Patent ID: 7402951
Filing Date: 2008-07-22
Classification: H01L

Abstract:
1. An organic light-emitting diode (OLED) device comprising: a first electrode and a second transparent electrode having one or more organic layers formed there-between, at least one organic layer being light-emitting; and a contrast enhancement element formed on a side of the second transparent electrode opposite the organic layers, wherein the contrast enhancement element comprises a patterned reflective layer for reflecting emitted light and a corresponding lift-absorbing layer for absorbing ambient light, wherein the patterned reflective layer is located between the light-absorbing layer and the second transparent electrode and wherein the corresponding layers form one or more transparent openings though the reflective and light-absorbing layers so that light emitted by the light-emitting organic layer passes through the transparent openings, and wherein the one or more transparent openings through the reflective and light-absorbing patterned layers include holes.