PIXEL CIRCUIT AND ELECTROLUMINESCENT DISPLAY INCLUDING THE SAME

摘要

A pixel circuit and an electroluminescent display including the same are disclosed. In one aspect, the pixel circuit includes a scan transistor connected between a data line and a first node and having a gate electrode configured to receive a scan signal, a driving transistor connected between a first power supply voltage and a third node and having a gate electrode connected to a second node, an emission control transistor connected between the third node and a fourth node and having a gate electrode configured to receive an emission control signal, a light-emitting diode connected between the fourth node and a second power supply voltage less than the first power supply voltage, and a compensation circuit initializes the second node to an initial voltage during a first compensation period and electrically connects the second node to the third node during a second compensation period following the first compensation period.

主权项

1. A pixel circuit for an electroluminescent display, comprising:
a scan transistor connected between a data line and a first node and having a gate electrode configured to receive a scan signal; a first capacitor connected between a first power supply voltage and the first node; a second capacitor connected between the first node and a second node; a driving transistor connected between the first power supply voltage and a third node and having a gate electrode connected to the second node; an emission control transistor connected between the third node and a fourth node and having a gate electrode configured to receive an emission control signal; a light-emitting diode (LED) connected between the fourth node and a second power supply voltage less than the first power supply voltage; and a compensation circuit configured to i) initialize the second node to an initial voltage during a first compensation period and ii) electrically connect the second node to the third node during a second compensation period following the first compensation period.