Display device
A display device (utilizing quantum dots, photonic crystals, microlight emitting diodes/vertical cavity surface emitting lasers and electrically switchable light valves) is disclosed. Furthermore, a quantum dot(s) can be electromagnetically coupled with a three-dimensional (3-D) structure(s). Additionally, the electrically switchable light valve can include a phase change material/phase transition material.
1. A display device comprising:
(a) a light source of emitting a first light of a first color;
(b) a light emitting layer comprises quantum dots; and
wherein the quantum dots are in or on a photonic crystal,
wherein the light emitting layer absorbs a portion of the first light of the first color from the light source,
wherein the light emitting layer emits a second light of a second color,
(c) an electrically switchable light valve or an electrically switchable light shutter.
2. The display device according to claim 1 , wherein the quantum dot comprises: a two-dimensional material.
3. The display device according to claim 1 , wherein the quantum dot is electromagnetically coupled with a three-dimensional structure of dimension less than 400 nanometers.
4. The display device according to claim 1 , wherein the light source is an organic light emitting diode, or an organic light emitting diode comprising quantum dots.
5. The display device according to claim 1 , wherein the light source is a microlight emitting diode, or a microlight emitting diode with a light collection layer comprising photonic crystals.
6. The display device according to claim 1 , wherein the light source is a vertical cavity surface emitting laser.
7. The display device according to claim 1 , wherein the light source is a vertical cavity surface emitting laser, wherein the vertical cavity surface emitting laser comprises: two metallized Bragg mirrors, wherein one metallized Bragg mirror comprises: a hole.
8. The display device according to claim 1 , wherein the electrically switchable light valve or the electrically switchable light shutter comprises: a phase change material, or a phase transition material.
9. The display device according to claim 1 , further comprises: an optical filter, or a microlens.
10. The display device according to claim 1 , further comprises: a camera sensor, wherein the camera sensor is in proximity to a display pixel.
11. A display device comprising:
(a) a light source of emitting a first light of a first color;
wherein the light source comprises: a microlight emitting diode, or an organic light emitting diode, or an organic light emitting diode comprising quantum dots,
(b) a light emitting layer comprises quantum dots;
wherein the quantum dots are in or on a photonic crystal,
wherein the light emitting layer absorbs a portion of the first light of the first color from the light source,
wherein the light emitting layer emits a second light of a second color,
(c) an electrically switchable light valve or an electrically switchable light shutter; and
(d) a microlens.
12. The display device according to claim 11 , wherein the quantum dot comprises: a two-dimensional material.
13. The display device according to claim 11 , wherein the quantum dot is electromagnetically coupled with a three-dimensional structure of dimension less than 400 nanometers.
14. The display device according to claim 11 , wherein the electrically switchable light valve or the electrically switchable light shutter comprises: a phase change material, or a phase transition material.
15. The display device according to claim 11 , further comprises: an optical filter, or a lens.
16. The display device according to claim 11 , further comprises: a camera sensor, wherein the camera sensor is in proximity to a display pixel.
17. A display device comprising:
(a) a light source of emitting a first light of a first color;
wherein the light source comprises: a vertical cavity surface emitting laser,
wherein the vertical cavity surface emitting laser comprises: two metallized mirrors,
wherein one metallized mirror comprises: a hole,
(b) a light emitting layer comprises quantum dots; and
wherein the quantum dots are in or on a photonic crystal,
wherein the light emitting layer absorbs a portion of the first light of the first color from the light source,
wherein the light emitting layer emits a second light of a second color,
(c) an electrically switchable light valve or an electrically switchable light shutter.
18. The display device according to claim 17 , wherein the quantum dot comprises: a two-dimensional material.
19. The display device according to claim 17 , wherein the quantum dot is electromagnetically coupled with a three-dimensional structure of dimension less than 400 nanometers.
20. The display device according to claim 17 , further comprises: an optical filter, or a microlens.