I am experiencing Display / Screen smearing/ghosting issue in my S4. When I scroll in menu I encounter black background. Besides that, sometimes i also encounter a purple haze on the grey bits of the menu and elsewhere. The effect is more noticeable when the brightness is turned down. Any solution for this? I have tried another Original display but I am encountering similar problem. I have already re-soldered display connector pins and checked each pin personally via Multi-meter, as well as other surrounding components. Any help is highly appreciated.