Invention Grant
- Patent Title: Image display apparatus
-
Application No.: US15236588Application Date: 2016-08-15
-
Publication No.: US10381528B2Publication Date: 2019-08-13
- Inventor: Kenichi Yoshimura , Shigetoshi Ito , Makoto Izumi , Masamichi Harada , Hiroshi Fukunaga , Naoto Hirosaki
- Applicant: Sharp Kabushiki Kaisha , National Institute for Materials Science
- Applicant Address: JP Sakai JP Ibaraki
- Assignee: SHARP KABUSHIKI KAISHA,NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Current Assignee: SHARP KABUSHIKI KAISHA,NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Current Assignee Address: JP Sakai JP Ibaraki
- Agency: Keating & Bennett, LLP
- Priority: JP2015-170275 20150831; JP2015-170276 20150831; JP2015-170277 20150831; JP2016-089385 20160427; JP2016-089386 20160427; JP2016-089387 20160427
- Main IPC: H01L33/50
- IPC: H01L33/50 ; C09K11/00 ; C09K11/08 ; C09K11/57 ; C09K11/61 ; G02F1/1335 ; G02F1/1337
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 Mn2+-activated γ-AlON phosphor that is a green phosphor; and a Mn4+-activated phosphor that is a red phosphor. The green light emitted by the Mn2+-activated γ-AlON phosphor has an emission-spectrum peak wavelength of not less than 518 nm and not more than 528 nm.
Public/Granted literature
- US20170062668A1 LIGHT EMITTING DEVICE AND IMAGE DISPLAY APPARATUS Public/Granted day:2017-03-02
Information query
IPC分类:
