OLED device having improved contrast

Details OLED device having improved contrast OLED device having improved contrast

2007-11-13

2007-11-13

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S503000, C313S504000, C313S505000, C313S506000, C313S512000

Reexamination Certificate

active

11257312

ABSTRACT:
A full-color organic light-emitting diode (OLED) device, comprising: a) a plurality of light emitting OLED pixels, each pixel having three or more color light-emitting elements for emitting different colors of light specifying a gamut and at least one additional light-emitting element for emitting a color of light within the gamut and wherein the power efficiency of the additional element is higher than the power efficiency of at least one of the three or more gamut elements; and b) a patterned neutral density filter selectively filtering the emitted light from the additional light emitting element.

REFERENCES:
patent: 6476783 (2002-11-01), Matthies et al.
patent: 6919681 (2005-07-01), Cok et al.
patent: 2004/0113875 (2004-06-01), Miller et al.
patent: 2004/0189196 (2004-09-01), Cok
patent: 2005/0122053 (2005-06-01), Ko

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