Exclamation [Q] t989 display fades away

i dropped my t989 from at least 4 feet after that it was off then i tried to start it again, since then it start's but the screen just fades off.
it show Samsung logo but with horizontal white/grey lines then after few seconds the all i can see are these lines.
so please kindly tell me what could be the issue is with my phone and what i need to do in order to get it fixed because i love this phone this phone is with me since one and a half years now.

please find pics attached for refference
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