Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2006-03-17
2011-11-15
Williams, Joseph L (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S498000, C313S506000
Reexamination Certificate
active
08058794
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.
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Kato Kaoru
Yamazaki Shunpei
Husch & Blackwell LLP
Quarterman Kevin
Semiconductor Energy Laboratory Co,. Ltd.
Williams Joseph L
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