Light-emitting device
A light-emitting device having a curved light-emitting surface is provided. Further, a highly-reliable light-emitting device is provided. A substrate with plasticity is used. A light-emitting element is formed over the substrate in a flat state. The substrate provided with the light-emitting element is curved and put on a surface of a support having a curved surface. Then, a protective layer for protecting the light-emitting element is formed in the same state. Thus, a light-emitting device having a curved light-emitting surface, such as a lighting device or a display device can be manufactured.
1. A light-emitting device comprising:
a substrate having a curved surface and with plasticity;
a planarization layer over the curved surface of the substrate;
a light-emitting element over the planarization layer, the light-emitting element comprising a light-emitting layer between a pair of electrodes;
a sealing layer covering the light-emitting element; and
a protective layer over and in contact with the sealing layer,
wherein the substrate does not comprise a flat top surface.
2. The light-emitting device according to claim 1 , wherein the substrate comprises at least one of a metal material and an alloy material.
3. The light-emitting device according to claim 1 , wherein the substrate comprises at least one of aluminum, copper, iron, nickel, titanium, and magnesium.
4. The light-emitting device according to claim 1 , wherein the planarization layer comprises a resin in which particles comprising at least one of a metal material and an alloy material are dispersed.
5. The light-emitting device according to claim 1 , further comprising a plurality of pixels over the curved surface of the substrate.
6. The light-emitting device according to claim 1 , wherein the protective layer comprises a glass layer.
7. The light-emitting device according to claim 1 , wherein the protective layer is a stack in which a glass layer, a bonding layer, and a resin layer are stacked.
8. The light-emitting device according to claim 1 ,
wherein the substrate comprises a projected arc-shaped cross section, and
wherein the light-emitting element is over the projected arc-shaped cross section.
9. A light-emitting device comprising:
a substrate having a curved surface and with plasticity;
a planarization layer over the curved surface of the substrate;
a light-emitting element over the planarization layer, the light-emitting element comprising a light-emitting layer between a pair of electrodes;
a transistor electrically connected to the light-emitting element;
a sealing layer covering the light-emitting element; and
a protective layer over and in contact with the sealing layer,
wherein a channel formation region of the transistor comprises an oxide semiconductor, and
wherein the substrate does not comprise a flat top surface.
10. The light-emitting device according to claim 9 , wherein the substrate comprises at least one of a metal material and an alloy material.
11. The light-emitting device according to claim 9 , wherein the substrate comprises at least one of aluminum, copper, iron, nickel, titanium, and magnesium.
12. The light-emitting device according to claim 9 , wherein the planarization layer comprises a resin in which particles comprising at least one of a metal material and an alloy material are dispersed.
13. The light-emitting device according to claim 9 , further comprising a plurality of pixels over the curved surface of the substrate.
14. The light-emitting device according to claim 9 , wherein the protective layer comprises a glass layer.
15. The light-emitting device according to claim 9 , wherein the protective layer is a stack in which a glass layer, a bonding layer, and a resin layer are stacked.
16. The light-emitting device according to claim 9 ,
wherein the substrate comprises a projected arc-shaped cross section, and
wherein the light-emitting element is over the projected arc-shaped cross section.