Invention Grant
- Patent Title: Luminescent material
- Patent Title (中): 发光材料
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Application No.: US13004554Application Date: 2011-01-11
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Publication No.: US08158028B2Publication Date: 2012-04-17
- Inventor: Gundula Roth , Walter Tews , Chung Hoon Lee
- Applicant: Gundula Roth , Walter Tews , Chung Hoon Lee
- Applicant Address: KR Seoul
- Assignee: Seoul Semiconductor Co., Ltd.
- Current Assignee: Seoul Semiconductor Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2004-0042397 20040610
- Main IPC: C09K11/64
- IPC: C09K11/64

Abstract:
This invention relates to luminescent materials for ultraviolet light or visible light excitation containing lead and/or copper doped chemical compounds. The luminescent material is composed of one or more than one compounds of aluminate type, silicate type, antimonate type, germanate/or germanate-silicate type, and/or phosphate type. Accordingly, the present invention is a good possibility to substitute earth alkaline ions by lead and copper for a shifting of the emission bands to longer or shorter wave length, respectively. Luminescent compounds containing copper and/or lead with improved luminescent properties and also with improved stability against water, humidity as well as other polar solvents are provided. The present invention is to provide lead and/or copper doped luminescent compounds, which has high color temperature range about 2,000K to 8,000K or 10,000K and CRI over 90.
Public/Granted literature
- US20110101275A1 LUMINESCENT MATERIAL Public/Granted day:2011-05-05
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