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:
Oct. 03, 2023
Filed:
May. 03, 2021
SK Innovation Co., Ltd., Seoul, KR;
SK IE Technology Co., Ltd., Seoul, KR;
Hyeon Jeong Kim, Daejeon, KR;
Sang Yoon Park, Daejeon, KR;
SK Innovation Co., Ltd., Seoul, KR;
SK ie technology Co., Ltd., Seoul, KR;
Abstract
The present invention relates to a polyimide-based film, a window cover film, and a display panel including the same. More specifically, the present invention relates to a polyimide-based film having a difference (ΔI) between the maximum and minimum values of intensity in a thickness direction of 0.6 or less, when an aromatic ring peak of 1610 to 1630 cmwas measured by Raman spectroscopy in which an excitation wavelength is 532 nm, a laser spot is 1 to 2 μm, and a thickness direction measurement interval is 1 μm.