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. 03, 2024
Filed:
Oct. 23, 2019
Sharp Kabushiki Kaisha, Sakai, JP;
Seiichi Uchida, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
In a display device including scanning lines, light emission control lines, data lines, pixel circuits, and a drive circuit that drives the scanning lines, the light emission control lines, and the data lines, the pixel circuit includes a light-emitting element and a drive transistor that controls the amount of current flowing through the light-emitting element. The drive circuit has a monitoring mode, and during a frame period in the monitoring mode, the drive circuit sets non-light-emission periods, which are sequentially delayed and have the same length, for rows of the pixel circuits, selects a row to be measured from among the rows of the pixel circuits as a monitoring row, sets a monitoring period that partially overlaps a non-light-emission period of the monitoring row, and measures characteristics of light-emitting elements or drive transistors in pixel circuits in the monitoring row during the monitoring period.