Red, green and blue to produce white?

[Alex2507]

Evidently I can choose cool, normal,warm or I can set the levels of red, green and blue to produce white. Right now I'm using normal because it just seems "normal". Before I go and start tweaking it I would like a little guidance.Thanks.

 

[MDS]

Cool, Warm, and Normal refer to the 'color temperature'. Ideally normal would produce a 6500K color temperature (the color of daylight). If you read a lot of reviews where TVs or monitors are measured, you'll find that very few get near the ideal of 6500K. Cool is more bluish and Warm is more reddish.

You wouldn't adust the red, green, and blue to produce white. Using 8 bits per color, pure white would mean r=255, b=255, g=255. Pure black would be r=0, b=0, g=0 and middle gray would be r=128, b=128, g=128. I don't think that is the intention here.

Adjusting those individual color values allows you to change the overall color temperature to your liking. So if you basically like the Warm setting but feel it is slightly too red, you'd bump down the red color control. Changing the red control will throw off the green, so you also have the ability to mess with the green. Those controls are really for someone with the right tools to do a proper calibration. Mess with them at your own peril.

 

[j_garcia]

My little guidance would be to pick up a calibration disc like Digital Video Essentials or Avia.

 

[Alex2507]

I had the manual in front of me when I posted the question just to get my terms right. No matter, I'll leave it alone. In today's market my TV could be had for $650. After I owned it for a year they actually replaced it with a new one, so reliability isn't one of it's strong siuts. My point is that there isn't a lot of money for the manual writer to do a good job.

The Avia disc is on my wish list. I understand that the other one is not as user friendly. Before I found AH I aquired a discwasher silver edition home theater setup disc that I have used but I suspect it might be a tad cheesy.

I do appreciate the advice.

 

[JKL1960]

Ideally normal would produce a 6500K color temperature (the color of daylight).

Wouldn't that be nice? Typically normal is colder than 6500K while warm or cinema settings get closer to 6500K. Some manuafcturers are better than others.

It actually takes a while to 'warm up' to the warmer setting but it will become natural after a while and colder settings will look wrong to you. Sadly, people who haven't experienced a properly calibrated set will usually prefer a colder setting. I think that if you dropped a properly calibrated set into the TV section of a big box store it would likely never sell and people would ask what's wrong with it.

 

[MDS]

I think that if you dropped a properly calibrated set into the TV section of a big box store it would likely never sell and people would ask what's wrong with it.

No doubt. Just like 'louder is better' for audio, brighter and overly saturated color is perceived to be better for video. This why most TVs on display are in 'torch mode'.

 

[Alex2507]

I can see I'm not done learnin' here. I think I like the warm setting better. I was under the assumption that running these hot was bad for them so I set it to normal thinking this one would last longer than a year. The warranty is gone now. The previous set had burn in where the black bars use to be on the left and right. Now I don't watch in 4:3. My girl doesn't careif the pic is stretched out and I don't care for TV so no problem.

Am I correct in my uninformed assumptions?

 

[MDS]

The danger is 'torch mode' - a term affectionately given for contrast and brightness settings near their max.

The Warm setting is more like a movie theater and is often the best choice. From there you can turn down the brightness and constrast even further but it's best to use a calibration disc like AVIA rather than trying to do it soley by eye.

 

[mtrycrafts]

Adjusting those individual color values allows you to change the overall color temperature to your liking. So if you basically like the Warm setting but feel it is slightly too red, you'd bump down the red color control. Changing the red control will throw off the green, so you also have the ability to mess with the green. Those controls are really for someone with the right tools to do a proper calibration. Mess with them at your own peril.

Black level, which is in reality brightness sets the K6500 temp. This too is on the test disc. Individual color intensity is needed to adjust the right amount of color intensity for proper color reproduction instead of blooming red, for instance in pictures, etc.
Some of those test dvds have 3 color filters just for this purpose and even he could adjust them.

 

[mtrycrafts]

Evidently I can choose cool, normal,warm or I can set the levels of red, green and blue to produce white. Right now I'm using normal because it just seems "normal". Before I go and start tweaking it I would like a little guidance.Thanks.

Get that test DVD and go over it a few times before attempting to calibrate.
It should have 3 color filters supplied. That is to adjust the color intensity individually so you don't have color blooming.
Even that $650 TV be better when calibrated. Just one thing though. When you calibrate to 6500K properly, it will be dimmer from out of the box or store intensity where they want to impress, not accurate reproduction.

You may want to read some at AVS website.

 

[Alex2507]

I did use a calibration disc. Like I said I suspect it might be the cheese model but it had me set the contrast and brightness to just below the halfway point. It's good to know I'm at least not wrecking the thing. The TV I did burn in damage to didn't have the benefit of a calibration disc so there is no telling what it was set to. The AVIA will make it's contribution to my viewing pleasure yet.

One last question here while I have your ear so to speak. What is a phase adjustment? It is a setting on the TV menu but is not even covered in the manual. It is set at 0 from the factory and goes up by increments of 1 as opposed to being either 0 or 180.

Well there is one more thing I wanted to know. Maybe this belongs as a post elsewhere and I'll do that if this is inappropriate but I'll ask anyway. Surround formats? I use strictly Dolby Digital for movies because of dynamic range compression. I'm a condo dweller. CD's get stereo and DVD-A gets 6 channel. Does this make sense? Thanks.

 

[Alex2507]

Black level, which is in reality brightness sets the K6500 temp. This too is on the test disc. Individual color intensity is needed to adjust the right amount of color intensity for proper color reproduction instead of blooming red, for instance in pictures, etc.
Some of those test dvds have 3 color filters just for this purpose and even he could adjust them.

That last line reads exactly like even a cave man could do it. I mean, look at it. Well you're right about me. You can see my join date and most of what I know I've learned since then. It's only been a couple of months. The beauty of it is that there have been results. Today I watched a movie and it sounded like there was a helicopter in my living room. And I could tell where it came from and where it went. Quite a treat.

 

[mtrycrafts]

That last line reads exactly like even a cave man could do it. .

Come to think of it, maybe it was one of them who taught me well.
Give it a try, slowly.