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:
Jan. 16, 2024
Filed:
Nov. 27, 2020
Sharp Kabushiki Kaisha, Sakai, JP;
Masashi Mayumi, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A display device including a touch panel implements touch detection with sufficient accuracy without reducing the accuracy of a compensation process that uses an external compensation scheme. A plurality of sensor electrodes for touch detection are divided into a plurality of blocks such that each block corresponds to pixel circuits in a plurality of consecutive rows and pixel circuits in a plurality of consecutive columns. A cathode electrode is divided so as to correspond to the plurality of blocks, and each of the divided cathode electrodes is shared by a corresponding plurality of organic EL elements. A touch panel controller applies a touch driving signal to sensor electrodes belonging to a block different from a block corresponding to pixel circuits that are targets for a characteristic detection process, during a current measurement period included in a period during which the characteristic detection process is performed.