WO2020220549A1 - 染料分散体系及其制备方法、彩色光刻胶、彩色滤光片 - Google Patents

染料分散体系及其制备方法、彩色光刻胶、彩色滤光片 Download PDF

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WO2020220549A1
WO2020220549A1 PCT/CN2019/104170 CN2019104170W WO2020220549A1 WO 2020220549 A1 WO2020220549 A1 WO 2020220549A1 CN 2019104170 W CN2019104170 W CN 2019104170W WO 2020220549 A1 WO2020220549 A1 WO 2020220549A1
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dye
solvent
dispersion system
swelling polymer
dye dispersion
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French (fr)
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饶夙缔
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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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
    • 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
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/56—Acrylamide; Methacrylamide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0084—Dispersions of dyes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0084—Dispersions of dyes
    • C09B67/0085—Non common dispersing agents
    • C09B67/009—Non common dispersing agents polymeric dispersing agent
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • 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 invention relates to the field of display technology, in particular to a dye dispersion system and a preparation method thereof, a color photoresist, and a color filter.
  • Thin Film Transistor Liquid Crystal Display has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a liquid crystal display panel and a backlight module.
  • a liquid crystal display panel is composed of a color filter (CF) substrate, a TFT array substrate, a liquid crystal (LC) sandwiched between the color filter substrate and the TFT array substrate, and a sealant (Sealant).
  • the CF substrate is the main device used by the LCD to realize color display, and its basic composition usually includes: a glass substrate, a black matrix (Black Matrix, BM), a color filter layer, and so on.
  • the color filter layer mainly achieves the effect of color display through the color resist unit formed by the color photoresist.
  • the light emitted by the backlight is modulated by liquid crystal molecules and enters the CF substrate, and passes through the color filter layer on the CF substrate.
  • the red (R) color resistance unit, the green (G) color resistance unit, and the blue (B) color resistance unit are used to filter light, respectively displaying red, green, and blue light, and the color resistance units of different colors respectively transmit correspondingly Color band light to realize the color display of the display.
  • color photoresist is one of the direct materials in liquid crystal displays, and in order to display the target color, color photoresist usually needs to add two or more pigments or dyes.
  • color photoresist undergoes many processes such as high temperature, ultraviolet light and various solvent immersion processes, which requires high reliability of color photoresist.
  • color photoresist The key to reliability is the dispersion stability of the pigment or dye.
  • the proportion of monomolecular dyes with significant advantages in color photoresist is also increasing. High; color photoresist gradually changed from the previous full pigment system to a mixed system of dyes and pigments, and a full dye system.
  • the existing pigments are usually dispersed by a pigment external inducer and a macromolecular resin, and the pigment molecules can be independently and uniformly dispersed through the steric barrier of the resin to form a stable dispersion state.
  • the monomolecular structure of the dye due to the monomolecular structure of the dye, the difficulty of traditional external inducers and resins is significantly increased, so the dispersion stability is poor.
  • the purpose of the present invention is to provide a dye dispersion system, which can effectively solve the problem of poor dye dispersion in the existing color filters, and the preparation method is simple and easy to implement.
  • the purpose of the present invention is also to provide a method for preparing a dye dispersion system.
  • the prepared dye dispersion system can effectively solve the problem of poor dye dispersion in the existing color filter, and the preparation method is simple and easy to implement.
  • the purpose of the present invention is to provide a color photoresist, which adopts the above-mentioned dye dispersion system to effectively solve the problem of poor dye dispersion in existing color filters.
  • Another object of the present invention is to provide a color filter, using the above-mentioned color photoresist, which can effectively solve the problem of poor dye dispersion in the existing color filter.
  • the present invention provides a dye dispersion system, which includes a solvent and dyes and swelling polymers mixed in the solvent;
  • the swelling polymer has a bonding group
  • the swelling polymer swells in the solvent, thereby adsorbing the dye and bonding with the dye through the bonding group.
  • the swelling polymer has at least two bonding groups.
  • the swelling polymer has two bonding groups, which are an adamantyl group and a sulfonated calix[4] aromatic hydrocarbon group.
  • the swelling polymer is a polyacrylamide polymer.
  • the present invention also provides a manufacturing method of the dye dispersion system as described above, which includes the following steps:
  • Step S1 Provide dye and solvent, and mix the dye in the solvent to form a uniformly mixed dye solution
  • Step S2 Provide a swelling polymer, add the swelling polymer to the dye solution, and stir to make the swelling polymer swell in the solvent, thereby adsorbing the dye and bonding with the dye through the bonding group to obtain Dye dispersion system.
  • the preparation method of the swelling polymer is: mixing acrylamide, 1-adamantyl acrylamide, 4-allyloxysulfonated calix[4] aromatic hydrocarbon, methylene bisacrylamide and catalyst in dimethyl In the sulfoxide, polymerization reaction occurs under ultraviolet light, and then washed with dimethyl sulfoxide and water many times to obtain the swollen polymer.
  • acrylamide, 1-adamantyl acrylamide, 4-allyloxysulfonated calix[4] aromatic hydrocarbon, methylene bisacrylamide and catalyst are 50-20: The molar ratio of 3-5:1-3:0.5-1.5:0.5-1.5 is mixed in dimethyl sulfoxide.
  • the present invention also provides a color photoresist, including the above-mentioned dye dispersion system.
  • the present invention also provides a color filter, which is prepared by using the above-mentioned color photoresist.
  • the dye dispersion system of the present invention includes a solvent, dyes mixed in the solvent and a swelling polymer, the swelling polymer has a bonding group, and the swelling polymer is swelled in the solvent. Adsorb the dye and bond with the dye through the bonding group, so that the dye molecule can be stably connected to the polymer bonding group, forming a very stable dye dispersion system, so that the stable dye dispersion system is in the color
  • the photoresist is not susceptible to being affected by high temperature, solvent, and ultraviolet light process to cause performance damage, can effectively solve the problem of poor dye dispersion in the existing color filter, and the preparation method is simple and easy.
  • the prepared dye dispersion system can effectively solve the problem of poor dye dispersion in the existing color filter, and the preparation method is simple and easy to implement.
  • the color photoresist of the present invention adopts the above-mentioned dye dispersion system, which can effectively solve the problem of poor dye dispersion in existing color filters.
  • the color filter of the present invention adopts the above-mentioned color photoresist, which can effectively solve the problem of poor dye dispersion in the existing color filter.
  • Figure 1 is a schematic diagram of the swelling polymer in the dye dispersion system of the present invention.
  • Figure 2 is a schematic diagram of the preparation method of the dye dispersion system of the present invention.
  • the present invention first provides a dye dispersion system, including a solvent and at least one dye and a swelling polymer mixed in the solvent.
  • the swelling polymer has a bonding group; the swelling polymer swells in a solvent, thereby adsorbing the dye and bonding with the dye through the bonding group.
  • the swelling polymer has two bonding groups, the first bonding group 1 of the adamantyl group and the sulfonated calix[4]
  • the swelling polymer is a polyacrylamide polymer.
  • the swelling polymer can be prepared by the following method: the reaction monomers acrylamide, 1-adamantyl acrylamide, 4-allyloxysulfonated calix[4] aromatic hydrocarbon, methylene bisacrylamide And the catalyst are mixed in dimethyl sulfoxide (DMSO) at a molar ratio of 30:4:2:1:1, and polymerized under ultraviolet light to synthesize the required swelling polymer, then use dimethyl sulfoxide and Washing with water multiple times removes unreacted reactive monomers to obtain the swollen polymer.
  • DMSO dimethyl sulfoxide
  • the chemical structural formulas of 1-adamantyl acrylamide and 4-allyloxysulfonated calix[4] aromatic hydrocarbon are shown in the following formula 1 and formula 2, respectively:
  • the catalyst is hydroxycyclohexylphenone.
  • the dye dispersion system of the present invention includes a solvent, dyes and swelling polymers mixed in the solvent, the swelling polymer has a bonding group, and the swelling polymer swells in the solvent to adsorb the dye and bond
  • the group is bonded to the dye, so that the dye molecule can be stably connected to the bonding group of the polymer, forming a very stable dye dispersion system, which makes the stable dye dispersion system less susceptible to color photoresist High temperature, solvents, and ultraviolet light have caused the performance to be destroyed, which can effectively solve the problem of poor dye dispersion in existing color filters.
  • Step S1 Provide the dye and the solvent, and mix the dye in the solvent to form a uniformly mixed dye solution.
  • Step S2 Provide a swelling polymer, add the swelling polymer to the dye solution, and fully mix and stir to make the swelling polymer fully swell in the solvent, thereby adsorbing the dye and bonding with the dye through the bonding group Together, a stable dye dispersion system is obtained.
  • dye A and dye B there are two dyes provided in the step S1, namely dye A and dye B.
  • dye A and dye B are respectively bonded to The first bonding group 1 and the second bonding group 2 of the swelling polymer, that is, different dyes can be stably connected to different bonding groups of the swelling polymer, and the dye molecules do not interfere with each other,
  • a very stable dispersion system can be formed, so that the stable dye dispersion system is not susceptible to high temperature, solvent, and ultraviolet light processes after being formulated into a color photoresist to cause performance damage.
  • the prepared dye dispersion system can effectively solve the problem of poor dye dispersion in the existing color filter, and the preparation method is simple and easy to implement.
  • the present invention also provides a color photoresist, which includes a resin, a reactive monomer, a photosensitizer, a solvent, and the above-mentioned dye dispersion system.
  • a color photoresist which includes a resin, a reactive monomer, a photosensitizer, a solvent, and the above-mentioned dye dispersion system.
  • the color photoresist of the present invention adopts the above-mentioned dye dispersion system, which can effectively solve the problem of poor dye dispersion in the existing color filter.
  • the present invention also provides a color filter, which is prepared by using the above-mentioned color photoresist.
  • the color filter of the present invention adopts the above-mentioned color photoresist, which can effectively solve the problem of poor dye dispersion in the existing color filter.
  • the dye dispersion system of the present invention includes a solvent, dyes and swelling polymers mixed in the solvent, the swelling polymer has a bonding group, and the swelling polymer swells in the solvent to adsorb
  • the dye is bonded to the dye through the bonding group, so that the dye molecule can be stably connected to the polymer bonding group to form a very stable dye dispersion system, so that the stable dye dispersion system is in the color light
  • it is not easy to be affected by high temperature, solvent, and ultraviolet light to cause performance damage can effectively solve the problem of poor dye dispersion in the existing color filter, and the preparation method is simple and easy.
  • the prepared dye dispersion system can effectively solve the problem of poor dye dispersion in the existing color filter, and the preparation method is simple and easy to implement.
  • the color photoresist of the present invention adopts the above-mentioned dye dispersion system, which can effectively solve the problem of poor dye dispersion in the existing color filter.
  • the color filter of the present invention adopts the above-mentioned color photoresist, which can effectively solve the problem of poor dye dispersion in the existing color filter.

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonlinear Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
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Abstract

本发明提供一种染料分散体系及其制备方法、彩色光刻胶、彩色滤光片。本发明的染料分散体系包括溶剂及混合于所述溶剂中的染料及溶胀聚合物，所述溶胀聚合物具有键合基团，所述溶胀聚合物在溶剂中溶胀而吸附染料并通过键合基团与染料键合，从而使染料分子可稳定地连接在聚合物的键合基团上，形成非常稳定地染料分散体系，使得该稳定地染料分散体系在配成彩色光刻胶后不易受高温、溶剂、紫外光的制程影响而导致性能被破坏，可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。

Description

染料分散体系及其制备方法、彩色光刻胶、彩色滤光片 技术领域
本发明涉及显示技术领域，尤其涉及一种染料分散体系及其制备方法、彩色光刻胶、彩色滤光片。
背景技术
薄膜晶体管液晶显示装置(Thin Film Transistor Liquid Crystal Display，TFT-LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。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，其包括液晶显示面板及背光模组(backlight module)。通常液晶显示面板由彩膜(Color Filter，CF)基板、TFT阵列基板、夹于彩膜基板与TFT阵列基板之间的液晶(Liquid Crystal，LC)及密封框胶(Sealant)组成。
CF基板是LCD用来实现彩色显示的主要器件，其基本构成通常包括：玻璃基板、黑色矩阵(Black Matrix，BM)、彩色滤光层等等。其中，彩色滤光层主要是通过由彩色光刻胶所形成的色阻单元达到彩色显示的效果，背光源发出的光经过液晶分子的调制入射到CF基板，通过CF基板上彩色滤光层的红色(R)色阻单元、绿色(G)色阻单元、以及蓝色(B)色阻单元的滤光作用，分别显示红、绿、蓝三种光线，不同颜色的色阻单元分别透射对应颜色波段的光，从而实现显示器的彩色显示。
因此，彩色光刻胶是液晶显示器中的直接材料之一，而彩色光刻胶为了能显示目标色彩，通常需要加入两种及以上的颜料或染料。但在液晶显示器的制作工艺中，彩色光刻胶会经过多次的高温，紫外光照和各类溶剂的浸泡等制程，这就对彩色光刻胶的信赖性要求很高，其中彩色光刻胶信赖性的关键就在于颜料或者染料的分散稳定性。
为了使液晶显示器达到更高的品质需求，如高透过率、高色饱和度等，相较于颜料的大分子结构，彩色光刻胶中具有显著优势的单分子染料使用比例也是越来越高；彩色光刻胶逐渐由以前的全颜料体系转变为染料和颜料的混合体系，以及全染料体系。现有颜料的分散通常是颜料外接诱导剂和大分子树脂，通过树脂立体障碍使颜料分子能独立均匀分散，形成稳定分散的状态。然而由于染料的单分子结构，传统的外接诱导剂和树脂的难度显著增大，因此分散稳定性不佳。配成彩色光刻胶后在制作液晶显示器的工艺过程中经常会因其分散稳定性不佳而存在各种问题，如溶剂浸泡时 会溶出，高温或紫外光照后会分散结构破坏而聚集或分解等。当彩色光刻胶配方中存在两种或以上染料时，此问题更加严重。
发明内容
本发明的目的在于提供一种染料分散体系，可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。
本发明的目的还在于提供一种染料分散体系的制备方法，所制备的染料分散体系可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。
本发明的目的又在于提供一种彩色光刻胶，采用上述染料分散体系，可以有效解决现有彩色滤光片中染料分散性不佳的问题。
本发明的目的又在于提供一种彩色滤光片，采用上述彩色光刻胶，可以有效解决现有彩色滤光片中染料分散性不佳的问题。
为实现上述目的，本发明提供了一种染料分散体系，包括溶剂及混合于所述溶剂中的染料及溶胀聚合物；
所述溶胀聚合物具有键合基团；
所述溶胀聚合物在溶剂中溶胀，从而吸附染料并通过键合基团与染料键合。
所述溶胀聚合物具有至少两种键合基团。
所述溶胀聚合物具有两种键合基团，分别为金刚烷基团和磺化杯[4]芳香烃基团。
所述溶胀聚合物为聚丙烯酰胺类聚合物。
本发明还提供一种如上所述的染料分散体系的制作方法，包括如下步骤：
步骤S1、提供染料、溶剂，将染料混合于溶剂中，形成混合均匀的染料溶液；
步骤S2、提供溶胀聚合物，将所述溶胀聚合物加入所述染料溶液中，通过搅拌，使得所述溶胀聚合物在溶剂中溶胀，从而吸附染料并通过键合基团与染料键合，得到染料分散体系。
所述溶胀聚合物的制备方法为：将丙烯酰胺、1-金刚烷基丙烯酰胺、4-烯丙氧基磺化杯[4]芳香烃、亚甲基双丙烯酰胺和催化剂混合在二甲基亚砜中，并在紫外光照下发生聚合反应，再用二甲基亚砜和水进行多次冲洗，得到所述溶胀聚合物。
所述催化剂为羟基环己基苯酮。
所述溶胀聚合物的制备方法中，将丙烯酰胺、1-金刚烷基丙烯酰胺、4-烯丙氧基磺化杯[4]芳香烃、亚甲基双丙烯酰胺和催化剂按50-20:3-5:1-3:0.5-1.5:0.5-1.5的摩尔比混合在二甲基亚砜中。
本发明还提供一种彩色光刻胶，包括如上所述的染料分散体系。
本发明还提供一种彩色滤光片，采用如上所述的彩色光刻胶制备得到。
本发明的有益效果：本发明的染料分散体系，包括溶剂及混合于所述溶剂中的染料及溶胀聚合物，所述溶胀聚合物具有键合基团，所述溶胀聚合物在溶剂中溶胀而吸附染料并通过键合基团与染料键合，从而使染料分子可稳定地连接在聚合物的键合基团上，形成非常稳定地染料分散体系，使得该稳定地染料分散体系在配成彩色光刻胶后不易受高温、溶剂、紫外光的制程影响而导致性能被破坏，可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。本发明的染料分散体系的制备方法，所制备的染料分散体系可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。本发明的彩色光刻胶，采用上述染料分散体系，可以有效解决现有彩色滤光片中染料分散性不佳的问题。本发明的彩色滤光片，采用上述彩色光刻胶，可以有效解决现有彩色滤光片中染料分散性不佳的问题。
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。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其他有益效果显而易见。
附图中，
图1为本发明的染料分散体系中溶胀聚合物的示意图；
图2为本发明的染料分散体系的制备方法的示意图。
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进行详细描述。
本发明首先提供一种染料分散体系，包括溶剂及混合于所述溶剂中的至少一种染料及溶胀聚合物。
所述溶胀聚合物具有键合基团；所述溶胀聚合物在溶剂中溶胀，从而吸附染料并通过键合基团与染料键合。
具体地，所述溶胀聚合物具有至少两种键合基团，使不同的染料分子可稳定连接在溶胀聚合物的不同键合基团上，不同染料分子之间互不干扰，从而可以形成非常稳定地染料分散体系。
具体地，在本实施例中，如图1所示，所述溶胀聚合物具有两种键合基团，分别为金刚烷基团的第一键合基团1和为磺化杯[4]芳香烃基团的第二键合基团2，
具体地，所述溶胀聚合物为聚丙烯酰胺类聚合物。
具体地，所述溶胀聚合物可由如下方法制备得到：将反应单体丙烯酰胺、1-金刚烷基丙烯酰胺、4-烯丙氧基磺化杯[4]芳香烃、亚甲基双丙烯酰胺和催化剂按30:4:2:1:1的摩尔比混合在二甲基亚砜(DMSO)中，并在紫外光照下发生聚合反应合成所需溶胀聚合物，再用二甲基亚砜和水进行多次冲洗去除未反应的反应单体，得到所述溶胀聚合物。其中，1-金刚烷基丙烯酰胺和4-烯丙氧基磺化杯[4]芳香烃的化学结构式分别如下式1和式2所示：
Figure PCTCN2019104170-appb-000001
具体地，所述催化剂为羟基环己基苯酮。
本发明的染料分散体系，包括溶剂及混合于所述溶剂中的染料及溶胀聚合物，所述溶胀聚合物具有键合基团，所述溶胀聚合物在溶剂中溶胀而吸附染料并通过键合基团与染料键合，从而使染料分子可稳定地连接在聚合物的键合基团上，形成非常稳定地染料分散体系，使得该稳定地染料分散体系在配成彩色光刻胶后不易受高温、溶剂、紫外光的制程影响而导致性能被破坏，进而可以有效解决现有彩色滤光片中染料分散性不佳的问题。
如图2所示，本发明还提供一种如上所述的染料分散体系的制作方法，包括如下步骤：
步骤S1、提供所述染料、溶剂，将染料混合于溶剂中，形成混合均匀的染料溶液。
具体地，在该步骤S1中，所述染料与溶剂混合后不可发生结晶或凝集 现象；所提供的染料可为一种或多种，所提供的溶剂可为一种或多种；所述染料与溶剂的混合比例不做限定，根据实际调配效果可进行调整。
步骤S2、提供溶胀聚合物，将所述溶胀聚合物加入所述染料溶液中，通过充分混合搅拌，使得所述溶胀聚合物在溶剂中充分溶胀，从而吸附染料并通过键合基团与染料键合，得到稳定地染料分散体系。
具体地，在本实施例中，所述步骤S1提供的染料为两种，分别为染料A和染料B，如图2所示，在所述步骤S2中，染料A和染料B分别键合在所述溶胀聚合物的第一键合基团1和第二键合基团2上，即不同的染料可稳定连接在溶胀聚合物的不同键合基团上，染料分子之间互不干扰，从而可以形成非常稳定地分散体系，使得此稳定染料分散体系在配成彩色光刻胶后不易受高温、溶剂、紫外光的制程影响而导致性能被破坏。
本发明的染料分散体系的制备方法，所制备的染料分散体系可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。
基于上述的染料分散体系，本发明还提供一种彩色光刻胶，包括树脂、反应性单体、感光剂、溶剂及如上所述的染料分散体系。其中，所述染料分散体系的具体技术特征与上述实施例相同，在此不再赘述。
本发明的彩色光刻胶，采用上述染料分散体系，可以有效解决现有彩色滤光片中染料分散性不佳的问题。
本发明还提供一种彩色滤光片，采用如上所述的彩色光刻胶制备得到。
本发明的彩色滤光片，采用上述彩色光刻胶，可以有效解决现有彩色滤光片中染料分散性不佳的问题。
综上所述，本发明的染料分散体系，包括溶剂及混合于所述溶剂中的染料及溶胀聚合物，所述溶胀聚合物具有键合基团，所述溶胀聚合物在溶剂中溶胀而吸附染料并通过键合基团与染料键合，从而使染料分子可稳定地连接在聚合物的键合基团上，形成非常稳定地染料分散体系，使得该稳定地染料分散体系在配成彩色光刻胶后不易受高温、溶剂、紫外光的制程影响而导致性能被破坏，可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。本发明的染料分散体系的制备方法，所制备的染料分散体系可以有效解决现有彩色滤光片中染料分散性不佳的问题，且制备方法简单易行。本发明的彩色光刻胶，采用上述染料分散体系，可以有效解决现有彩色滤光片中染料分散性不佳的问题。本发明的彩色滤光片，采用上述彩色光刻胶，可以有效解决现有彩色滤光片中染料分散性不佳的问题。
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 (12)

  1. 一种染料分散体系，包括溶剂及混合于所述溶剂中的染料及溶胀聚合物；
    所述溶胀聚合物具有键合基团；
    所述溶胀聚合物在溶剂中溶胀，从而吸附染料并通过键合基团与染料键合。
  2. 如权利要求1所述的染料分散体系，其中，所述溶胀聚合物具有至少两种键合基团。
  3. 如权利要求2所述的染料分散体系，其中，所述溶胀聚合物具有两种键合基团，分别为金刚烷基团和磺化杯[4]芳香烃基团。
  4. 如权利要求1所述的染料分散体系，其中，所述溶胀聚合物为聚丙烯酰胺类聚合物。
  5. 一种染料分散体系的制作方法，
    所述染料分散体系包括溶剂及混合于所述溶剂中的染料及溶胀聚合物；
    所述溶胀聚合物具有键合基团；
    所述溶胀聚合物在溶剂中溶胀，从而吸附染料并通过键合基团与染料键合；所述染料分散体系的制作方法包括如下步骤：
    步骤S1、提供染料、溶剂，将染料混合于溶剂中，形成混合均匀的染料溶液；
    步骤S2、提供溶胀聚合物，将所述溶胀聚合物加入所述染料溶液中，通过搅拌，使得所述溶胀聚合物在溶剂中溶胀，从而吸附染料并通过键合基团与染料键合，得到染料分散体系。
  6. 如权利要求5所述的染料分散体系的制作方法，其中，所述溶胀聚合物的制备方法为：将丙烯酰胺、1-金刚烷基丙烯酰胺、4-烯丙氧基磺化杯[4]芳香烃、亚甲基双丙烯酰胺和催化剂混合在二甲基亚砜中，并在紫外光照下发生聚合反应，再用二甲基亚砜和水进行多次冲洗，得到所述溶胀聚合物。
  7. 如权利要求6所述的染料分散体系的制作方法，其中，所述催化剂为羟基环己基苯酮。
  8. 如权利要求6所述的染料分散体系的制作方法，其中，所述溶胀聚合物的制备方法中，将丙烯酰胺、1-金刚烷基丙烯酰胺、4-烯丙氧基磺化杯[4]芳香烃、亚甲基双丙烯酰胺和催化剂混合在二甲基亚砜按 50-20:3-5:1-3:0.5-1.5:0.5-1.5的摩尔比混合在二甲基亚砜中。
  9. 一种彩色滤光片，采用彩色光刻胶制备得到；
    所述彩色光刻胶包括染料分散体系；
    所述染料分散体系包括溶剂及混合于所述溶剂中的染料及溶胀聚合物；
    所述溶胀聚合物具有键合基团；
    所述溶胀聚合物在溶剂中溶胀，从而吸附染料并通过键合基团与染料键合。
  10. 如权利要求9所述的彩色滤光片，其中，所述溶胀聚合物具有至少两种键合基团。
  11. 如权利要求10所述的彩色滤光片，其中，所述溶胀聚合物具有两种键合基团，分别为金刚烷基团和磺化杯[4]芳香烃基团。
  12. 如权利要求9所述的彩色滤光片，其中，所述溶胀聚合物为聚丙烯酰胺类聚合物。
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