Patent ID: 6876018

Claim:
An organic light-emitting diode (OLED) device having reduced ambient-light reflection comprising: a substrate; a metal reflective layer provided on said substrate; a transparent anode provided on said metal reflective layer; an organic layer provided on said transparent anode; a translucent electron-injecting cathode provided on said organic layer; a buffer layer provided on said translucent electron-injecting cathode; and a transparent electrode provided on said buffer layer; wherein the ambient-light illuminates said translucent electron-injecting cathode and said metal reflective layer to separately have a first reflected light and a second reflected light, wherein by adjusting the thickness of one or both of said organic layer and said transparent anode, said first reflected light and said second reflected light have a phase difference about 180 degrees and result in destructive interference so as to degrade the effect of reflected light caused by ambient-light and improve the visually perceived contrast of the emitted light.