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:
Mar. 24, 2026
Filed:
Jun. 28, 2022
SK Microworks Co., Ltd., Gyeonggi-do, KR;
Microworks Solutions Co., Ltd., Chungcheongnam-do, KR;
Abstract
The embodiments provide a polyamide-based film, which comprises a polyamide-based polymer and has an RSRvalue of 3.4 m/N to 5.0 m/N as represented by the following Equation 1 based on the thickness of the film of 50 μm, and which is excellent in loop stiffness, static flexural characteristics, and folding characteristics while securing mechanical and optical properties at least a certain level, a process for preparing the same, and a cover window and a display device comprising the same. <Equation 1> RSR=(RSR+RSR)/2 In Equation 1, RSRis the loop stiffness value measured with the MD direction of the film as the longitudinal direction at room temperature, and RSRis the loop stiffness value measured with the TD direction of the film as the longitudinal direction at room temperature.