APPARATUSES INCORPORATING MICRO-LEDS AND METHODS FOR FABRICATING THE SAME
In accordance with one or more aspects of the present disclosure, an apparatus incorporating micro-LEDs is provided. The apparatus may include a first plurality of light-emitting devices for emitting light of a first color, a second light-emitting device for emitting light of a second color, and a light-conversion structure that converts light emitted by at least one of the first plurality of light-emitting devices into light of a third color. The first plurality of light-emitting devices may be fabricated on a substrate. The second light-emitting device is fabricated on a conductive via that is fabricated on the substrate. The light-conversion structure may include a plurality of quantum dots.
1 . An apparatus, comprising:
a first plurality of light-emitting devices for emitting light of a first color;
a second light-emitting device for emitting light of a second color; and
a light-conversion structure that converts light emitted by at least one of the first plurality of light-emitting devices into light of a third color, wherein the light-conversion structure comprises a plurality of quantum dots comprised in a nanoporous structure.
2 . The apparatus of claim 1 , further comprising an electrode layer fabricated on the first plurality of light-emitting devices and the second light-emitting device.
3 . The apparatus of claim 2 , wherein the electrode layer comprises a transparent electrode material.
4 . The apparatus of claim 3 , wherein the transparent electrode material comprises indium tin oxide.
5 . The apparatus of claim 2 , wherein the electrode layer provides ohmic contact for the first plurality of light-emitting devices and the second light-emitting device.
6 . The apparatus of claim 2 , wherein the electrode layer directly contacts a portion of a top surface of the second light-emitting device.
7 . The apparatus of claim 6 , wherein sidewalls of the second light-emitting device are covered by a dielectric material.
8 . The apparatus of claim 6 , wherein the electrode layer directly contacts at least a portion of a top surface of each of the first plurality of light-emitting devices.
9 . The apparatus of claim 2 , further comprising a dielectric layer fabricated on the electrode layer, wherein the light-conversion structure is fabricated in the dielectric layer.
10 . (canceled)
11 . The apparatus of claim 9 , further comprising a plurality of micro-lenses fabricated on the dielectric layer and the light-conversion structure.
12 . The apparatus of claim 1 , further comprising a substrate, wherein the first plurality of light-emitting devices is bonded to a first plurality of conductive pads of the substrate, wherein the second light-emitting device is electrically connected to a second conductive pad of the substrate through a conductive via.
13 . The apparatus of claim 12 , wherein the first plurality of light-emitting devices is bonded to the substrate through a first plurality of conductive bonding layers.
14 . The apparatus of claim 12 , wherein the conductive via is fabricated on the second conductive pad of the substrate.
15 . The apparatus of claim 14 , wherein the conductive via is bonded to the second conductive pad of the substrate.
16 . The apparatus of claim 13 , wherein the first plurality of light-emitting devices is further bonded to the substrate through a first dielectric bonding layer.
17 . The apparatus of claim 13 , wherein the second light-emitting device is bonded to the conductive via through a second conductive bonding layer.
18 . The apparatus of claim 17 , wherein the second light-emitting device is further bonded to the conductive via through a second dielectric bonding layer.
19 . The apparatus of claim 1 , wherein the first color comprises blue light, wherein the second color comprises green light, and wherein the third color comprises red light.
20 . The apparatus of claim 19 , wherein each of the first plurality of light-emitting devices and the second light-emitting device is a micro light-emitting device.