Invention Grant
- Patent Title: Display apparatus including a touch driving circuit
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Application No.: US16503741Application Date: 2019-07-05
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Publication No.: US10942597B2Publication Date: 2021-03-09
- Inventor: Deog-Kyoon Jeong , Youngmin Park , Sangjin Pak , Jiheon Park , Jonghyun Oh , Sanghun Park
- Applicant: SAMSUNG DISPLAY CO., LTD. , SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
- Applicant Address: KR Yongin-si; KR Seoul
- Assignee: SAMSUNG DISPLAY CO., LTD.,SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
- Current Assignee: SAMSUNG DISPLAY CO., LTD.,SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
- Current Assignee Address: KR Yongin-si; KR Seoul
- Agency: F. Chau & Associates, LLC
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
A display apparatus includes a display panel, a touch sensing unit, and a touch driving circuit. The touch sensing unit includes a transmission touch line. The touch driving circuit provides a touch driving signal to the transmission touch line. The touch driving circuit may include a switch group and a control switch group. The switch group may include a plurality of switch devices, each of which has one end connected to the transmission touch line. The control switch group may be connected to the other end of at least a portion of the switch devices, include a plurality of control switch devices and a capacitor device, and receive a driving voltage and a ground voltage. The touch driving signal has N voltage levels, where N is a natural number of 3 or more.
Public/Granted literature
- US20200012375A1 DISPLAY APPARATUS INCLUDING A TOUCH DRIVING CIRCUIT Public/Granted day:2020-01-09
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