Why are there lines in my display?

Hi, I want to know what is ''causing ''the lines to appear in my moto x style display. Every time I turn-on the display, white lines start to appear on the display and after using my phone they flicker for sometime and then disappear (usually much faster if I use apps that have white background like chrome). But if I turnoff the display and then turn it back on they reappear. This cycle continues.!

They also don’t show-up if I take a screen-shot.

Please! tell me what is happening and also if I can fix it without replacing my display .

P.S.: I also sometimes notice ghost-clicks in bottom left corner of the display and usually occurs when the display is warm; as-if because of the warmth the electric-field is distorted by itself!