Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – Plural light emitting devices
Reexamination Certificate
2005-04-05
2005-04-05
Lewis, Monica (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
Plural light emitting devices
C257S079000, C257S040000, C313S503000, C313S504000, C313S506000
Reexamination Certificate
active
06876007
ABSTRACT:
A light emitting device is provided, which uses alternating current drive as a method of driving the light emitting device, and in which light emission is always obtained when voltages having different polarities are alternately applied, and a method of manufacturing the light emitting device is also provided. A first light emitting element made from an anode, an organic compound layer, and a cathode, and a second electrode made from an anode, an organic compound layer, and a cathode are formed. The light emitting elements are formed sandwiching the same organic compound layer. The anode of the first light emitting element and the anode of the second light emitting element, and the cathode of the first light emitting element and the cathode of the second light emitting element, are formed on opposite sides of the organic compound layer, respectively, thus sandwiching the organic compound layer. Note that voltages having an inverse polarity are applied alternately by the alternating current drive, and therefore light can always be emitted by any one of the first light emitting element or the second light emitting element.
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Seo Satoshi
Yamazaki Shunpei
Lewis Monica
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co,. Ltd.
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