Invention Application
- Patent Title: LIGHT-EMITTING UNIT AND SURFACE-EMISSION LIGHT SOURCE
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Application No.: US16945446Application Date: 2020-07-31
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Publication No.: US20210036199A1Publication Date: 2021-02-04
- Inventor: Takuya NAKABAYASHI , Toshinobu KATSUMATA , Noriaki HIRAIDE
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Priority: JP2019-143128 20190802,JP2020-078314 20200427
- Main IPC: H01L33/62
- IPC: H01L33/62 ; H01L33/48 ; H01L27/15 ; H05K1/18 ; H01L33/60 ; H01L33/50

Abstract:
A light-emitting unit includes: a wiring board; a plurality of light-emitting elements provided on the wiring board and electrically coupled with a wire layer of the wiring board; a light reflecting member provided on the wiring board, the light reflecting member covering a lateral surface of each of the plurality of light-emitting elements; a light diffusing layer covering the plurality of light-emitting elements and the light reflecting member; a wavelength conversion layer located on or above the light diffusing layer; and a plurality of light reflecting layers located between the light diffusing layer and the wavelength conversion layer, each of the light reflecting layers being located above a corresponding one of the plurality of light-emitting elements. An upper surface of the light reflecting member has a recess which includes at least one concave surface, and there is a space between the concave surface and the light diffusing layer.
Information query
IPC分类: