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:
Jun. 08, 2021
Filed:
Dec. 18, 2019
Silicon Works Co., Ltd., Daejeon, KR;
Hee Jin Lee, Daejeon, KR;
Jae Hwan Lee, Daejeon, KR;
Jeong Kwon Nam, Daejeon, KR;
Kyu Tae Lee, Daejeon, KR;
Hyun Soo Chung, Daejeon, KR;
Jin Yoon Jang, Daejeon, KR;
Hee Ra Yun, Daejeon, KR;
Kyung Min Shin, Daejeon, KR;
Mun Seok Kang, Daejeon, KR;
SILICON WORKS CO., LTD., Daejeon, KR;
Abstract
Disclosed is a touch sensing device for preventing touch sensing performance from being reduced by a parasitic capacitance. The touch sensing device includes a plurality of buffers buffering a difference between a reference signal and a reception signal received from a touch electrode through a touch sensing line and generating first and second currents corresponding to a buffered signal, a plurality of current mirror unit respectively connected to the plurality of buffers, a plurality of filter circuits generating a first filter signal and a second filter signal by removing common noise included in a first output signal output from an ncurrent mirror unit of the plurality of current mirror units and a second output signal output from an (n−1)current mirror unit of the plurality of current mirror units, and a plurality of integrators respectively connected to the plurality of filter circuits.