Method for producing a color filter with a photosensitive coatin

Details Method for producing a color filter with a photosensitive coatin Method for producing a color filter with a photosensitive coatin

1996-12-02

1999-03-02

Nuzzolillo, Maria

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Screen other than for cathode-ray tube

430324, 430329, 430331, G03F 900

Patent

active

058768823

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 substrate having both the transparent electrically conductive layer and a light-intercepting layer on its outermost surface, and exposing the photosensitive coating film to light in a first irradiation amount through a mask having a predetermined pattern of a certain light transmittance and at least once displacing the mask to another position on the photosensitive coating film and exposing the photosensitive coating film to light in a second irradiation amount different from the first irradiation amount through the mask; and (B) developing and removing a photosensitive coating film portion exposed to light in one of smallest and largest irradiation amounts for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed 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 irradiation amounts where the sequence of repetition is selected from the group consisting of increasing irradiation amount and decreasing irradiation amount to form different colored layers, respectively.

REFERENCES:
patent: 4479149 (1984-10-01), Yoshioka et al.
patent: 4580159 (1986-04-01), Manabe
patent: 4733096 (1988-03-01), Horiguchi
patent: 5214541 (1993-05-01), Yamasita et al.
patent: 5214542 (1993-05-01), Yamasita et al.
patent: 5334468 (1994-08-01), Yamasita et al.

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