Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Patent
1994-01-31
1995-12-19
O'Shea, Sandra L.
Electric lamp and discharge devices
Cathode ray tube
Beam deflecting means
313496, 313292, 313268, 313463, 313466, 3151694, H01J 2918
Patent
active
054771056
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. The dark region of each ridge may be formed with metal, ceramic, semiconductor, or carbide. Each ridge may include an additional region (314b) of different chemical composition than the dark region.
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Curtin Christopher J.
Duboc, Jr. Robert M.
Fahlen Theodore S.
Lovoi Paul A.
Nowicki Ronald S.
MacPherson Alan H.
Meetin Ronald J.
O'Shea Sandra L.
Patel Ashok
Silicon Video Corporation
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