Patent ID: 8587000
Filing Date: 2013-11-19
Classification: H01L

Abstract:
1. A light-emitting element comprising: a cathode; an anode; and a light-emitting section disposed between the cathode and the anode and which includes a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer, the light-emitting layers each containing: (1) a corresponding one of luminescent materials configured to emit light of different colors, and (2) a plurality of host materials configured to support the luminescent materials, wherein: the first, second, and third light-emitting layers commonly include a first host material of the host materials, the first light-emitting layer being configured to emit light of a first color having a longer wavelength as compared to light emitted from the second and third light-emitting layers and includes a second host material of the host materials and which is different from the first host material, the second host material being only present in the first light-emitting layer, and the second host material being superior in enhancing the luminescence of the first light-emitting layer as compared to the first host material.