Chosen Solution
I have 2 identical Semi-transparent horizontal lines on my led TV. The line starts from the right but fades away so it doesn’t reach the left bezel of display. When i apply pressure to the right bezel (where the line stars) the line gets wider. Note: sometimes the display goes black with speakers still running, when i use the flashlight on TV i can see the faint picture on it. Is this related to the lines or a separate issue ? Update (09/28/2022)
Here are some pictures. The line is not much visible in colours but becomes visible once there isn’t much contrast or in darker colour. I noticed that the TV’s back cover gets hot around the line.
Hi Amine I suspect it’s something related to LED display issue but again it’s too early to say without seeing the pics. Try to view different color wallpapers and check does the same line appears or not.