Invention Grant
US08269410B2 Light-emitting device, white light-emitting device, illuminator, and image display
有权
发光装置,白色发光装置,照明装置和图像显示装置
- Patent Title: Light-emitting device, white light-emitting device, illuminator, and image display
- Patent Title (中): 发光装置,白色发光装置,照明装置和图像显示装置
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Application No.: US11909009Application Date: 2006-03-17
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Publication No.: US08269410B2Publication Date: 2012-09-18
- Inventor: Naoto Kijima , Yasuo Shimomura , Hideaki Kaneda , Kimiya Takeshita
- Applicant: Naoto Kijima , Yasuo Shimomura , Hideaki Kaneda , Kimiya Takeshita
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Chemical Corporation
- Current Assignee: Mitsubishi Chemical Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2005-080033 20050318; JP2005-092976 20050328; JP2005-103148 20050331; JP2005-151175 20050524; JP2005-178377 20050617
- International Application: PCT/JP2006/305455 WO 20060317
- International Announcement: WO2006/098450 WO 20060921
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/52

Abstract:
To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x1(17.5) and the color coordinate y1(17.5) of the light emitted at a driving current density of 17.5 A/cm2 and the color coordinate x1(70) and the color coordinate y1(70) of the light emitted at a driving current density of 70 A/cm2 satisfy the following Expressions (D) and (E): −0.006≦x1(17.5)−x1(70)≦0.006 (D), −0.006≦y1(17.5)−y1(70)≦0.006 (E).
Public/Granted literature
- US08232717B2 Light-emitting device, white light-emitting device, illuminator, and image display Public/Granted day:2012-07-31
Information query
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