Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Patent
1995-05-25
1996-11-19
O'Shea, Sandra L.
Electric lamp and discharge devices
Cathode ray tube
Beam deflecting means
313496, 313268, 313292, 313463, 313466, H01J 2918
Patent
active
055765963
ABSTRACT:
An optical device contains first and second plates (302 and 303), a pattern of ridges (314) situated over the first plate, light-emissive regions (313) situated in spaces between the ridges, electron-emissive elements (309) situated over the second plate, and supporting structure (308) that maintains a desired spacing between the plates. The electron-emissive elements emit electrons that strike the light-emissive regions, causing them to produce light of various colors. The ridges, which extend further away from the first plate than the light-emissive regions, are substantially non-emissive of light when hit by electrons. Each ridge includes a dark region formed with metal, ceramic, semiconductor, or/and carbide. The ridges thereby form a raised black matrix that improves contrast and color purity.
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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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