Dai Nippon Printing Co., Ltd.

Nippon Oil Company

Norikatsu Ono

Masayuki Ando

Yutaka Otsuki

Hiroyoshi Omika

Toru Nakamura

Hitoshi Yuasa

Shigeki Chujo

Masayoshi Tanaka

Akihiko Katashima

Haruyoshi Sato

Tadafumi Shindo

Eiji Yoda

Teruhisa Kuroki

An antistatic coat of the present invention coats a surface of a base body so as to prevent accumulation of electric charges in the base body, the antistatic coat having a multi-layers structure comprising at least one antistatic layer, and the antistatic layer being disposed between the base body and an outermost surface layer of the antistatic coat. On the back surface side of a thermal transfer sheet, there is formed a heat resistant slip layer through an antistatic layer, or a heat resistant slip layer containing a conductive material. Sulfonated polyaniline, a conductive carbon black having primary particle size of up to 40 nm and specific surface of at least 130 m /g, and a conductive carbon black having an oil absorption of at least 75 ml/100 g are favorable conductive material.

Antistatic coat, thermal transfer sheet having antistatic property and antistatic agent

An antistatic coat of the present invention coats a surface of a base body so as to prevent accumulation of electric charges in the base body, the antistatic coat having a multi-layers structure comprising at least one antistatic layer, and the antistatic layer being disposed between the base body and an outermost surface layer of the antistatic coat. On the back surface side of a thermal transfer sheet, there is formed a heat resistant slip layer through an antistatic layer, or a heat resistant slip layer containing a conductive material. Sulfonated polyaniline, a conductive carbon black having primary particle size of up to 40 nm and specific surface of at least 130 m,/g, and a conductive carbon black having an oil absorption of at least 75 ml/100 g are favorable conductive material.

A color liquid crystal display device contains a color filter substrate, a counterelectrode substrate disposed to oppose the color filter substrate via a sealing material disposed in contact with peripheral portions of the color filter substrate and the counterelectrode substrate, and a liquid crystal layer sealed between the color filter substrate and the counterelectrode substrate and surrounded by the sealing material. The color filter substrate contains a transparent substrate, a black matrix and a plurality of colored layers of plural colors, the black matrix and the colored layers being formed in a predetermined pattern in a first region on the transparent substrate, and a resin layer having substantially same thickness as that of the black matrix and formed in a second peripheral region on the transparent substrate positioned peripherally adjacent to the first region. The sealing material is in contact with the resin layer and a black matrix portion in periphery of the first region. A method for producing the color filter substrate involves the steps for forming the resin layer having substantially the same thickness as that of the black matrix.

Color liquid crystal display device and method for producing color

An antistatic coat of the present invention coats a surface of a base body so as to prevent accumulation of electric charges in the base body, the antistatic coat having a multi-layers structure comprising at least one antistatic layer, and the antistatic layer being disposed between the base body and an outermost surface layer of the antistatic coat. On the back surface side of a thermal transfer sheet, there is formed a heat resistant slip layer through an antistatic layer, or a heat resistant slip layer containing a conductive material. Sulfonated polyaniline, a conductive carbon black having primary particle size of up to 40 nm and specific surface of at least 130 m.sup.2 /g, and a conductive carbon black having an oil absorption of at least 75 ml/100 g are favorable conductive material.

Antistatic coat, thermal transfer sheet having antistatic property and

A method for preparing a substrate having a light-shielding layer involves forming a photosensitive coating film on a transparent electrically conductive layer formed on a transparent substrate, exposing the photosensitive coating film via a mask exhibiting light transmitting properties, removing and developing the coating film for exposing the transparent electrically conductive layer and electrodepositing a dark-hued coating on the exposed transparent electrically conductive layer for forming the light-shielding layer, and heating the light-shielding layer. The substrate having the light-shielding layer has a volume resistivity of 1.times.10.sup.2 ohm.cm or higher and may be used for a counterelectrode substrate for a TFT array substrate incorporated in a liquid crystal display device.

Substrate having light shielding layer

A method for producing a color filter involves (a) forming a positive photosensitive coating film on a transparent electrically conductive layer of a transparent substrate; (b) forming a light-irradiated region where a light irradiation amount is different in two steps; (c) developing a larger light-irradiated portion to lay-open the transparent electrically conductive layer followed by electrodepositing a light shielding layer thereon; (d) forming on the positive photosensitive coating film undeveloped in the step (c) a light-irradiated region where a light irradiation amount is different in two steps; (e) developing a larger light-irradiated portion of the photosensitive coating film to lay-open the transparent electrically conductive layer followed by electrodepositing a colored coating thereon; (f) forming on the positive photosensitive coating film undeveloped in the step (e) a light-irradiated region where a light irradiation amount is different in at least three steps; and (g) developing the photosensitive coating film to lay-open the transparent electrically conductive layer followed by electrodepositing a colored coating thereon, operation of the developing and electrodepositing being sequentially repeated at least twice in decreasing light irradiation amounts.

Method for producing color filter

A method for preparing a substrate having a light-shielding layer involves forming a photosensitive coating film on a transparent electrically conductive layer formed on a transparent substrate, exposing the photosensitive coating film via a mask exhibiting light transmitting properties, removing and developing the coating film for exposing the transparent electrically conductive layer and electrodepositing a dark-hued coating on the exposed transparent electrically conductive layer for forming the light-shielding layer, and heating the light-shielding layer. The substrate having the light-shielding layer has a volume resistivity of 1.times.10.sup.2 ohm.multidot.cm or higher and may be used for a counterelectrode substrate for a TFT array substrate incorporated in a liquid crystal display device.

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Narashino, Japan

Norikatsu Ono