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. 13, 2019
Filed:
Aug. 15, 2016
Sharp Kabushiki Kaisha, Sakai-shi, Osaka, JP;
National Institute for Materials Science, Tsukuba-shi, Ibaraki, JP;
Kenichi Yoshimura, Sakai, JP;
Shigetoshi Ito, Sakai, JP;
Makoto Izumi, Sakai, JP;
Masamichi Harada, Tsukuba, JP;
Hiroshi Fukunaga, Sakai, JP;
Naoto Hirosaki, Tsukuba, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Ibaraki, JP;
Abstract
The present invention provides a light emitting device that makes it possible to provide an image display apparatus having a wide color reproduction range. The light emitting device includes a light emitting element that emits blue light; a Mn-activated γ-AlON phosphor that is a green phosphor; and a Mn-activated phosphor that is a red phosphor. The green light emitted by the Mn-activated γ-AlON phosphor has an emission-spectrum peak wavelength of not less than 518 nm and not more than 528 nm.