Patent ID: 6440491
Filing Date: 2002-08-27
Classification: C03C,H01J

Abstract:
A method of forming a diffuser coating on a transparent substrate, said method comprising:spraying at least one layer of a precursor solution onto a transparent substrate to form a preliminary coating; at least partially densifying said preliminary coating; spraying a further layer of a precursor solution onto said preliminary coating; and firing said preliminary coating and said further layer to form a diffuser surface coating on said substrate; said method including at least one of a) forming said coating to have a gloss reading less than about 80 gloss units, b) forming said coating to have a resolution of at least 3 lines per millimeter, c) forming said coating to have a thickness of less than about 3 microns, and d) firing said preliminary coating and said further layer at a temperature in the range of from about 250Â° C. to about 600Â° C.