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:
Feb. 11, 2025
Filed:
Jun. 04, 2019
Sakai Display Products Corporation, Sakai, JP;
Hiroyuki Ohta, Sakai, JP;
SAKAI DISPLAY PRODUCTS CORPORATION, Sakai, JP;
Abstract
A thin film transistorincludes: an active layerthat is supported on a substrateand includes a first regionS, a second regionD and a channel regionC located between the first region and the second region; a gate electrodethat is arranged so as to overlap with at least the channel region of the active layerwith a gate insulating layertherebetween; a source electrodeelectrically connected to the first regionS; and a drain electrodeelectrically connected to the second regionD, at least the channel regionC of the active layerhaving a layered structure that includes a first metal layer marranged on a lower oxide semiconductor layerand containing substantially no oxygen, and an upper oxide semiconductor layerarranged on the first metal layer m, wherein a thickness of the first metal layer mis smaller than a thickness of the lower oxide semiconductor layeror the upper oxide semiconductor