Jul 2010Novaled 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.