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. 06, 2021
Filed:
Mar. 05, 2020
Funai Electric Co., Ltd., Osaka, JP;
Tatsuya Ito, Osaka, JP;
FUNAI ELECTRIC CO., LTD., Osaka, JP;
Abstract
A liquid crystal display device with high visibility and a backlight device for implementing the liquid crystal display device are provided. A backlight device () for irradiating light to a back surface of a liquid crystal panel () in a liquid crystal display deviceincludes: light sources (); a substrate (); and a plate-like optical member () through which a part of light emitted by the light sources () is transmitted. The optical member () includes: first region (A) and two or more second regions (A), wherein in the first region (A), the light transmittance increases as separating from a mounting position of one light source (), and in the second regions (A), the light transmittance increases as approaching an outer peripheral portion from a central portion of the optical member () in a predetermined direction in places in contact with another adjacent second region (A).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile