Protective glass

[m.cossi]

We are happily using a NHD-4.3-480800EF-CTXP#, that we protect with a relatively thick (3mm) silkscreened glass with antiglare treatment.
The only problem is that the silkscreened border is rather obvious and we would really like to get closer to the nearly perfect black slab look found in upscale modern smartphones.

Any suggestions?

Thanks in advance
--m