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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 12405531 B1

PDFFull Text
Date of Patent:
Sep. 02, 2025

Filed:

Feb. 08, 2021

Organic el display device, production method for cured product, and production method for organic el display device

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Satoshi Kamemoto, Otsu, JP;

Yusuke Komori, Otsu, JP;

Kazuto Miyoshi, Otsu, JP;

Assignee:

TORAY INDUSTRIES, INC., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Douglas W Owens

Int. Cl.
CPC ...
G03F 7/023 (2006.01); G03F 7/039 (2006.01); G03F 7/38 (2006.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 71/40 (2023.01);
U.S. Cl.
CPC ...
G03F 7/0233 (2013.01); G03F 7/0392 (2013.01); G03F 7/38 (2013.01); H10K 59/122 (2023.02); H10K 71/00 (2023.02); H10K 71/40 (2023.02); H10K 59/1201 (2023.02);
Abstract

An organic EL display device includes a cured product of a photosensitive resin composition containing: an alkali-soluble resin (A) and a naphthoquinone diazide sulfonic acid ester compound (B). The cured product exhibits an intensity ratio I/Iof 0.0001 or more and 0.008 or less, where I(unit: counts) is a negative secondary ion intensity of sulfur, and I(unit: counts) is a sum total of negative secondary ion intensities of carbon, oxygen, fluorine, silicon and sulfur obtained by time-of-flight secondary ion mass spectrometry of the cured product. The cured product suppresses the generation of sulfur gas since a reduced amount of sulfur atoms is present. A cured film of the product may be used as a planarization layer or pixel division layer in an organic EL display device.

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Kamemoto, Satoshi. (2025). Organic el display device, production method for cured product, and production method for organic el display device (U.S. Patent No. 12405531). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12405531

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