Fixing the mirror on the screen

[Jagsi]

Hello,

I am just before ordering the mirror for my screen. As you can see in the picture there is a border around my screen which is a little higher than the screen itself

I am not sure what size of the mirror I should order
If I order the exact size of the screen including the border (the will be a gap between mirror and screen from about 0,6mm)- is there a problem with the quality/visability or whatever? Or is that not really a problem?
Please share you experience and knowledge with me

thank you

[Serge]

@Jagsi that is the problem. Remove plastic border from the screen. This will solve the problem.