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:
Aug. 31, 2021
Filed:
Aug. 07, 2017
Sharp Kabushiki Kaisha, Sakai, JP;
Youzou Kyoukane, Sakai, JP;
Hisashi Watanabe, Sakai, JP;
Hirotoshi Yasunaga, Sakai, JP;
Ryuzo Yuki, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
The light input efficiency of a light-emitting device into a circular disc-shaped or elliptical disc-shaped light guide plate is increased. A light-emitting device includes a first light-emitting unit () that includes a plurality of light-emitting elements (Lto L) arranged curvilinearly, a second light-emitting unit () that includes a plurality of light-emitting elements (Lto L) arranged curvilinearly, and a coupling portion () that is disposed so as to coincide with a region (SA) sandwiched by the first and second light-emitting units and couples the first and second light-emitting units.