Patent ID: 7872617

Claim:
A display apparatus comprising: a matrix display unit including light-emitting devices that emit light of one of a plurality of colors with a brightness corresponding to a current and pixel circuits that drive the light-emitting devices, the light-emitting devices and the pixel circuits being arranged in rows and columns; a plurality of column control circuits that receive input image signals and generate and output current-data signals; and a plurality of data lines each provided for each column of the matrix display unit to transfer the current-data signal output from the column control circuit to one of the pixel circuits in the column, wherein the light-emitting devices have different current-luminance efficiencies depending on colors of emitted lights, wherein the plurality of data lines are divided into sets of data lines, each set of data lines transferring the current-data signals of the plurality of colors to the pixel circuits, and the number of data lines in the set of data lines being equal to the number of colors, wherein one set of the column control circuits, comprised of a number which is larger than a number of colors of the display unit, is provided for one set of the data lines, comprised of a number which is equal to the number of colors, and wherein the number of column control circuit units connected to the data line for transferring the current-data signal to the pixel circuit for driving the light-emitting device of a color having a smallest current-luminance efficiency among the data lines included in one set of the data lines in each of the data line sets and which output a sum of the current-data signals, is larger than the number of the column control circuits connected to the data line for transferring the current-data signal to the pixel circuit for driving the light-emitting device of a color having a largest current-luminance efficiency and which output the current-data signals.