Inside the Project MC2 video purse. (Actual video wall panel!)

This is rather high tech merchandise from a TV series called Project MC2. It's about a group of female government operatives engaged in covert activities to save the world.
The slightly hideous hard plastic bag is actually very well designed for what it is, and contains some jaw-droppingly advanced components for a toy. And by that I mean a proper LED module you'd find in full size video walls.
Even more impressive is that all the components used are off the shelf except for the mystery microcontroller under a blob of black resin.
Adafruit have an extensive PDF datasheet showing how to connect panels like this to an Arduino.
https://cdn-learn.adafruit.com/downlo...
Adafruit's main website:- https://www.adafruit.com/
Note that the display is "dumb". It is just a series of shift registers to load LED data across the display and some control lines for scanning 8 pairs of rows. It's actually so simple that with a 3V supply (to limit the current while abusing it) you can generate rogue data and row drive signals by running your fingers across the serial input connector pins. The simplicity of the display means that it doesn't do any fancy image storage on the panel. You have to keep firing out serial data and scanning the lines to get an image. When you realise how it works you suddenly recognise all the visual effects you get when sections of video wall fail. It's usually down to bad interconnects dropping colour data or clock/strobe/output-enable signals between boards.

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