物，由于将活性染料分子接枝到了聚合物分子上，使光刻胶组合物仅由彩色聚合物、单体、光引发剂以及溶剂等四种组分组成，减少了光刻胶组合物的制备工艺。
本发明提供的一种光刻胶组合物及其制备方法，该光刻胶组合物采用一种彩色聚合物代替传统的颜料，避免了传统光刻胶组合物中颜料难以分散的问题以及对比和亮度不佳的问题，由于该彩色聚合物色彩鲜艳，穿透率高，热稳定性和光稳定性好，从而本发明的光刻胶组合物具有较好的显色效果以及较佳的热稳定性和光稳定性。本发明提供的一种光刻胶组合物的制备方法，减少了光刻胶组合物中的成分，简化了光刻胶组合物的制备工艺，制得的光刻胶组合物显色效果好，同时具有较佳的热稳定性和光稳定性。
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权利要求的保护范围。

Claims (13)

  1. 一种光刻胶组合物，包括彩色聚合物，所述彩色聚合物由染料分子通过化学键接枝于聚合物分子中得到。
  2. 如权利要求1所述的光刻胶组合物，其中，所述彩色聚合物的结构通式为
    Figure PCTCN2015072544-appb-100001
    其中，R1-R8中至少一个为染料基团。
  3. 如权利要求2所述的光刻胶组合物，其中，所述染料基团为偶氮类，蒽醌类，氧杂蒽类，蓝色素类，二恶嗪类或三苯甲烷类。
  4. 如权利要求2所述的光刻胶组合物，其中，所述R1-R8中除染料基团以外的其它取代基团为-CN，-H，-COOH，-CnH2n+1，-OCnH2n+1，
    Figure PCTCN2015072544-appb-100002
    Figure PCTCN2015072544-appb-100003
    n为1-10的正整数，所述R1-R8中除染料基团以外的其它取代基团相同或不同。
  5. 如权利要求3所述的光刻胶组合物，其中，所述氧杂蒽类的结构通式为
    Figure PCTCN2015072544-appb-100004
    其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基；
    所述蓝色素类的结构通式为
    Figure PCTCN2015072544-appb-100005
    其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基，X为卤族元素；
    所述偶氮类的结构式为
    Figure PCTCN2015072544-appb-100006
    所述蒽醌类的结构式为
    Figure PCTCN2015072544-appb-100007
    所述二恶嗪类的结构式为
    Figure PCTCN2015072544-appb-100008
    所述三苯甲烷类的结构通式为
    Figure PCTCN2015072544-appb-100009
    其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基，X为卤族元素。
  6. 如权利要求1所述的光刻胶组合物，其中，所述光刻胶组合物还包括单体、光引发剂和溶剂，且所述光刻胶组合物中各组分的质量百分含量为：所述彩色聚合物的含量占光刻胶组合物总量的2～15wt％，所述单体的含量占光刻胶组合物总量的3～10wt％，所述光引发剂的含量占光刻胶组合物总量的0.1～0.6wt％，所述溶剂的含量占光刻胶组合物总量的70～90wt％。
  7. 一种如权利要求1所述的光刻胶组合物的制备方法，包括：
    步骤1、合成活性染料分子；
    步骤2、所述活性染料分子与聚合物单体通过聚合反应合成彩色聚合物。
  8. 如权利要求7所述的光刻胶组合物的制备方法，其中，所述步骤1中活性染料分子的结构式为
    Figure PCTCN2015072544-appb-100010
    Figure PCTCN2015072544-appb-100011
  9. 如权利要求7所述的光刻胶组合物的制备方法，其中，所述步骤2得到的彩色聚合物的结构式为
    Figure PCTCN2015072544-appb-100012
  10. 如权利要求9所述的光刻胶组合物的制备方法，其中，所述步骤2合成该彩色聚合物的化学反应方程式为：
    Figure PCTCN2015072544-appb-100013
    ，该反应的条件为：采用偶氮二异丁腈或过氧化二苯甲酰作为自由基引发剂，所述自由基引发剂的使用浓度为2.0～10.0mol％；采用四氢呋喃，N,N-二甲基丙酰胺或丙酮作为溶剂；在40～100℃的温度条件下，并在惰性气体保护下进行。
  11. 一种光刻胶组合物，包括彩色聚合物，所述彩色聚合物由染料分子通过化学键接枝于聚合物分子中得到；
    其中，所述彩色聚合物的结构通式为
    Figure PCTCN2015072544-appb-100014
    其中，R1-R8中至少一个为染料基团；
    其中，所述染料基团为偶氮类，蒽醌类，氧杂蒽类，蓝色素类，二恶嗪类或三苯甲烷类；
    其中，所述R1-R8中除染料基团以外的其它取代基团为-CN，-H，-COOH，-CnH2n+1，-OCnH2n+1，
    Figure PCTCN2015072544-appb-100015
    n为1-10 的正整数，所述R1-R8中除染料基团以外的其它取代基团相同或不同。
  12. 如权利要求11所述的光刻胶组合物，其中，所述光刻胶组合物还包括单体、光引发剂和溶剂，且所述光刻胶组合物中各组分的质量百分含量为：所述彩色聚合物的含量占光刻胶组合物总量的2～15wt％，所述单体的含量占光刻胶组合物总量的3～10wt％，所述光引发剂的含量占光刻胶组合物总量的0.1～0.6wt％，所述溶剂的含量占光刻胶组合物总量的70～90wt％。
  13. 如权利要求11所述的光刻胶组合物，其中，所述氧杂蒽类的结构通式为
    Figure PCTCN2015072544-appb-100016
    其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基；
    所述蓝色素类的结构通式为
    Figure PCTCN2015072544-appb-100017
    其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基，X为卤族元素；
    所述偶氮类的结构式为
    Figure PCTCN2015072544-appb-100018
    所述蒽醌类的结构式为
    Figure PCTCN2015072544-appb-100019
    所述二恶嗪类的结构式为
    Figure PCTCN2015072544-appb-100020
    所述三苯甲烷类的结构通式为
    Figure PCTCN2015072544-appb-100021
    其中R为甲基，乙基，丙基，异丙基，正丁基或叔丁基，X为卤族元素。
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