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. 10, 2018
Filed:
Dec. 18, 2015
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Takeshi Masuda, Sakai, JP;
Ryuzo Yuki, Sakai, JP;
Hisashi Watanabe, Sakai, JP;
Shinya Kadowaki, Sakai, JP;
Mitsuhiro Murata, Sakai, JP;
Takeshi Ishida, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
A backlight device includes: optical members with a substantially circular profile, including a light guide plate, optical sheets, and a reflective sheet; a chassis (lamination member) disposed to overlap the light guide plate, the optical sheets, and the reflective sheet (optical members); and positioning structures. The positioning structures are provided on the light guide plate, the optical sheets, and the reflective sheet (optical members) and on the chassis (lamination member). The positioning structures have contact faces that come into contact with each other in the circumferential direction of the light guide plate, the optical sheets, and the reflective sheet (optical members), so as to position the light guide plate, the optical sheets, and the reflective sheet (optical member) relative to the chassis (lamination member) in the circumferential direction.