Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2004-09-24
2010-06-08
Parker, Kenneth A (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257SE51028
Reexamination Certificate
active
07732808
ABSTRACT:
A light-emitting element is disclosed that can drive at a low driving voltage and that has a longer lifetime than the conventional light-emitting element, and a method is disclosed for manufacturing the light-emitting element. The disclosed light-emitting element includes a plurality of layers between a pair of electrodes; and at least one layer among the plurality of layers contains one compound selected from the group consisting of oxide semiconductor and a metal oxide, and a compound having high hole transportation properties. Such the light-emitting element can suppress the crystallization of a layer containing one compound selected from the group consisting of oxide semiconductor and a metal oxide, and a compound having high hole transportation properties. As a result, a lifetime of the light-emitting element can be extended.
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Ikeda Hisao
Sakata Junichiro
Ho Anthony
Parker Kenneth A
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co. Ltd
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