MacBook Pro Display Issue

Hi All,

I am currently having mac book pro with touch bar, recently started having issue with Display.
Normal when i start my mac, the display is working properly and as the time goes on, slow and slow my display starts fading and after 1-2hrs it blacken out. If i connect my mac with external monitor, my monitor display works fine but the screen is still blacken.

And once i shutdown the mac for 8-10 hrs depending on my previous usage and then i turn it on again the display works fine for another 1-2 hrs before going black.

Please help me incase anyone has encounter this kind of issue.