Invention Grant
US08088302B2 Green phosphor of thiogallate, red phosphor of alkaline earth sulfide and white light emitting device thereof
有权
硫氰酸钠的绿色荧光体，碱土金属硫化物的红色荧光体及其白色发光装置
- Patent Title: Green phosphor of thiogallate, red phosphor of alkaline earth sulfide and white light emitting device thereof
- Patent Title (中): 硫氰酸钠的绿色荧光体，碱土金属硫化物的红色荧光体及其白色发光装置
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Application No.: US11912383Application Date: 2006-05-23
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Publication No.: US08088302B2Publication Date: 2012-01-03
- Inventor: Kyung Nam Kim , Sang Mi Park , Tomizo Matsuoka
- Applicant: Kyung Nam Kim , Sang Mi Park , Tomizo Matsuoka
- 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
- International Application: PCT/KR2006/001921 WO 20060523
- International Announcement: WO2006/126817 WO 20061130
- Main IPC: H01L33/00
- IPC: H01L33/00 ; C09K11/80
Abstract:
The present invention relates to a white light emitting device in which a thiogallate based phosphor capable of emitting green light and an alkaline earth metal sulfide based phosphor capable of emitting red light are arranged on an upper surface of a light emitting diode for emitting ultraviolet rays or blue light such that the mixing of the lights can result in white light with high brightness, and thus, excellent white light with high color purity and color reproducibility after color filtration.
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