Okay, so I did some research to determine the type of screen needed. From what I've found it seems that the Dingoo A320 has a 2.8 inch, 37 pin, 240x320, TFT, no touch LCD screen. Please correct me if I'm wrong.
There are plenty of those on AliExpress and the prices vary around $5. Although the screens have different drivers (symbols starting with ili) and different interface (typically 16 bit). Frankly I have no idea what type of driver is needed and what's the interface, so any suggestions are welcome.
Furthermore I finally had the time to take it apart in hopes of finding symbols on the current LCD, that would lead me to the type required for replacement. Unfortunately googling the symbols from the screen did not give any results.
Photos of the current screen:
So onece again I'm asking you for your support. Thank you!