Invention Grant
- Patent Title: Touch sensing display device and driving method thereof
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Application No.: US17959118Application Date: 2022-10-03
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Publication No.: US11861111B2Publication Date: 2024-01-02
- Inventor: Kil Tae Kim
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG DISPLAY CO., LTD.
- Current Assignee: LG DISPLAY CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR 20210194603 2021.12.31
- Main IPC: G06F3/041
- IPC: G06F3/041

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.
Public/Granted literature
- US20230214059A1 TOUCH SENSING DISPLAY DEVICE AND DRIVING METHOD THEREOF Public/Granted day:2023-07-06
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