Electric lamp and discharge devices – Cathode ray tube – Screen
Patent
1997-05-23
1999-11-30
O'Shea, Sandra
Electric lamp and discharge devices
Cathode ray tube
Screen
313467, 313408, 313402, H01J 2910
Patent
active
059948299
ABSTRACT:
A CRT 10 has an evacuated envelope 11 comprising a funnel 15 having a neck 14 and an open end. The funnel 15 is sealed at the open end to a faceplate panel 12 having a luminescent screen 22 formed on a viewing area of an interior surface of the faceplate panel by an electrophotographic screening process. The screen 22 comprises a multiplicity of different color-emitting phosphor elements. A light absorbing matrix 23 has a first portion that includes a multiplicity of openings therein overlying the viewing area of the faceplate panel, and a second portion providing an imperforate border 123 extending beyond the viewing area. The phosphor elements are disposed within the openings in the matrix. A color selection electrode 25 is mounted within the faceplate panel 12, in proximity to the screen 22. An electron gun 26 is centrally disposed within the neck 14 for generating and directing a plurality of electron beams 28 toward the screen 22. The screen structure is improved by having at least one of the phospor elements disposed on the imperforate border 123 of the matrix 23.
REFERENCES:
patent: 3558310 (1971-01-01), Mayaud
patent: 4917978 (1990-04-01), Ritt et al.
patent: 4921727 (1990-05-01), Datta et al.
patent: 4921767 (1990-05-01), Datta et al.
patent: 4942332 (1990-07-01), Adler et al.
patent: 5455132 (1995-10-01), Ritt et al.
patent: 5519217 (1996-05-01), Wilbur et al.
patent: 5625251 (1997-04-01), Nosker et al.
Morrell et al. "Color Television Picture Tubes" 1974, pp. 80-85 Academic Press, New York.
Gorog Istvan
Matey James Regis
Simms Robert Edward
Irlbeck Dennis H.
O'shea Sandra
Smith Michael J.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
LandOfFree
Color cathode-ray tube having phosphor elements deposited on an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color cathode-ray tube having phosphor elements deposited on an , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color cathode-ray tube having phosphor elements deposited on an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1676715