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. 26, 2018
Filed:
May. 04, 2017
Research & Business Foundation Sungkyunkwan University, Suwon-si, Gyeonggi-do, KR;
Sang Woo Kim, Yongin-si, KR;
Tae Ho Kim, Seoul, KR;
Usman Khan, Suwon-si, KR;
Han Jun Ryu, Suwon-si, KR;
Seung Choi, Ansan-si, KR;
Minki Kang, Suwon-si, KR;
Dong Hoon Kim, Daejeon, KR;
Wan Chul Seung, Yongin-si, KR;
RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si, Gyeonggi-Do, KR;
Abstract
The present disclosure provides a graphene-based touch sensor device using triboelectric effect, the device comprising: a substrate; a first electrode layer disposed on the substrate; a graphene channel layer disposed on the substrate, wherein the graphene channel layer is flush with the first electrode layer, and is spaced from the first electrode layer; a gate dielectric layer in partial contact with the electrode layer and the graphene channel layer respectively; source and drain electrodes formed on both opposing ends of the graphene channel layer respectively; and a triboelectric layer formed on the first electrode layer, wherein the triboelectric layer generates a triboelectric potential via contact of an external friction material therewith, wherein the contact of the external friction material is detected based on a current change in the graphene channel layer due to the triboelectric potential applied thereto.