InGaN full-colour monolithic microLED displays

Toyoda Gosei has unveiled a full-colour InGaN monolithic microLED display produced by stacking and selective removal of light-emitting layers.

This breakthrough builds on this company’s development of a monolithic InGaN LED structure, detailed in a previous paper in Applied Physics Express, published in autumn 2023.

According to the Japanese chipmaker, while displays can be made by combining single-colour monolithic microLEDs emitting in the green, red and blue with a prism – this is a technology that has been commercialised – from cost-reduction and miniaturisation perspectives, a better option is to realise full-colour emission from a single monolithic microLED chip.