Monolithic Vertically Stacked RGB LEDs for Small Micro-LED Displays with Ultrahigh Definition

Micro-light-emitting diodes (μ-LEDs) have been attractive as next-generation display technology for various applications such as smartphones/watches, vehicle displays, and wearable glasses for augmented and virtual reality. High definition is an important aspect for the displays to realize an excellent visual experience. There has been a strong demand to develop red LEDs using nitride semiconductors for monolithic integration of the three primary colors (RGB), which would lead to the realization of a nitride-based display with ultrasmall-size, full-color, and high-definition.