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:
Nov. 16, 2021
Filed:
Jul. 29, 2020
National Sun Yat-sen University, Kaohsiung, TW;
Tsung-Hsien Lin, Kaohsiung, TW;
Cheng-Chang Li, Kaohsiung, TW;
Heng-Yi Tseng, Kaohsiung, TW;
Hung-Chang Jau, Kaohsiung, TW;
Li-Min Chang, Kaohsiung, TW;
Kuan-Wu Lin, Kaohsiung, TW;
NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung, TW;
Abstract
A transmittable lighting device is provided. The transmittable lighting device includes two substrates, a transmittable layer, two polarizers and a light source. The two substrates are respectively electrically connected to a voltage supply. A switchable electric field is provided between the two substrates, and two alignment directions of the two substrates are orthogonal to each other. The transmittable layer is located between the two substrates and has a plurality of liquid crystal molecules. Each of the plurality of liquid crystal molecule is arranged along the alignment direction of the substrate nearby, and the plurality of liquid crystal molecules is arranged in a 90-degree twisted arrangement. The two polarizers are located at two outer surfaces of the two substrates, respectively. Each polarizer has a polarization direction parallel to the alignment direction of the substrate on the same outer surface. The light source emits a lateral light entering the transmittable layer laterally.