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. 03, 2019
Filed:
Oct. 18, 2017
Kyungpook National University Industry-academic Cooperation Foundation, Daegu, KR;
Jonghoo Park, Daegu-si, KR;
Jin Hyuk Bae, Daegu-si, KR;
Jihoon Jung, Daegu-si, KR;
Daekyeong Kang, Daegu-si, KR;
Abstract
A flexible liquid crystal Fresnel lens is provided that may realize a lens using a polymer thin film substrate, so that it may provide the same electro-optical characteristics irrespective of polarization of light incident on a lens, and provide flexible characteristics and high image quality. The flexible liquid crystal Fresnel lens includes a liquid crystal layer formed between an upper substrate and a lower substrate in which a Fresnel region pattern is formed, wherein the lower substrate and the upper substrate may respectively include a first substrate and a second substrate including a transparent and flexible material while having a birefringent index, optical axes of the lower substrate and the upper substrate may be perpendicular to each other, and optical axes respectively forming an angle of 45° with respect to the lower substrate and the upper substrate may be formed in the liquid crystal layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile