Invention Grant
- Patent Title: Light emitting device
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Application No.: US15187945Application Date: 2016-06-21
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Publication No.: US09679942B2Publication Date: 2017-06-13
- Inventor: Shinya Ishizaki , Makoto Agatani , Tomokazu Nada , Toshio Hata
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2010-012486 20100122
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L27/15 ; H01L33/48 ; H01L33/56 ; F21V3/00 ; H01L25/075 ; H01L25/16 ; H01L33/54 ; H01L33/38 ; F21V29/74 ; F21V5/04 ; F21V23/00 ; H01L33/52 ; H01L33/60 ; H01L33/62 ; F21K9/232 ; H01L33/50 ; F21Y101/00 ; F21Y115/10

Abstract:
A light emitting device includes: a ceramic substrate; a plurality of LED chips; a printed resistor(s) connected in parallel with the plurality of LED chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of LEDs, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency.
Public/Granted literature
- US20160300882A1 LIGHT EMITTING DEVICE Public/Granted day:2016-10-13
Information query
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