Invention Grant
- Patent Title: Touch controller, touch screen driving circuit comprising the same, and method of operating touch screen driving circuit
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Application No.: US17528722Application Date: 2021-11-17
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Publication No.: US11842013B2Publication Date: 2023-12-12
- Inventor: Yunrae Jo , Yoon-Kyung Choi , Jinbong Kim
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Priority: KR 20200154702 2020.11.18
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044 ; G09G3/3225

Abstract:
A touch screen driving circuit for driving a touch screen which includes a display layer and a touch sensor layer on the display layer is provided. The touch screen driving circuit includes: a touch controller configured to provide a plurality of drive signals respectively to a plurality of first electrodes of the touch sensor layer, in a driving period, wherein the plurality of drive signals are phase synchronized during a first sub-period of the driving period; and a display driving circuit configured to provide a compensation signal to at least some of a plurality of source lines of the display layer in the first sub-period of the driving period, wherein the plurality of compensation signals are phase synchronized opposite to the plurality of drive signals in the first sub-period.
Public/Granted literature
Information query