>Those pixels are always drawn anyway. In terms of LCD being "on" vs "off", yes, they are always "on". However, the pixels for extra GUI effects must still b

>Those pixels are always drawn anyway. In terms of LCD being "on" vs "off", yes, they are always "on". However, the pixels for extra GUI effects must still be "computed". For example, Apple recommends that the "parallax" feature can be turned off to help conserve battery power. Parallax requires cpu computation to "draw" even though those pixels are always "on". It's the same concept of disabling screensavers on the thousands of servers in datacenters. Even those those pixels are always on, computing the drawings in screensavers consume cpu. Multiply the waste that by thousands of servers and the company is paying extra electricity bills for no reason.