TIL about "Charlieplexing", or how to use a reduced set of pins to drive a matrixed set of LEDs. https://en.wikipedia.org/wiki/Charlieplexing
That's going to be funny when you try to make a photograph on a short shutter time. Half the display will be off!
Re: PCB devboard the size of a USB-C plug
#71Super common technique. Aircraft cockpit videos usually exhibit stroboscopic effects because of the scan rate of the camera and the refresh rate of the displays, and those are very expensive devices.
Short shutter time photos are just not a case I think most displays are designed for.