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Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2011009790
Kind Code:
A
Abstract:

To provide a bright and high-reliable light-emitting device; and to provide a high-reliability electric appliance using such a light-emitting device as a display part or a light source.

A positive electrode 102, an EL layer 103, a negative electrode 104, and an auxiliary electrode 105 are sequentially laminated on a reflecting electrode 101. The positive electrode 102, the negative electrode 104, and the auxiliary electrode 105 are transparent or semi-transparent with respect to visible light. In such a structure, almost all light rays generated in the EL layer 103 are radiated to the negative electrode 104 side, whereby an effective light-emitting area of a pixel is drastically improved. By arranging a substance having hygroscopicity between the negative electrode 104 and a counter substrate, incorporated water, oxygen and gas are adsorbed thereto.


Inventors:
FUKUNAGA KENJI
MARUYAMA JUNYA
Application Number:
JP2010230335A
Publication Date:
January 13, 2011
Filing Date:
October 13, 2010
Export Citation:
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Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
H01L51/50; H05B33/26; H01L27/12; H01L27/32; H01L51/52; H05B33/04; H05B33/12; H05B33/22; H01L21/77; H01L29/786; H01L51/56
Domestic Patent References:
JPH09148066A1997-06-06
JPH11329717A1999-11-30
JPH10275682A1998-10-13
JPH09274990A1997-10-21
Foreign References:
WO1998036407A11998-08-20



 
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