[Gllug] Why we still like CRTs

[Andrew Back]

On (03:04 21/11/09), general_email at technicalbloke.com wrote:

> My Syncmaster 171N monitor draws 31W regardless of whether the screen is
> all white or all black. Guess blackle.com won't save the world after all!

AFAIK the pixels in LCD monitors just 'gate' light produced by the
backlight, and since this is always on I can't see how rendering darker
images would consume less power. Unless the gates are normally closed and
require current to open and let light through... Compared with CRTs and
plasma displays where you have electrons hitting a phosphor or gases being
electrically excited in order to produce light, and where you would imagine
that having to do less of this would mean drawing less power.

Cheers,

Andrew

-- 
Andrew Back
mailto:andrew at osmosoft.com
http://carrierdetect.com
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