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:
Jun. 09, 2020
Filed:
Apr. 19, 2017
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Morimasa Kuge, Kobe, JP;
Takanori Kritoshi, Kobe, JP;
Osami Oogushi, Kobe, JP;
Hideyuki Tanaka, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Abstract
A light guide plate includes an incidence surface and an output surface. The incidence surface is an end surface on which light emitted from a light source is incident. The output surface is a surface from which incident light coming from the incidence surface is outputted, and is a plane orthogonal to a thickness direction. The incidence surface is at least partially curved toward the light source, when viewed in a cross-section cut along a plane parallel to both a thickness direction of the light guide plate and an arrangement direction in which the light source and the light guide plate are arranged.