Patent ID: 8842112

Claim:
An image display device comprising: a plurality of pixel circuits, each pixel circuit having a light-emitting element that emits light corresponding to current flowing therethrough; a driving element that is connected to the light-emitting element and controls light emission of the light-emitting element; and a control unit that applies voltages for a reverse or forward bias to the driving element based on a threshold voltage of the driving element determined at a specific time and a predetermined threshold voltage when the light-emitting element does not emit light, the control unit configured to: apply a reverse bias voltage to an n-type driving element as a result of the determined threshold voltage of the n-type driving element at the specific time being equal to or higher than a first positive predetermined voltage level, apply a forward bias voltage to the n-type driving element as a result of the determined threshold voltage of the n-type driving element at the specific time being lower than a second positive predetermined voltage level, apply a reverse bias voltage to a p-type driving element as a result of the determined threshold voltage of the p-type driving element at the specific time being lower than a first negative predetermined voltage level, and apply a forward bias voltage to the p-type driving element as a result of the determined threshold voltage of the p-type driving element at the specific time being equal to or higher than a second negative predetermined voltage level, wherein the threshold voltage of the driving element included in the each pixel circuit becomes close to the predetermined threshold voltage.