Etching a substrate: processes – Forming or treating optical article – Phosphor screen
Patent
1995-05-25
1998-03-10
Tung, T.
Etching a substrate: processes
Forming or treating optical article
Phosphor screen
205122, 216 41, 216 52, 216 65, 216 75, 313422, 313463, 313466, 313496, C23F 100, C25D 502
Patent
active
057257876
ABSTRACT:
A light-emitting structure (306) contains a main section (302), a pattern of ridges (314) situated along the main section, and a plurality of light-emissive regions (313) situated in spaces between the ridges. The light-emissive regions produce light of various colors upon being hit by electrons. The ridges, which extend further away from the main section than the light-emissive regions, are substantially non-emissive of light when hit by electrons. Each ridge includes a dark region. The ridges thereby form a raised black matrix that improves contrast and color purity. When the light-emitting structure is used in an optical display, the raised black matrix contacts internal supports (308) and, in so doing, protects the light-emissive regions from being damaged. The light-emitting structure can be formed according to various techniques of the invention.
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Curtin Christopher J.
Duboc, Jr. Robert M.
Fahlen Theodore S.
Lovoi Paul A.
Nowicki Ronald S.
Candescent Technologies Corporation
Meetin Ronald J.
Tung T.
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