Display device with reflective structure for improved light emission
View Patent ↗A display device including a transparent substrate having a first surface and a second surface; a first electrode that is transparent and formed the first surface of the substrate; a light emitting layer formed on the first electrode; a second electrode formed on the light emitting layer; and a lens formed on the second surface of the substrate. The display device further includes a reflective plate formed between the first surface of the substrate and the first electrode or between the second surface of the substrate and the lens and including a plurality of thin films.
1. A display device comprising:
a transparent substrate having a first surface and a second surface;
a first electrode which is transparent and formed on the first surface of the substrate;
a light emitting layer formed on the first electrode;
a second electrode formed on the light emitting layer;
a reflective plate formed between the first surface of the substrate and the first electrode and comprising a plurality of thin films and;
a thin film transistor disposed between the reflective plate and the first electrode and coupled to the first electrode.
2. The display device of claim 1 , wherein the thin films comprise organic material.
3. The display device of claim 1 , wherein the thin films comprise inorganic material.
4. The display device of claim 1 , wherein the thin films comprise an organic film and an inorganic film.
5. The display device of claim 1 , wherein the thin films comprise silicon nitride or silicon oxide.
6. The display device of claim 1 , wherein the reflective plate comprises a Bragg reflective plate.
7. A display device comprising:
a transparent substrate having a first surface and a second surface;
a first electrode which is transparent and formed on the first surface of the substrate;
a light emitting layer formed on the first electrode;
a second electrode formed on the light emitting layer;
a reflective plate formed on the second surface of the substrate, and
a thin film transistor disposed between the reflective plate and the first electrode and coupled to the first electrode.
8. The display device of claim 7 , wherein the thin films comprise organic material, inorganic material or both.
9. The display device of claim 7 , wherein the thin films comprise silicon nitride or silicon oxide.
10. The display device of claim 7 , wherein the reflective plate comprises a Bragg reflective plate.
11. The display device of claim 1 , wherein the plurality of thin films comprise at least two thin films having different refractive indexes and are alternately laminated.
12. The display device of claim 7 , wherein the plurality of thin films comprise at least two thin films having different refractive indexes and are alternately laminated.
13. The display device of claim 1 , further comprising a plurality of lenses disposed randomly on the second surface of the substrate.
14. The display device of claim 7 , further comprising a micro lens film formed on the reflective plate.
15. The display device of claim 13 , wherein each of the plurality of lenses is smaller than the first electrode.
16. The display device of claim 5 , wherein each of the plurality of lenses has a diameter equal to or less than about 5 microns.
17. The display device of claim 13 , wherein each of the plurality of lenses comprises a concave lens or a convex lens.
18. The display device of claim 14 , wherein the micro lens film comprises a plurality of micro lenses.
19. The display device of claim 18 , wherein each of the plurality of micro lenses is smaller than the first electrode.
20. The display device of claim 18 , wherein each of the plurality of micro lenses comprises a concave lens or a convex lens.
21. The display device of claim 18 , wherein the plurality of micro lenses is randomly distributed.
22. The display device of claim 14 , wherein the micro lens film comprises a plurality of a concave lenses or a plurality of convex lenses.