Patent ID: 7489074

Claim:
A microcavity OLED device that minimizes or eliminates color change at different viewing angles, comprising: a substrate having a front surface and a back surface; a light modulation thin film on said front surface of said substrate; a multi-layer mirror on said back surface of said substrate, wherein said multi-layer mirror is comprised of a plurality of layers, each of said plurality of layers is comprised of a non-absorbing material; a first electrode on said multi-layered first mirror, wherein said first electrode is substantially transparent; an emissive layer on said first electrode; and a second electrode on said emissive layer, wherein said second electrode is a mirror, wherein said multi-layer mirror and said second electrode form a microcavity that amplifies a particular wavelength that is in resonance with an optical length of said microcavity wherein said microcavity has an emission spectrum that changes in color as a function of a viewing angle, and wherein said light modulation thin film minimizes or eliminates said color change of said emission spectrum of said microcavity at different viewing angles.