Organic electroluminescent display device comprising an...

Details Organic electroluminescent display device comprising an... Organic electroluminescent display device comprising an...

2005-03-29

2005-03-29

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

C313S504000, C313S506000, C428S917000

Reexamination Certificate

active

06873091

ABSTRACT:
An organic electroluminescent display device comprising a front electrode member, a counterelectrode member, an organic electroluminescent member arranged between the front electrode member and the counterelectrode member, and an optical filter member with a cut-off filter to absorb electromagnetic radiation whose wavelength is below a cut-off wavelength λk, and to transmit electromagnetic radiation whose wavelength is above a cut-off wavelength λk, has an improved contrast under bright ambient light conditions.

REFERENCES:
patent: 5049780 (1991-09-01), Dobrowolski et al.
patent: 6117529 (2000-09-01), Leising et al.
patent: 6576352 (2003-06-01), Hirai
patent: 0272 760 (1988-06-01), None
patent: WO0106816 (2001-01-01), None

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