The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2021
Filed:
Jul. 05, 2019
Samsung Display Co., Ltd., Yongin-si, KR;
Seoul National University R&db Foundation, Seoul, KR;
Deog-Kyoon Jeong, Seoul, KR;
Youngmin Park, Gwangmyeong-Si, KR;
Sangjin Pak, Yongin-Si, KR;
Jiheon Park, Seoul, KR;
Jonghyun Oh, Seoul, KR;
Sanghun Park, Cheonan-Si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul, KR;
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.