Rain on Camera

Hello ,
I need some help if it’s possible to create droplets more realistic on camera, for the moment I have droplet on screen but it’s not natural for my part.
I create a "Material Domain " Post Process.
That’s my example :

I would like impacts odf droplets when they touch the screen , and then they slide to the screen or get dissolve when the camera is out of the rain .

So I appreciate your help .

I do some research and test, and i found the result. Thanks for the help.