Patent ID: 8188500

Claim:
An organic light-emitting element comprising: a first electrode; a second electrode; and at least one organic compound layer disposed between the first electrode and the second electrode, the organic compound layer including a light-emitting layer containing a light-emitting material and being configured to emit light toward the first electrode and the second electrode, wherein light emitted from the light-emitting layer is intensified by interference of light in the organic light-emitting element, wherein the interference provides an interference intensity distribution having a maximum peak at a wavelength λ 1 , the light-emitting material of the light-emitting layer exhibits a photoluminescence spectrum having a maximum peak at a wavelength λ 2 , the organic light-emitting element produces an electroluminescence spectrum having a maximum peak at a wavelength λ 3 , and the wavelengths satisfy the relationships: λ 2 ≠λ 3 and |λ 2 −λ 3 |<|λ 2 −λ 1 |, and wherein chromaticity coordinates of an emission color of the organic light-emitting element are included within a circle with a center at (0.140, 0.080) and a radius of 0.080 in NTSC chromaticity coordinates.