- Patent Title: Display device having touch sensor and method for driving the same
-
Application No.: US17466818Application Date: 2021-09-03
-
Publication No.: US11861108B2Publication Date: 2024-01-02
- Inventor: Hyun Woo Jang , Ki Yong Kim , Jae Kyu Park , Young Woo Jo
- 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 20200186537 2020.12.29
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044

Abstract:
A display device having a touch sensor of the present disclosure includes a display panel including a plurality of touch electrodes, a touch sensing circuit configured to apply a touch driving signal to the touch electrodes and amplify charges flowing from the touch electrodes based on an amplifier reset signal so as to generate an amplifier output voltage, and an amplifier output control circuit configured to adjust at least one of a toggle timing of the amplifier reset signal and a voltage amplitude of the touch driving signal so as to differentially control a level of the amplifier output voltage depending on positions of the touch electrodes.
Public/Granted literature
- US20220206626A1 DISPLAY DEVICE HAVING TOUCH SENSOR AND METHOD FOR DRIVING THE SAME Public/Granted day:2022-06-30
Information query