CurtPalme.com Home Theater Forum

**AnalogRocks**

I have been looking around the WWW and have found in general it is believed that CRT TV's use more power than LC and Plasma.

I do remember watching a TV show where they were talking about California's power grid when the flat screen TV's came out.
They said when the superbowl was coming up and people were switching from 19"=32" CRT over to 42"-55" LCD and Plasma sets the electricity demand was so great they had a brown out during the super bowl.

SO, do CRT TV's use more power than LCD and Plasma?
Are we comparing apples to bananas as most people up grade from 19" to 32" CRT to 42" + LCD/Plasmas is there really any power savings at all?

WanMan · Joined: 19 Mar 2006 Posts: 9668

I'm not sure that the power grid impact has more to do with flat-panel vs. direct view as much as it was people supersizing their displays. I went from 25" to 65" in direct view, but really that was rear-projection in CRT flavor. And at 400 watts it probably consumed more than the 50" plasmas.

Honestly, though, if the utilities are not paying attention to evolution in consumer electronics then how can they truly claim to be managing their capacity in the first place?

**AnalogRocks** · Posted: Thu Mar 10, 2011 11:07 am Post subject:

That is the point I was making. Critics of CRT said replacing it would reduce power demand when in fact people upsized all of their TV's so that little 20" that drew very little was replaced by a 55" that drew much more.

Nashou66 · Posted: Thu Mar 10, 2011 1:39 pm Post subject:

There was a thread about this over the pond on AV forums a couple years ago when the EU banned CRT TV production. Someone made you exact argument Jeremy. So you go from a 17 inch monitor to a 32 inch, where is the power reduction? Those Studies were done expecting consumers to buy the same size set.

Athanasios

**AnalogRocks** · Posted: Thu Mar 10, 2011 1:45 pm Post subject:

WanMan · Joined: 19 Mar 2006 Posts: 9668

The amusing thing about the forthcoming ban on 100W incandescent lamps will result in me replacing them with 5 20W CFL or ten 10W LEDs in each and every fixture. Razz

**AnalogRocks** · Posted: Fri Mar 11, 2011 4:38 am Post subject:

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 2090 Location: QLD, Australia

What i dont understand is why dont they just produce more power to sell to those that wish to consume it? Isnt that how you run a business? Supply what the people want?

Its a load of twaddle anyway, i had 2x Panasonic GAOO rear pros a few years ago, the 47 inch wide screen had the rating of 215 watts on the back, and the 51 inch 4:3 had 220 watts rating on it...

Now have a look on the back of a 42 inch plasma TV and its generally quite abit more than that figure quoted above. My grandma has a 42 inch 1920x1080 LCD TV, and it is rated at 250 watts!! My mum has a Panasonic 50 inch SD plasma, and it is rated more than 450 watts.

Where is the logic in any of it at all?? Smaller screen, and MORE power used.

And who the f*** do these people think they are to BAN such things? First of all, they wouldnt know their arse from their elbow about any of this sh** in the first place.... They hear someone say it, it sounds pretty good and will be easy to convince the doapy masses that also know 18 kinds of f*** all, and it instantly becomes gospel.

I on another forum a few months ago the New Zealand government was going to ban appliances such as TVs, VCRs, DVD and Bluray players etc from having a standby mode. For what reason? They think itll save power... For f*** sake... What a crock of sh**. This basically makes the remote only half as useful as it was.

So where to next?

Sorry i got abit carried away there... Wink

km987654 · Posted: Mon Jul 04, 2011 9:29 am Post subject:

WanMan · Joined: 19 Mar 2006 Posts: 9668

**Curt Palme** · Posted: Mon Jul 04, 2011 1:19 pm Post subject:

Marc (Tinman) told me that it's been calculated that if flat screens were properly ISF calibrated, power consumption would go down about 20% over they way they are set out of the box.

No idea where that number came from, but I do know that I was at Costco in the US on Saturday, and EVERY flat screen in there looked like complete crap. Even the g/f noticed. Way, way WAY over color saturated.

garyfritz · Joined: 08 Apr 2006 Posts: 7137 Location: Fort Collins, CO

How could that be? The calibration doesn't change the power going into the bulb, does it? (for non-plasma)

I thought it just changed the way the DLP or LCD reflected or filtered the light from the bulb. That's not going to change the power consumption.

**Curt Palme** · Posted: Mon Jul 04, 2011 4:16 pm Post subject:

I believe that was for plasmas only, sorry!

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 2090 Location: QLD, Australia

Yes Curt, this may be the case and it makes sense, but it will also potentially increase the panel life too, since plasma TVs wear their phosphor as fast as a CRT projector....