公开(公告)号：US12293041B2

公开(公告)日：2025-05-06

申请号：US18362878

申请日：2023-07-31

Applicant: LG Display Co., Ltd.

Inventor： Kil Tae Kim ,  Sung Su Han

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20 ,  G09G3/36

Abstract: The present disclosure provides a display device having a touch sensor, which includes a display panel including a touch sensor configured to display an image and sense presence or absence of a touch, a driver configured to time-division drive the display panel and the touch sensor, and a controller configured to control the driver, wherein the driver outputs a set voltage during a transition period between a display period in which an image is displayed on the display panel and a touch sensing period in which the touch sensor is sensed.

公开(公告)号：US11861111B2

公开(公告)日：2024-01-02

申请号：US17959118

申请日：2022-10-03

Applicant: LG Display Co., Ltd.

Inventor： Kil Tae Kim

IPC: G06F3/041

CPC classification number: G06F3/04184 ,  G06F3/04182 ,  G06F2203/04106

Abstract: A touch sensing display device and a driving method thereof for improving touch noise characteristics during moving image driving are discussed. The touch sensing display device can include a display panel including touch electrodes and subpixels defined by data lines and gate lines, and a timing controller configured to output an average data value and a touch synchronization signal in which display driving periods and touch driving periods are alternately time-divided, a touch controller configured to output a charge remover capacitance compensation value, a charge remover voltage compensation value, and a gain compensation value according to the average data value. Further, the touch sensing display device can include a power controller configured to output a charge remover voltage according to the charge remover voltage compensation value, and a touch driving circuit configured to sense a touch signal from each touch electrode and output a touch sensing value.