I am on my 4th screen now.

The first one broke after 3 months and it took 2 weeks to repair.
The second one broke after 1 month and again i had to wait 2 weeks.
The 3rd screen lasted only 10 days. This time i asked for a replacement unit and i had to wait over 4 Months. But i didn't get a replacement, they just swapped the display again.

I use my 770 daily and never turn it of on purpose.