Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Screen other than for cathode-ray tube
Patent
1995-03-15
1996-04-02
Rosasco, S.
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Screen other than for cathode-ray tube
430311, 430321, G03F 900
Patent
active
055039529
ABSTRACT:
A color filter having discrete color layers arrayed on a substrate and light screening coating films interlaced between the color layers and if desired seal part having no coating film thereon, with high precision is industrially advantageously manufactured by (a) forming a transparent electroconductive layer on a transparent substrate, (b) coating the transparent electroconductive layer with a positive photoresist composition to form a photoresist layer, (c) exposing the photoresist layer to light through a photomask and developing the light-exposed photoresist layer to form a circuit-form photoresist layer, (d) etching and eliminating the transparent electroconductive layer bared in the gaps between the circuit-form photoresist layer to obtain a substrate having thereon a circuit-form laminate, (e) exposing the laminate to light through a photomask and developing the light-exposed laminate to bare the transparent electroconductive layer discretely, (f) carrying out electrodeposition using a thermosetting or photosensitive resin material-containing electro-deposition bath to form colored layers on the discretely bared transparent electroconductive layers, (g) eliminating the photoresist layer remaining after the development of step (e) to obtain a substrate having discrete color layers, the gaps being bared substrate surface and bared transparent electroconductive layer, (h) coating the substrate with a light screening material-containing photosensitive resin composition to form a light screening resin layer, and (i) exposing the light screening resin layer to light from the back side and developing the substrate to eliminate the unexposed part of the light screening resin layer. The color filter is well prevented from leakage of light and clear in coloration and superior in optical properties. A liquid crystal display of high image quality is manufactured by the use of this color filter.
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Kubo Akira
Okada Yoshikatsu
Suzuki Tameyuki
Rosasco S.
Shinto Paint Co. Ltd.
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