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:
Jul. 21, 2026
Filed:
Feb. 07, 2025
Japan Display Inc., Tokyo, JP;
Takeo Koito, Tokyo, JP;
Kojiro Ikeda, Tokyo, JP;
Japan Display Inc., Tokyo, JP;
Abstract
A lighting system includes a light source, a liquid crystal cell for changing a light distribution angle of light emitted from the light source, and a control device for controlling a gradation of the light distribution angle. The control device includes a communication portion for receiving gradation information of the light distribution angle from an information communication terminal, a storage section for storing a weighting coefficient that associates a change in the light distribution angle with a change in the gradation of the light distribution angle, and a control section for calculating first to fourth voltages to be input to first to fourth transparent electrodes of the liquid crystal cell, based on the gradation information and the weighting coefficient.