Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-04-03
2007-04-03
Yamnitzky, Marie (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257SE51043
Reexamination Certificate
active
10626730
ABSTRACT:
A device is provided, having an anode, a cathode, and a first organic layer disposed between the anode and the cathode. The first organic layer produces phosphorescent emission when a voltage is applied between the anode and the cathode. An organic enhancement layer disposed between the first organic layer and the cathode is also provided. The organic enhancement layer is in direct contact with the first organic layer. The organic enhancement layer may comprise a material of structure (I):The material of structure I is thermally stable and is a high energy band gap material.
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Knowles David B.
Kwong Raymond
Ma Bin
Tung Yeh-Jiun
Universal Display Corporation
Yamnitzky Marie
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