Invention Grant
- Patent Title: Light emitting device
- Patent Title (中): 发光装置
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Application No.: US13033911Application Date: 2011-02-24
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Publication No.: US08278821B2Publication Date: 2012-10-02
- Inventor: Kunio Ishida , Iwao Mitsuishi , Ryosuke Hiramatsu , Yumi Fukuda , Keiko Albessard , Naotoshi Matsuda , Aoi Okada , Shinya Nunoue
- Applicant: Kunio Ishida , Iwao Mitsuishi , Ryosuke Hiramatsu , Yumi Fukuda , Keiko Albessard , Naotoshi Matsuda , Aoi Okada , Shinya Nunoue
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-199984 20100907
- Main IPC: H05B33/14
- IPC: H05B33/14 ; H01L33/50
Abstract:
A light emitting device according to one embodiment includes a light emitting element that emits light having a wavelength of 250 nm to 500 nm; plural red fluorescent layers that are formed above the light emitting element to include a red fluorescent material, the red fluorescent layers being disposed at predetermined intervals; and plural green fluorescent layers that are formed above the light emitting element to include a green fluorescent material, a distance between the light emitting element and the green fluorescent layers being larger than a distance between the light emitting element and the red fluorescent layers.
Public/Granted literature
- US20120056525A1 LIGHT EMITTING DEVICE Public/Granted day:2012-03-08
Information query
