Invention Grant
- Patent Title: Light-emitting element, light-emitting device, and lighting device
- Patent Title (中): 发光元件,发光装置和照明装置
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Application No.: US13277566Application Date: 2011-10-20
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Publication No.: US08969896B2Publication Date: 2015-03-03
- Inventor: Hisao Ikeda , Satoshi Seo
- Applicant: Hisao Ikeda , Satoshi Seo
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2010-237647 20101022
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L33/58 ; H01L51/52 ; H01L51/00

Abstract:
Described is a solid-state light-emitting element, a light-emitting device using the solid-state light-emitting element, and a lighting device using the light-emitting device. The solid-state light-emitting element comprises a member with a low refractive index which has a hemispherical structure on a first surface and an uneven structure on a second surface, a bonding layer with a high refractive index which planarizes the uneven structure, and a light-emitting body whose light-emitting surface is in contact with a flat surface of the bonding layer. The uneven structure of the member with a low refractive index is provided inside at least an outside shape of the hemispherical structure formed on the first surface; and the light-emitting body is provided such that an outside shape of the light-emitting region of the light-emitting body is smaller than the outside shape of the hemispherical structure and overlaps with the hemispherical structure.
Public/Granted literature
- US20120097991A1 Light-Emitting Element, Light-Emitting Device, and Lighting Device Public/Granted day:2012-04-26
Information query
IPC分类: