Display with color conversion

1. A color-conversion structure, comprising:

an article comprising a color-conversion material disposed within a color-conversion layer, wherein the color-conversion material re-emits or redirects light by absorbing electromagnetic radiation of a relatively higher frequency and emitting electromagnetic radiation of a relatively lower frequency;

at least a portion of a tether connected to the article, wherein the at least a portion of a tether extends from the article.

2. The structure of claim 1 , wherein the article comprises:

a first layer;

the color-conversion material disposed on and in contact with the first layer; and

a second layer disposed on and in contact with the color-conversion material, the first and second layers encapsulating the color-conversion material.

3. The structure of claim 1 , comprising a micro-light-emitting diode (micro-LED) having a light-emitting side disposed to emit light toward the color-conversion material.

4. The structure of claim 3 , wherein the micro-LED is a solid-state laser.

5. The structure of claim 1 , comprising:

a source substrate having one or more sacrificial portions;

the color-conversion layer disposed on or over each of the sacrificial portions; and

the tether extending from a periphery of the sacrificial portion.

6. The structure of claim 5 , comprising a micro-light-emitting diode (micro-LED) having a light-emitting side disposed to emit light toward the color-conversion material and wherein the color-conversion material is located between the micro-LED and the sacrificial layer.

7. The structure of claim 5 , comprising a micro-light-emitting diode (micro-LED) having a light-emitting side disposed to emit light toward the color-conversion material and wherein the micro-LED is located between the color-conversion material and the sacrificial layer.

8. The structure of claim 1 , comprising a micro-light-emitting diode (micro-LED) having a light-emitting side disposed to emit light toward the color-conversion material and, optionally wherein the micro-LED is a micro-transfer printable or micro-transfer printed micro-LED, forming a pixel structure.

9. The structure of claim 8 , comprising a transparent destination substrate and wherein the pixel structure is disposed on the transparent destination substrate.

10. The structure of claim 8 , comprising a destination substrate and wherein the pixel structure is disposed on the destination substrate and the color-conversion material is located between the micro-LED and the destination substrate or the pixel structure is disposed on the destination substrate and the destination substrate is located between the micro-LED and the color-conversion material.

11. The structure of claim 8 , comprising a destination substrate and wherein the pixel structure is disposed on the destination substrate and the micro-LED is located between the color-conversion material and the destination substrate.

12. A color-conversion structure, comprising:

a source substrate having one or more sacrificial portions; and

one or more pixel or sub-pixel structures, each pixel or sub-pixel structure comprising:

an article comprising a color-conversion material that re-emits or redirects light by absorbing electromagnetic radiation of a relatively higher frequency and emitting electromagnetic radiation of a relatively lower frequency disposed within a color-conversion layer on or over each of the sacrificial portions,

a micro-light-emitting diode (micro-LED) having a light-emitting side disposed to emit light toward the color-conversion material, the article disposed on the micro-LED on a side of the micro-LED opposite the sacrificial portion, and

one or more tethers, each tether extending from the micro-LED.

13. The structure of claim 12 , wherein the micro-LED is an organic or inorganic solid-state laser or an organic or inorganic semiconductor laser.

14. A display, comprising:

a display substrate;

an array of color-conversion structures disposed on the display substrate, each color-conversion structure comprising a micro-light-emitting diode (micro-LED) disposed to emit light toward an article comprising a color-conversion material on the display substrate, wherein the color-conversion material re-emits or redirects light by absorbing electromagnetic radiation of a relatively higher frequency and emitting electromagnetic radiation of a relatively lower frequency; and

at least a portion of a tether extending from the article.

15. The display of claim 14 , wherein the micro-LEDs are lasers.

16. The display of claim 14 , wherein each micro-LED has an anode and a cathode disposed on a same side of the respective micro-LED and, optionally, the anode and cathode of a respective light emitter are horizontally separated by a horizontal distance, wherein the horizontal distance is from 100 nm to 500 nm, 500 nm to 1 micron, 1 micron to 20 microns, 20 microns to 50 microns, or 50 microns to 100 microns.

17. A display, comprising:

a display substrate;

an array of color-conversion structures disposed on the display substrate, each color-conversion structure including a micro-light-emitting diode (micro-LED) disposed to emit light toward an article comprising a color-conversion material on the display substrate, wherein the display substrate is between the article and the micro-LED and the color-conversion material re-emits or redirects light by absorbing electromagnetic radiation of a relatively higher frequency and emitting electromagnetic radiation of a relatively lower frequency.

18. The display of claim 17 , wherein the micro-LEDs are lasers.

19. A method of making a display, comprising:

providing a source wafer and a source substrate;

forming a plurality of micro-LEDs on the source wafer and a corresponding plurality of color-conversion structures on the source substrate, wherein the color-conversion structures each comprise a color-conversion material that re-emits or redirect lights by absorbing electromagnetic radiation of a relatively higher frequency and emitting electromagnetic radiation of a relatively lower frequency;

micro-transfer printing the micro-LEDs onto the color-conversion structures to form a plurality of respective pixel structures or micro-transfer printing the color-conversion structures onto the micro-LEDs to form a plurality of respective pixel structures; and

micro-transfer printing the plurality of pixel structures onto a destination substrate to form the display.

20. A method of making a display, comprising:

providing a source wafer and a source substrate;

forming a plurality of micro-LEDs on the source wafer and a corresponding plurality of color-conversion structures on the source substrate, wherein the color-conversion structures each comprise a color-conversion material that re-emits or redirect lights by absorbing electromagnetic radiation of a relatively higher frequency and emitting electromagnetic radiation of a relatively lower frequency; and

micro-transfer printing the micro-LEDs onto a destination substrate and micro-transfer printing the color-conversion structures onto respective micro-LEDs or micro-transfer printing the color-conversion structure onto a destination substrate and micro-transfer printing micro-LEDs onto respective color-conversion structures to form a plurality of respective pixel structures forming the display.

21. A method of making a display, comprising:

providing a source wafer and a source substrate;

forming a plurality of micro-LEDs on the source wafer and a corresponding plurality of color-conversion structures on the source substrate, wherein the color-conversion structures each comprise a color-conversion material that re-emits or redirect lights by absorbing electromagnetic radiation of a relatively higher frequency and emitting electromagnetic radiation of a relatively lower frequency; and

micro-transfer printing the micro-LEDs onto a first side of a destination substrate and micro-transfer printing color-conversion structures onto a second side of the destination substrate opposite the first side and in correspondence with the micro-LED to form an array of pixels in the display.