发明名称 OLED device having improved contrast
摘要 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.
申请公布号 US7294959(B2) 申请公布日期 2007.11.13
申请号 US20050257312 申请日期 2005.10.24
申请人 EASTMAN KODAK COMPANY 发明人 COK RONALD S.;BOROSON MICHAEL L.
分类号 H05B33/00 主分类号 H05B33/00
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