Organic electroluminescent display device

Details Organic electroluminescent display device Organic electroluminescent display device

2006-01-31

2006-01-31

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000

Reexamination Certificate

active

06992437

ABSTRACT:
An organic electroluminescent display device, which has a superior efficiency and life cycle characteristics and maintains constant color coordinates as compared to an existing organic electroluminescent display device, includes at least one emission layer and a charge transport layer between a first electrode and a second electrodes. The emission layer includes at least two or more dopants of a host material. The two or more dopants include a first phosphorescent dopant and a second phosphorescent dopant. Each of the first phosphorescent dopant and second phosphorescent dopant includes iridium or platinum.

REFERENCES:
patent: 6285039 (2001-09-01), Kobori et al.
patent: 6310360 (2001-10-01), Forrest
patent: 6392250 (2002-05-01), Aziz
patent: 6458475 (2002-10-01), Adachi et al.
patent: 6475648 (2002-11-01), Hatwar et al.

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