Light emitting device resistant to damage by thermal expansion

Details Light emitting device resistant to damage by thermal expansion Light emitting device resistant to damage by thermal expansion

1993-12-08

1995-04-11

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313497, 313422, 3151694, 445 24, H01J 154

Patent

active

054061709

ABSTRACT:
The present invention relates to light emitting devices which emit light upon impingement of thermoelectrons on a front panel having fluorescent elements and where an array of cathodes and electrodes are provided on a substrate within each light emitting device. Thus, in the present invention, first electrode leads having a coefficient of thermal expansion substantially equal to that of the substrate are inserted into and through the substrate, and second electrode leads having a coefficient of thermal expansion substantially equal to that of the rear panel are inserted into and through the rear panel, and the first and second electrode leads are connected such that the substrate is supported at a distance above the rear panel.

REFERENCES:
patent: 2731578 (1956-01-01), McCullough
patent: 3299305 (1967-01-01), Kreuder
patent: 3599027 (1971-08-01), Koshizuka et al.
patent: 4893056 (1990-01-01), Hara et al.
patent: 4900981 (1990-02-01), Yamazaki et al.
patent: 4954885 (1990-09-01), Ito et al.
patent: 4970430 (1990-11-01), Kamogawa et al.
patent: 4972116 (1990-11-01), Tatsuda et al.
patent: 5341065 (1994-08-01), Uemura et al.

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