18.3: Invited Paper: Efficiency Enhanced Top‐Emitting Organic Light‐Emitting Diodes Comprising Micro‐lens Array

We report a highly enhanced light extraction from a top emission organic light emitting diode with little image blurring. Integration of a high refractive index micro lens array on the top of the transparent indium zinc oxide top electrode of a green and blue OLED shows a significant EQE gain of 16% and 8%, respectively.