| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-efficiency white light-emitting element having a spectrum in a wide wavelength region, to provide a white light-emitting element whose white chromaticity is less likely to be changed over time, and to provide a white light-emitting element whose shape of a light emission spectrum is less likely to depend on a current density.SOLUTION: In a light-emitting device, a first light-emitting element 210 and a second light-emitting element 220 are stacked in series on a substrate 200. The first light-emitting element 210 has a structure having a light-emitting layer 212 between a first anode 211 and a first cathode 213, and the second light-emitting element 220 has a structure having a light-emitting layer 222 between a second anode 221 and a second cathode 223. Here, the light-emitting layer 212 has a first light emission spectrum 230 having peaks in both a blue-blue green region and a yellow-orange region, and the light-emitting layer 222 has a second light emission spectrum 240 having a peak in an orange-red region. |
