While I was in Iran, I noticed that digital displays used to show numbers were either displaying standard 'western' numbers (that is 1, 2, 3, ...) on a standard digital display like the one in figure 1 or displaying Arabic numbers on a matrix display, similar to the ones in figure 2.
Arabic numbers for some reason always pretty much stay the same, whichever font you use to display them. Letters can differ, although slightly, but numbers don't, really. The Arabic numbers can be seen in figure 3.
Arguably, it's no surprise matrix displays are needed for presenting Arabic numbers. And because these are more expensive than standard digital displays, it's also no surprise that many of these displays I saw in Iran actually were displaying western numbers.