On Wed, Oct 8, 2008 at 6:58 AM, jtd <[EMAIL PROTECTED]> 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. > > -- > Rgds > JTD > -- > http://mm.glug-bom.org/mailman/listinfo/linuxers >
A little late in the day to comment, but pray tell me: what does this discussion have to do with GNU/Linux? Regards, Mohan S N -- "Hell is empty And all the devils are here" - William Shakespeare, The Tempest, 1.2 -- http://mm.glug-bom.org/mailman/listinfo/linuxers
