Micro assembled LED displays and lighting elements
First Claim
1. An inorganic light-emitting diode display, the display comprising:
- a plurality of inorganic light-emitting diodes assembled in an array on a display substrate non-native to the plurality of light-emitting diodes, wherein;
each light-emitting diode of the array comprises a first metal terminal on a first side of the corresponding light-emitting diode horizontally separated from a second metal terminal on the first side of the same light-emitting diode by a horizontal distance;
the horizontal distance is from 100 nm to 20 microns;
the first side of the LED comprises one or more surfaces;
a patterned transparent non-emissive dielectric layer covers at least a portion of all of the surfaces of the first side of each light-emitting diode;
the patterned transparent non-emissive dielectric layer, the first metal terminal, or the second metal terminal cover all of the surfaces of the first side of the LED; and
the patterned transparent non-emissive dielectric layer is absent from a second side of the LED opposite the first side.
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Abstract
The disclosed technology provides micro-assembled micro-LED displays and lighting elements using arrays of micro-LEDs that are too small (e.g., micro-LEDs with a width or diameter of 10 μm to 50 μm), numerous, or fragile to assemble by conventional means. The disclosed technology provides for micro-LED displays and lighting elements assembled using micro-transfer printing technology. The micro-LEDs can be prepared on a native substrate and printed to a display substrate (e.g., plastic, metal, glass, or other materials), thereby obviating the manufacture of the micro-LEDs on the display substrate. In certain embodiments, the display substrate is transparent and/or flexible.
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Citations
20 Claims
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1. An inorganic light-emitting diode display, the display comprising:
a plurality of inorganic light-emitting diodes assembled in an array on a display substrate non-native to the plurality of light-emitting diodes, wherein; each light-emitting diode of the array comprises a first metal terminal on a first side of the corresponding light-emitting diode horizontally separated from a second metal terminal on the first side of the same light-emitting diode by a horizontal distance; the horizontal distance is from 100 nm to 20 microns; the first side of the LED comprises one or more surfaces; a patterned transparent non-emissive dielectric layer covers at least a portion of all of the surfaces of the first side of each light-emitting diode; the patterned transparent non-emissive dielectric layer, the first metal terminal, or the second metal terminal cover all of the surfaces of the first side of the LED; and the patterned transparent non-emissive dielectric layer is absent from a second side of the LED opposite the first side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification