Great, 2 defective pixels on my device, symmetric too, seems almost made on purpose
!
Photo taken with the mobile phone and illumination provided by an incandenscent lamp
(good old Russia) but the definition is high enough to see both defective pixels. The one on the right of the "BOOX" logo is more blurred because the light from the lamp was coming from that direction. Any other sign you may see was not due to the screen, I wiped it with an anti-static cloth to be sure. The two pixels behave differently in both kind of chesses but with my mobile phone I could not capture the dark-on-dark version
I'll ask my girlfriend for her Canon EOS camera if Booxtor wants to see a clearer, more defined picture. The problem however is definitely there. A single mp is so small that I've not noticed any problem yet while reading, but it's annoying nonetheless