Light-emitting device with transparent substrate
View Patent ↗A light-emitting device includes a transparent substrate having a first surface and a second surface opposite to the first surface. A light-emitting element is provided on the first surface of the transparent substrate and emits light. A porous layer is provided on the second surface of the transparent substrate, the porous layer including an organic material and having pores. The porous layer does not include an inorganic compound.
1. A light-emitting device comprising:
a transparent substrate having a first surface and a second surface opposite to the first surface;
a light-emitting element and a thin film transistor provided on the first surface of the transparent substrate, the light emitting element being configured to emit light;
a porous layer on the second surface of the transparent substrate, the porous layer including an organic material and having pores; and
a first layer between the transparent substrate and the porous layer,
wherein the light-emitting element has a third surface and a fourth surface opposite to the third surface, the third surface facing the first surface of the transparent substrate,
the light is emitted from the fourth surface of the light emitting element to outside of the light-emitting device, and
the first layer is thinner than the transparent substrate.
2. The light-emitting device according to claim 1 , wherein
the pores in the porous layer include a first pore and a second pore that is larger than the first pore.
3. The light-emitting device according to claim 2 , wherein
a diameter of the second pore is at least ten times larger than a diameter of the first pore.
4. The light-emitting device according to claim 1 , wherein
the porous layer has a uniform thickness.
5. The light-emitting device according to claim 1 , wherein
the porous layer has a thickness of 1 μm or more and 1000 μm or less.
6. The light-emitting device according to claim 1 , wherein the thin film transistor includes a gate.
7. The light-emitting device according to claim 1 , wherein the thin film transistor is located between the light-emitting element and the transparent substrate.
8. The light-emitting device according to claim 6 , wherein the thin film transistor is located between the light-emitting element and the transparent substrate.
9. The light-emitting device according to claim 1 , wherein the light-emitting element and the thin film transistor are provided indirectly on the first surface of the transparent substrate.
10. A light-emitting device comprising:
a transparent substrate having a first surface and a second surface opposite to the first surface;
a light-emitting element and a thin film transistor provided on the first surface of the transparent substrate, the light emitting element being configured to emit light;
a porous layer on the second surface of the transparent substrate, the porous layer including an organic material and having pores; and
a first layer between the transparent substrate and the porous layer,
wherein the first layer is thinner than the transparent substrate.
11. The light-emitting device according to claim 10 , wherein the thin film transistor includes a gate.
12. The light-emitting device according to claim 10 , wherein the thin film transistor is located between the light-emitting element and the transparent substrate.
13. The light-emitting device according to claim 11 , wherein the thin film transistor is located between the light-emitting element and the transparent substrate.
14. The light-emitting device according to claim 10 , wherein
the pores in the porous layer include a first pore and a second pore that is larger than the first pore.
15. The light-emitting device according to claim 10 , wherein
the porous layer has a uniform thickness.
16. The light-emitting device according to claim 1 , wherein the light-emitting element and the thin film transistor are provided indirectly on the first surface of the transparent substrate.
17. A light-emitting device comprising:
a transparent substrate having a first surface and a second surface opposite to the first surface;
a light-emitting element and a thin film transistor provided on the first surface of the transparent substrate, the light emitting element being configured to emit light;
a porous layer on the second surface of the transparent substrate, the porous layer including an organic material and having pores; and
a first layer between the transparent substrate and the porous layer,
wherein the light-emitting element has a third surface and a fourth surface opposite to the third surface, the third surface facing the first surface of the transparent substrate, and
the light is emitted from the fourth surface of the light emitting element to outside of the light-emitting device.
18. The light-emitting device according to claim 17 , wherein the thin film transistor includes a gate.
19. The light-emitting device according to claim 17 , wherein the thin film transistor is located between the light-emitting element and the transparent substrate.
20. The light-emitting device according to claim 18 , wherein the thin film transistor is located between the light-emitting element and the transparent substrate.
21. The light-emitting device according to claim 17 , wherein
the pores in the porous layer include a first pore and a second pore that is larger than the first pore.
22. The light-emitting device according to claim 17 , wherein
the porous layer has a uniform thickness.
23. The light-emitting device according to claim 10 , wherein the light-emitting element and the thin film transistor are provided indirectly on the first surface of the transparent substrate.