Patent ID: 7515123

Claim:
A display apparatus comprising: a board; a driving circuit mounted on the board in a display region; a coating film which coats the driving circuit; a display unit including a plurality of optical elements which are arrayed as pixels on the coating film in the display region, and which are driven by the driving circuit; a plurality of current lines; and a plurality of voltage source scan lines; wherein each of the optical elements comprises an organic electroluminescent element which includes a pair of electrodes and which emits light in a direction away from the board in accordance with a current that flows between the pair of electrodes, wherein the display further comprises, for each of the optical elements, a current storage circuit which stores current data corresponding to a value of a storage current which flows through one of the current lines during a selection period of the optical element and which supplies a display current having a value substantially equal to the value of the storage current to the optical element during a nonselection period of the optical element in accordance with the current data stored during the selection period, wherein the current storage circuit for each of the optical elements is connected to one of the voltage source scan lines, and a voltage to supply the display current to the optical element is output to the voltage scan lines, wherein one end of a current path of the current storage circuit is connected to the optical element, and the other end of the current path is connected to said one of the voltage source scan lines, wherein the driving circuit comprises a voltage source driver which applies a voltage to supply the storage current to the current storage circuit during the selection period through said one of the voltage source scan lines, and which applies the voltage to supply the display current to the optical element to the current storage circuit through said one of the voltage source scan lines during the nonselection period, so as to supply the display current having the value substantially equal to the value of the storage current, which has been supplied to the current storage circuit during the selection period, in accordance with the current data stored in the current storage circuit during the selection period, wherein one of the pair of electrodes of each of the optical elements is connected to the current storage circuit for the optical element, and the other is connected to a constant voltage source, and wherein the voltage outputted by the voltage source driver during the selection period is not more than a potential of the constant voltage source, and the voltage outputted by the voltage source driver during the nonselection period is not less than the voltage output during the selection period and more than the potential of the constant voltage source.