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Old 07-06-2010, 09:41 PM
clonmult clonmult is offline
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Originally Posted by jApi NL View Post
@ clonmult . The older LCD's are using CCFL type of lights . Normally with a constant light beam . With LED , backlight and edge , it is possible to dim the light on dark sides of the page . However not all LED screens are provided with this tech . The advantage is clear : darker spots , where the actual color is black or dark colored . This could explain also some energy saving . The scheme in Steve's article just shows two different screens . This is limiting drawing a general conclusions about screens , but for sure interesting .

Regards jApi NL
You haven't actually answered my question though, and have got OLEDs confused with "LED" TVs.

LED TVs do have a different backlighting technology to traditional LCD screens, but OLEDs don't have a backlight - its individual pixels that are turned on and off, and have their "own" individual lighting.

Totally explains why an OLED set to a black screen uses less juice (it also explains why the clock screensaver on the N85 looked so damn good).

Still doesn't explain why an older LCD, with constant backlight, would use less juice when set to a black screen, as the CCFL would be pumping out the same amount of light continually, just being filtered out as completely as the LCD shutters will allow.

Its just interesting


compelling, dark, n85, n86, nokia, reason, stick, theme

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