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:
Apr. 17, 2012
Filed:
Mar. 16, 2010
DO Yeon Kim, Busan-si, KR;
Hoon Kang, Gumi-si, KR;
Do Yeon Kim, Busan-si, KR;
Hoon Kang, Gumi-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
Disclosed is a selective reflection/transmission optical device including a cholesteric liquid crystal (CLC) film that selectively transmits a first light having a first circular polarization and reflects a second light having a second circular polarization; a first phase compensation film at the front of the CLC film that generates a phase difference of about λ/4 with respect to an incident light; and a second phase compensation film at the rear of the CLC film, for generating a phase difference of λ/4 with respect to an incident light; a controller for controlling the direction in which an image is displayed, and wherein the CLC film, the first phase compensation film, and the second phase compensation film are disposed in a light path of a dual display liquid crystal display device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile