MICRO ASSEMBLED LED DISPLAYS AND LIGHTING ELEMENTS

摘要

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.

主权项

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;the patterned transparent non-emissive dielectric layer is absent from a second side of the LED opposite the first side; andfor each inorganic light-emitting diode of the plurality of inorganic light-emitting diodes, a surface of the first metal terminal and a surface of a second metal terminal share a plane.