Small lines on screen

My iPod was bough back in 2006, and untill 2010 used only on a Bose dock speaker, after 2010 it sat a drawer for 10 year and a week ago a decided to bring it back to life.

The battery was dead and wouldn’t even turn on when plugged, so I had to replace it, very easy part to source. When I removed the original battery noticed it was completly bloated.

New battery installed, and the iPod turn on right away. The problem is this two lines came up on the screen.

They seem to be black when the back is white, and grey/white when the screen is black as shown in the pictures.

Also, when the backlight is off, they disappear.

Already tried cleaning the LCD connector, and no luck.

Any possible solutions other than replacing the LCD?

After reading online regarding this type of issues, I decided to take the iPod apart and massaged the LCD… The lines have disappeared partially at least.

I’m not sure if its possible to totally remove this lines, probably only replacing the screen.