Abstract: Drive switches 3b1 to 3bn selectively apply a constant current to any one of anode electrode lines 1A. Constant current sources 3a1 to 3an supply the constant current to anode electrode lines 1A, respectively, via drive switches 3b1 to 3bn. Scanning switches 2a1 to 2am selectively set any one of cathode electrode lines 1B to a ground potential and apply a reverse bias voltage to the other cathode electrode lines 1B. First temperature compensation means 5 is provided with the temperature detection means 5a for detecting an ambient temperature of organic EL devices E11 to Enm, and generates a first temperature compensation drive voltage VA obtained by changing a power supply voltage according to an output from the temperature detection means 5a and supplies the first temperature compensation drive voltage VA to the constant current sources 3a1 to 3an.

Abstract: It is an object of the present invention to provide a drive circuit for an organic light emitting diode which can suppress a fall in an intensity of light emission to extend the life of the organic light emitting diode. The present invention is a drive circuit for an organic light emitting diode which has plural anodes A1 to A3 and plural cathodes B1 to B4 intersecting while being opposed to each other and an organic layer having at least a light-emitting layer intervening between both the poles, sets one of both the poles as drive lines and the other of both the poles as scanning lines, and by scanning all of these scanning lines as one field at a predetermined frequency, presents light emission with the intersection portions as pixels E11 to E34. Capacitors C11 to C34 having a predetermined added capacity, to which a bias voltage Vr in a direction of canceling charges to be charged to a parasitic capacity of the pixels E11 to E34 is applied, are provided.

Abstract: Drive switches 3b1 to 3bn selectively apply a constant current to any one of anode electrode lines 1A. Constant current sources 3a1 to 3an supply the constant current to anode electrode lines 1A, respectively, via drive switches 3b1 to 3bn. Scanning switches 2a1 to 2am selectively set any one of cathode electrode lines 1B to a ground potential and apply a reverse bias voltage to the other cathode electrode lines 1B. First temperature compensation means 5 is provided with the temperature detection means 5a for detecting an ambient temperature of organic EL devices E11 to Enm, and generates a first temperature compensation drive voltage VA obtained by changing a power supply voltage according to an output from the temperature detection means 5a and supplies the first temperature compensation drive voltage VA to the constant current sources 3a1 to 3an.