Nippon Electric Glass (NEG) has announced a development accord with Saint-Gobain to make internal extraction layers (IELs) for use in OLED lighting.
An IEL acts to increase the amount of light emitted from any substrate it is fitted too. When used on an OLED lighting module this would increase the overall luminosity of the light. This could be an important innovation as despite the very low power consumption, a failure to develop OLED lights which are bright enough has inhibit their introduction.
NEG has already invested in OLED lighting materials with ultra-thin and high refractive index glasses - though neither is yet ready for commercial production. It has produced one demonstrator lighting module that is 100 µm thick.
Saint Gobain has also been putting R&D funding into OLED materials. It has filed numerous patents and in 2008 worked with Novaled to develop the Silverduct anode that is 10 times more efficient than indium tin oxide. It glasses are already being used by OLED light developers, including Osram.
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