P‐14.20: ViP™ Based AMOLED with White‐Light Emission Angular Color Shift Less Than 1 JNCD

Angular color shift is one of the most intuitive performa nce for display users. In this study, we designed a set of org anic light‐emitting diodes (OLED) based on ViP™ structure with different optical structures for Red (R), Green (G), and Blue (B) devices, including thickness of cathode, capping laye r (CPL), and thin film encapsulation (TFE) layers. Based on this device configuration, the angular luminance decay (L‐dec ay) and CIExy of RGB possess larger freedom for tuning the white‐light color shift By optical simulation, we demonstrate d the effect of thickness on angular L‐decay and CIExy curv es of the key optical layers in RGB devices, where the catho de, CPL, TFE exhibited different variation at different viewin g angle. Importantly, we obtained an accurate simulation mo del for forecasting the white‐light angular color shift by our correction method Owing to the ViP™ structure, we finally obtained the white‐light color shift less than 1 JNCD (@30/4/60°, which was a rarely reported result Therefore, ViP ™ ba sed OLED structures exhibited great potential in application of full‐size AMOLED products with high quality display.