Thin film electroluminescence display element
AssigneeFuji Electric Co., Ltd.
InventorYukihiro Maruta
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Abstract
A thin film electroluminescence display element composed of a soda-lime glass substrate having provided thereon a barrier layer including tantalum (V) oxide, a transparent indium-tin oxide (ITO) electrode as a first electrode, a first insulating layer, a luminescent layer, a second insulating layer, and a second electrode is disclosed. The tantalum (V) oxide barrier layer effectively prevents sodium in the soda-lime glass substrate from diffusing into the ITO transparent electrode.
Claims10
A thin film electroluminescence display element comprising:
- a soda-lime glass substrate;
- a barrier layer comprising a first layer on the substrate including tantalum (V) oxide and a second layer on the first layer inhibiting migration of oxygen from the tantalum (V) oxide, said second layer comprising at least one of silica and alumina;
- a transparent indium-tin oxide electrode on the barrier layer;
- a first insulating layer on the indium-tin oxide electrode;
- a luminescent layer on the first insulating layer;
- a second insulating layer on the luminescent layer;
- and
- another electrode on the second insulating layer.
A thin film electroluminescence display element comprising:
- a glass substrate;
- a barrier layer comprising a first layer on the substrate including tantalum (V) oxide and a second layer on the first layer inhibiting migration of oxygen from the tantalum (V) oxide, said second layer comprising at least one of silica and alumina;
- a transparent indium-tin oxide electrode on the barrier layer;
- a first insulating layer on the indium-tin oxide electrode;
- a luminescent layer on the first insulating layer;
- a second insulating layer on the luminescent layer;
- and
- another electrode on the second insulating layer.
A thin film electroluminescence display element comprising:
- a substrate that permits the outdiffusion of sodium;
- a barrier layer comprising a first layer on the substrate including tantalum (V) oxide and a second layer on the first layer inhibiting migration of oxygen from the tantalum (V) oxide, said second layer comprising at least one of silica and alumina;
- a transparent indium-tin oxide electrode on the barrier layer;
- a first insulating layer on the indium-tin oxide electrode;
- a luminescent layer on the first insulating layer;
- a second insulating layer on the luminescent layer;
- and
- another electrode on the second insulating layer.
Dependencies are inferred from the claim text.