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:
Jan. 19, 2016
Filed:
Jun. 14, 2013
Lg Display Co., Ltd., Seoul, KR;
Chonbuk National University, Jeonju-si, KR;
Seunghee Lee, Jeonju-si, KR;
Jounho Lee, Daegu, KR;
Kyungki Kim, Gongju-si, KR;
Sanghoon Oh, Changbuk-ri, KR;
LG DISPLAY CO., LTD., Seoul, KR;
CHONBUK NATIONAL UNIVERSITY, Jeonju-Si, KR;
Abstract
A switchable Fresnel lens and a fabrication method thereof are disclosed. The switchable Fresnel lens comprises: an upper plate having a first electrode; a lower plate having a second electrode; and a lens cell comprising a liquid crystal layer sealed between the upper plate and the lower plate. The lens cell comprises a Fresnel lens formed by an electric field applied through the first and second electrodes, and having a discontinuous boundary. The lens cell comprises barrier ribs that are vertically formed between the upper plate and the lower plate at the discontinuous boundary of the Fresnel lens.