Patent ID: 11907476
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The touch display device of claim 3, wherein the at least one touch electrode, a peripheral pattern adjacent to the at least one touch electrode, and the at least one corresponding sensing line electrically connecting the at least one touch electrode and the touch sensing circuit constitute a low pass filter,
wherein a cutoff frequency of the low pass filter is determined according to a capacitance between the at least one touch electrode and the peripheral pattern and according to a resistance of the at least one corresponding sensing line,
wherein the peripheral pattern includes at least one of the at least one the gate lines applied with the first driving signal, the at least one of the data lines applied with the second driving signal, and the one or more of the touch electrodes applied with the third driving signal, and
wherein the cutoff frequency of the low pass filter becomes smaller as a phase difference between at least one of the first, second and third driving signals and the touch driving signal is greater than zero.