Toray Industries, Inc.

Akihiro Ishikawa

Kazuto Miyoshi

Mitsuhito Suwa

Yugo Tanigaki

Yoshihiko Inoue

Toru Okazawa

Hitoshi Araki

Akinori Saeki

Chika Hibino

Yoko Momiyama

Takashi Honma

The present invention provides a photosensitive composition which can suppress the generation of a development residue on the surface of an electrode and the corrosion of the electrode to form a black pixel division layer, and also can suppress the generation of off-pixel in an organic EL display device comprising the pixel division layer. Disclosed is a photosensitive composition comprising (a) a pigment, (b) a resin having two or more tertiary amino groups in the molecule, and (c) a photosensitive agent, wherein the component (b) contains a resin having a structure represented by the general formula (1).

Photosensitive composition, negative photosensitive composition, pixel division layer and organic EL display device

The present invention provides a negative-type photosensitive resin composition capable of obtaining a cured film suppressing generation of development residues caused by a pigment and having high sensitivity and excellent heat resistance and light blocking capability. A negative-type photosensitive resin composition contains an alkali-soluble resin (A), a radical-polymerizable compound (B), a photopolymerization initiator (C1), and a pigment (D1). In this resin composition, the radical-polymerizable compound (B) contains a flexible chain-containing radical-polymerizable compound (B1), the flexible chain-containing radical-polymerizable compound (B1) contains a compound having (I) a structure derived from a compound having at least three hydroxyl groups in the molecule, (II) at least three ethylenically unsaturated double bond groups, and (III) at least one aliphatic chain, the aliphatic chain has an average molecular weight of 40 to 500, and the content of the pigment (D1) is 5 to 70 mass % of the total solid content.

Negative-type photosensitive resin composition, cured film, element and display device provided with cured film, and production method therefor

An organic EL display device having excellent light-emitting reliability while it has pixel division layer () and/or planarization layer () having excellent optical properties is provided. An organic EL display device comprising first electrode (), the pixel division layer (), light emitting pixel (), second electrode (), the planarization layer (), and substrate () wherein the pixel division layer () and/or the planarization layer () contains a yellow pigment having the benzimidazolone structure represented by the structural formula (1): 

Organic EL display device

A photosensitive composition containing at least one compound selected from the group of the following (a-1) to (a-3) and containing (b) a photosensitizer: A photosensitive composition capable of forming a pixel division layer that has high flexibility and affords excellent light emission reliability to an organic EL display device is provided.

Photosensitive composition, cured film and organic el display device

The present invention is aimed at providing a laminated base material capable of conveniently attaining the enhancement in lightness of a decorating layer without requiring a thickened film thickness and an increased number of complicated steps. The present invention provides a laminated base material including a substrate (A), and a layer (B) and a layer (C) sequentially laminated on a surface of the substrate (A), wherein a refractive index nA of the substrate (A) and a refractive index nB of the layer (B) satisfy the relationship of 0.6&#x2265;nA&#x2212;nB&#x2265;0.1, and the layer (C) contains a pigment.

Laminated base material, cover glass, touch panel, and method for manufacturing laminated base material

Provided is a black pigment that enables pattern formation of pixel division layer while suppressing generation of development residue. The black pigment comprises (a) a core containing at least one organic black pigment selected from the group consisting of benzodifuranone-based black pigments, perylene-based black pigments, azo-based black pigments, and isomers thereof and (b) a coating layer containing silica and/or a metal oxide and/or a metal hydroxide.

Black pigment, method for producing same, pigment dispersion liquid, photosensitive composition and cured product of said photosensitive composition

The purpose of the present invention is to provide a negative-type photosensitive coloring composition ideal for forming a white, light-blocking pattern and which not only has excellent chemical resistance, but also has extremely excellent heat resistance and does not yellow or crack even when undergoing high-temperature processing. This negative-type photosensitive coloring composition contains (A) a white pigment, (B) a polysiloxane obtained by co-hydrolyzate condensation of an alkoxysilane compound containing a compound of a specific structure, (C) polyfunctional acrylic monomers, (D) a photoradical polymerization initiator and (E) an organic solvent.

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Otsu, Japan

Akihiro Ishikawa