Flat display device for displaying an image utilizing an electro

Details Flat display device for displaying an image utilizing an electro Flat display device for displaying an image utilizing an electro

1991-08-14

1994-02-15

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313477R, 220 21A, H01J 2986

Patent

active

052870340

ABSTRACT:
A vacuum envelop is formed of at least a flat and rectangular faceplate 21 on which a fluorescent screen is formed, a side wall 22 extending in a direction, which is substantially perpendicular to the faceplate 21, from a peripheral portion of the faceplate, and a rearplate 23 opposing to the faceplate 21. A plurality of rod-shaped support members 31 whose top end portions are wedge-shaped are arranged between the faceplate 21 and the rearplate 23, and a ratio t/P is set to 0.05 or more where t is a thickness of the faceplate and P is an interval between adjacent support members.

REFERENCES:
patent: 4145633 (1979-03-01), Peters et al.
patent: 4166233 (1979-08-01), Stanley
patent: 4622492 (1986-11-01), Barten
Nanomura et al., "A 40-in. Matrix-Driven High-Definition Flat-Panel CRT", Proceedings of SID, vol. 30/4, 1989.
EPO, Patent Abstracts of Japan, Pub. No. JP63164149, Jul. 7, 1988.
EPO, Patent Abstracts of Japan, Pub. No. JP62150638, Dec. 15, 1987.

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