Display device

Patent metadata

Field	Value
Publication number	US-9923124-B2
Application number	US-201614999601-A
Country	US
Kind code	B2
Filing date	Jun 1, 2016
Priority date	Jan 31, 2011
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

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.

First claim

We claim:

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.

Assignees

• Mazed Mohammad A
• Mazed Sayeeda

Inventors

• Mazed Mohammad A
• Mazed Sayeeda

Classifications

• G09G3/00

  Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes · CPC title

• G06F3/017

  Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883) · CPC title

• G06F3/013

  Eye tracking input arrangements (G06F3/015 takes precedence) · CPC title

• G06F3/011

  Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00) · CPC title

• G09G2380/08

  Biomedical applications · CPC title