Striped color distortions on Nokia 300 Xa ...

I count 13 vertical stripes, each 21 millimeters wide. Odd stripes (counting from left) are ok, even stripes distort the colors. Gray turns into a faint magenta, bright areas cause horizontal "leakage" to the right on even stripes.

Still some time ago bending the display (pushing with thumbs in the middle, pulling the sides) would fix the picture for some minutes before the stripes would return. Currently bending has no effect.