Patent ID: 7015647

Claim:
An organic EL panel drive circuit for current-driving organic EL display elements through terminal pins thereof, comprising: a first current mirror circuit including an input side transistor and a plurality of output side transistors provided correspondingly to said terminal pins, said first current mirror circuit responsive to a predetermined current supplied to said input side transistor for generating drive currents supplied to said terminal pins or base currents from which the drive currents supplied to said terminal pins are generated; a switch circuit provided in parallel with or in series with said input side transistor; memory means for storing a display data indicative of display luminous intensity of said organic EL elements driven by the currents through said terminal pins; and a control circuit for ON/OFF controlling said switch circuit to prevent said input side transistor from being driven by the predetermined current when the display data for one display line or for a part of the one display line corresponding to a horizontal scan direction stored in said memory means or a display data for one display line or for the part of the one display line to be stored in said memory means indicates that said organic EL elements are not to be driven by the drive currents.