Light emitting device

Details Light emitting device Light emitting device

1992-03-09

1994-03-01

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313509, 313498, H01J 154, F21K 200

Patent

active

052910989

ABSTRACT:
A light emitting device has a transparent substrate, a substantially transparent first electrode layer formed on the transparent substrate, a phosphor layer formed on the first electrode layer, a second electrode layer formed on the phosphor layer, an insulating layer formed on the second electrode layer, and a third electrode layer formed on the insulating layer. A hot electron is generated by the application of a voltage to the second and third electrode layers, and the light emitting device is energized to become luminuous by injecting the hot electron thus generated into the phosphor layer.

REFERENCES:
patent: 3548214 (1970-12-01), Brown
patent: 4777402 (1988-10-01), Mitsumori
patent: 4876481 (1989-10-01), Taniguchi et al.

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