Patent ID: 9287332
Filing Date: 2016-03-15
CPC Classification: H01L

Claim Text:
1. A light-emitting device comprising: a first light-emitting element including a first reflective electrode, a first transparent conductive layer being in contact with the first reflective electrode, an EL layer being in contact with the first transparent conductive layer, and a semi-transmissive and semi-reflective electrode being in contact with the EL layer; and a second light-emitting element including a second reflective electrode, the EL layer being in contact with the second reflective electrode, and the semi-transmissive and semi-reflective electrode in contact with the EL layer; wherein the EL layer includes a first light-emitting layer emitting light with a wavelength λ wherein, in the first light-emitting element, an optical path length from the first reflective electrode to the first light-emitting layer is 3λ wherein, in the second light-emitting element, an optical path length from the second reflective electrode to the second light-emitting layer is λ