发明申请
- 专利标题： Light Emitting Device, Lighting System, Backlight for Display and Display Using the Same
- 专利标题（中）： 发光装置，照明系统，使用其显示和显示的背光
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申请号： US11631396申请日： 2005-06-29
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公开(公告)号： US20070222360A1公开(公告)日： 2007-09-27
- 发明人: Hideaki Kaneda , Naoto Kijima , Eiji Hattori
- 申请人： Hideaki Kaneda , Naoto Kijima , Eiji Hattori
- 申请人地址： JP Minato-ku 108-0014
- 专利权人： Mitsubishi Chemical Corporation
- 当前专利权人： Mitsubishi Chemical Corporation
- 当前专利权人地址： JP Minato-ku 108-0014
- 优先权： JP2004-194153 20040630
- 国际申请： PCT/JP05/11939 WO 20050629
- 主分类号： H01J1/62
- IPC分类号： H01J1/62
摘要：
For enhancing emission efficiency and color rendering of light emitting device, it comprises: a light source 3; a first emitting section 4 having a luminescent material emitting light including a wavelength component longer than that of light from said light source 3 when excited by light from light source 3; a second emitting section 5 having a luminescent material emitting light including a wavelength component longer than that of light from first emitting section 4 when excited by light from light source 3 and first emitting section 4; and a light exit side 1A from which light from light source 3, first light-emitting section 4 and second light-emitting section 5 emerges outside; wherein first emitting section 4 and second emitting section 5 are opened at light exit side 1A, and area of boundary surface X1 between first emitting section 4 and second emitting section 5 is equal to or less than fifty percent of surface area of first emitting section 4.