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Originally Posted by HarryT
Forgive me for being pedantic, but I stand by what I said. There's no such thing (to the best of my knowledge) as a backlit transflective LCD screen - all such screens (if lit at all) have side-lighting, not back lighting. A transflective screen is opaque (it works by reflecting light, hence the name) and so cannot be backlit.
The point I was making, however, was that backlit screens, such as the iPad, cannot be read outside in full sunlight.
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Quote:
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Originally Posted by http://en.wikipedia.org/wiki/Transflective_liquid_crystal_display
A transflective liquid crystal display is a liquid crystal display (LCD) that reflects and transmits light (transflective = transmissive + reflective). Under bright illumination (e.g. when exposed to daylight) the display acts mainly as a reflective display with the contrast being constant with illuminance. Only in dim and dark ambient situations an auxiliary transmissive backlight should be provided.
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The essential component for a transflective LCD is the transflector, a polymer sheet that is reflecting and transmitting at the same time.
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I think you're confused with reflective LCD's. Which, if they have light, have side-lighting because their back layer is not transparent.
transparent: back-lit, not readable outside
reflective: non-back-lit, perfect readable outside, but not in dark conditions (unless side-lights are available)
transflective: combination of
transparent and re
flective. Can use backlights, and has good contrast in light areas without backlight.
We have two PDA's at home, one has side-lighting, the other one hasn't. The side-light is on the transparent one, the transflective doesn't have side-lights. The difference is huge.
But the Ipad uses a transparent technology as transflective removes some colour clarity. And I think that the majority wants perfect colours instead of the ability to read outside...