Patent ID: 11868564
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. A touch sensing system comprising:
a touch driving circuit configured to drive a plurality of touch electrodes; and
a touch controller configured to control the touch driving circuit,
wherein:
the touch controller is configured to output a system clock signal responsive to a certain time elapsing after a touch synchronization signal corresponding to a touch mode is output;
a first data communication period and a second data communication period occur before the system clock signal is output; and
during at least one of the first data communication period and the second data communication period, a level of a communication control signal, which is output by the touch controller and input to the touch driving circuit, is changed a plurality of times,
wherein, during the at least one of the first data communication period and the second data communication period in which the level of the communication control signal is changed the plurality of times, the touch controller is configured to transmit a data clock signal to the touch driving circuit while the communication control signal is at a low level and while the communication control signal is at a high level.