Patent ID: 7898164

Claim:
A self-emissive display device, comprising: a substrate having a pixel region to display a single primary color; and an organic electroluminescent multi-layer structure disposed in the pixel region of the substrate, comprising: a first micro-cavity portion, comprising an organic layer for light-emitting and a first film for determining light wavelength shift of the first micro-cavity portion; and a second micro-cavity portion adjacent to the first micro-cavity portion, comprising the organic layer for light-emitting and a second film for determining light wavelength shift of the second micro-cavity portion; wherein the first and second films have different optical lengths, such that the first and second micro-cavity portions provide opposite directions of the light wavelength shift, and wherein the first film is adjacent to the second film, the first film has a thickness the same as the second film, and the first film comprises a dielectric material different from the second film.