Half of screen works, other half is black

Yes I cleaned it with 99% isopropyl alcohol. I have actually tried a total of 3 different displays, but from what I can tell a display with a cracked screen and the LCD is broke, it seems to be working fine on. It looks as if both sides of the screen work.

I will give it ultrasonic bath and maybe purchase a more original screen for the phone. They used rice to get the moisture out but I have always been told rice doesn't do a thing. They then kept the phone on for days so I got a weird feeling something happend. I will put it in the ultrasonic cleaner and see what happens

I have an ultrasonic cleaner, but I haven't used it much yet. I was wondering if anyone has any suggestions on what type of solution I should use in it. I know there is Branson IC but I really don't want to spend $90 on a bottle just yet. Anything else? I have hear scrubbing bubbles and acetone but I really have a hard time beleaving that will do anything!

I would avoid volatile chemicals like IPA and Acetone in an ultrasonic bath. When you heat them at ~65C and vigorously shake them. bad things can happen.

Are the three screens that don't work from the same supplier? You may have a bad batch of screens. Can you test them on a nother device to be certain if they are good?

Do not put those chemicals in there! I use distilled water and bransonic electronics cleaner in my ultrasonic bath. Yes, the chemicals are expensive, however, you use very little for each batch, and each batch should clean phones for months, before you need to make a new one. Equaling lots of profit, you'll make your money back, after you fix one phone. Check out Louis Rossmans video about it. Yeah, it's possible you have a bad batch of displays, it's happened to me before. These companies sell you $@$* parts, then don't do anything to help you