Organic electroluminescence device and organic...

Details Organic electroluminescence device and organic... Organic electroluminescence device and organic...

2005-02-23

2008-11-11

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S505000, C313S506000

Reexamination Certificate

active

07449832

ABSTRACT:
An organic electroluminescence device is disclosed. The device includes an anode, a cathode formed above the anode, a light-emitting layer containing an organic light-emitting material that is formed between the anode and the cathode, a hole-injecting layer on the anode that includes a hole-transporting material and an acceptor, and an electron-transporting suppressing stack between the hole-injecting layer and the light-emitting layer. The electron-transporting suppressing stack consists of multiple carrier-transporting layers, and forms energy barriers relative to electrons flowing from the light-emitting layer to the hole-injecting layer.

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Office Action mailed Apr. 15, 2008 in Corresponding Japanese Patent Application No. 2004-570541.

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