BLACK PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR PRODUCING PATTERNED CURED PRODUCT, PATTERNED CURED PRODUCT, AND BLACK MATRIX

• Main Authors: SATO AZUMI, SAKATA MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 14.04.2022
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; BASIC ELECTRIC ELEMENTS; CINEMATOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; MATERIALS THEREFOR; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide a black photosensitive resin composition which enables formation of a cured product that has high solvent resistance even when a bake temperature is low, has a pattern shape excellent in straight advancing property, and has light-shielding property, a method for producing a patterned cured product using the black photosensitive resin composition, a patterned cured product which is composed of the cured product of the black photosensitive resin composition, and a black matrix which is composed of the cured product of the black photosensitive resin composition.SOLUTION: A black photosensitive resin composition contains an alkali-soluble resin (A), a photopolymerizable monomer (B), a photopolymerization initiator (C), a light-shielding agent (D), and a polyfunctional thiol compound (E), in which the light-shielding agent (D) is composed of a specific organic black pigment (D1) and a pigment (D2) other than the organic black pigment (D1), a content of the light-shielding agent (D) in the total solid content is 25 mass% or more and 50 mass% or less, and a ratio of the organic black pigment (D1) to the total of the organic black pigment (D1) and the pigment (D2) is 40 mass% or more and 80 mass% or less.SELECTED DRAWING: None 【課題】ベーク温度が低い場合でも高い溶剤耐性を有し且つ直進性に優れたパターン形状を有する遮光性の硬化物を形成することができる黒色感光性樹脂組成物と、当該黒色感光性樹脂組成物を用いるパターン化された硬化物の製造方法と、前述の黒色感光性樹脂組成物の硬化物からなるパターン化された硬化物と、前述の黒色感光性樹脂組成物の硬化物からなるブラックマトリクスとを提供する。【解決手段】アルカリ可溶性樹脂（Ａ）と光重合性モノマー（Ｂ）と光重合開始剤（Ｃ）と遮光剤（Ｄ）と多官能チオール化合物（Ｅ）とを含み、遮光剤（Ｄ）が特定の有機黒色顔料（Ｄ１）及び有機黒色顔料（Ｄ１）以外の顔料（Ｄ２）からなり、全固形分における遮光剤（Ｄ）の含有量が２５質量％以上５０質量％以下であり、有機黒色顔料（Ｄ１）及び顔料（Ｄ２）の合計に対する有機黒色顔料（Ｄ１）の割合が４０質量％以上８０質量％以下である黒色感光性樹脂組成物を用いる。【選択図】なし