High voltage spacer for a flat panel display with specific cross

Details High voltage spacer for a flat panel display with specific cross High voltage spacer for a flat panel display with specific cross

1996-07-31

1999-06-08

O'Shea, Sandra

Electric lamp and discharge devices

Cathode ray tube

Envelope

313496, 313495, 445 24, H01J 3100

Patent

active

059107030

ABSTRACT:
The invention is a spacer method and apparatus for a high-voltage emissive vacuum flat panel display device. The display device has front and rear panels held in place by a supporting frame around the periphery of the panels. The back panel has an array of electron sources that accelerate electrons towards the front panel to bombard and excite a light-emissive material deposited thereon, thereby modulating the screen and displaying desired information patterns. A spacer according to the present invention can be described generally as having a body and N arms extending radially from the body, wherein N is at least three. The body and the N arms physically contact the front and back panels of the display to thereby separate the front panel from the back panel. The arms need not have the same length of extension from the body. Furthermore, the arms may or may not taper as they extend from the body. Such a spacer has a high compressive stress resistance, does not buckle easily, is easy to make invisible, is easy to fabricate and to assemble into the display device.

REFERENCES:
patent: 3753022 (1973-08-01), Farzer, Jr.
patent: 3910536 (1975-10-01), Sharp et al.
patent: 5561343 (1996-10-01), Lowe
patent: 5587623 (1996-12-01), Jones
patent: 5589728 (1996-12-01), Levine et al.
patent: 5734224 (1998-03-01), Tagawa et al.

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