Elimination of ambient light reflection color in automotive organic light emitting diode displays
Tae‐Hoon Choi, Jong‐Min Baek, Hyun Wook Lee, Jin Uk Ha
Abstract
A simple method for eliminating reflective color differences that depend on the viewing angle in automotive organic light emitting diode display panels is reported. A two-domain quarter-wave retarder is employed as one layer of the circular polarizer to compensate for the retardation resulting from the incident angles. The reflective color differences of the panel between normal and oblique directions can be completely eliminated in an ambient light environment because of the effects of the multidomain retarder. Additionally, the two-domain quarter-wave retarder induces a symmetric reflectance distribution on the viewing angles, resulting in outstanding reflective properties.
Topics & Concepts
PolarizerOpticsRetarderMaterials scienceReflection (computer programming)OptoelectronicsViewing angleLight-emitting diodeOblique caseDiodeOLEDReflectivityLayer (electronics)Liquid-crystal displayPhysicsBirefringenceComputer scienceNanotechnologyPhilosophyLinguisticsProgramming languageComposite materialColor Science and ApplicationsLiquid Crystal Research AdvancementsPhotochromic and Fluorescence Chemistry