How remove colored vertical lines all over screen of my LED TV?

Alex Malozemoff vertical lines are most commonly caused by a bad t-Con board. I suggest to remove the back of your TV and to check the boards for any obvious damage etc. After that consider the T-con board. Part number for that is BN81-04162A

OK, I found even the simpler solution "JUST TAP ON THE BACK SIDE OF YOUR TV" lines go away haha...I was pleasantly surprised!! My TV is 7 years old

Lines that appear in this fashion can often be resolved by a simple re-seating of the cables that go to the panel. The voltage/current levels of the signal lines is so small that it doesn't take much dirt or corrosion to prevent data flow. Re-seating the cables can resolve this. If the simple re-seating does not resolve the problem, try applying heat or cold to the area on the T-con board. This too can show poor connections or a defective IC to confirm the location of the problem.

Hello my tv had got white vertical lines for last 1 month. Initially they disappeared after 5 minites or 10 minutes but later they didn't. I called michanic and he said there is moist in screen and it will have to be changed. It will cost almost equal to a new TV. I searched on net. And thanks to all people who share tips on net. I also used my mind and dried the scree and back part with a hair drier without opening it. And to my great surprise lines completely disappeared. I saved my 40000 rs. I am so so happy. I want to save others too that's why I m sharing it.

Just hit it from the back and it will work perfectly

On my Samsung,I had 3 SMALL vertical lines-2 in the center,1 on the left.After investigating,turns out it was the ribbon cables going into the screen. I needed to remove the bezel and top of the screen frame to access the ribbons and gently “diddle” them.The lines would disappear,and by placing a cardboard wedge under the ribbon,it would ultimately “fix” the lines.However,I do resell these sets,and dont want a cheesy fix TV coming back to me. A new t-con board wouldnt fix these lines. Basically,once you start seeing lines,your LCD panel has gone bad.Anything from the video driver boards on can not be replaced as they are hard wired and pressed at the factory.Diddling the ribbons into your screen panel itself may work,but its a cheesy fix.Im going to scrap this TV out.