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:
Oct. 21, 2025
Filed:
Oct. 12, 2022
Sharp Display Technology Corporation, Kameyama, JP;
Kazunari Sasaki, Kameyama, JP;
Kimihiko Hayashi, Kameyama, JP;
Ryuji Matsumoto, Kameyama, JP;
Takashi Terauchi, Kameyama, JP;
Sharp Display Technology Corporation, Kameyama, JP;
Abstract
A thin film transistor substrate includes a substrate and a bottom gate-type thin film transistor, in which a gate insulating film is provided, a gate electrode is made of a first conductive film disposed on a lower layer side of the gate insulating film, the gate insulating film includes a first insulating portion overlapping the gate electrode and a second insulating portion that is disposed not to overlap the gate electrode but to overlap the source electrode and the drain electrode, and has a film thickness greater than a film thickness of the first insulating portion, and a lower layer portion that is made of a lower layer film disposed on a lower layer side of the first conductive film and has at least a portion overlapping the gate electrode is provided.