The screen of my iPhone 13 showed some green, pink and black vertical lines.

I have this iPhone 13 as a secondary phone so I'm not used to using it, today when I turn it on that the screen had these 3 vertical lines. It is a phone that, as I mentioned above, is not used much and is in perfect condition and has not suffered blows. I am worried to know that the equipment is already out of warranty, I have seen that several people are already facing the same problem and the lines are exactly the same as those of my device.