Patent ID: 8110826
Filing Date: 2012-02-07
Classification: H01L

Abstract:
1. An organic EL display device comprising: an insulative substrate; a pixel electrode which is disposed above the substrate and is disposed in each of first to third organic EL elements having different emission light colors; a first light emission layer which includes a first dopant material having a first absorbance peak in absorbance spectrum characteristics of the first dopant material, the first light emission layer extending over the first to third organic EL elements and being disposed above the pixel electrode; a second light emission layer which includes a second dopant material having a second absorbance peak in absorbance spectrum characteristics of the second dopant material, the second light emission layer extending over the first to third organic EL elements and being disposed above the first light emission layer; a third light emission layer which includes a third dopant material, the third light emission layer extending over the first to third organic EL elements and being disposed above the second light emission layer; a counter-electrode which extends over the first to third organic EL elements and is disposed above the third light emission layer; and a hole transport layer which is formed of a material having an absorbance bottom on a shorter wavelength side than the first absorbance peak of the first dopant material and the second absorbance peak of the second dopant material in absorbance spectrum characteristics of the hole transport layer, the hole transport layer extending over the first to third organic EL elements and being disposed between the pixel electrode and the first light emission layer, wherein the first dopant material in the first light emission layer of the second organic EL element is irradiated with light and is in an optical quenching state, and the first dopant material and the second dopant material in the first light emission layer and second light emission layer of the third organic EL element are irradiated with light and are in an optical quenching state.