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:
May. 25, 2021
Filed:
Jun. 07, 2019
Applicant:
Joled Inc., Tokyo, JP;
Inventors:
Assignee:
JOLED INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/14 (2006.01); H01L 27/12 (2006.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
H01L 27/124 (2013.01); H01L 27/1225 (2013.01); H01L 27/1248 (2013.01); H01L 27/1288 (2013.01); H01L 27/3276 (2013.01);
Abstract
A thin-film transistor substrate includes a pixel circuit, an interlayer insulating film, electrodes, and a hard mask metal. The pixel circuit includes a thin film transistor. The interlayer insulating film has contact holes and covers the pixel circuit. The electrodes are exposed above a surface of the interlayer insulating film, and electrically coupled to the pixel circuit via the contact holes. The hard mask metal has openings at portions facing the contact holes and is provided on the surface of the interlayer insulating film.