LCD screen power consumption

Falls · 21st January 2005, 2:48 AM

I would like to know if If an LCD Laptop computer screen uses more or less power if large portions of the screen are black in colour. (help extend battery life), any one have any info?
F.

killerwombat · 21st January 2005, 10:09 AM

I believe (but I'm not definitely sure) that its is the backlight of the monitor that drains the most power. That is why powersave modes majorly drop the brightness. I don't think the actual LCD pixels use much power.

I could be wrong though.

jascii · 21st January 2005, 12:00 PM

Quote:

Originally Posted by Falls

I would like to know if If an LCD Laptop computer screen uses more or less power if large portions of the screen are black in colour.

No, the backlight is still running at the same intensity. You have to lower its brightness if you want to save juice.

21st January 2005, 2:48 AM	#1
Falls Member Join Date: Jun 2001 Location: Gun Cat @ Bikini Atoll Posts: 2,822	LCD screen power consumption I would like to know if If an LCD Laptop computer screen uses more or less power if large portions of the screen are black in colour. (help extend battery life), any one have any info? F. __________________ I plan to live forever or die trying.

21st January 2005, 10:09 AM	#2
killerwombat Member Join Date: Apr 2002 Location: Sydney, Aust. Trades: 221 Posts: 591	I believe (but I'm not definitely sure) that its is the backlight of the monitor that drains the most power. That is why powersave modes majorly drop the brightness. I don't think the actual LCD pixels use much power. I could be wrong though. __________________ PC: Core 2 Quad Q9400 @ 3.3 \| 8GB Corsair Dominator \| DFI LT-X48-T2R \| ATi HD3870 512MB \| Storm G4+MCW60+MCP-350+BIX