Screen touch not responding IPad 2 air

Hello good people, hope I’ll get some help !

Few days ago I left my iPad 2 air charging overnight and next day it stopped responding to touch, only thing is working is home button/power up/volume(+/-).

I’ve tried hard reset as well as restoring it to factory settings and updating it to newest version by ITunes, but still it will power up and screen is not responding…

I haven’t dropped it and it didn’t show any signs of problems before. 

Is there anything else would you recommend to try (software wise) or is it 100% digitizer fault as I assume.

thank you for your response,

Krys