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.

Date of Patent:
Oct. 31, 2023

Filed:

May. 21, 2020
Applicant:

Sharp Kabushiki Kaisha, Sakai, JP;

Inventors:

Tatsuya Kawasaki, Sakai, JP;

Tohru Daitoh, Sakai, JP;

Hajime Imai, Sakai, JP;

Hideki Kitagawa, Sakai, JP;

Yoshihito Hara, Sakai, JP;

Masaki Maeda, Sakai, JP;

Yoshiharu Hirata, Sakai, JP;

Teruyuki Ueda, Sakai, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
H01L 27/1288 (2013.01); H01L 27/124 (2013.01); H01L 27/1262 (2013.01);
Abstract

The present invention has an object to reduce the number of necessary masks to reduce manufacturing cost. A method of manufacturing a display device includes: forming electrodes or first lines; forming a first insulating film covering the electrodes or the first lines; forming a second insulating film covering the first insulating film; collectively forming first contact holes through the first insulating film and the second insulating film so as to expose parts of the electrodes or parts of the first lines; planarizing a surface of the second insulating film; and forming a first conductive layer to be connected from the surface of the second insulating film to the exposed parts of the electrodes or the exposed parts of the first lines via the first contact holes.


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