发明授权
US09039218B2 White LED lamp, backlight, light emitting device, display device and illumination device
有权
白色LED灯，背光源，发光装置，显示装置及照明装置
- 专利标题： White LED lamp, backlight, light emitting device, display device and illumination device
- 专利标题（中）： 白色LED灯，背光源，发光装置，显示装置及照明装置
-
申请号： US13619500申请日： 2012-09-14
-
公开(公告)号： US09039218B2公开(公告)日： 2015-05-26
- 发明人: Tsutomu Ishii , Hajime Takeuchi , Yasumasa Ooya , Katsutoshi Nakagawa , Yumi Ito , Masaki Toyoshima , Yasuhiro Shirakawa , Ryo Sakai
- 申请人： Tsutomu Ishii , Hajime Takeuchi , Yasumasa Ooya , Katsutoshi Nakagawa , Yumi Ito , Masaki Toyoshima , Yasuhiro Shirakawa , Ryo Sakai
- 申请人地址： JP Tokyo JP Yokohama-shi
- 专利权人： KABUSHIKI KAISHA TOSHIBA,TOSHIBA MATERIALS CO., LTD.
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA,TOSHIBA MATERIALS CO., LTD.
- 当前专利权人地址： JP Tokyo JP Yokohama-shi
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2008-043344 20080225; JP2008-304117 20081128; JP2008-307611 20081202
- 主分类号： H01L33/50
- IPC分类号： H01L33/50 ; H01L33/32 ; C09K11/58 ; C09K11/64 ; C09K11/77 ; H01L33/60 ; H05B33/14 ; H05B33/20 ; H01L33/40 ; H01L33/54 ; H01L33/64 ; H01L33/44
摘要：
A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/Im or less.
公开/授权文献
信息查询
IPC分类:
