Electric Signs

Novaled Demonstrates White, Top-emitting OLED Devices

Demonstrates long lifetime and high efficiency, the company states

Published

14 years ago

May 20, 2010

By Wade Swormstedt Signs of the Times May 2010 Issue

Novaled (Dresden, Germany) has demonstrated white, top-emitting OLED devices with a lifetime that exceeds 50,000 hours and a power efficiency of 30lm/W at an initial luminance of 1,000 cd/sq. meter. The high-performance, white, top-emitting OLEDs use the Novaled PIN OLED® technology, with its proprietary doping, and host materials in association with a blue flourescent emitting material from SFC Korea. The device has an ITO-free, top contact and incorporates a Novaled-specific, light-extraction material layer to enhance the efficiency. The outcoupling material reduces the color shift over a wide viewing angle so that it’s barely detectible. The technology also allows the use of metal substrates in conjunction with the OLEDs.

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