Patent ID: 11966534
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 4:
5. A touch display device, comprising:
a transistor disposed on a substrate, and including a gate electrode, a source electrode, a drain electrode and a semiconductor layer;
an emitting device and a bank disposed on the transistor;
an encapsulation disposed on the emitting device and the bank;
a plurality of touch electrode lines disposed on the encapsulation including a plurality of X-touch electrode lines disposed in a first direction and a plurality of Y-touch electrode lines disposed in a second direction different from the first direction;
a color filter disposed on the plurality of touch electrode lines, or disposed between the encapsulation and the plurality of touch electrode lines; and
a touch driving circuit configured to:
drive the plurality of X-touch electrode lines and the plurality of Y-touch electrode lines during divided periods of one sensing unit period in a first touch sensing mode,
drive X-touch electrode lines of a first group of the plurality of X-touch electrode lines during a first period and remaining X-touch electrode lines of a second group of the plurality of X-touch electrode lines during a second period, and
drive all of the plurality of Y-touch electrode lines simultaneously in a remaining period except for the first period and the second period in the sensing unit period,
wherein a number of all channels driving the plurality of X-touch electrode lines is more than a number of channels driving the plurality of Y-touch electrode lines,
wherein the first period and the second period are time-divided, and
wherein the touch driving circuit does not drive the remaining X-touch electrode lines of the second group of the plurality of X-touch electrode lines during the first period, the touch driving circuit does not drive the X-touch electrode lines of the first group of the plurality of X-touch electrode lines during the second period.