Got a 4 digit LCD but...

JimboZA:
@Nick I think OP meant it wasn't actually that model, but a 10-pin-per-side similar one

Oh I see. That picture had 20 pins per side.

The site where I bought the display does not show any description, brand or model about it.

Doesn't sound like a bargain if you have no idea how to use it.

If you are going to buy online (as I do) I suggest you buy something that has Arduino support. Stuff like the displays from Adafruit, Sparkfun, etc.