[ILUG-BOM] Blackle - Black Google -- saves energy.
mohansn at gmail.com
Wed Oct 8 18:12:08 IST 2008
On Wed, Oct 8, 2008 at 6:58 AM, jtd <jtd at mtnl.net.in> wrote:
> On Wednesday 08 Oct 2008 13:24, Rony wrote:
>> The sites are about LCD-CRT comparisons. What I want to know is the
>> difference in power consumption between a CRT running a white image
>> and the same running a black image. IMHO, there is no noticeable
>> difference as the EHT power is generated all the time and the
>> control and signal processing circuits are running all the time.
>> The small differences in the cathode voltage and subsequent control
>> of the beam current does not make any power saving. The only
>> advantage may be to the eye as it reduces glare.
> Most of the power is consumed by the deflection circuits and the
> filament. Not the cathode which emits electrons. The brightness is
> determined by the acceleration grid (afair).
> With an LCD the backlight consumes substantial power and keeping a
> black image on screen makes no difference to the power consumption.
A little late in the day to comment, but pray tell me: what does this
discussion have to do with GNU/Linux?
Mohan S N
"Hell is empty
And all the devils are here"
- William Shakespeare, The Tempest, 1.2
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