Chosen Solution

Samsung UE40h5500 Hello, is this repairable? Is it problem with board, panel or backlight? Thanks

https://imgur.com/a/7sdsP

@kukiak going by the uneven pattern it looks like your LED backlight strips have failed. The colors could be related to a bad video processor on the main board. You’d have to open it up and post some good pictures of all of your boards with your question. Use this guide Adding images to an existing question for that. It will allow us to see what you see. The LED strips are replaceable but can be a bit of a pain to work on since you will have to remove the panel etc.