A highly efficient organic light‐emitting diode with an imprinted in‐cell polarizer for backlight applications

Abstract A highly efficient organic light‐emitting diode (OLED) with an in‐cell polarizer made of an imprinted liquid crystalline polymer (LCP) layer doped with dichroic dye molecules is presented. The in‐cell polarizer was found to be capable of effectively polarizing the emission light of the OLED and of significantly improving the luminance through the periodic microstructures fabricated using an imprinting method. This type of OLED with an imprinted in‐cell polarizer is useful for efficient light source applications in liquid crystal displays (LCDs).