Patent ID: 7982385

Claim:
A display device comprising: a display region comprising a plurality of picture elements, wherein each of the plurality of picture elements comprises: a first pixel and a second pixel each comprising a first transistor, a second transistor, a light-emitting element electrically connected to the second transistor, the light-emitting element having a chromaticity whose x-coordinate in a CIE-XY chromaticity diagram is 0.50 or more, a third pixel and a fourth pixel each comprising a first transistor, a second transistor, a light-emitting element electrically connected to the second transistor, the light-emitting element having a chromaticity whose y-coordinate in the CIE-XY chromaticity diagram is 0.55 or more; and a fifth pixel and a sixth pixel each comprising a first transistor, a second transistor, a light-emitting element electrically connected to the second transistor, the light-emitting element having a chromaticity whose x-coordinate and y-coordinate in the CIE-XY chromaticity diagram are 0.20 or less and 0.25 or less, respectively; wherein the light-emitting elements provided in the first pixel and the second pixel have different emission spectrums from each other; wherein the light-emitting elements provided in the third pixel and the fourth pixel have different emission spectrums from each other; wherein the light-emitting elements provided in the fifth pixel and the sixth pixel have different emission spectrums from each other; wherein the first transistors provided in the first pixel and the second pixel are electrically connected to a first signal line, and the second transistors provided in the first pixel and the second pixel are electrically connected to a first power supply line; wherein the first transistors provided in the third pixel and the fourth pixel are electrically connected to a second signal line, and the second transistors provided in the third pixel and the fourth pixel are electrically connected to a second power supply line; and wherein the first transistors provided in the fifth pixel and the sixth pixel are electrically connected to a third signal line, and the second transistors provided in the fifth pixel and the sixth pixel are electrically connected to a third power supply line.