Lines across my lcd even after fix

Hi,

I've replaced my lcd (pixel 6a) due to vertical lines appearing across the screen. At first they would disappear when firmly pressing the lower part of the screen but gradually more started to appear.

The replacement screen fixed the issue for about two weeks but now they are starting to form again.

Could there be something else wrong with my phone? Anyone have any insight?

Thanks,

rel.

P.S what are the little silvery connecting pads that touch the big silvery patch at the back of the lcd? could thy not be touching right and cause this issue?