Replace battery now have a white screen

I'll give a little history. I replace the battery before the iPod would not turn on with out being plugged in. I got a replacement battery and now the iPod has a white screen.

I also cracked the screen. I don't know if the cracked screen is the source of the white screen. It also charges up.

The iPod boots up with white screen. It connects to iTunes. I reset the iPod in iTunes it reset loaded the music into it.

Should i replace the screen on iPod, is it worth it? Any way of testing to see if it's something else.