公开(公告)号：US11526247B2

公开(公告)日：2022-12-13

申请号：US17350373

申请日：2021-06-17

Applicant: LG DISPLAY CO., LTD.

Inventor： HoonBae Kim ,  HyunWoo Jang ,  KiYong Kim ,  JaeKyu Park ,  Youngwoo Jo ,  SunChul Kim ,  SunYeop Kim ,  Seongkyu Kang

IPC: G06F3/044 ,  G06F3/041

Abstract: Embodiments of the present disclosure relate to a touch display device, a touch circuit and a touch driving method thereof, and more particularly, a touch display device, a touch circuit and a touch driving method thereof enable to reduce effectively a ghost phenomenon in touch electrode groups by dividing a plurality of touch electrodes into a plurality of touch electrode groups with same patterns. The touch display device may include a display panel including a touch electrode group in which a plurality of long touch electrodes with long length and a plurality of short touch electrodes with short length in a first direction are alternately arranged in a second direction; and a touch circuit sequentially performing a self-capacitance sensing operation and a mutual-capacitance sensing operation for the touch electrode group.