DELL Venue Pro 7140 visible digitizer grid

[porlock]

Hi i buy a DELL Venue Pro 7140 on internet auction, I think that it have not original digitizer because I can clearly see a digitizer grid on screen, I attached a photography but I can?t catch exactly how it is look like. On photography You can see only some horizontal lines but on screen all matrix is visible.

http://i.imgur.com/WyBUnK6.jpg