Patent ID: 8053978

Claim:
An organic light emitting device structured to emit a plurality of lights of different predetermined wavelengths including two or more different primary color lights, the device comprising: a substrate; two or more first transflective members disposed on the substrate and within a first layer above the substrate; two or more pixel electrodes disposed within a second layer above the substrate and respectively over the respective two or more first transflective members; two or more first organic light emitting members disposed within a third layer above the substrate and respectively over the respective two or more pixel electrodes; two or more second transflective members disposed within a fourth layer above the substrate and respectively over the respective two or more first organic light emitting members; two or more second organic light emitting members disposed within a fifth layer above the substrate and respectively over the respective second transflective members; and a reflective common electrode disposed on the two or more second organic light emitting members, wherein at least a first resonant optical cavity having a respective first optical path length for a first predetermined wavelength of to be emitted light is defined by the reflective common electrode, by a one of the second organic light emitting members and by an underlying one of the second transflective members; and wherein at least a second resonant optical cavity having a respective second optical path length for a second predetermined wavelength of to be emitted light is defined by said underlying one of the second transflective members, by an underlying one of the first organic light emitting members and by an underlying one of the first transflective members, and wherein at least one of the first and second resonant optical cavities is an intensity and color purity enhancing cavity for the first predetermined wavelength of to be emitted light.