Design of multiwavelength resonant cavities for white organic light-emitting diodes

We have developed a multiwavelength resonant cavity (MWRC) optical device designed for organic light-emitting diodes (OLEDs). This device consists of two or more wavelength-selective mirrors, where each resonant peak can be adjusted independently, resulting in enhancement of the luminance and modification of the color of emission. We have designed a white OLED with a MWRC by using optical simulation and have confirmed that the white MWRC device is 1.3 times as bright as that of the conventional noncavity one. (C) 2003 American Institute of Physics.