Forming pigment color filter arrays

Details Forming pigment color filter arrays Forming pigment color filter arrays

1998-01-29

1999-02-23

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Screen other than for cathode-ray tube

216 24, 503227, G02B 520, G03F 700

Patent

active

058741887

ABSTRACT:
A method of making a color filter array of uniformly thick organic pigments on a first substrate includes coating an adhesion promoting layer over the first substrate; coating the adhesion promoting layer with an intermediate layer; coating the intermediate layer with a photoresist layer; and exposing and developing the photoresist layer to form an-array of first openings. The substrate further includes etching the intermediate layer, using the photoresist layer as a mask, to form an array of second openings in the intermediate layer which are wider than the corresponding first openings in the photoresist layer; depositing an organic pigment layer on the photoresist layer; lifting off the photoresist layer and overlying organic pigment layer; and removing the intermediate layer, leaving the organic pigment layer in the position of the second openings.

REFERENCES:
patent: 4764670 (1988-08-01), Pace et al.
patent: 4793692 (1988-12-01), Kamio et al.
patent: 4876167 (1989-10-01), Snow et al.
patent: 5246803 (1993-09-01), Hanrahan et al.
patent: 5576265 (1996-11-01), DeBoer et al.
patent: 5756240 (1998-05-01), Roberts et al.

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