Patent ID: 8183564

Claim:
A multicolor display apparatus, comprising: a red light emitting device; a green light emitting device; and a blue light emitting device, the red light emitting device, the green light emitting device, and the blue light emitting device each comprising: a substrate; a reflection electrode; a hole transport layer; an organic emission layer; and a light transmission electrode, the reflection electrode, the hole transport layer, the organic emission layer, and the light transmission electrode each being formed on the substrate in the stated order, wherein: the organic emission layer of the red light emitting device and the organic emission layer of the blue light emitting device each have electron transport property, and the organic emission layer of the green light emitting device has hole transport property; and the red light emitting device, the green light emitting device, and the blue light emitting device each have the same thickness from a reflection position of the reflection electrode to the organic emission layer, and have an optical distance (L) from the reflection position of the reflection electrode to the organic emission layer, the optical distance (L) satisfying 0.25×λR<L<0.75×λB, where λR is a peak wavelength of an emission spectrum of the red light emitting device, and λB is a peak wavelength of an emission spectrum of the blue light emitting device.