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:
Dec. 19, 2023
Filed:
Feb. 01, 2022
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Atsushi Hirai, Tokyo, JP;
Abstract
A display device includes a plurality of common electrodes. A second drive circuit supplies a touch drive signal to each of the plurality of common electrodes. A touch detection circuit performs detection of a touch by an object to the display device, based on a touch detection signal received from each of the plurality of common electrodes in one or more touch detection periods. A length of the one or more touch detection periods is a detection time. The touch detection circuit detects a noise at a frequency of the touch drive signal based on the touch detection signal. When the noise is detected, the control circuit changes the frequency of the touch drive signal to be lower than the frequency used when the noise is not detected and changes the detection time to be longer than the detection time used when the noise is not detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile