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White OLEDs

Photonics Spectra
Jul 2010
Novaled AGRequest Info
 
Novaled GmbH has introduced white top-emitting organic light-emitting diodes (OLEDs) with a lifetime exceeding 50,000 h and a power efficiency of 30 lm/W at an initial luminance of 1000 cd/m2. The white top-emitting OLED structure is made on metal substrates. Metal substrates bring advantages such as good heat dissipation, mechanical stability and bended designs, and they enable low-cost roll-to-roll production. The devices were developed using proprietary PIN OLED technology with the company’s doping and host materials in association with a blue flourescent emitting material from SFC Korea. They have an indium tin oxide-free top contact and incorporate a proprietary light extraction material layer to enhance efficiency. This outcoupling material reduces the color shift over a wide viewing angle so that it can hardly be detected by the naked eye.


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blue fluorescent emitting materialcolor shiftdopingeyeheat dissipationhost materialindium tin oxide-free toplight sourcesluminancemetal substrateNew ProductsNovaledNovaled GmbHOLEDsOrganic light-emitting diodesPIN OLEDpower efficiencyroll-to-rollSFC Koreastabilityviewing anglewhite OLEDwhite top-emitting organic light emitting diode

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