This is a simple friction-held case for a generic 3.5" micro-HDMI LCD display (640x480px), its controller (LQO35NC111-1HDMI+1AV PCB800850) and protective glass (RG3503-HC).
It should stay together with friction alone (as seen on the images), but in case it doesn't you can always add some minuscule amount of glue.
The author marked this model as their own original creation.