Invention Grant
- Patent Title: Lighting device having plural light emitting layers with carrier generation layer therebetween
- Patent Title (中): 具有多个具有载流子生成层的发光层的照明装置
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Application No.: US12979655Application Date: 2010-12-28
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Publication No.: US08436531B2Publication Date: 2013-05-07
- Inventor: Ryoji Nomura
- Applicant: Ryoji Nomura
- 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: JP2004-265006 20040913
- Main IPC: H01L51/52
- IPC: H01L51/52 ; H01L29/18 ; G09G3/10

Abstract:
It is an object of the present invention to provide a light emitting device which is less affected by a malfunction caused in a light emitting element. It is another object of the invention to provide a light emitting device in which light emitting elements are connected in series. As to a light emitting device of the invention, groups of circuits each having a light emitting element and a limiter are connected in parallel. Here, a light emitting element and a limiter are connected in series. The number of the circuits may be at least two or more. Further, each circuit group includes at least one light emitting element.
Public/Granted literature
- US20110101388A1 LIGHT EMITTING DEVICE Public/Granted day:2011-05-05
Information query
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