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:
Sep. 03, 2024
Filed:
Dec. 14, 2022
Seiko Epson Corporation, Tokyo, JP;
Takehiko Kubota, Matsumoto, JP;
Hitoshi Ota, Shiojiri, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A pixel circuit provided corresponding to a scanning line and a data line includes a transistor and an OLED serving as one example of a light emitting element. In a compensation period, a gate node and a drain node of the transistor are electrically coupled to each other to cause a voltage of the gate node of the transistor to be a voltage corresponding to a threshold voltage. In the gate writing period, a voltage of the gate node of the transistor is varied from a voltage corresponding to the threshold voltage into a voltage corresponding to luminance of the OLED, and the voltage corresponding to luminance of the OLED is applied to the drain node of the transistor.