Quote:
Originally Posted by rolexconfuse
I'm not engineer but I don't get how the battery life can be short lived as the screen of an e-ink consumers less power than a back lit LCD. And the processor for an E-ink reader is is not where even close to a tablet's processor.
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Most larger displays have more pixels, which require more processing power to handle. Resolution aside, you still have to send the electricity over a larger area. The farther you send electricity, the more resistance it encounters, and and that effects voltage and the amount of current needed. Long story short, if you want to keep the same voltage, you have to send more power, which drains battery faster. As mentioned in a prior post, as the diagonal size grows, the surface area grows by leaps and bounds, and nearly the entire back side of the panel is covered. 6" display has 16.7 square inches of surface area, and while not exact calculations (but good enough for this example), you figure the A4 letter sized page is 95 square inch display, which is about 5 and a half times bigger, and roughly 5 and a half times more current to keep same voltage.