Quote:
Originally Posted by sigma8
Remember that those Apple screens are capacitive touch-screens. They're picking up electrical impulses. The PRS-700 (and PDA's) have resistive touch screens, which work through mechanical pressure. I'm pretty sure the latter require the mechanical layers to be in front of the display, I don't know enough about screen design, but I can imagine that might have limited Sony's options.
I'm not ruling "stupid decision" out, but I have to wonder if it's really so clear cut. Anti-glare stuff is usually matte. The 505 is matte, just like the 700. It's just not as reflective, so when it's distributing that glare, there's not as much to distribute. The touch sensitive layers may be responsible for reflecting so much light back in the first place, which would be ugly glare whether matte or gloss.
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Like you I am not an expert on these screen designs, however, the 700's screen is hard, without a plastic sheet, ala a PDA. This in addition to the fact that it incorporates finger gestures leads me to believe that it is not resistive or mechanical.
Although both the 505 and 700 screens may be anti-glare to different degrees, I believe it is the distance from the e-ink screen to the touch screen on the 700 that makes the difference in the clarity. Sony may have believed this design necessary to incorporate the LED front light.