The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 1995
Filed:
Jul. 23, 1993
Eiji Yoda, Yokohama, JP;
Toru Nakamura, Yokohama, JP;
Hitoshi Yuasa, Yokohama, JP;
Yutaka Otsuki, Yokohama, JP;
Nippon Oil Co., Ltd., Tokyo, JP;
Abstract
A method for producing a color filter involves (A) forming a photosensitive coating film on at least a transparent electrically conductive layer of a first substrate having both the transparent electrically conductive layer and a light-intercepting layer on its surface or a second substrate having the transparent electrically conductive layer on its outermost surface and a light-intercepting layer between the second substrate and the transparent electrically conductive layer and exposing the photosensitive coating film through a mask having patterns of at least three different degrees of light transmittances, and (B) developing and removing a photosensitive coating film region corresponding to a pattern having smallest degree of light transmittance or a pattern having largest degree of light transmittance for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed transparent electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film and electrodepositing the colored coating being sequentially repeated for the respective patterns having different degrees of light transmittances where the sequence of repetition is of increasing light transmittance or decreasing light transmittance.