dropped my iPhone and now there are colored hues appearing?

i dropped my iphone on a tile floor and there are no cracks on the screen but the colors are all messed up, theres a pure black line down the right side and its always there and the screen is otherwise fine when i unlock it but after about 20 seconds a pink hue appears as well as colored lines dragging from the colors displayed on my screen (for example if im on my home screen therell be blue lines dragging from the blue facebook app icon) ive heard this could be a cable loose in my phone and i hear rattling inside when i shake it so are there any guides for how to fix that specifically on iphone 6(preferably a video but written guides are fine)? or do i need to replace the lcd? thanks in advance