A display device comprising: a display region comprising a plurality of picture elements, wherein each of the plurality of picture elements has pixels (1901, 1902, 1903, 1904, 1905, 1906, 1907), each pixel having a color element including a light-emitting element, and each of the plurality of picture elements comprises: a first pixel and a second pixel each comprising a light-emitting element, 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 light-emitting element, 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 light-emitting element, 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; and wherein the light-emitting elements provided in the fifth pixel and the sixth pixel have different emission spectrums from each other, and characterized in that the each picture element includes a light-emitting element which emits white light, and the first pixel and the second pixel have light-emitting regions with different area dimensions from each other; the third pixel and the fourth pixel have light-emitting regions with different area dimensions from each other; and the fifth pixel and the sixth pixel have light-emitting regions with different area dimensions from each other. a display region comprising a plurality of picture elements, wherein each of the plurality of picture elements has pixels (1901, 1902, 1903, 1904, 1905, 1906, 1907), each pixel having a color element including a light-emitting element, and each of the plurality of picture elements comprises: a first pixel and a second pixel each comprising a light-emitting element, 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 light-emitting element, 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 light-emitting element, 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; and wherein the light-emitting elements provided in the fifth pixel and the sixth pixel have different emission spectrums from each other, and characterized in that the each picture element includes a light-emitting element which emits white light, and the first pixel and the second pixel have light-emitting regions with different area dimensions from each other; the third pixel and the fourth pixel have light-emitting regions with different area dimensions from each other; and the fifth pixel and the sixth pixel have light-emitting regions with different area dimensions from each other. a first pixel and a second pixel each comprising a light-emitting element, 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 light-emitting element, 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 light-emitting element, 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; and wherein the light-emitting elements provided in the fifth pixel and the sixth pixel have different emission spectrums from each other, and characterized in that the each picture element includes a light-emitting element which emits white light, and the first pixel and the second pixel have light-emitting regions with different area dimensions from each other; the third pixel and the fourth pixel have light-emitting regions with different area dimensions from each other; and the fifth pixel and the sixth pixel have light-emitting regions with different area dimensions from each other.