Patent ID: 8866807

Claim:
A display device comprising: a display unit including a plurality of pixels each having an anode electrode and a cathode electrode; a power supplying unit configured to supply a high-side potential and a low-side potential to the display unit; a voltage measuring unit configured to measure an anode potential and a cathode potential of at least one representative pixel which is a predetermined one of the pixels; and an arithmetic circuit that calculates a voltage drop amount in the at least one representative pixel and feeds back the voltage drop amount to the power supplying unit, the voltage drop amount being an absolute value of a value obtained by subtracting the cathode potential corresponding to the low-side potential from the anode potential corresponding to a preset potential in a positive electrode of the power supplying unit, wherein the power supplying unit is configured to regulate the high-side potential with respect to the low-side potential, according to at least the anode potential and a potential difference between the low-side potential supplied by the power supplying unit to the display unit and the cathode potential of the at least one representative pixel measured by the voltage measuring unit, and supply the regulated high-side potential to the display unit, and the power supplying unit is configured to raise the high-side potential with respect to the low-side potential by a greater amount as the voltage drop amount is greater, and supply the raised high-side potential to the display unit.