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:
Dec. 26, 2017
Filed:
Jan. 08, 2013
Lg Chem, Ltd., Seoul, KR;
Chan Oh Yoon, Cheongju-si, KR;
Jang Soon Kim, Seongnam-si, KR;
Min Seok Song, Anyang-si, KR;
Eun Kyung Park, Seoul, KR;
Bu Gi Jung, Anyang-si, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to an optical adhesive film which has excellent adhesive strength at room temperature and has improved efficiency in a rework process since peel strength is low at high temperatures. When attaching a touchscreen panel and an LCD by using the adhesive film of the present invention and separating the touchscreen panel and the LCD at high temperatures, the touchscreen panel and the LCD can be separated from each other without causing damage thereto. Additionally, the optical film of the present invention comprises two adhesive layers, wherein peeling occurs at the first adhesive layer having an adhesive composition such that a peeling surface can be controlled according to the convenience of a user.