1) Buying with factory original box (price lower, but may have some screen with pixels)
2) Testing one by one, make sure every screen with no pixels, price higher
GWD LCD Panel established in 2008, main products are mobile phone lcds, tablet lcds, laptop lcds (touch screen, lcd with touch digitizer and lcd assembly), also there is few models for desktop, cover nearly all tha laptop brand.
There is 1 warehouse in HK and 2 LCD shops in Shenzhen, company located in Shenzhen Huaqiangbei (shenzhen electronics parts center).
Professional testing and packing, good quality products and excellent service