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.:
Date of Patent:
May. 09, 2023
Filed:
Dec. 07, 2021
Skc Co., Ltd., Gyeonggi-do, KR;
A Rim Yu, Gyeonggi-do, KR;
Gun Uk Kim, Gyeonggi-do, KR;
Sechul Lee, Gyeonggi-do, KR;
Sun Ki Lee, Gyeonggi-do, KR;
Sang Min Choi, Gyeonggi-do, KR;
Jin-Seok Park, Gyeonggi-do, KR;
Jung Won Yu, Gyeonggi-do, KR;
SKC CO., LTD., Gyeonggi-do, KR;
Abstract
A polyester-based film having excellent scratch resistance, durability, transparency, and visibility and a process for preparing the same. The polyester-based film comprises a base layer and a coating layer on at least one side of the base layer. The light passage according to Relationship 1 is 91% or more, or the total transmittance for light of 380 nm to 780 nm is 92% or more, it has excellent optical properties, durability, visibility, and reliability. Thus, it can be applied to display devices such as smartphones, tablet PCs, and laptops. In addition, in the polyester-based film according to an embodiment, the strain with respect to tensile load satisfies a specific range, whereby it is possible to achieve the flexibility that hardly causes deformation even when a certain load is maintained for a long period of time. Thus, it can be applied to flexible display devices, particularly, foldable display devices.