Organic light emitting devices for ultra-lightweight, color flat panel displays
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We review recent progress in small molecule organic light emitting devices (OLEDs) with emphasis on their potential application to lightweight, head-up displays. We discuss OLEDs grown on thin, flexible, plastic substrates which may be bent over a radius of curvature of as little as 0.7 cm without damage and exhibit operating voltages and efficiencies similar to OLEDs grown on conventional glass substrates. Transparent OLEDs grown on such substrates create the potential for a new type of lightweight, full-color, OLED pixel in which the R, G and B emission layers are vertically stacked to provide a simple fabrication process, minimum pixel size, and maximum fill factor.