Patent ID: 11861089
Assignee: NOVATEK MICROELECTRONICS CORP.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A method for driving a touch display panel, wherein the touch display panel comprises a plurality of gate lines, a plurality of data lines, and a plurality of sensor pads, and the method comprising:
modulating a plurality of voltage signals on a first driving signal, a second driving signal, and a third driving signal during a sensing period;
providing the modulated first driving signal and the modulated second driving signal to a gate control circuit to drive the gate lines during the sensing period; and
driving the sensor pads with the modulated third driving signal during the sensing period, wherein the sensor pads are grouped into active sensor pads and non-active sensor pads, and the method further comprises:
sequentially transmitting the voltage signals to the touch display panel via modulation channels coupled to the non-active sensor pads; and
transmitting sensing signals to a determination circuit via modulation channels coupled to the active sensor pads.