Post [Q] Lines going through some white areas on the screen????

So my gs3 has a replacement screen on it from a trusted seller, and this weird thing is happening where some icons, mostly white ones, like the play store, and message boxes in kik and stuff have these vertical black and red lines going through them. When i move the icons on the homescreen the lines seem to follow a pattern under the icon. When i am switching pages in the app drawer, the lines do not show up until the animation has finished. Also, this occurs in TWRP in some areas like the logo and all text. Does anyone know what is wrong?