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I was curious. I know that for two screens of the same size and type, the one with higher pixel density will consume more battery. But what if there are two screens with the same resolution but different screen sizes ?

An example would be the effect on battery life of the screens of Sony Xperia U and Sony Xperia Sola both of which have the same WVGA resolution but screen sizes of 3.5 and 3.7 inches respectively.

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This has not really anything to do specifically with Android and seems off topic as per the FAQ to me (maybe better suited for electronics.stackexchange.com). Some hints though: bigger screens -> more backlight power, higher resolution (more pixels) -> needs more GPU/CPU power, finer structures -> less light will pass the display, needs brighter backlight (more power). – ce4 Dec 3 '12 at 11:10
Most of the power consumed by a screen is the backlight (of the non AMOLED types), which will vary by size. – cjk Dec 3 '12 at 11:54
Is there a problem to be solved here? "I'm curious" questions are generally off-topic. (FAQ) – Al Everett Dec 3 '12 at 13:36

closed as off topic by roxan, ce4, Flow♦, Izzy, Zuul Dec 3 '12 at 13:35

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