My phone ring but no display others are okay

[Mzislam99]

Every time when a call come to my cell i can't receive the call because my phone screen goes off. After the ring off i have to open dialer to see caller detail. Please help me.

 

[B. Diddy]

Welcome to Android Central! Are you saying the screen goes blank even before you're able to answer the call, or does it go blank immediately after you swipe to answer?