Invention Grant
- Patent Title: Lighting device
- Patent Title (中): 照明设备
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Application No.: US13326470Application Date: 2011-12-15
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Publication No.: US08575631B2Publication Date: 2013-11-05
- Inventor: Shunpei Yamazaki
- Applicant: Shunpei Yamazaki
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Robinson Intellectual Property Law Office, P.C.
- Agent Eric J. Robinson
- Priority: JP2010-288710 20101224
- Main IPC: H01L29/207
- IPC: H01L29/207 ; H01L29/205
Abstract:
For integration of light-emitting elements and for suppression of a voltage drop, plural stages of light-emitting element units each including a plurality of light-emitting elements which is connected in parallel are connected in series. Further, besides a lead wiring with a large thickness, a plurality of auxiliary wirings with different widths and different thicknesses is used, and the arrangement of the wirings, electrodes of the light-emitting elements, and the like is optimized.
Public/Granted literature
- US20120161165A1 LIGHTING DEVICE Public/Granted day:2012-06-28
Information query
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