Title:
PHOSPHOR, LIGHT-EMITTING DEVICE, LIGHTING DEVICE, IMAGE DISPLAY DEVICE, AND INDICATOR LAMP FOR VEHICLES
Document Type and Number:
WIPO Patent Application WO/2023/139823
Kind Code:
A1
Abstract:
Provided is a phosphor that has a favorable emission peak wavelength, a narrow spectral half width, and high light emission intensity. Also provided are: a light-emitting device that has favorable color rendering properties or color reproducibility, as well as favorable conversion efficiency; a lighting device; an image display device; and an indicator lamp for vehicles. The present invention pertains to: a phosphor comprising a crystalline phase that has a composition represented by a specific formula, and a minimum value of reflectance in a predetermined wavelength range at 20% or greater, the predetermined wavelength range being the range from an emission peak wavelength to 800 nm; and a light-emitting device provided with said phosphor.
Inventors:
KURUSHIMA TOMOYUKI (JP)
INATA YUHEI (JP)
HIROSAKI NAOTO (JP)
INATA YUHEI (JP)
HIROSAKI NAOTO (JP)
Application Number:
PCT/JP2022/031466
Publication Date:
July 27, 2023
Filing Date:
August 19, 2022
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
NAT INST MATERIALS SCIENCE (JP)
NAT INST MATERIALS SCIENCE (JP)
International Classes:
H01L33/50; C09K11/64; F21S43/14; F21W103/00; F21Y115/10
Foreign References:
| US20190300788A1 | 2019-10-03 | |||
| JP2017008130A | 2017-01-12 | |||
| JP6335884B2 | 2018-05-30 | |||
| JP2007291352A | 2007-11-08 | |||
| JP2022007317A | ||||
| JP2022007319A | 2022-01-13 |
Other References:
WEI-WEI HU, WEI-WEI JI, SAYED ALI KHAN, LU-YUAN HAO, XIN XU, LIANG-JUN YIN, SIMEON AGATHOPOULOS: "Preparation of Sr 1− x Ca x LiAl 3 N 4 :Eu 2+ Solid Solutions and Their Photoluminescence Properties", JOURNAL OF THE AMERICAN CERAMIC SOCIETY, BLACKWELL PUBLISHING, MALDEN, MA., US, vol. 99, no. 10, 1 October 2016 (2016-10-01), US , pages 3273 - 3279, XP055435701, ISSN: 0002-7820, DOI: 10.1111/jace.14335
FANG MU-HUAI, MENG SHU-YI, MAJEWSKA NATALIA, LEŚNIEWSKI TADEUSZ, MAHLIK SEBASTIAN, GRINBERG MAREK, SHEU HWO-SHUENN, LIU RU-SHI: "Chemical Control of SrLi(Al 1– x Ga x ) 3 N 4 :Eu 2+ Red Phosphors at Extreme Conditions for Application in Light-Emitting Diodes", CHEMISTRY OF MATERIALS, AMERICAN CHEMICAL SOCIETY, US, vol. 31, no. 12, 25 June 2019 (2019-06-25), US , pages 4614 - 4618, XP093079711, ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.9b01783
"International Tables for Crystallography", vol. A, SPACE-GROUP SYMMETRY
See also references of EP 4293732A1
FANG MU-HUAI, MENG SHU-YI, MAJEWSKA NATALIA, LEŚNIEWSKI TADEUSZ, MAHLIK SEBASTIAN, GRINBERG MAREK, SHEU HWO-SHUENN, LIU RU-SHI: "Chemical Control of SrLi(Al 1– x Ga x ) 3 N 4 :Eu 2+ Red Phosphors at Extreme Conditions for Application in Light-Emitting Diodes", CHEMISTRY OF MATERIALS, AMERICAN CHEMICAL SOCIETY, US, vol. 31, no. 12, 25 June 2019 (2019-06-25), US , pages 4614 - 4618, XP093079711, ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.9b01783
"International Tables for Crystallography", vol. A, SPACE-GROUP SYMMETRY
See also references of EP 4293732A1
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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