Invention Grant
- Patent Title: Touch display device, touch-driving circuit, and touch-sensing method
-
Application No.: US16216252Application Date: 2018-12-11
-
Publication No.: US10761633B2Publication Date: 2020-09-01
- Inventor: HyeongWon Kang , HongJu 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: Morgan, Lewis & Bockius LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@317b1241
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044 ; G06F3/0354 ; H01L27/32

Abstract:
A touch display device, a touch driving circuit, and a touch-sensing method are disclosed in which control operation timing at which a charge control circuit connected to an input terminal of a pre-amplifier is controlled in consideration of a difference in a location or time constant for each touch electrode. Accordingly, unnecessary variation in a signal-to-noise ratio for each touch electrode can be reduced, and thus touch sensitivity can be improved.
Public/Granted literature
- US20190204971A1 TOUCH DISPLAY DEVICE, TOUCH-DRIVING CIRCUIT, AND TOUCH-SENSING METHOD Public/Granted day:2019-07-04
Information query