LCD Display Dead

I came out to start my car today and noticed that it wouldn't start.
I've been having issues with a new battery which ill be returning.
Being the car was dead I hooked up a battery charger that I have and
set it to low and left it for about 5 min, came back and turn it onto
a starter mode and started the car up. After I got onto the road I
notice the LCD display was not functioning at all. I'm guessing I've
blown it or fried it or something similar, any advice or suggestions
on what may be wrong or how to fix it.

 

Since it occurred with a battery failure, I recommend seeing how it does
after the battery is replaced (or temporarily disconnect the battery now).
It is common for all sorts of car electronics to get a "dirty boot" if the
voltage is raised from something very low to 12 volts gradually. A power-on
reset usually fixes it right up.

Mike