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:
Sep. 20, 2016
Filed:
May. 08, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Seung Hun Chae, Daejeon, KR;
Belyaev Sergey, Daejeon, KR;
Byoung Kun Jeon, Daejeon, KR;
Moon Soo Park, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 5/32 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); G02B 5/32 (2013.01);
Abstract
An optical film including at least one retardation film and at least one isotropic layer made of an isotropic material, wherein the difference in average refractive between the retardation film and the isotropic layer is at least 0.1 or more is provided. A method of adjusting wavelength dispersion characteristics of an optical film including stacking an isotropic layer onto a retardation film, and a method for preparing optical films having a variety of wavelength dispersion characteristics by coating the retardation film with the isotropic layer are provided.