Television – Video display – Cathode-ray tube
Patent
1996-06-25
1997-12-16
Vu, Kim
Television
Video display
Cathode-ray tube
348789, 348794, 348 59, 348786, 348840, 345 32, 359443, 359457, 359456, 359455, 359742, 359819, 359811, 359619, H04N 572, H04N 564, G09G 300, G03B 2156
Patent
active
056991312
ABSTRACT:
The present invention provides a screen assembly wherein measures are taken to prevent slack produced in a lenticular lens sheet due to temperature changes and gaps created between a Fresnel lens sheet and the lenticular lens sheet due to temperature changes, thereby enabling the display of images free of inconsistencies in color. The structure of the screen assembly has the lower parts of a lenticular lens sheet and a Fresnel lens sheet comprising a screen fixed together, the upper part of the light radiant side of the lenticular lens sheet fixed to the upper part of a framework, the lower part of the screen, where the Fresnel lens sheet and the lenticular lens sheet are put together not being fixed to the lower part of the framework and a specified clearance created between the lower part of the screen and the lower part of the framework.
REFERENCES:
patent: 4536056 (1985-08-01), Oguino et al.
patent: 4921330 (1990-05-01), Takahashi et al.
patent: 5200854 (1993-04-01), Ogino et al.
patent: 5289311 (1994-02-01), McClelland et al.
patent: 5611611 (1997-03-01), Ogino et al.
European Search Report dated Jan. 22, 1997.
Aoki Satoshi
Mitani Katsuaki
Harris Tia M.
Matsushita Electric - Industrial Co., Ltd.
Vu Kim
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