PIXEL REPAIR CIRCUIT AND ORGANIC LIGHT-EMITTING DIODE (OLED) DISPLAY HAVING THE SAME

摘要

A pixel repair circuit and organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, the pixel repair circuit includes an emission controller configured to control the emission current and a repair line initialization unit configured to initialize the repair line. The pixel repair circuit further includes a current mirror unit configured to provide a mirror current of the emission current to the repair line initialization unit, wherein the current mirror unit is connected between a power supply voltage and the emission controller. The pixel repair circuit also includes a first emission switch configured to control an electrical connection between the emission controller and the current mirror unit based on an emission control signal and a second emission switch configured to control an electrical connection between the emission controller and the repair line based on the emission control signal.

主权项

1. A pixel repair circuit that provides an emission current to an organic light-emitting diode (OLED) through a repair line, the circuit comprising:
an emission controller configured to control the emission current based on a scan signal and a repair data signal; a repair line initialization unit configured to initialize the repair line, wherein the repair line initialization unit is connected to a first node between the repair line and the emission controller; a current mirror unit configured to provide a mirror current of the emission current to the repair line initialization unit, wherein the current mirror unit is connected between a power supply voltage and the emission controller; a first emission switch configured to control an electrical connection between the emission controller and the current mirror unit based on an emission control signal; and a second emission switch configured to control an electrical connection between the emission controller and the repair line based on the emission control signal.