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.