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:
Sep. 21, 2021
Filed:
May. 18, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
Beijing Boe Display Technology Co., Ltd., Beijing, CN;
Kan Zhang, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Beijing BOE Display Technology Co., Ltd., Beijing, CN;
Abstract
The present application provides a touch detection apparatus. The touch detection apparatus includes a square wave generating circuit configured to generate a first square wave signal having a frequency correlated to a magnitude of a mutual capacitance at a position at which touch occurrence status is to be determined; a frequency detecting circuit connected to the square wave generating circuit and configured to detect a first frequency of the first square wave signal; and a micro-processor connected to the frequency detecting circuit and configured to determine whether a touch has occurred based on the first frequency of the first square wave signal.