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:
Jan. 07, 2020
Filed:
Sep. 08, 2016
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Ryuzo Yuki, Sakai, JP;
Katsutoshi Kikuchi, Sakai, JP;
Hayato Nakamura, Sakai, JP;
Makoto Yoshimura, Sakai, JP;
Hiromi Enomoto, Sakai, JP;
Mitsuhiro Murata, Sakai, JP;
Hisashi Watanabe, Sakai, JP;
Hirotoshi Yasunaga, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A lighting device includes a light guide plate, a first light source, a second light source, and a case. The light guide plate includes plate surfaces and an outer peripheral surface. One of the plate surfaces is configured as a light exiting surface. Sections of the outer peripheral surface on opposite sides from each other relative to the center of the light exiting surface are configured as a first light entering surface and a second light entering surface, respectively. The first light source is disposed opposite the first light entering surface. The second light source is disposed opposite the second light entering surface. The case includes an annular wall portion surrounding an outer circumference of the light guide plate, the first light source, and the second light source. The annular wall portion includes light source non-disposing areas between the first light entering surface and the second light entering surface.