Electric lamp and discharge devices – Photosensitive – Photocathode
Patent
1996-07-08
1998-05-12
Patel, Ashok
Electric lamp and discharge devices
Photosensitive
Photocathode
H01J 4018
Patent
active
057511098
ABSTRACT:
The present invention is a video display device that utilizes the novel concept of generating an electronically controlled pattern of electron emission at the output of a segmented photocathode. This pattern of electron emission is amplified via a channel plate. The result is that an intense electronic image can be accelerated toward a phosphor thus creating a bright video image. This novel arrangement allows for one to provide a full color flat video display capable of implementation in large formats. In an alternate arrangement, the present invention is provided without the channel plate and a porous conducting surface is provided instead. In this alternate arrangement, the brightness of the image is reduced but the cost of the overall device is significantly lowered because fabrication complexity is significantly decreased.
REFERENCES:
patent: 2258294 (1941-10-01), Lubszynski et al.
patent: 3254253 (1966-05-01), Davis et al.
patent: 4563614 (1986-01-01), Howorth
patent: 4661694 (1987-04-01), Corcoran
patent: 5013902 (1991-05-01), Allard
Dixon Keith L.
Patel Ashok
United States of America as represented by the Administrator, Na
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