NOVEL OLED DISPLAY ARCHITECTURE

摘要

The present invention is directed to a device comprising a first organic light emitting device that emits light having a peak wavelength in the visible spectrum of 600 - 700 nm, further comprising a first emissive layer having a first emissive material, wherein the first emissive material is phosphorescent; a second organic light emitting device that emits light having a peak wavelength in the visible spectrum of 500 - 600 nm, further comprising a second emissive layer having a second emissive material, wherein the second emissive material is phosphorescent; a third organic light emitting device that emits light having a peak wavelength in the visible spectrum of 400 - 500 nm, further comprising a third emissive layer having a third emissive material, wherein the third emissive material is phosphorescent; and a fourth organic light emitting device that emits light having a peak wavelength in the visible spectrum of 400 to 500 nm, further comprising a fourth emissive layer having a fourth emissive material, wherein the fourth emissive material is phosphorescent; wherein the peak wavelength in the visible spectrum of light emitted by the fourth organic light emitting device is at least 4 nm less than the peak wavelength in the visible spectrum of light emitted by the third organic light emitting device.