μLEDs are LEDs with a very small chip size (down to single digit microns) which can be directly used as pixels on a display device. Due to the viewer seeing the LEDs directly this allows for higher contrast, response times and efficiency over traditional LCD technology, and their small size and high power density opens them up for wearable applications such as smartwatches and AR/VR headsets. μLEDs, however, struggle to represent colours across the spectrum with red in particular providing a real challenge for the industry, with traditional colour conversion techniques such as phosphor being insufficient due to physical size constraints. Due to their small size and high absorbance characteristics, CFQD®quantum dots provide an ideal solution to this issue. Similar to OLED colour conversion applications a thin layer of CFQD®quantum dots can be applied to the top emitting surface of the μLED to down convert the emission to those required for a full colour display. In addition, this technique allows for the colour conversion of blue μLEDs grown on one substrate, eliminating the need to bring multiple coloured LEDs together in an array for a display using expensive and time consuming manufacturing techniques.
