Android

its not the sceen digitizer .at least i dont think it is,but listen it was working fine with a cracked screen from being dropped.it worked untili i had it in back pocket, sat on it.
now there is no picture. only a crack of colorful light 1/2inch wide ,4 inches from bottom right corner cossing up slanted towards upper leftside of screen kinda resembles liquid/does any one know the name of part n reason it looks like this&,is it worth fixing?