Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1997-11-13
2000-09-19
Day, Michael
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
313422, H01J 130, H01J 1924
Patent
active
061217255
ABSTRACT:
The present invention relates to a flat color display screen including a cathode associated with an electron extraction grid, an anode provided with at least two types of phosphor elements, all polarized to a same potential, and at least two additional superposed grids, positioned on the extraction grid, and each provided with holes defining sub-pixels associated with each of the colors. Each additional grid is associated with a color and some of the holes thereof are of smaller diameter than the coaxially corresponding holes of the other additional grids, for activating the sub-pixels of the corresponding color.
REFERENCES:
patent: 5541473 (1996-07-01), Duboc, Jr. et al.
patent: 5565742 (1996-10-01), Shichao et al.
patent: 5850120 (1998-12-01), Okamoto
Patent Abstracts of Japan, vol. 018, No. 073 (E-1503), Feb. 7, 1994 & JP 05 290767 A (Nippon Steel Corp.), Nov. 5, 1993.
Grand-Clement Jean-Luc
Jager Axel
Day Michael
Pixtech S.A.
Plevy Arthur L.
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