|If it is OK on TV then it must be a screen fault, or something that immediately drives the screen, including its cabling. It can't be the display module or drivers because a problem on those would affect TV too.|
If it is a very predominant blue then you could check the connection between the motherboard and the screen. A connector could have worked loose or the cable itself could be faulty. Laptop cables move when you hinge the screen to and fro so sometimes the cables wear out in that area.
Sorry, not easy to be any more definite.
Always pop back and let us know the outcome - thanks
message edited by Derek