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:
Mar. 03, 2020
Filed:
Nov. 29, 2018
Tianma Japan, Ltd., Kanagawa, JP;
Hidenori Ikeno, Kanagawa, JP;
TIANMA JAPAN, LTD., Kawasaki, JP;
Abstract
A light ray direction controlling device includes: a plurality of louver elements switching between a transparent state and a light absorption state in accordance with an applied voltage, and a plurality of polymer dispersed liquid crystal parts arranged along the primary surface of the substrate between the plurality of louver elements, respectively. The polymer dispersed liquid crystal parts each includes a solid polymer resin part and liquid crystal drops dispersed in the solid polymer resin part. The polymer dispersed liquid crystal parts each changes a degree of scattering of exiting light by changing a degree of scattering of incident light in accordance with an applied voltage.