Patent ID: 8183561

Claim:
An organic light emitting device, comprising: an anode layer; a cathode layer; a first organic layer section disposed between the anode layer and the cathode layer, the first organic layer section having a first thickness arranged for emitting light in a color spectrum of a first wavelength distribution in a wavelength range; and a second organic layer section disposed between the anode layer and the cathode layer, the second organic layer section having a second thickness different from the first thickness arranged for emitting light in a color spectrum of a second wavelength distribution in said wavelength range, wherein the color spectrum of the first wavelength distribution has a first spectral width and the color spectrum of the second wavelength distribution has a second spectral width, and wherein a combined spectrum of the first wavelength distribution and the second wavelength distribution comprises a third spectral width broader than the first spectral width and broader than the second spectral width.