Vertical lines visible in white background and grey background

[Manish28]

Dear Sony,

                                 I had bought sony xperia SP. I had found that vertical lines are visilbe on my sony xperia SP in white colured background and grey colur and it irritates me. While opening browser, calender, message menu, playstore. I dont know what it is. But i think its hardware problem. Plz reply me for this issue.

[Uliwooly]

That's probably the digitizer, could you elaborate a bit more