After replacing screen module, picture quality is course and unstable, also has a donut shaped blue ring on lower screen. Should perhaps used original apple parts, I strongly suspect this picture display is totally inferior quality flicked off into spare parts market.
Great experience replacing display, however I won't waste my time with this product again.
reassembly : use a small dry paint brush to remove dust and crime from display screen to avoid spots .
Had to pick out resin with dentist tool to enable Philips driver to engage screw heads.
Need to be very slow and careful with sharp end of dentist pick.
the above comment, do not use metal tools on ribbon.
this would likely to tear ribbon or damage plastic tab, its good practice on any micro PC boards.