Patent ID: 9728128
Date: 2017-08-08
CPC Classifications: G09G

Claim:
1. A pixel circuit, comprising: a first transistor, configured to respond to a first scanning line signal and to transmit a first signal voltage to a first electrode of a first capacitor; the first capacitor, configured to store the first signal voltage, wherein a second electrode of the first capacitor is connected to a gate electrode of a second transistor; an organic light emitting diode arranged between a sixth transistor and a second power supply voltage; the second transistor, configured to provide a drive current to the organic light emitting diode through the sixth transistor according to a potential at the gate electrode of the second transistor; wherein the second transistor is arranged between a first power supply voltage and the sixth transistor; a third transistor, configured to respond to a second scanning line signal and to transmit a first potential signal on the second scanning line signal to the second electrode of the first capacitor, wherein a gate electrode of the third transistor is configured to receive the second scanning line signal, a second electrode of the third transistor is connected to the gate electrode of the second transistor, and a third electrode of the third transistor is connected to the gate electrode of the third transistor; a fourth transistor, configured to respond to the first scanning line signal and to electrically connect a first electrode of the second transistor to a third electrode of the second transistor to form a diode connection of the second transistor, wherein the first power supply voltage is transmitted to the second electrode of the first capacitor through the second transistor; a fifth transistor, configured to respond to a third scanning line signal and to transmit a second signal voltage to the first electrode of the first capacitor, wherein the potential at the second electrode of the first capacitor changes in response to the second signal voltage being transmitted to the first electrode of the first capacitor; and the sixth transistor, configured to respond to a light emitting scanning line signal, to receive the drive current of the second transistor, and to output the drive current to the organic light emitting diode.