|
i recall that amazon said that it perforates the bottom side of the light sheet to make the light diffract downwards. If there are inaccuracies in execution this might lead to a non-uniform diffraction/distribution of light and also coloration.
Didn't the Sony PRS-505 have a more rudimentary lighting sheet which just has light shine through the sheet? Maybe Kobo glo and Nook Glowlight use a more basic approach, too? Just speculating.
|