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:
Nov. 11, 2025
Filed:
Oct. 10, 2024
Japan Display Inc., Tokyo, JP;
Hiroshi Yamaguchi, Tokyo, JP;
Japan Display Inc., Tokyo, JP;
Abstract
According to an aspect, a detection device includes: a sensor circuit including a plurality of sensor electrodes provided to a substrate, a peripheral electrode provided around a detection region provided with the sensor electrodes, and a shield electrode provided to a surface opposite to a surface provided with the sensor electrodes and the peripheral electrode; an AFE circuit configured to generate sensing data corresponding to a distance between the sensor electrodes and a proximity object, based on a detection signal acquired from the sensor electrodes; a drive signal generation circuit configured to generate a drive signal with a substantially sinusoidal waveform and supply the drive signal to the peripheral electrode and the shield electrode; and a control circuit configured to control the AFE circuit and the drive signal generation circuit. The control circuit controls an amplitude value of the drive signal based on the sensing data.