公开(公告)号：US20190233726A1

公开(公告)日：2019-08-01

申请号：US16319921

申请日：2017-07-21

Applicant: DEXERIALS CORPORATION

Inventor： Moriaki ABE ,  Masaki KANNO

IPC: C09K11/77 ,  F21K9/64 ,  H01L33/50 ,  H01L27/15

CPC classification number: C09K11/7734 ,  F21K9/64 ,  F21Y2115/10 ,  H01L27/156 ,  H01L33/502

Abstract: Provided are a red phosphor having increased reflectivity in a green color gamut and a production method therefor, and a white light source, an illumination device, and a display device using the same. A red phosphor comprises a composition containing an alkaline earth metal element (A), europium (Eu), silicon (Si), aluminum (Al), oxygen (O), and nitrogen (N) at atomic ratios in the following Formula (1), and further containing carbon (C), [A(m-x)Eux]Si9AlyOnN{12+y-2(n-m)/3}  (1) where m, n, x, and y respectively satisfy 3

公开(公告)号：US20190249080A1

公开(公告)日：2019-08-15

申请号：US16271011

申请日：2019-02-08

Applicant: DEXERIALS CORPORATION

Inventor： Moriaki ABE ,  Masaki KANNO

IPC: C09K11/77 ,  H01L33/50 ,  H01L27/15 ,  G02F1/1335

CPC classification number: C09K11/7734 ,  G02F1/133621 ,  G02F2001/133614 ,  H01L27/156 ,  H01L33/504 ,  H01L2933/0041

Abstract: A red fluorescent substance including: element A, europium (Eu), silicon (Si), aluminum (Al), oxygen (O), and nitrogen (N) at ratios of numbers of atoms in Compositional Formula (1) below. [A(m−x)Eux]Si9AlyOnN[12+y−2(n−m)/3]  Compositional Formula (1) In the Compositional Formula (1), the element A is a Group 2 element including calcium (Ca) and barium (Ba), m, x, y, and n in the Compositional Formula (1) satisfy 3

公开(公告)号：US20200028040A1

公开(公告)日：2020-01-23

申请号：US16338058

申请日：2017-08-25

Applicant: Dexerials Corporation

Inventor： Shuji OHASHI ,  Takehiro YAMASUGE ,  Moriaki ABE ,  Kazuhiro YAGIHASHI ,  Tsuneo KUSUNOKI

IPC: H01L33/56 ,  H01L33/60 ,  H01L33/50

Abstract: A light-emitting device includes a light-emitting element; one or more silver-based members having silver on their surfaces; and a resin layer including a first resin layer covering at least one of the silver-based members, and a second resin layer placed directly on the first resin layer. The light-emitting element is covered with the first resin layer or both the first resin layer and the second resin layer, at least one of the first resin layer and the second resin layer contains an inorganic adsorbent which chemically adsorbs a sulfide, the second resin layer contains a sulfide-based phosphor, and a ratio of a thickness of the first resin layer with respect to a total thickness of the first resin layer and the second resin layers is 50% or more.