High-efficiency nanowire light-emitting diodes for augmented reality and virtual reality displays

Through 3D dipole cloud model, RGB (red, green, and blue) nanowire light-emitting diode (LED) structures are geometrically optimized to exhibit a narrower radiation pattern, weaker angular color shift, and higher optical efficiency. In comparison with micro-LEDs whose external quantum efficiency is dependent on the mesa size, these RGB nanowire LEDs are more efficient than micro-LEDs when the chip size is below 20, 80, and 10 mu m, respectively. As a result, nanowire LED is a promising candidate for augmented reality and virtual reality displays where high-resolution density and efficient directional light emission are desired.

Automated summary

The RGB nanowire light-emitting diode (LED) structures were optimized using a 3D dipole cloud model to achieve a narrower radiation pattern, reduced angular color shift, and higher optical efficiency. Compared to micro-LEDs, which have externally quantum efficiency depending on mesa size, the RGB nanowire LEDs are more efficient for chip sizes below 20, 80, and 10 μm, respectively. Therefore, nanowire LEDs show promise for augmented reality and virtual reality displays that require high-resolution density and efficient directional light emission.