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:
Apr. 21, 2025
Filed:
Jun. 25, 2020
SK Microworks Co., Ltd., Gyeonggi-do, KR;
Dae Seong Oh, Seoul, KR;
Jung Hee Ki, Gyeonggi-do, KR;
Sunhwan Kim, Incheon, KR;
Han Jun Kim, Gyeonggi-do, KR;
Jin Woo Lee, Seoul, KR;
Sang Hun Choi, Seoul, KR;
SK MICROWORKS CO., LTD., Gyeonggi-do, KR;
Abstract
Embodiments relate to a polyamide-imide film that has a clean appearance and transparency and is excellent in antiblocking properties, a process for preparing the same, and a display front panel and a display device comprising the same. The polyamide-imide film comprises a polyamide-imide polymer formed by polymerizing a diamine compound, a dianhydride compound, and a dicarbonyl compound; and a filler, wherein the dicarbonyl compound comprises a first dicarbonyl compound and a second dicarbonyl compound, the first dicarbonyl compound and the second dicarbonyl compound are structural isomers to each other, and the FH value of Equation 1 is 0.5 or less.