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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 11442201 B1

PDFFull Text
Date of Patent:
Sep. 13, 2022

Filed:

Apr. 01, 2019

Flexible display cover substrate

Applicant:

Microcosm Technology Co., Ltd., Tainan, TW;

Inventors:

Bo-Hung Lai, Tainan, TW;

Chih-Te Yen, Tainan, TW;

Tang-Chieh Huang, Tainan, TW;

Assignee:

Microcosm Technology Co., Ltd., Tainan, TW;

Attorney:

JCIPRNET

Primary Examiner:

Sheeba Ahmed

Int. Cl.
CPC ...
G02B 1/14 (2015.01); C08L 79/08 (2006.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C09D 5/22 (2006.01); C09D 7/41 (2018.01); C08F 292/00 (2006.01); H01L 27/32 (2006.01); H01L 51/52 (2006.01); C08J 7/046 (2020.01); G09F 9/30 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); C08J 7/046 (2020.01); C08L 79/08 (2013.01); C09D 5/22 (2013.01); C09D 7/41 (2018.01); G09F 9/301 (2013.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C08J 2379/08 (2013.01); C08L 2201/10 (2013.01); G02B 2207/101 (2013.01); G02B 2207/113 (2013.01);
Abstract

A flexible display cover substrate is provided, including a transparent polyimide film and a device protective layer. The device protective layer is formed by a hard coating layer disposed on at least one side of the transparent polyimide film, and the hard coating layer is composed of three or more reactive functional group compounds, an initiator, an elastic oligomer, a nano inorganic modified particle, and a fluorescent pigment. The flexible display cover substrate of the invention, after being folded by a radius of curvature of 1 mm, does not cause cracks on the surface of the hard coating layer or break the substrate, and the yellow index YI of the flexible display cover substrate is less than 2.0.

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