White Light Realization and Color Coordinate Calculation of OLED Devices

Abstract

： White-light OLED devices can be used as a surface light source and for full color displays, which have become the focus of OLED research and development. However, there are some shortcomings in the realization of white-light OLED devices, such as insufficient luminous performance, difficult process control, and easy color drift. To solve these problems, the optimized ratios of primary colors(red, green, and blue) of organic OLED devices were preliminarily obtained through the realization of white light and calculation of the color coordinate. An experimental white-light OLED device was prepared with a color coordinate of (0.31, 0.35). Further, theoretical calculations and experimental optimizations were carried out to reduce the red-light doping concentration and increase the green-light doping ratio to realize standard white-light (0.33, 0.33) OLED devices.