Hi,
I recently purchased Nokia's new flagship 1020 phone and have discovered what appears to be a problem with their OLED screens (used on the 1020 and 928) - just wondered if anyone else has?
It appears that the red pixels are not refreshing as quickly as their blue and green counterparts, resulting in ghosting when scrolling areas of certain colours (ie purple blocks/tiles, bold purple text such as 'used' links in Google) on a white background. Thick black text can also be affected.
The quickest way to test if your screen is the same is to change the theme to light/indigo and scroll around the home screen. The effect varies depending on the tiles in use but can easily be seen as colour smudges over the white phone icon. As it's red, it also happens on the Office icon. I find it actually more annoying when scrolling Google search pages after having used a couple of links.
I have explained the situation to Nokia care who have been very helpful and have both swapped out my screen - claiming to have seen the issue when they received my handset - and then swapped my handset completely when the new screen had the same problem. This still hasn't cured it and I have seen the issue on every 1020 I've used in stores (7) and also on a 928.
I am assuming the problem has been missed by many as most likely use the default dark theme (looks best) and reviewers have likely concentrated on new features like the camera having seen Windows Phone 8 before.
I am hoping this is some kind of driver issue as it would clearly go against the claims of Puremotion HD+ in this video
Nokia PureMotion HD+ Display Technology - YouTube