Achieving Matrix Quantum Dot Light-Emitting Display Based on All-Inorganic CsPbBr3 Perovskite Nanocrystal Composites

We present a display consisting of a 64-cell quantum dot (QD) light-emitting diodes (LEDs) array manufactured by spin coating and steel plate design evaporation technology. The QDLED pixels in the array can be driven independently. The surface of perovskite nanocrystal (NC) composite was modified by using pure natural material aloe-vera gel as the organic precursor to obtain high-quality narrow band photoluminescence emission all-inorganic CsPbBr3 perovskite NC composites. Here, an open-source Arduino microcontroller unit was used as the dynamic micro-control terminal, combined with a stepdown module and four motor drive modules to make the display driver circuit. Finally, a 99% operating rate and a maximum brightness of 3366 cd m(-2) were achieved in the 8 x 8 perovskite QDLEDs array display. Furthermore, an electroluminescence dynamic pattern display based on a 64-cell QDLEDs array display has been successfully demonstrated. This study demonstrates the potential of perovskite devices for next-generation displays.

Automated summary

In this study, a display consisting of a 64-cell quantum dot light-emitting diodes (QDLEDs) array was presented, with high operating rate and maximum brightness achieved. The surface modification of perovskite nanocrystal composite using aloe-vera gel as the organic precursor enabled high-quality narrow band photoluminescence emission. The use of an Arduino microcontroller unit for dynamic micro-control terminal and motor drive modules for the display driver circuit demonstrates the potential of perovskite devices for next-generation displays.