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:
Feb. 25, 2025

Filed:

Jun. 27, 2022
Applicants:

SK Innovation Co., Ltd., Seoul, KR;

SK IE Technology Co., Ltd., Seoul, KR;

Inventors:

Hyun Joo Song, Daejeon, KR;

Cheol Min Yun, Daejeon, KR;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/12 (2006.01); B32B 17/10 (2006.01); B32B 27/28 (2006.01); B32B 27/38 (2006.01); G02B 1/14 (2015.01);
U.S. Cl.
CPC ...
B32B 7/12 (2013.01); B32B 17/10 (2013.01); B32B 27/281 (2013.01); B32B 27/38 (2013.01); G02B 1/14 (2015.01); B32B 2250/02 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/412 (2013.01); B32B 2307/536 (2013.01); B32B 2307/732 (2013.01); B32B 2457/20 (2013.01); B32B 2457/202 (2013.01);
Abstract

Provided are a glass substrate protective film including an optically transparent adhesive layer; a polyimide-based shatter-proof layer formed on the optically transparent adhesive layer; and a hard coating layer formed on the polyimide-based shatter-proof layer. The hard coating layer and the optically transparent adhesive layer have a thickness of 5 to 20 μm, the polyimide-based shatter-proof layer has a thickness of 20 to 50 μm, the glass substrate protective film has an absolute value of a retardation in a thickness direction (R) of 2000 nm or less, and an adhesive strength when the optically transparent adhesive layer adheres to the glass substrate is 200 gf/in or more. A method for manufacturing the glass substrate laminate and a display panel including the glass substrate laminate are also provided.


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