Patent ID: 7834541
Filing Date: 2010-11-16
Classification: B82Y,H01L

Abstract:
1. An organic light-emitting diode (OLED) device, comprising: a light-emitting area of an OLED comprising a first electrode, a second transparent electrode, and one or more layers of organic light-emitting material formed between the electrodes; and a light-scattering layer, formed on a side of the transparent electrode opposite the one or more layers of organic light-emitting material, comprising transparent, light-scattering particles having a refractive index greater than or equal to 1.8 formed in a cavity, wherein the ratio of the volume of light-scattering particles to the volume of the light scattering layer is within the range of 0.55 to 0.75 over a majority of the light-emitting area.