Invention Grant
- Patent Title: Light emitting element, light emitting device and electric appliance using the same
- Patent Title (中): 发光元件,发光元件及使用其的电器
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Application No.: US13294458Application Date: 2011-11-11
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Publication No.: US08476827B2Publication Date: 2013-07-02
- Inventor: Kaoru Kato , Shunpei Yamazaki
- Applicant: Kaoru Kato , Shunpei Yamazaki
- 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: JP2005-089378 20050325
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01J63/04

Abstract:
It is an object of the present invention to provide a light emitting element with low drive voltage. In addition, it is another object to provide a light emitting device having the light emitting element. Further in addition, it is another object to provide an electric appliance which has a light emitting element with low drive voltage. A light emitting element of the present invention comprises a pair of electrodes, a layer containing a light emitting element and a layer containing a mixture material which contains a conductive material formed from an inorganic compound and an insulating material formed from an inorganic compound, which are interposed between the pair of electrodes, wherein the layer containing the mixture material has a resistivity of 50,000 to 1,000,000 ohm cm, preferably, 200,000 to 500,000 ohm cm. The drive voltage of the light emitting element can be lowered with the foregoing structure.
Public/Granted literature
- US20120119252A1 Light Emitting Element, Light Emitting Device and Electric Appliance Using the Same Public/Granted day:2012-05-17
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