Tv needs a new screen, covered only by accidental damage by insurance.... Not economical to repair.
Vertical line, screen fault.
Vertical line, manufacturer's fault, screen needs to be replaced.
Horizontal lines on the screen.
It's a screen fault, not accidental damage. Screen needs to be replaced.
OLED screen burn-in.
OLED screen needs to be replaced.
Flickering part of the screen
Bottom part is flickering, sometimes for short time, also faulty screen.
OLED faulty screen.
OLED screen fault, screen needs to be replaced.
Some examples of faulty screens, if there is no accidental damage, no impact on the screen and your TV is under manufacturer's guarantee or you have insurance not covering accidental damage you can claim