JP2017138561A - Green pigment dispersion for color filter - Google Patents

Green pigment dispersion for color filter Download PDF

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JP2017138561A
JP2017138561A JP2016021259A JP2016021259A JP2017138561A JP 2017138561 A JP2017138561 A JP 2017138561A JP 2016021259 A JP2016021259 A JP 2016021259A JP 2016021259 A JP2016021259 A JP 2016021259A JP 2017138561 A JP2017138561 A JP 2017138561A
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pigment
green
color filter
pigment dispersion
yellow
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JP6645859B2 (en
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林　明
Akira Hayashi
明 林
平井　淳一
Junichi Hirai
淳一 平井
俊輔 杉江
shunsuke Sugie
俊輔 杉江
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Sakata Inx Corp
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Sakata Inx Corp
Sakata Corp
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Priority to CN201611167349.XA priority patent/CN107043555B/en
Priority to KR1020160174229A priority patent/KR102664035B1/en
Priority to TW105142837A priority patent/TWI710605B/en
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    • 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
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • 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
    • 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
    • G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
    • G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
    • 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
    • G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
    • G03F7/105—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having substances, e.g. indicators, for forming visible images

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Optical Filters (AREA)
  • Materials For Photolithography (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a green pigment dispersion for color filters having excellent color characteristics in view of problems in the conventional art.SOLUTION: A green pigment dispersion for color filters comprises a pigment, a pigment dispersant and a solvent. The green pigment dispersion comprises, as the pigment, C.I.pigment green 59.SELECTED DRAWING: None

Description

本発明は、主に透過型または反射型カラー液晶ディスプレイに使用される光学的カラーフィルターの製造に使用される緑色顔料分散物及び緑色着色組成物に関する。   The present invention relates to a green pigment dispersion and a green coloring composition used for the production of an optical color filter mainly used in a transmissive or reflective color liquid crystal display.

カラーフィルターは、ガラス等の透明な基板の表面に２種以上の異なる色相の微細な帯（ストライプ）を平行に配置したもの、或は微細な画素を縦横一定の配列に配置したものからなっている。画素サイズは、数１０〜数１００μｍという微細な形状であり、しかも色相毎に所定の順序で整然と配列される。このため、カラーフィルターの製造方法については、種々の方法が提案されている。   A color filter consists of two or more fine bands (stripes) of different hues arranged in parallel on the surface of a transparent substrate such as glass, or one in which fine pixels are arranged in a certain vertical and horizontal arrangement. Yes. The pixel size is a fine shape of several tens to several hundreds of micrometers, and is arranged regularly in a predetermined order for each hue. For this reason, various methods have been proposed for producing color filters.

カラーフィルターは高い透明性が必要とされるため、従来、ゼラチン、カゼイン等の染色可能な天然高分子の水溶液に、重クロム酸等の感光剤を加えて感光化し、フォトリソグラフィー法を用いて画素パターンを形成し、上記画素パターンを所望の色に染色して色パターンを得る工程を３回繰り返して３色の透明着色微細パターンを形成する、いわゆる染色法を用いることにより製造されていた。   Since color filters need to be highly transparent, conventionally, a photosensitizer such as dichromic acid is added to an aqueous solution of a natural polymer that can be dyed such as gelatin or casein to sensitize the pixel, and a pixel is formed using a photolithography method. It has been manufactured by using a so-called dyeing method in which a pattern is formed, and the process of obtaining a color pattern by dyeing the pixel pattern into a desired color is repeated three times to form a transparent colored fine pattern of three colors.

近年、カラー液晶ディスプレイパネルの大型化、用途の多様化に伴い、耐熱性、耐光性といった信頼性向上の要求がなされるようになってきた。   In recent years, with an increase in the size of color liquid crystal display panels and diversification of applications, there has been a demand for improved reliability such as heat resistance and light resistance.

この要求に対し、カラーフィルター形成用の色材として、色特性に優れるものの耐熱性や耐光性に限界がある染料のかわりに、耐光性及び耐熱性に優れる有機顔料が用いられるようになった。   In response to this requirement, an organic pigment having excellent light resistance and heat resistance has been used as a color material for forming a color filter, instead of a dye having excellent color characteristics but limited heat resistance and light resistance.

有機顔料を分散した感放射線性着色樹脂組成物を用いてカラーフィルターを製造するに当たっては、透明基板上あるいは予め所望のパターンの遮光層を形成した基板上に、有機顔料を分散した感放射線性着色樹脂組成物を塗布、乾燥した後、乾燥した塗膜を所望のパターンに露光、現像することにより、各色の画素を得ている。   In producing a color filter using a radiation-sensitive colored resin composition in which an organic pigment is dispersed, a radiation-sensitive coloring in which an organic pigment is dispersed on a transparent substrate or a substrate on which a light-shielding layer having a desired pattern is formed in advance. After applying and drying the resin composition, each color pixel is obtained by exposing and developing the dried coating film in a desired pattern.

しかし、有機顔料を分散した感放射線性着色樹脂組成物を用いる場合、例えば、透明基板上にブルー、グリーン、レッドの光の３原色を配列してなるカラーフィルターにおいては、一般に、単一の顔料だけでは、それぞれのカラーフィルターとしての分光スペクトルを得るのは困難であり、顔料を２種以上用いて調製することが必要とされる。   However, when using a radiation-sensitive colored resin composition in which an organic pigment is dispersed, for example, in a color filter in which three primary colors of blue, green, and red light are arranged on a transparent substrate, a single pigment is generally used. Alone, it is difficult to obtain a spectral spectrum as each color filter, and it is necessary to prepare using two or more pigments.

緑色カラーフィルターについては、特許文献１〜３等に記載されているように一般的に、Ｃ．Ｉ．ピグメントグリーン７、３６、５８等の緑色顔料に、Ｃ．Ｉ．ピグメントイエロー１３９、１７、１２８、１５０、１５５、１８５等のイエロー顔料を加えスペクトル及び明度を調整している。   As for the green color filter, as described in Patent Documents 1 to 3, generally, C.I. I. Pigment Green 7, 36, 58 and other green pigments, C.I. I. Pigment yellow 139, 17, 128, 150, 155, 185 and the like are added to adjust the spectrum and brightness.

しかしながら、透過率、すなわち明度を高め、また色純度を上げるなど、カラーフィルターに対する色特性の要求が高まるなか、これらの顔料種の組合せだけではカラーフィルターとしての色特性の向上に限界があった。   However, the demand for color characteristics for color filters, such as increasing transmittance, that is, lightness and color purity, has been increasing, and there has been a limit to the improvement of color characteristics as a color filter only by combining these pigment types.

色特性に優れる緑色顔料としてはＣ．Ｉ.ピグメントグリーン５９があるが、顔料分散液の作成が技術的に困難であるため、これまで実用化されていない。   Green pigments having excellent color characteristics include C.I. I. Pigment Green 59 is available, but it has not been put into practical use until now because it is technically difficult to prepare a pigment dispersion.

特開平１０−２３７３２５号公報Japanese Patent Laid-Open No. 10-237325 特開平１１−１４８２５号公報Japanese Patent Laid-Open No. 11-14825 特開２０１４−２３１４号公報JP 2014-2314 A

本発明の課題は、前記従来技術の課題に鑑み、色特性に優れるカラーフィルター用緑色顔料分散物を提供することにある。   The subject of this invention is providing the green pigment dispersion for color filters which is excellent in a color characteristic in view of the subject of the said prior art.

本発明者らは、かかる課題を解決するために、緑色顔料、必要により黄色顔料との組み合わせ、ならびにこれらを微細に分散させる顔料分散剤について種々検討を行った結果、緑の主顔料、調色顔料としての黄色顔料、顔料を微細に分散させる顔料分散剤として特定のものを組合わせることにより、上記の課題を解決できることを見出し、本発明を完成するに至った。   In order to solve such problems, the present inventors have conducted various studies on a green pigment, a combination with a yellow pigment as necessary, and a pigment dispersant that finely disperses these pigments. It has been found that the above problems can be solved by combining a yellow pigment as a pigment and a specific pigment dispersant for finely dispersing the pigment, and the present invention has been completed.

すなわち、本発明は、（１）顔料、顔料分散剤および溶剤を含むカラーフィルター用緑色顔料分散物において、顔料としてＣ．Ｉ．ピグメントグリーン５９を含むカラーフィルター用緑色顔料分散物に関する。   That is, the present invention relates to (1) a green pigment dispersion for a color filter containing a pigment, a pigment dispersant and a solvent. I. The present invention relates to a green pigment dispersion for a color filter containing CI Pigment Green 59.

また、本発明は、（２）前記顔料分散剤が３級アミノ基及び／又は４級アンモニウム基を有し、３ｍｇＫＯＨ／ｇ以上のアミン価を有し、ブロック型構造であるアクリル系重合体を含む前記（１）項記載のカラーフィルター用緑色顔料分散物に関する。   Further, the present invention provides (2) an acrylic polymer having a block type structure, wherein the pigment dispersant has a tertiary amino group and / or a quaternary ammonium group, has an amine value of 3 mgKOH / g or more. It contains the green pigment dispersion for color filters of the said (1) description containing.

また、本発明は、（３）前記顔料がＣ．Ｉ．ピグメントイエロー１８５を含む前記（１）項または（２）項に記載のカラーフィルター用緑色顔料分散物に関する。   In the present invention, (3) the pigment may be C.I. I. The present invention relates to the green pigment dispersion for color filters described in (1) or (2) above, which contains CI Pigment Yellow 185

また、本発明は、（４）前記緑色顔料と前記黄色顔料との質量比率が、９５／５〜４０／６０である前記（１）項〜（３）項のいずれかに記載のカラーフィルター用緑色顔料分散物に関する。   In addition, the present invention provides (4) the color filter according to any one of (1) to (3), wherein a mass ratio of the green pigment to the yellow pigment is 95/5 to 40/60. It relates to a green pigment dispersion.

また、本発明は、（５）前記顔料が微粒子化処理された顔料である前記（１）項〜（４）項のいずれかに記載のカラーフィルター用緑色顔料分散物に関する。   The present invention also relates to (5) the green pigment dispersion for a color filter according to any one of (1) to (4), wherein the pigment is a finely divided pigment.

また、本発明は、（６）さらに、Ｃ．Ｉ．ピグメントイエロー１８５のスルホン化物を含む前記（１）項〜（５）項のいずれかに記載のカラーフィルター用緑色顔料分散物に関する。   The present invention also provides (6) C.I. I. It is related with the green pigment dispersion for color filters in any one of said (1) -item (5) containing the sulfonated thing of pigment yellow 185.

また、本発明は、（７）前記（１）項〜（６）項に記載のカラーフィルター用緑色顔料分散物により形成された塗布層を有するカラーフィルターに関する。   The present invention also relates to (7) a color filter having a coating layer formed from the green pigment dispersion for color filter described in the above items (1) to (6).

なお、本発明においてアミン価とは、樹脂の固形分１ｇを中和するのに必要な塩酸量に対して当量となる水酸化カリウムの質量（ｍｇ）を表し、ＪＩＳ Ｋ ７２３７に記載の方法に準ずる方法により測定される値である。   In the present invention, the amine value means the mass (mg) of potassium hydroxide equivalent to the amount of hydrochloric acid necessary for neutralizing 1 g of the solid content of the resin, and the method described in JIS K 7237 is used. It is a value measured by a similar method.

本発明においては、顔料として緑色顔料を用い、好ましくは黄色顔料を併用する。   In the present invention, a green pigment is used as the pigment, and a yellow pigment is preferably used in combination.

前記の緑色顔料としては、Ｃ．Ｉ．ピグメントグリーン５９（カラーインデックス名）が必須成分として使用される。Ｃ．Ｉ．ピグメントグリーン５９を使用することによって、得られたカラーフィルターの緑色着色組成物からなる層が薄く、明度が高く、かつバランスに優れた発色とすることができる。本発明における緑色顔料及び／又は黄色顔料としては、Ｃ．Ｉ．ピグメントグリーン５９の光透過率を実質的に低下しない範囲において、他の緑色顔料も併用できる。
そして本発明のカラーフィルター用緑色着色組成物により得られた塗膜は、厚さが２．５５μｍにおいて、ｘが０．２００〜０．２４０、好ましくは０．２１０〜０．２３０、さらに好ましくは０．２１５〜０．２２８であり、ｙが０．６５０〜０．７０５、好ましくは０．６６０〜０．６９０、さらに好ましくは０．６６５〜０．６７５、Ｙが３７．０〜４８．０、好ましくは３８．０〜４８．０である。 Examples of the green pigment include C.I. I. Pigment Green 59 (color index name) is used as an essential component. C. I. By using CI Pigment Green 59, it is possible to obtain a color that has a thin layer of a green coloring composition of the obtained color filter, high brightness, and excellent balance. Examples of the green pigment and / or yellow pigment in the present invention include C.I. I. Other green pigments can be used in combination as long as the light transmittance of the pigment green 59 is not substantially lowered.
And the coating film obtained with the green coloring composition for color filters of the present invention has a thickness of 2.55 μm, x is 0.200 to 0.240, preferably 0.210 to 0.230, more preferably 0.215 to 0.228, y is 0.650 to 0.705, preferably 0.660 to 0.690, more preferably 0.665 to 0.675, and Y is 37.0 to 48.0. , Preferably 38.0 to 48.0.

黄色顔料としては、Ｃ．Ｉ．ピグメントイエロー１８５（カラーインデックス名）等が使用される。中でもＣ．Ｉ．ピグメントイエロー１８５が本発明の目的を達成する上で好ましく、その他の黄色顔料としては、Ｃ．I．ピグメントイエロー１８５の光透過率を実質的に低下しない範囲において、他の黄色顔料を併用してもよい。   Examples of yellow pigments include C.I. I. Pigment Yellow 185 (color index name) or the like is used. Among them, C.I. I. Pigment Yellow 185 is preferable for achieving the object of the present invention, and other yellow pigments include C.I. I. Other yellow pigments may be used in combination as long as the light transmittance of Pigment Yellow 185 is not substantially lowered.

本発明において、緑色顔料と黄色顔料の配合割合は、重量比で緑色顔料／黄色顔料が９５／５〜４０／６０とされることが好ましい。   In the present invention, the mixing ratio of the green pigment and the yellow pigment is preferably such that the green pigment / yellow pigment is 95/5 to 40/60 by weight.

本発明の顔料は、高い明度や高いコントラストを得るために微粒子化処理した顔料を使用することが好ましい。微粒子化処理を行うことにより、顔料の一次粒子径を更に微細にかつ均一にすることができる。
上記微粒子化処理としては、例えば、未処理着色顔料、水溶性の無機塩（塩化ナトリウム、塩化バリウム、塩化カリウム等で好ましくは塩化ナトリウムで、使用する水溶性の無機塩の平均粒子径としては５０μｍ以下のものが好ましい）、及び、上記水溶性の無機塩を実質的に溶解しない水溶性分散媒体（アルコキシアルコール類、グリコール類、エーテル類等）を含む混合物を、ニーダー、ロールミル、ボールミル、アトライター、サンドミル、特開２００６−１９２３８５号公報に記載のプラネタリーミキサーである井上製作所（株）社製のトリミックス（商標名）、連続式一軸混練機である浅田鉄工（株）社製のミラクルＫＣＫ等の混練装置で混練した後、上記水溶性の無機塩及び上記水溶性分散媒体を除去するソルトミリングを行い、微粒子化処理を行うことが好ましい。 As the pigment of the present invention, it is preferable to use a finely divided pigment in order to obtain high brightness and high contrast. By performing the fine particle treatment, the primary particle diameter of the pigment can be made finer and uniform.
Examples of the fine particle treatment include, for example, untreated color pigments, water-soluble inorganic salts (sodium chloride, barium chloride, potassium chloride, etc., preferably sodium chloride, and the average particle diameter of the water-soluble inorganic salt used is 50 μm. And a mixture containing a water-soluble dispersion medium (alkoxy alcohols, glycols, ethers, etc.) that does not substantially dissolve the water-soluble inorganic salt is used as a kneader, roll mill, ball mill, attritor , Sandmill, Trimix (trade name) manufactured by Inoue Seisakusho Co., Ltd., which is a planetary mixer described in JP-A-2006-192385, and Miracle KCK manufactured by Asada Tekko Co., Ltd., which is a continuous uniaxial kneader. After kneading with a kneading apparatus such as the above, salt milling is performed to remove the water-soluble inorganic salt and the water-soluble dispersion medium. It is preferred to perform the atomization treatment.

本発明においては、Ｃ．Ｉ．ピグメントイエロー１８５のスルホン化物を併用する事が好ましい。具体的には、黄色顔料の微粒子化処理においてＣ．Ｉ．ピグメントイエロー１８５のスルホン化物を併用する方法や、単独で微粒子化処理された黄色顔料を分散する工程においてＣ．Ｉ．ピグメントイエロー１８５のスルホン化物を併用する方法などが挙げられる。
Ｃ．Ｉ．ピグメントイエロー１８５のスルホン化物の使用量は、黄色顔料１００質量部に対して０．５〜３０質量部、好ましくは３〜１５質量部である。 In the present invention, C.I. I. It is preferable to use a sulfonated product of Pigment Yellow 185 in combination. Specifically, C.I. I. C. in a method using a sulfonated product of Pigment Yellow 185 or a step of dispersing a yellow pigment which has been pulverized alone. I. And a method using a sulfonated product of CI Pigment Yellow 185.
C. I. The used amount of the sulfonated product of Pigment Yellow 185 is 0.5 to 30 parts by mass, preferably 3 to 15 parts by mass with respect to 100 parts by mass of the yellow pigment.

本発明に用いるカラーフィルター用緑色顔料分散物に使用する顔料分散剤としては、３級アミノ基及び／又は４級アンモニウム基を有し、３ｍｇＫＯＨ／ｇ以上のアミン価を有し、ブロック型構造であるアクリル系重合体が必須成分として使用される。
このような顔料分散剤としては、ＤＩＳＰＥＲＢＹＫ−２００１、ＤＩＳＰＥＲＢＹＫ−２０００、ＢＹＫ−ＬＰＮ６９１９、ＢＹＫ−ＬＰＮ２１１１６、ＢＹＫ−ＬＰＮ２２１０２（いずれもビックケミー社製）等が例示でき、これらは単独でまたは併用して使用できる。 The pigment dispersant used in the green pigment dispersion for a color filter used in the present invention has a tertiary amino group and / or a quaternary ammonium group, has an amine value of 3 mgKOH / g or more, and has a block structure. A certain acrylic polymer is used as an essential component.
Examples of such pigment dispersants include DISPERBYK-2001, DISPERBYK-2000, BYK-LPN6919, BYK-LPN21116, BYK-LPN22102 (all manufactured by BYK Chemie) and the like, and these can be used alone or in combination. .

本発明の顔料組成物において、前記顔料分散剤の使用量は、顔料１００質量部に対して１〜１００質量部であることが好ましく、より好ましくは１〜６０質量部である。前記顔料分散剤の含有量が１質量部より小さいと顔料分散効果が低下する場合があり、一方１００質量部を超える場合は、現像性が低下する等のおそれがある。   In the pigment composition of the present invention, the amount of the pigment dispersant used is preferably 1 to 100 parts by mass, more preferably 1 to 60 parts by mass with respect to 100 parts by mass of the pigment. When the content of the pigment dispersant is less than 1 part by mass, the pigment dispersion effect may be reduced. On the other hand, when the content exceeds 100 parts by mass, developability may be reduced.

また、前記顔料分散剤以外に、必要に応じ界面活性剤を併用することも可能である。このような界面活性剤としては、イオン性界面活性剤とノニオン性界面活性剤が挙げられ、イオン性界面活性剤としては、カチオン性界面活性剤、アニオン性界面活性剤および両性界面活性剤があげられる。カチオン性界面活性剤としては、脂肪族アミン類、第４級アンモニウム塩類、アルキルピリジウム塩類が例示できる。アニオン性界面活性剤としては、脂肪酸塩類、硫酸エステル類、スルホン酸塩類、リン酸エステル類等が例示できる。両性活性剤としては、アミノ酸塩類等が例示できる。ノニオン系界面活性剤としては、ポリオキシエチレンアルキルエーテル類、ポリオキシエチレンアルキルフェニルエーテル類、ポリオキシエチレンアルキルエステル類、ソルビタンアルキルエステル類、ポリオキシエチレンソルビタンアルキルエステル類等が例示できる。   In addition to the pigment dispersant, a surfactant may be used in combination as necessary. Examples of such surfactants include ionic surfactants and nonionic surfactants. Examples of ionic surfactants include cationic surfactants, anionic surfactants, and amphoteric surfactants. It is done. Examples of the cationic surfactant include aliphatic amines, quaternary ammonium salts, and alkylpyridium salts. Examples of the anionic surfactant include fatty acid salts, sulfate esters, sulfonate salts, and phosphate esters. Examples of amphoteric active agents include amino acid salts. Examples of nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, polyoxyethylene alkyl esters, sorbitan alkyl esters, polyoxyethylene sorbitan alkyl esters, and the like.

本発明に用いるカラーフィルター用緑色顔料分散物に使用する溶剤としては、顔料分散剤を溶解し、かつ、顔料を安定的に分散させることができる溶剤が好ましい。
このような溶剤の具体例としては、エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、プロピレングリコールモノメチルエーテル、プロピレングリコールモノエチルエーテル等の（ポリ）アルキレングリコールモノアルキルエーテル類、エチレングリコールモノメチルエーテルアセテート、エチレングリコールモノエチルエーテルアセテート、プロピレングリコールモノエチルエーテルアセテート、プロピレングリコールモノメチルエーテルアセテート等の（ポリ）アルキレングリコールモノアルキルエーテルアセテート類、ジエチレングリコールジエチルエーテル、ジエチレングリコールメチルエチルエーテル、テトラヒドロフラン等のエーテル類、メチルエチルケトン、メチルイソブチルケトン、シクロヘキサノン、２−ヘプタノン、３−ヘプタノン等のケトン類、２−ヒドロキシプロピオン酸メチル、２−ヒドロキシプロピオン酸エチル等の乳酸アルキルエステル類、２−ヒドロキシ−２−メチルプロピオン酸エチル、３−メチル−３−メトキシブチルプロピオネート、３−メトキシプロピオン酸メチル、３−メトキシプロピオン酸エチル、３−エトキシプロピオン酸メチル、３−エトキシプロピオン酸エチル、エトキシ酢酸エチル、ヒドロキシ酢酸エステル、酢酸エチル、酢酸ｎ−ブチル、酢酸イソブチル、プロピオン酸ｎ−ブチル、アセト酢酸メチル、ぎ酸ｎ−アミル、ピルビン酸エチル等のエステル類、トルエン、キシレン等の芳香族炭化水素類、Ｎ−メチルピロリドン、Ｎ，Ｎ−ジメチルホルムアミド、Ｎ，Ｎ−ジメチルアセトアミド等のアミド類を例示できる。これら溶剤は、単独で又は２種以上を混合して使用することができる。また、これら溶剤の使用量は、顔料分散物の全量に対して６０〜８０重量％の割合で使用することが好ましい。 As a solvent used for the green pigment dispersion for a color filter used in the present invention, a solvent capable of dissolving the pigment dispersant and stably dispersing the pigment is preferable.
Specific examples of such solvents include (poly) alkylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl ether, and propylene glycol monoethyl ether. (Poly) alkylene glycol monoalkyl ether acetates such as ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monomethyl ether acetate, diethylene glycol diethyl ether, diethylene glycol methyl ethyl ether, teto Ethers such as hydrofuran, ketones such as methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, 2-heptanone and 3-heptanone, alkyl lactates such as methyl 2-hydroxypropionate and ethyl 2-hydroxypropionate, 2-hydroxy- Ethyl 2-methylpropionate, 3-methyl-3-methoxybutylpropionate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl ethoxyacetate , Hydroxy acetate ester, ethyl acetate, n-butyl acetate, isobutyl acetate, n-butyl propionate, methyl acetoacetate, n-amyl formate, ethyl pyruvate, etc., aromatic hydrocarbons such as toluene, xylene, etc. N- methylpyrrolidone, N, N- dimethylformamide, N, amides such as N- dimethylacetamide can be exemplified. These solvents can be used alone or in admixture of two or more. Moreover, it is preferable to use the usage-amount of these solvents in the ratio of 60 to 80 weight% with respect to the whole quantity of a pigment dispersion.

本発明のカラーフィルター用緑色顔料組成物は、緑色顔料、黄色顔料、顔料分散剤、溶剤等を混合し、超音波分散機、ビーズミル、３本ロール、ボールミル、サンドミル、ホモジナイザー、ニーダー等を用いて混練し分散処理することにより得られる。   The green pigment composition for a color filter of the present invention is a mixture of a green pigment, a yellow pigment, a pigment dispersant, a solvent, etc., and an ultrasonic disperser, bead mill, three rolls, ball mill, sand mill, homogenizer, kneader, etc. It is obtained by kneading and dispersing.

前記の分散処理に際しては、顔料分散剤および／または溶剤は、その全量を分散処理時に顔料と共に用いてもよく、顔料分散剤の一部を分散処理後に加えてもよい。   In the dispersion treatment, the entire amount of the pigment dispersant and / or solvent may be used together with the pigment during the dispersion treatment, or a part of the pigment dispersant may be added after the dispersion treatment.

本発明のカラーフィルター用緑色顔料分散物は、通常、バインダー樹脂、光重合性不飽和結合を分子内に１個以上有する光重合性化合物および光重合開始剤、必要に応じ溶剤、その他の添加剤と混合して顔料分散レジスト組成物として、カラーフィルターの形成に使用される。その際の各種配合剤、調製法などは従来のものがとくに制限されず、使用できる。   The green pigment dispersion for a color filter of the present invention is usually composed of a binder resin, a photopolymerizable compound having one or more photopolymerizable unsaturated bonds in the molecule, a photopolymerization initiator, a solvent if necessary, and other additives. It is used for the formation of a color filter as a pigment-dispersed resist composition. Various compounding agents, preparation methods, etc. at that time are not particularly limited and can be used.

以下、実施例を挙げて本発明をより具体的に説明するが、本発明はこれら実施例に限定されるものではない。なお、特に断りのない限り、本実施例において「部」および「％」は「重量部」および「重量％」を表わす。
＜顔料＞
Ｄ１１５５（Ｃ．Ｉ．ピグメントイエロー１８５、商品名Ｐａｌｉｏｔｏｌ Ｙｅｌｌｏｗ Ｄ１１５５、ＢＡＳＦ社製）
６２６８ＥＣ（Ｃ．Ｉ．ピグメントイエロー１５０、商品名クロモファインイエロー６２６８ＥＣ、大日精化社製）
Ｌ０９６０ＨＤ（Ｃ．Ｉ．ピグメントイエロー１３８、商品名ＰａｌｉｏｔｏｌＹｅｌｌｏｗ Ｌ０９６０ＨＤ、ＢＡＳＦ社製）
Ｇｒｅｅｎ Ｓ（Ｃ．Ｉ．ピグメントグリーン７、商品名ファーストゲングリーン Ｓ、ＤＩＣ社製）
Ａ１１０（Ｃ．Ｉ．ピグメントグリーン５８、商品名ファーストゲングリーンＡ１１０、ＤＩＣ社製）
Ｃ１００（Ｃ．Ｉ．ピグメントグリーン５９、商品名ファーストゲングリーンＣ１００、ＤＩＣ社製）
＜顔料分散剤＞
ＢＹＫ−ＬＰＮ２１１１６（３級アミノ基及び４級アンモニウム基を有し、約２９ｍｇＫＯＨ／ｇのアミン価を有し、ブロック型構造であるアクリル系重合体、固形分４０％、ビックケミー社製）
＜バインダー樹脂＞
ＢｎＭＡ／ＭＡＡ共重合体（ベンジルメタクリレート／メタクリル酸共重合体、理論酸価１２０ｍｇＫＯＨ／ｇ、質量平均分子量２５，０００）
＜溶剤＞
ＰＧＭＥＡ（プロピレングリコールモノメチルエーテルアセテート）
＜光重合性化合物＞
ＤＰＨＡ（ジペンタエリスリトールヘキサアクリレート）
＜光重合開始剤＞
Ｉｒ３６９（２−ベンジル−（ジメチルアミノ）−１−（４−モルフォリノフェニル）−１−ブタノン、商品名イルガキュア３６９、ＢＡＳＦ社製） EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated more concretely, this invention is not limited to these Examples. Unless otherwise specified, “parts” and “%” in this example represent “parts by weight” and “% by weight”.
<Pigment>
D1155 (C.I. Pigment Yellow 185, trade name: Pariotol Yellow D1155, manufactured by BASF)
6268EC (CI Pigment Yellow 150, trade name Chromo Fine Yellow 6268EC, manufactured by Dainichi Seika Co., Ltd.)
L0960HD (CI Pigment Yellow 138, trade name Pariotol Yellow L0960HD, manufactured by BASF)
Green S (CI Pigment Green 7, trade name Fast Gen Green S, manufactured by DIC Corporation)
A110 (CI Pigment Green 58, trade name Fast Gen Green A110, manufactured by DIC Corporation)
C100 (CI Pigment Green 59, trade name Fast Gen Green C100, manufactured by DIC Corporation)
<Pigment dispersant>
BYK-LPN21116 (Acrylic polymer having a tertiary amino group and a quaternary ammonium group, an amine value of about 29 mg KOH / g, and a block type structure, solid content 40%, manufactured by BYK Chemie)
<Binder resin>
BnMA / MAA copolymer (benzyl methacrylate / methacrylic acid copolymer, theoretical acid value 120 mgKOH / g, mass average molecular weight 25,000)
<Solvent>
PGMEA (propylene glycol monomethyl ether acetate)
<Photopolymerizable compound>
DPHA (dipentaerythritol hexaacrylate)
<Photopolymerization initiator>
Ir369 (2-benzyl- (dimethylamino) -1- (4-morpholinophenyl) -1-butanone, trade name Irgacure 369, manufactured by BASF)

（Ｄ１１５５スルホン化物）
１００ｍｌ三角フラスコに濃硫酸を３０ｍｌ仕込み、マグネチックスターラーで撹拌しながらＤ１１５５を１０ｇ投入し、室温で３０分撹拌した。１Ｌビーカーに水５０ｇと氷５０ｇの混合物を入れ、上記反応物をこの氷水中に注ぎ、マグネチックスターラーで３０分撹拌した。これを減圧下で濾過・水洗し、得られた固体を乾燥させてＤ１１５５スルホン化物を１２ｇ得た。
（微粒子化Ｄ１１５５）
ニーダー（商品名：ＫＨＤ−２、井上製作所製）のタンクに、Ｄ１１５５を１００質量部、粒径２０μｍの塩化ナトリウム１０００質量部、ジエチレングリコール２４０質量部を投入し、７５℃で１０時間混練しソルトミリングを行った。次に得られた混練物１３００質量部を３リットルの温水に投入し、７０℃に加熱しながら１時間撹拌しスラリー状とした。ろ過、水洗を繰り返し塩化ナトリウム及びジエチレングリコールを除いた後、４０℃にて乾燥し、９５質量部の微粒子化Ｄ１１５５を得た。
（微粒子化Ｄ１１５５（スルホン化物含有））
ニーダー（商品名：ＫＨＤ−２、井上製作所製）のタンクに、Ｄ１１５５を１００質量部、粒径２０μｍの塩化ナトリウム１０００質量部、Ｄ１１５５スルホン化物７質量部、ジエチレングリコール２４０質量部を投入し、７５℃で１０時間混練しソルトミリングを行った。次に得られた混練物１３００質量部を３リットルの温水に投入し、７０℃に加熱しながら１時間撹拌しスラリー状とした。ろ過、水洗を繰り返し塩化ナトリウム及びジエチレングリコールを除いた後、４０℃にて乾燥し、９８質量部の微粒子化Ｄ１１５５（スルホン化物含有）を得た。 (D1155 sulfonated product)
A 100 ml Erlenmeyer flask was charged with 30 ml of concentrated sulfuric acid, 10 g of D1155 was added while stirring with a magnetic stirrer, and the mixture was stirred at room temperature for 30 minutes. A mixture of 50 g of water and 50 g of ice was placed in a 1 L beaker, and the reaction product was poured into this ice water and stirred for 30 minutes with a magnetic stirrer. This was filtered and washed under reduced pressure, and the obtained solid was dried to obtain 12 g of D1155 sulfonated product.
(Micronized D1155)
In a tank of a kneader (trade name: KHD-2, manufactured by Inoue Seisakusho), 100 parts by mass of D1155, 1000 parts by mass of sodium chloride having a particle size of 20 μm, and 240 parts by mass of diethylene glycol were added, and kneaded at 75 ° C. for 10 hours to perform salt milling. Went. Next, 1300 parts by mass of the obtained kneaded material was put into 3 liters of warm water and stirred for 1 hour while heating to 70 ° C. to form a slurry. Filtration and washing were repeated to remove sodium chloride and diethylene glycol, followed by drying at 40 ° C. to obtain 95 parts by mass of finely divided D1155.
(Micronized D1155 (containing sulfonated product))
A tank of a kneader (trade name: KHD-2, manufactured by Inoue Seisakusho) is charged with 100 parts by mass of D1155, 1000 parts by mass of sodium chloride having a particle size of 20 μm, 7 parts by mass of D1155 sulfonated material, and 240 parts by mass of diethylene glycol. And kneading for 10 hours to perform salt milling. Next, 1300 parts by mass of the obtained kneaded material was put into 3 liters of warm water and stirred for 1 hour while heating to 70 ° C. to form a slurry. Filtration and washing were repeated to remove sodium chloride and diethylene glycol, followed by drying at 40 ° C. to obtain 98 parts by mass of finely divided D1155 (containing sulfonated product).

＜カラーフィルター用顔料分散組成物＞
上記微粒子化顔料、又は微粒子化していない各種顔料、顔料分散剤、Ｄ１１５５スルホン化物、バインダー樹脂（ＢｎＭＡ／ＭＡＡ共重合体）、有機溶剤（ＰＧＭＥＡ）を表１の組成となるように混合し、０．２ｍｍΦのジルコニアビーズを用いてペイントコンディショナーで６時間混練し、カラーフィルター用顔料分散組成物１〜８を得た。 <Pigment dispersion composition for color filter>
The above-mentioned finely divided pigment, or various pigments that are not finely divided, a pigment dispersant, D1155 sulfonated product, a binder resin (BnMA / MAA copolymer), and an organic solvent (PGMEA) are mixed so as to have the composition shown in Table 1. The pigment dispersion compositions 1 to 8 for color filters were obtained by kneading for 6 hours with a paint conditioner using 2 mmφ zirconia beads.

Figure 2017138561
Figure 2017138561

＜カラーフィルター用顔料分散レジスト組成物＞
次いで、カラーフィルター用顔料分散組成物１〜８と、ＢｎＭＡ／ＭＡＡ共重合体、ＤＰＨＡ、Ｉｒ３６９、ＰＧＭＥＡを、表２の組成になるように高速撹拌機を用いて均一に混合した後、孔径３μｍのメンブランフィルターでろ過し、カラーフィルター用顔料分散レジスト組成物１〜８を得た。 <Pigment-dispersed resist composition for color filter>
Next, the color filter pigment dispersion compositions 1 to 8, BnMA / MAA copolymer, DPHA, Ir369, and PGMEA were mixed uniformly using a high-speed stirrer so as to have the composition shown in Table 2, and then the pore diameter was 3 μm. The pigment dispersion resist compositions 1-8 for color filters were obtained by filtering with a membrane filter.

Figure 2017138561
Figure 2017138561

＜実施例１〜２及び比較例１〜１０のカラーフィルター用緑色顔料分散レジスト組成物＞
表３の顔料割合となるようにカラーフィルター用顔料分散レジスト組成物１〜８から選択された組成物を均一混合し、実施例１〜２及び比較例１〜１０のカラーフィルター用緑色顔料分散レジスト組成物を得た。 <Green pigment dispersion resist composition for color filter of Examples 1-2 and Comparative Examples 1-10>
A composition selected from pigment dispersion resist compositions 1 to 8 for color filters so as to have the pigment ratio in Table 3 is uniformly mixed, and green pigment dispersion resists for color filters of Examples 1-2 and Comparative Examples 1-10 A composition was obtained.

Figure 2017138561
Figure 2017138561

（評価）
＜カラーフィルター用緑色顔料分散レジスト組成物の色特性の評価＞
実施例１〜２及び比較例１〜１０のカラーフィルター用緑色顔料分散レジスト組成物を、スピンコーターを用いてガラス基板上に塗布した。次いで、１００℃で３分間プレベークした後、高圧水銀灯で露光し、更に２３０℃で３０分間ポストベークした。次いで、実施例１〜２及び比較例１〜１０の各レジストの色特性（ｘ，ｙ，Ｙ）を分光光度計（島津製作所社製、ＵＶ−２５００ＰＣ、Ｃ光源２°視野）で測定した。実施例１〜２及び比較例1〜１０では、色度ｘ＝０．２２４、ｙ＝０．６６９での膜厚、明度Ｙを求めた。 (Evaluation)
<Evaluation of color characteristics of green pigment dispersed resist composition for color filter>
The green pigment dispersion resist compositions for color filters of Examples 1-2 and Comparative Examples 1-10 were applied on a glass substrate using a spin coater. Next, after prebaking at 100 ° C. for 3 minutes, the film was exposed with a high-pressure mercury lamp, and further post-baked at 230 ° C. for 30 minutes. Next, the color characteristics (x, y, Y) of the resists of Examples 1-2 and Comparative Examples 1-10 were measured with a spectrophotometer (manufactured by Shimadzu Corporation, UV-2500PC, C light source 2 ° visual field). In Examples 1 and 2 and Comparative Examples 1 to 10, the film thickness and brightness Y at chromaticity x = 0.224 and y = 0.669 were obtained.

本発明に沿った例である実施例１〜２によれば、カラーフィルター用緑色顔料レジスト組成物は、Ｙの値が高く、かつ膜厚が小さいのでカラーフィルターとして適切な光学的性質を備えることが解る。
一方、Ｃ．Ｉ．ピグメントグリーン５９を使用せずに、ほかの顔料を採用してなる比較例１〜１０によれば、ｘとｙの値が実施例と共通しても、Ｙの値が低いために、カラーフィルター用として適切に使用することができない。 According to Examples 1 and 2, which are examples in accordance with the present invention, the green pigment resist composition for a color filter has a high Y value and a small film thickness, and therefore has suitable optical properties as a color filter. I understand.
On the other hand, C.I. I. According to Comparative Examples 1 to 10 in which other pigments are used without using Pigment Green 59, even though the values of x and y are the same as those of the examples, the value of Y is low. It cannot be used properly for use.

表３からわかるように、緑色顔料としてＣ．Ｉ．ピグメントグリーン５９を使用したカラーフィルター用緑色顔料分散物は、小さい膜厚においても明度が非常に高いことがわかる。 As can be seen from Table 3, C.I. I. It can be seen that the green pigment dispersion for color filters using Pigment Green 59 has very high brightness even at a small film thickness.

Claims (7)

顔料、顔料分散剤および溶剤を含むカラーフィルター用緑色顔料分散物において、顔料としてＣ．Ｉ．ピグメントグリーン５９を含むカラーフィルター用緑色顔料分散物。   In a green pigment dispersion for a color filter containing a pigment, a pigment dispersant and a solvent, C.I. I. Green pigment dispersion for color filter containing CI Pigment Green 59. 前記顔料分散剤が３級アミノ基及び／又は４級アンモニウム基を有し、３ｍｇＫＯＨ／ｇ以上のアミン価を有し、ブロック型構造であるアクリル系重合体を含む請求項１記載のカラーフィルター用緑色顔料分散物。   2. The color filter according to claim 1, wherein the pigment dispersant has a tertiary amino group and / or a quaternary ammonium group, has an amine value of 3 mgKOH / g or more, and contains an acrylic polymer having a block type structure. Green pigment dispersion. 前記顔料がＣ．Ｉ．ピグメントイエロー１８５を含む請求項１または２に記載のカラーフィルター用緑色顔料分散物。   The pigment is C.I. I. The green pigment dispersion for color filters according to claim 1 or 2, comprising Pigment Yellow 185. 前記緑色顔料と前記黄色顔料との質量比率が、９５／５〜４０／６０である請求項１〜３のいずれかに記載のカラーフィルター用緑色顔料分散物。   The green pigment dispersion for a color filter according to any one of claims 1 to 3, wherein a mass ratio of the green pigment to the yellow pigment is 95/5 to 40/60. 前記顔料が微粒子化処理された顔料である請求項１〜４のいずれかに記載のカラーフィルター用緑色顔料分散物。   The green pigment dispersion for a color filter according to any one of claims 1 to 4, wherein the pigment is a finely divided pigment. さらに、Ｃ．Ｉ．ピグメントイエロー１８５のスルホン化物を含む請求項１〜５のいずれかに記載のカラーフィルター用緑色顔料分散物。   Furthermore, C.I. I. The green pigment dispersion for a color filter according to any one of claims 1 to 5, comprising a sulfonated product of Pigment Yellow 185. 請求項１〜６に記載のカラーフィルター用緑色顔料分散物により形成された塗布層を有するカラーフィルター。   The color filter which has a coating layer formed with the green pigment dispersion for color filters of Claims 1-6.
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