- Patent Title: Fluoride phosphor composite, method of manufacturing fluoride phosphor composite, white light emitting apparatus, display apparatus, lighting device, and electronic device
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Application No.: US15719724Application Date: 2017-09-29
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Publication No.: US10851294B2Publication Date: 2020-12-01
- Inventor: Ji Ho You , In Hyung Lee , Tae Hoon Kim , Jong Won Park , Chul Soo Yoon , Chi Woo Lee
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Muir Patent Law, PLLC
- Priority: KR10-2014-0175659 20141209
- Main IPC: C09K11/61
- IPC: C09K11/61 ; C09K11/02 ; C09K11/57

Abstract:
There is provided a fluoride phosphor composite including: fluoride phosphor core particles that may be expressed by the empirical formula AxMFy:Mn4+, wherein A may be at least one selected from the group consisting of Li, Na, K, Rb, and Cs, M may be at least one selected from the group consisting of Si, Ti, Zr, Hf, Ge, and Sn, the composition ratio (x) of A may satisfy 2≤x≤3, the composition ratio (y) of F may satisfy 4≤y≤7, each fluoride phosphor composite particle may be coated with a Mn-free fluoride coating. The Mn-free fluoride coating may have a thickness less than or equal to 35% of the size of each fluoride phosphor composite particle.
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