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US 2006/0220035 A1Published application
Light emitting device and its manufacturing method
AssigneeCanon Kabushiki Kaisha
InventorsTatsuya Iwasaki, Toru Den
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AssigneeCanon Kabushiki Kaisha
InventorsTatsuya Iwasaki, Toru Den
Estimating the term…
The present invention is intended to provide a light emitting device which can be operated at a low voltage, has excellent luminous efficiency, stability, production cost, and the like. A light emitting device which has at least electrode layers 11, 14, a light emitting layer 13, a structure layer 12 between the electrode layer 11 and light emitting layer 13, wherein structure layer 12 has domains composed of a first material, and domains composed of a second material. It is preferable for the structure layer to have a plurality of columnar domains composed of the first material, and the domains composed of the second material around the domains composed of the first material, and for the domains composed of the first material are arranged regularly. It is preferable that the first material and the second material are composed of different oxides.
A light emitting device comprising a substrate, a first electrode layer, a light emitting layer, a structure layer and a second electrode layer, which structure layer has first domains composed of a first material having the shape of column and second domains composed of a second material, and which device has on the substrate the structure layer and the light emitting layer which layers are laminated between the first electrode layer and the second electrode layer.
A manufacturing method of a light emitting device comprised of a substrate, an electrode layer, a light emitting layer and a structure layer having first domains composed of a first material and second domains composed of a second material which layers are laminated on the substrate, comprising the steps of:
A manufacturing method of a light emitting device comprised of a substrate, an electrode layer, a light emitting layer and a structure layer having first domains composed of a first material and second domains composed of a second material which layers are laminated on the substrate, comprising the steps of:
A light emitting device comprising a substrate, an electrode layer, a light emitting layer and a structure layer having first domains composed of a first material having the shape of column and a second domain composed of a second material, wherein an electron is accelerated at an interface between the first domain and the second domain when a voltage is applied, to inject the electron into the light emitting layer.
A light emitting device comprising a substrate, an electrode layer, a light emitting layer and a structure layer having first domains composed of a first material having the shape of column and a second domain composed of a second material, wherein the structure layer is in contact with one selected from the group consisting of the structure layer and the electrode layer.
Dependencies are inferred from the claim text.