LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AND ELECTRONIC APPLIANCE
First Claim
1. A light emitting element comprising:
- a light emitting layer and a layer including a composite material between a first electrode and a second electrode,wherein the light emitting layer includes a base material and an impurity element which forms a luminescent center,the layer including the composite material includes an organic compound and an inorganic compound,the layer including the composite material is provided to be in contact with the second electrode, andlight emission is obtained by application of a voltage so that an electric potential of the second electrode is higher than an electric potential of the first electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
It is an object to provide a light emitting element capable of low-voltage driving; with high luminous efficiency; with high emission luminance; and with long emission lifetime. It is another object to provide a light emitting device and an electronic appliance in which power consumption is reduced; and which can be manufactured at low cost. A light emitting element is provided, including a light emitting layer and a layer including a composite material between a first electrode and a second electrode, where the light emitting layer includes a base material and an impurity element, the layer including the composite material includes an organic compound and an inorganic compound, the layer including the composite material is provided to be in contact with the second electrode, and light emission is obtained by application of a voltage so that an electric potential of the second electrode is higher than that of the first electrode.
-
Citations
22 Claims
-
1. A light emitting element comprising:
-
a light emitting layer and a layer including a composite material between a first electrode and a second electrode, wherein the light emitting layer includes a base material and an impurity element which forms a luminescent center, the layer including the composite material includes an organic compound and an inorganic compound, the layer including the composite material is provided to be in contact with the second electrode, and light emission is obtained by application of a voltage so that an electric potential of the second electrode is higher than an electric potential of the first electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification