Patent ID: 9450209
Filing Date: 2016-09-20
CPC Classification: H01L

Claim Text:
1. A lighting device comprising: a first light-emitting element and a second light-emitting element, each of the first light-emitting element and the second light-emitting element comprising: an electrode having a reflective property; a stacked structure over the electrode having the reflective property, the stacked structure comprising: a first light-emitting layer over the electrode having the reflective property; wherein an optical path length between the electrode having the reflective property and the first light-emitting layer is one-quarter of a peak wavelength of an emission spectrum of the first light-emitting layer, wherein an optical path length between the electrode having the reflective property and the second light-emitting layer is three-quarters of a peak wavelength of an emission spectrum of the second light-emitting layer,