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:
Jun. 29, 2021
Filed:
Jul. 29, 2020
Sharp Kabushiki Kaisha, Osaka, JP;
Tong Lu, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A pixel circuit for a display device provides enhanced performance by performing drain-side initialization and data programming with respect to the drive transistor. The pixel circuit is operable in an initialization phase, a combined threshold compensation and data programming phase, and an emission phase, the pixel circuit including a drive transistor configured to control an amount of current to a light-emitting device during the emission phase depending upon a voltage applied to a gate of the drive transistor, and the drive transistor having a first terminal and a second terminal with the first terminal being electrically connected during the emission phase to a first voltage supply line that supplies a driving voltage. The second terminal of the drive transistor is electrically connected to a data voltage supply line that supplies a data voltage during the initialization phase and the combined threshold compensation and data programming phase to compensate a threshold voltage of the drive transistor and to program the data voltage.