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Old 09-06-2011, 04:35 PM   #36
pdurrant
The Grand Mouse 高貴的老鼠
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Quote:
Originally Posted by cHex View Post
Since this is a reflective technology rather than a backlit one, I don't see how it can "reduce brightness" any more than red ink, for example, reduces the brightness of a magazine page by coating a portion of it. Won't the filter simply absorb the applicable wavelengths present in the ambient lighting?

Likewise, how can the filtering reduce resolution if the color is a matter of filtering the exact same microcapsules as before? Would it be in the sense that border microcapsules will not be all filtering the same color, giving the appearance of a fuzzier edge?
An individual pixel in a reflective display can (at best) reflect 100% of the light falling on it. By adding a colour filter, you are deliberately absorbing some of the light instead of reflecting it. This reduces the brightness of the display.

The resolution isn't dependent on the microcapsules, but on the colour filter in front and the TFT driving plane behind the microcapsules. Each colour pixel is made up of four sub-pixels, so the colour resolution is half the black and white resolution.
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