Quote:
Originally Posted by rkomar
To get the light even, the light layer also has a fine pattern etched into one surface to scatter some light back into the layer in specific areas. The light evenness is thus finely tuned for a completely flat layer. If the layer bends, then the light will no longer be even because the internal reflections will change significantly. Some areas will get darker and some brighter. I think that is the major limitation to using the light layer over a e-ink screen that can bend (whether from manufactured waviness or from the whole device bending when held). I think that the bending problem is more serious than the problem of distributing light over a bigger area.
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Good points, I think it is a given that the light layer cannot bend which is why it much be backed with glass that does not bend, even a little bit although temporary flexing is preferable to breaking. It must also be transparent or all is lost. Gorilla glass is the standard practice these days but the back layer where the E Ink lies doesn't need to be glass and it is the one that usually breaks. I do think the bigger area is a significant issue given the bending problem cannot be tolerated.
Dale