Invention Grant
- Patent Title: Fluorescent substance, light emitting device, surface light source device, display device and illuminating device
- Patent Title (中): 荧光物质，发光装置，表面光源装置，显示装置和照明装置
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Application No.: US13578779Application Date: 2011-02-11
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Publication No.: US09127203B2Publication Date: 2015-09-08
- Inventor: Chang Bun Yoon , Hyong Sik Won , Chul Soo Yoon
- Applicant: Chang Bun Yoon , Hyong Sik Won , Chul Soo Yoon
- Applicant Address: KR Suwon-Si, Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-Si, Gyeonggi-Do
- Agency: McDermott Will & Emery LLP
- Priority: KR10-2010-0013626 20100212
- International Application: PCT/KR2011/000920 WO 20110211
- International Announcement: WO2011/099800 WO 20110818
- Main IPC: C09K11/79
- IPC: C09K11/79 ; C09K11/80 ; C09K11/77 ; C04B35/597 ; C09K11/08
Abstract:
There is provided a phosphor having a β-type Si3N4 crystal structure including oxynitride expressed by an empirical formula Si6-zAlzOz N8-z:Eua,Mb, M being at least one selected from among strontium (Sr) and barium (Ba), an amount (a) of europium (Eu) ranging from 0.1 to 5 mol %, an amount (b) of M ranging from 0.1 to 10 mol %, and a composition rate (z) of aluminum (Al) satisfying 0.1
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