Title:
TOUCH SENSING CIRCUIT AND TOUCH SENSOR COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/114427
Kind Code:
A1
Abstract:
The present invention relates to a touch sensing circuit comprising: an amplification circuit for receiving a first sensing signal and a second sensing signal from a first touch electrode and a second touch electrode, respectively, and outputting a first output signal and a second output signal, the first touch electrode and the second touch electrode being positioned to be adjacent to each other; and a charge amplification unit for receiving the first output signal and the second output signal output from the amplification circuit, wherein the amplification circuit comprises: a first switching unit for alternately connecting a drain electrode of a first transistor and a drain electrode of a second transistor to a first output terminal and a second output terminal; and a second switching unit for alternately connecting a drain electrode of a third transistor and a drain electrode of a fourth transistor to the first output terminal and the second output terminal.
Inventors:
LEE MIN JAE (KR)
SEONG SI HEON (KR)
SEONG SI HEON (KR)
Application Number:
PCT/KR2021/007755
Publication Date:
June 02, 2022
Filing Date:
June 21, 2021
Export Citation:
Assignee:
ACONIC INC (KR)
GWANGJU INST SCIENCE & TECH (KR)
GWANGJU INST SCIENCE & TECH (KR)
International Classes:
G06F3/041; G06F3/044; H03K17/96
Foreign References:
| KR20180072042A | 2018-06-29 | |||
| KR20120078355A | 2012-07-10 | |||
| KR20110035047A | 2011-04-06 | |||
| KR102057050B1 | 2019-12-18 | |||
| JP2017191480A | 2017-10-19 | |||
| KR102256877B1 | 2021-05-27 |
Attorney, Agent or Firm:
KIM, Hyun Soo et al. (KR)
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