PIXEL CIRCUIT, DRIVING METHOD FOR THE SAME, AND DISPLAY DEVICE

摘要

The present disclosure relates to the art of display manufacture. There are provided a pixel circuit, a driving method for the same and a display device. The pixel circuit comprises a light-emitting device and a driving transistor connected in series between a first voltage signal terminal and a second voltage signal terminal, and the pixel circuit further comprises a light-emitting control module and a compensation module; the light-emitting control module has an input terminal connected to a first control signal, an output terminal connected to the source and the drain of the driving transistor, and the light-emitting module is configured to control the state of the driving transistor in response to the first control signal so that the light-emitting device emits light or is turned off; the compensation module has an input terminal connected to a second control signal, and an output terminal connected to the gate and the source of the driving transistor, and to the light-emitting control module, and the compensation module is configured to disconnect or connect the gate and the source of the driving transistor in response to the second control signal, so that the voltage at the gate of the driving transistor compensates for the threshold voltage of the driving transistor when the light-emitting device emits light. The issue of the poor uniformity of the light-emitting diode in luminance can be addressed by the above technical solutions.

主权项

1. A pixel circuit comprising a light-emitting device and a driving transistor for driving the light-emitting device connected in series between a first voltage signal terminal and a second voltage signal terminal, and the pixel circuit further comprising a light-emitting control module and a compensation module, wherein
the light-emitting control module has an input terminal connected to a first control signal, an output terminal connected to a source and a drain of the driving transistor, and is configured to control a state of the driving transistor in response to the first control signal to make the light-emitting device emit light or turn off the light-emitting device; the compensation module has an input terminal connected to a second control signal, and an output terminal connected to a gate and the source of the driving transistor, and to the light-emitting control module, and the compensation module is configured to disconnect or connect the gate and the source of the driving transistor in response to the second control signal, so that a voltage at the gate of the driving transistor compensates for a threshold voltage of the driving transistor when the light-emitting device emits light.