Patent ID: 9627455
Date: 2017-04-18
CPC Classifications: G06F,G09G,H01L

Claim:
1. A touch display driving circuit comprising a driving transistor, a touch sensing unit and a compensation driving unit, wherein the driving transistor is configured to drive a pixel display element to perform the displaying of the pixel; the touch sensing unit is configured to receive a touch control signal, and to control the compensation driving unit to drive the driving transistor to perform the displaying of the pixel according to the received touch control signal; and the compensation driving unit is configured to drive the driving transistor to perform the displaying of the pixel, and to adjust a gate-source voltage of the driving transistor as driving the driving transistor to perform the displaying of the pixel, so that a compensation amount of the gate-source voltage and a threshold voltage are counteracted, wherein the compensation driving unit comprises a first switch transistor and a voltage-regulating module; a gate of the first switch transistor is connected to a first control line, a first electrode of the first switch transistor is connected to a data line, and a second electrode of the switch transistor is connected to the voltage-regulating module; a gate of the driving transistor is connected to the voltage-regulating module, a first electrode of the driving transistor is connected to the voltage-regulating module, and a second electrode of the driving transistor is connected to the voltage-regulating module; and the voltage-regulating module is connected to a first power supply and the first control line, and is further connected to the touch sensing unit; the touch sensing unit is connected to a third power supply.