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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.:

US 11348948 B1

PDFFull Text
Date of Patent:
May. 31, 2022

Filed:

Jul. 17, 2020

Manufacturing method of a display device

Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Akihiro Hanada, Tokyo, JP;

Yohei Yamaguchi, Tokyo, JP;

Hirokazu Watanabe, Tokyo, JP;

Isao Suzumura, Tokyo, JP;

Assignee:

JAPAN DISPLAY INC., Tokyo, JP;

Attorney:

Xsensus LLP

Primary Examiner:

Nikolay K Yushin

Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 27/00 (2006.01); H01L 29/00 (2006.01); H01L 27/12 (2006.01); G02F 1/1368 (2006.01); H01L 27/32 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/1225 (2013.01); G02F 1/1368 (2013.01); H01L 27/127 (2013.01); H01L 27/1237 (2013.01); H01L 27/1251 (2013.01); H01L 27/3244 (2013.01); G02F 1/13685 (2021.01); H01L 21/02164 (2013.01); H01L 21/02271 (2013.01); H01L 27/1218 (2013.01); H01L 27/1248 (2013.01);
Abstract

The purpose of the present invention is to realize the display device having thin film transistors of the oxide semiconductor of stable characteristics. An example of the concrete structure is that: A display device having a substrate including a display area, plural pixels formed in the display area, the pixel includes a first thin film transistor having an oxide semiconductor film, a first insulating film made of a first silicon oxide on a first side of the oxide semiconductor film, a second insulating film made of a second silicon oxide on a second side of the oxide semiconductor film, wherein oxygen desorption amount per unit area from the first insulating film is larger than that from the second insulating film, when measured by TDS (Thermal Desorption Spectrometry) provided M/z=32 and a measuring range in temperature is from 100 centigrade to 500 centigrade.

Find Patent Forward Citations

Hanada, Akihiro. (2022). Manufacturing method of a display device (U.S. Patent No. 11348948). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11348948

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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