Patent ID: 9740320
Date: 2017-08-22
CPC Classifications: G06F,G09G,H01L

Claim:
1. A pixel circuit comprising a pixel compensation module, a light emitting module and a touch detection module, wherein the pixel compensation module is connected to a first to a fourth scan signal lines, a first operation voltage, a data voltage and the light emitting module respectively, and is configured to control the light emitting module to emit light for display in accordance with inputs from the scan signal lines; the touch detection module comprises a detection sub module and an output sub module, the detection sub module is connected to the second scan signal line, a second operation voltage and the data voltage respectively, and is configured to detect a touch signal; the output sub module is connected to the third scan signal line, a touch signal read line and the detection sub module, and is configured to output a touch detection signal to the touch signal read line in accordance with an input from the third scan signal line; wherein the second operation voltage is used to provide a driving pulse; wherein the light emitting module comprises an electroluminescent element connected to the pixel compensation module; wherein the pixel compensation module comprises a first to a sixth switch units, a pixel driving unit and an energy storage unit; and wherein the first switch unit is connected between the first operation voltage and an input terminal of the pixel driving unit, a control terminal of the first switch unit is connected to the fourth scan signal line; the second switch unit is connected to the energy storage unit and the fifth switch unit in cascade sequentially, wherein one terminal of the second switch unit is grounded and the other terminal of the second switch unit is connected to a first terminal of the energy storage unit; one terminal of the fifth switch unit is connected to a second terminal of the energy storage unit and the other terminal of the fifth switch unit is connected to an output terminal of the pixel driving unit, and control terminals of the second switch unit and the fifth switch units are both connected to the third scan signal line; the third switch unit is connected between the first terminal of the energy storage unit and the data voltage, the sixth switch unit is connected between the output terminal of the pixel driving unit and the electroluminescent element, and control terminals of the third switch unit and the sixth switch unit are both connected to the first scan signal line; one terminal of the fourth switch unit is connected to the second terminal of the energy storage unit, the other terminal of the fourth switch unit is grounded, and a control terminal of the fourth switch unit is connected to the second scan signal line; and a control terminal of the pixel driving unit is further connected to the second terminal of the energy storage unit.