Flexible light-emitting device
It is an object to provide a flexible light-emitting device with long lifetime in a simple way and to provide an inexpensive electronic device with long lifetime using the flexible light-emitting device. A flexible light-emitting device is provided, which includes a substrate having flexibility and a light-transmitting property with respect to visible light; a first adhesive layer over the substrate; an insulating film containing nitrogen and silicon over the first adhesive layer; a light-emitting element including a first electrode, a second electrode facing the first electrode, and an EL layer between the first electrode and the second electrode; a second adhesive layer over the second electrode; and a metal substrate over the second adhesive layer, wherein the thickness of the metal substrate is 10 μm to 200 μm inclusive. Further, an electronic device using the flexible light-emitting device is provided.
1. A light-emitting device comprising:
a substrate having flexibility;
an adhesive;
an insulating film over the substrate having flexibility, the insulating film comprising nitrogen and silicon;
a light-emitting element over the insulating film;
a layer capable of preventing entry of moisture over the light-emitting element; and
a second adhesive between the light-emitting element and the layer capable of preventing entry of moisture,
wherein the adhesive is provided between the light-emitting element and the substrate having flexibility,
wherein the insulating film is provided between the substrate having flexibility and the light-emitting element, and
wherein the light-emitting element comprises:
a first electrode;
a second electrode over the first electrode; and
an electroluminescence layer interposed between the first electrode and the second electrode, the electroluminescence layer comprising an organic compound.
2. The light-emitting device according to claim 1 , wherein the layer capable of preventing entry of moisture is a metal substrate.
3. The light-emitting device according to claim 1 , wherein the substrate having flexibility is capable of transmitting visible light.
4. The light-emitting device according to claim 1 , wherein the substrate having flexibility is a plastic substrate.
5. An electronic device comprising the light-emitting device according to claim 1 , the electronic device comprising at least one of a FPC, an IC chip, a printed wiring board, and a housing.
6. A light-emitting device comprising:
a substrate having flexibility;
an adhesive;
an insulating film over the substrate having flexibility, the insulating film comprising nitrogen and silicon;
a light-emitting element over the insulating film;
a metal capable of preventing entry of moisture over the light-emitting element; and
a second adhesive between the light-emitting element and the metal capable of preventing entry of moisture,
wherein the adhesive is provided between the light-emitting element and the substrate having flexibility,
wherein the insulating film is provided between the substrate having flexibility and the light-emitting element, and
wherein the light-emitting element comprises:
a first electrode;
a second electrode over the first electrode; and
an electroluminescence layer interposed between the first electrode and the second electrode, the electroluminescence layer comprising an organic compound.
7. The light-emitting device according to claim 6 , wherein the metal capable of preventing entry of moisture is a metal substrate.
8. The light-emitting device according to claim 6 , wherein the substrate having flexibility is capable of transmitting visible light.
9. The light-emitting device according to claim 6 , wherein the substrate having flexibility is a plastic substrate.
10. An electronic device comprising the light-emitting device according to claim 6 , the electronic device comprising at least one of a FPC, an IC chip, a printed wiring board, and a housing.
11. A light-emitting device comprising:
a substrate having flexibility;
an adhesive;
an insulating film over the substrate having flexibility, the insulating film comprising nitrogen and silicon;
a light-emitting element over the insulating film;
a transistor over the insulating film, the transistor is electrically connected to the light-emitting element;
a layer capable of preventing entry of moisture over the light-emitting element; and
a second adhesive between the light-emitting element and the layer capable of preventing entry of moisture,
wherein the adhesive is provided between the light-emitting element and the substrate having flexibility,
wherein the insulating film is provided between the substrate having flexibility and the light-emitting element, and
wherein the light-emitting element comprises:
a first electrode;
a second electrode over the first electrode; and
an electroluminescence layer interposed between the first electrode and the second electrode, the electroluminescence layer comprising an organic compound.
12. The light-emitting device according to claim 11 ,
wherein the transistor comprises a semiconductor layer and a gate electrode which overlap with each other,
wherein the semiconductor layer comprises polysilicon.
13. The light-emitting device according to claim 11 , wherein the layer capable of preventing entry of moisture is a metal substrate.
14. The light-emitting device according to claim 11 , wherein the substrate having flexibility is capable of transmitting visible light.
15. The light-emitting device according to claim 11 , wherein the substrate having flexibility is a plastic substrate.
16. An electronic device comprising the light-emitting device according to claim 11 , the electronic device comprising at least one of a FPC, an IC chip, a printed wiring board, and a housing.