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Originally Posted by Sweetpea
Not only the Pixel Qi screens have the property. As I can read my PDA perfectly in bright sunlight with the backlight turned off. Every single transflective screen has this property. Only Pixel Qi has taken the concept of transflective screens and has made some updates on it.
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Transflective LCDs aren't new, but Pixel Qi is more than a tweak on past technologies.
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On a normal transflective LCD, there is a colour filter that sits on top of the display with (usually) red, green and blue filters for each subpixel. Underneath the panel is the equivalent of a 2-way mirror. There are two problems with this:
1) The colour filter massively reduces the brightness of the light, both as it goes in and again as it comes out
2) The mirror layer cuts down on the amount of light that can get through from the backlight
What that means is that standard transflective displays are darker and less efficient indoors than a transmissive display and also that outdoors, they only are about 5% reflective.
Pixel Qi have totally redesigned the layout of most elements of the LCD in order to get around those two problems so that it reaches equivalent performance to electrophoretic displays (such as e-ink) in black & white outdoor performance while retaining the ability to do colour and animations.
It also outputs at higher resolution in b&w mode than the electrophoretic displays, so text looks much better.
I can't wait to have a laptop that's actually usable outdoors! I've tried the Tosh and it's disappointing.
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