ORGANIC LIGHT EMITTING DIODE DISPLAY

摘要

PURPOSE: An organic light emitting diode display is provided to reduce a compensation time by increasing the accuracy of the deterioration deviation of an organic light-emitting diode. CONSTITUTION: In an organic light emitting diode display, a reference voltage is provided to a first input node(A1) of a first OP- AMP(1231A) during a first period(CT1). The electrical potential of the second input terminal of the first OP-AMP is a reference voltage. The reference voltage charges the anode terminal of the first organic light-emitting diode. . The first and second mirror TFTs(MT1B,MT2B) of a second current mirror(1232B) are turned on. A current is applied to a second voltage conversion portion(121B).