Wide-Color Gamut OLED Technologies for High-Luminance Operation at High Temperature

We have developed OLED technologies for high-luminance and high-temperature operation with a wide color gamut. Specifically, we extended the lifetime of green and blue devices by increasing the amount of holes injection and improved the color shift of the red device by optimizing the internal emission spectrum and thickness. We applied these technologies to a 4.2-inch OLED prototype and found that the developed panels achieved a wide color gamut (100% of NTSC) with the high luminance of 800 nit and long lifetime of LT80 > 1000 hours at 85°C.