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. 09, 2026
Filed:
Mar. 01, 2023
Magnolia White Corporation, Tokyo, JP;
Masashi Tsubuku, Tokyo, JP;
Takeshi Sakai, Tokyo, JP;
Kentaro Miura, Tokyo, JP;
Hajime Watakabe, Tokyo, JP;
Takaya Tamaru, Tokyo, JP;
Hiroshi Tabatake, Tokyo, JP;
Yutaka Umeda, Tokyo, JP;
MAGNOLIA WHITE CORPORATION, Tokyo, JP;
Abstract
A display device includes a light-emitting element; a first transistor and a second transistor connected in series between the light-emitting element and a driving power line; a third transistor electrically connected to a gate electrode of the first transistor; and a fourth transistor connected in parallel between a drain electrode of the first transistor and the light-emitting element, wherein a ratio of a channel width Wto a channel length Lof the first transistor (a W/Lratio) and a ratio of a channel width Wto a channel length Lof the second transistor (a W/Lratio) are larger than a ratio of a channel width Wto a channel length Lof the third transistor (a W/Lratio) and a ratio of a channel width Wto a channel length Lof the fourth transistor (a W/Lratio).