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Here's a simple question.
Device A and Device B have the same e-ink display from the same manufacturer.
Device A is eCarta HD. It has a ppi of 300. It has a capacitive layer laid onto it and bonded to the display.
Device B is eCarta HD. It has a ppi of 300. It has a capacitive layer laid onto it and bonded to the display.
Difference:
Device A has no other layers on top of it. You are looking directly at the e-ink display with the capacitive layer on top of it.
Device B has an extra glass layer on top of the capacitive layer, and it also has an air gap in between the capacitive layer and the glass layer.
Which do you think looks clearer? If your answer is Device B, then please provide the scientific explanation for why that extra layer of glass, along with an air gap, makes Device B look clearer. We are only interested in the science, not the subjective and unreliable perceptions of your eyes.
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