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:
May. 25, 2021
Filed:
Aug. 19, 2019
Fujifilm Corporation, Tokyo, JP;
Megumi Sekiguchi, Kanagawa, JP;
Naoyoshi Yamada, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A light guide film that is bendable, has a strong resistance to impact, and can perform the adjustment of the brightness per region, and a backlight unit. The light guide film includes a plurality of optical units each of which includes a light guide portion and an emission portion; and a resin portion that is filled between the optical units adjacent to each other, in which the light guide portion guides light incident from a light source to the emission portion, the emission portion emits light guided and incident from the light guide portion from a light emission surface, the plurality of optical units are arranged in a plane direction of the light emission surfaces such that the light emission surfaces of the emission portions are parallel to each other, and the light guide portions and the emission portions are arranged in the plane direction of the light emission surfaces.