Hi Bjorn,
if the display still has the protective film on it and the scratch is on it, you don¡¯t have to worry. You take off the protective foil and you don't see it anymore. If you have previously removed this protective film and then experience damage, it is advisable to consider getting an LCD display as a replacement. I looked at several ads by the time I found the right connection here, so I have a spare that I tried and it works fine.
You can see this testing on my website. If you are interested in the source of supply, I will gladly give you.
73, Gyula HA3HZ
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*** If you are not part of the solution, then you are the problem. ( ) ***
Gyula Molnar