Can you take close-up photos of all sides and the top (cable entry)? some have makers logos or IDs, but those can be difficult to see as everything is the same colour.
Not a problem, a really appreciate your time. Since you guys were so helpful, I decided to follow up here with another question!
I am currently replacing the LCD screen on this device. I managed to find the exactly same screen on the net - very standard lcd apparently - model: G104SN03 V.5 (10.4 inch LCD screen)
The crimping on the wires are really bad so I want to make a new cable. I drawn a wiring diagram that links the pins on all the 4 connectors but not entirely sure on what that small "touch panel board" does and if it is a custom made or a generic part!?
The touch panel board is just an adapter from the flat ribbon cable to individual wires.
Make sure your replacement screen has the correct touch panel option - many models can either be without touch, with a resistive type or a capacitive type.
There are numerous types of generic FPC of FFC cable adapters available; you just need to match the conductor pitch in the cable and the number of ways; one example listing on ebay: