Micro LED apparatus including color conversion structures and methods of manufacturing the same
Apparatus, systems, methods, and articles of manufacture to generate, trap, and convert light using a micro light emitting diode (LED) or similar device are disclosed. An example apparatus includes a first mirror to reflect a first wavelength light and a second wavelength light. The example apparatus includes a micro LED on the first mirror, the micro LED to generate the first wavelength light. The example apparatus includes a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light. The example apparatus includes a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
1. An apparatus comprising:
a first mirror to reflect a first wavelength light and a second wavelength light;
a micro light emitting diode (LED) on the first mirror, the micro LED to generate the first wavelength light;
a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light; and
a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
2. The apparatus of claim 1 , wherein the second mirror includes an array of nanoparticles on a dielectric substrate.
3. The apparatus of claim 2 , wherein reflectance of the first wavelength light and transmission of the second wavelength light are based on a diameter of the nanoparticles and spacing between the nanoparticles.
4. The apparatus of claim 2 , wherein the nanoparticles include at least one of cylindrical nanoparticles or cubic nanoparticles.
5. The apparatus of claim 1 , wherein the second mirror includes a grating of holes formed in a dielectric material on a substrate.
6. The apparatus of claim 5 , wherein reflectance of the first wavelength light and transmission of the second wavelength light are based on a diameter of the holes and spacing between the holes in the grating.
7. The apparatus of claim 1 , wherein the micro LED includes blue light generating micro LED.
8. The apparatus of claim 7 , wherein the first wavelength light includes blue light and the second wavelength light includes at least one of red light, green light, or infrared light.
9. The apparatus of claim 1 , further including a transparent conductive oxide layer between the micro LED and the quantum dot film.
10. The apparatus of claim 1 , wherein the apparatus forms part of a display for an electronic device.
11. A display for an electronic device, the display comprising:
memory; and
a plurality of light-trapping micro light emitting diode (LED) devices, each light-trapping micro LED device to include:
a first mirror to reflect a first wavelength light and a second wavelength light;
a micro light emitting diode (LED) on the first mirror, the micro LED to generate the first wavelength light;
a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light; and
a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
12. The display of claim 11 , wherein the second mirror includes an array of nanoparticles on a dielectric substrate.
13. The display of claim 12 , wherein reflectance of the first wavelength light and transmission of the second wavelength light are based on a diameter of the nanoparticles and spacing between the nanoparticles.
14. The display of claim 11 , wherein the second mirror includes a grating of holes formed in a dielectric material on a substrate.
15. The display of claim 14 , wherein reflectance of the first wavelength light and transmission of the second wavelength light are based on a diameter of the holes and spacing between the holes in the grating.
16. The display of claim 11 , wherein the micro LED includes blue light generating micro LED.
17. The display of claim 16 , wherein the first wavelength light includes blue light and the second wavelength light includes at least one of red light, green light, or infrared light.
18. A method of producing a light-trapping micro light emitting diode (LED) device, the method comprising:
forming a first mirror to reflect a first wavelength light and a second wavelength light;
depositing a micro LED on the first mirror, the micro LED to generate the first wavelength light;
depositing a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light; and
forming a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
19. The method of claim 18 , wherein the forming of the second mirror includes depositing an array of nanoparticles on a dielectric substrate, wherein reflectance of the first wavelength light and transmission of the second wavelength light are based on a diameter of the nanoparticles and spacing between the nanoparticles.
20. The method of claim 18 , wherein the forming of the second mirror includes etching a grating of holes in a dielectric material on a substrate, wherein reflectance of the first wavelength light and transmission of the second wavelength light are based on a diameter of the holes and spacing between the holes in the grating.
21. At least one non-transitory computer readable storage medium comprising computer readable instructions that, when executed, cause at least one processor to at least:
form a first mirror to reflect a first wavelength light and a second wavelength light;
deposit a micro LED on the first mirror, the micro LED to generate the first wavelength light;
deposit a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light; and
form a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
22. The at least one non-transitory computer readable storage medium of claim 21 , wherein the instructions, when executed, cause the at least one processor to form the second mirror includes depositing an array of nanoparticles on a dielectric substrate, wherein reflectance of the first wavelength light and transmission of the second wavelength light is based on a diameter of the nanoparticles and spacing between the nanoparticles.
23. The at least one non-transitory computer readable storage medium of claim 21 , wherein the instructions, when executed, cause the at least one processor to form the second mirror includes etching a grating of holes in a dielectric material on a substrate, wherein reflectance of the first wavelength light and transmission of the second wavelength light is based on a diameter of the holes and spacing between the holes in the grating.
24. A digital circuit comprising:
a light-trapping micro light emitting diode (LED) device including:
a first mirror to reflect a first wavelength light and a second wavelength light;
a micro LED on the first mirror, the micro LED to generate the first wavelength light;
a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light; and
a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
25. A system comprising:
a processing device including:
a communications chip; and
a light-trapping micro light emitting diode (LED) device including:
a first mirror to reflect a first wavelength light and a second wavelength light;
a micro LED on the first mirror, the micro LED to generate the first wavelength light;
a quantum dot film on the micro LED, the quantum dot film to convert the first wavelength light to the second wavelength light; and
a second mirror on the quantum dot film, the second mirror to reflect the first wavelength light and transmit the second wavelength light.
26. An apparatus comprising:
means for reflecting a first wavelength light and a second wavelength light;
means for generating the first wavelength light;
means for converting the first wavelength light to the second wavelength light; and
means for reflecting the first wavelength light and transmitting the second wavelength light.