Patent ID: 7800295
Filing Date: 2010-09-21
Classification: H01L

Abstract:
1. A device comprising: a first electrode; a second electrode; a third electrode; a first organic emissive layer disposed between the first electrode and the second electrode; and a second organic emissive layer disposed between the second electrode and the third electrode; wherein: the first electrode and the second electrode define a microcavity, said microcavity shifting the CIE coordinates of the emission of the first organic emissive layer such that the device emits light having a CIE of (0.33±0.05, 0.33±0.05); there are no electrodes between the first electrode and the second electrode; the second electrode and the third electrode define a standard OLED; the first organic emissive layer comprising a single first emissive material that emits in a first wavelength region, and the second organic emissive layer comprising a single second emissive material that emits in a second wavelength region, the first wavelength region being shorter than the second wavelength region; and the combination of the unshifted emission spectrum of the first emissive layer and the emission spectrum of the second emissive layers does not result in emitted light having a CIE of (0.33±0.05, 0.33±0.05).