iPad air 3rd gen and iPad pro 10.5 screens are identical there are no differences between the two display panels. The iPad air 3rd gen is locked at 60hz by software not hardware so yes an iPad air 3rd gen display would work fine on an iPad Pro 10.5 and vice versa. Also if you plug in an iPad Air 3rd gen display on an iPad Pro 10.5 the refresh rate of 120hz is available as both iPads have 120hz display panels. Like I said the Air 3rd gen is software locked at 60hz.