Invention Grant
- Patent Title: Touch display device and touch driving circuit
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Application No.: US17842250Application Date: 2022-06-16
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Publication No.: US11768559B2Publication Date: 2023-09-26
- Inventor: SeungRok Shin , Sangkyu Kim , DeukSu Lee
- 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: Fenwick & West LLP
- Priority: KR 20210086106 2021.06.30
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044

Abstract:
A touch display device and a touch driving circuit are configured to drive at least one of the plurality of first touch electrode lines disposed in a first area with a first touch driving signal having a first touch driving frequency, and drive at least one of the plurality of second touch electrode lines disposed in a second area with a second touch driving signal having a second touch driving frequency that is different from the first touch driving frequency. Each of the first touch driving frequency and the second touch driving frequency is different from a display driving frequency related to display driving. to the touch display device reduces the influence of noise, increases the signal-to-noise ratio, and reduces the influence of driving the display, thereby improving the touch sensitivity.
Public/Granted literature
- US20230004274A1 Touch Display Device and Touch Driving Circuit Public/Granted day:2023-01-05
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