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:
Jun. 03, 2014
Filed:
Apr. 16, 2010
Applicants:
Kwangyeol Lee, Namyangju-si, KR;
Donghoon Choi, Seoul, KR;
Inventors:
Kwangyeol Lee, Namyangju-si, KR;
Donghoon Choi, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Compositions, structures and methods that relate to films having switchable reflectivity and anti-reflectivity depending on ambient conditions, such as temperature. A film with switchable reflectivity and anti-reflectivity includes a nanostructured first layer having nanopillars associated with nanowells. A hydrogel occupies at least a portion of the nanowells. As the hydrogel moves from a dehydrated state to a hydrated state, the surface of the film switches from being reflective to being anti-reflective in a repeatable and reversible process.