Patent ID: 11880524
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A control method, applied to a display touch device, wherein the display touch device comprises a display panel, a display touch driving circuit and a touch operation processing circuit, wherein the display panel includes a plurality of gate lines;
the touch operation processing circuit is configured to provide a first touch enable signal to the display touch driving circuit when it is detected that the display touch device is in a touch-only detection state, to control the display touch driving circuit to perform touch detection,
wherein the control method includes:
when the touch operation processing circuit detects that the display touch device is in the touch-only detection state, providing, by the touch operation processing circuit, the first touch enable signal to the display touch driving circuit to control the display touch driving circuit to perform touch detection,
wherein the display touch device further includes a power supply control circuit, a display power supply terminal, a touch power supply terminal and a power management module; the power management module is configured to supply power to the display touch driving circuit according to a power supply inputted by a voltage input terminal of the power management module; the control method further includes a power supply control step;
the power supply control step includes: when the display power supply terminal provides a display power supply voltage, controlling, by the power supply control circuit, to connect the display power supply terminal and the voltage input terminal; when the display power supply terminal does not provide the display power supply voltage and the touch power supply terminal provides a touch power supply voltage, controlling, by the power supply control circuit, to connect the touch power supply terminal and the voltage input terminal,
wherein the power supply control circuit includes a voltage dividing sub-circuit, a signal generation sub-circuit and a power supply control sub-circuit;
the power supply control step specifically includes:
when the display power supply terminal provides the display power supply voltage, dividing, by the voltage dividing sub-circuit, the display power supply voltage to generate and output a display working voltage through a display working voltage terminal;
generating and outputting, by the signal generating sub-circuit respectively, a control signal through the control signal output terminal according to the display working voltage, and when the display working voltage is greater than a first predetermined voltage, controlling, by the signal generating sub-circuit, the control signal to be a first voltage signal, and when the display operating voltage is less than the first predetermined voltage, controlling, by the signal generating sub-circuit, the control signal to be a second voltage signal;
when the control signal is the first voltage signal, controlling, by the power supply control sub-circuit, to connect the display power supply terminal and the voltage input terminal, and when the control signal is the second voltage signal, controlling, by the power supply control sub-circuit, to connect the touch power supply terminal and the voltage input terminal.