Swedish company showcases first pyramid structure MicroLED display prototype

On May 5, Swedish Micro LED technology company Polar Light Technologies announced that the company has successfully manufactured the first microdisplay prototype based on its own patented pyramid structure Micro LED technology, which represents the feasibility of integrating the pyramid structure Micro LED front substrate into a CMOS backplane.

It is reported that PLT focuses on using atomic layer deposition technology to grow pyramid-structured gallium nitride Micro LEDs on silicon carbide substrates. This pyramidal structure is grown through a novel bottom-up technique without the use of etching technology, providing the LED chip with narrow beam characteristics, further improving the performance of Micro LED and maintaining sub-micron dimensions.


Compared with conventional LEDs, pyramid structure Micro LEDs can increase AR system efficiency by 50 to 200 times by improving internal and external quantum efficiency and enhancing light utilization. By reducing internal electric field interference and optimizing the interaction of charge carriers in quantum wells, Micro LEDs are able to produce more light and have a clearer, narrower emission spectrum. Therefore, PLT said that pyramid structure Micro LED is very suitable for applications such as augmented reality and micro projectors that require precise light control.

Pyramid Structure Micro LED