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:
Jan. 19, 2021
Sharp Kabushiki Kaisha, Sakai, JP;
Masahito Sano, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
The present application discloses a display device, such as an organic EL display device, which is of a current-driven type and is capable of displaying a satisfactory image free from perceivable flickering across all areas of the image even when pause drive is performed. Each pixel circuit is provided with a bias supply circuit, which includes a bias retention capacitor Cbs and a bias control transistor Tconnected in series with each other. In a pause drive mode, emission control lines and bias control lines are driven during both drive and pause periods. The bias control transistor is controlled through the bias control line such that in the drive period, a voltage of a data signal line Dj is written to a data retention capacitor Cst and simultaneously to the bias retention capacitor Cbs, whereas in the pause period, the voltage written in the bias retention capacitor Cbs is applied to a source terminal of a drive transistor during an on-bias application period within a non-emission period.