Warm vs. Cool Picture

[Guest]

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On my Samsung HDTV, I have 5 different settings for color warmth-cool.
Does anyone know the purpose of these, and are any settings harmfull
to the life of the CRT tube?

 

[Guest]

Archived from groups: alt.tv.tech.hdtv (More info?)

CGott wrote:
>
> On my Samsung HDTV, I have 5 different settings for color warmth-cool.
> Does anyone know the purpose of these, and are any settings harmfull
> to the life of the CRT tube?


I believe warmest emphasizes Red Picture tint

I believe coolest emphasizes the Blue Picture tint...

THese adjustments change the Picture Color/tint & Color Temp...


Only excess contrast & especially Brightness 'uses

up the CRT Tube.... along with 'same picture' Burn in...

 

[Guest]

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curtgottler@yahoo.com (CGott) wrote in message news:<70fae150.0412021431.3a997c6b@posting.google.com>...

> On my Samsung HDTV, I have 5 different settings for color warmth-cool.
> Does anyone know the purpose of these, and are any settings harmfull
> to the life of the CRT tube?

I set mine to the middle, neutral setting, which should be closest to
the colors at the broadcast end. (Or is it?)

I think the idea is basically that if your TV is in a room lit by
"warm" light (e.g. incandescent bulbs) then the "warm" setting matches
the TV to the color that your eyes are otherwise adapted for. I
personally think there's no point in that; my eyes adapt to the TV's
colors and it's the room that looks like its white color is off,
because the TV is brighter than the room.

 

[Richard]

Archived from groups: alt.tv.tech.hdtv (More info?)

"Dennis Mayer" <Polaris1@execpc.com> wrote in message
news:41AF9B73.3D2136F@execpc.com...
>
>
> CGott wrote:
>>
>> On my Samsung HDTV, I have 5 different settings for color warmth-cool.
>> Does anyone know the purpose of these, and are any settings harmfull
>> to the life of the CRT tube?
>
>
> I believe warmest emphasizes Red Picture tint
>
> I believe coolest emphasizes the Blue Picture tint...
>
> THese adjustments change the Picture Color/tint & Color Temp...
>
>
> Only excess contrast & especially Brightness 'uses
>
> up the CRT Tube.... along with 'same picture' Burn in...

The NTSC established a color temperature standard. Typically the warm
setting is closest to that NTSC standard. Typically special calibration
usually is need to take it even wormer to get to the standard color
temperature.

Richard.

 

[Guest]

Archived from groups: alt.tv.tech.hdtv (More info?)

"CGott" <curtgottler@yahoo.com> wrote in message
news:70fae150.0412021431.3a997c6b@posting.google.com...
> On my Samsung HDTV, I have 5 different settings for color warmth-cool.
> Does anyone know the purpose of these, and are any settings harmfull
> to the life of the CRT tube?

These settings typically adjust the color temperature. While it affects the
color it is different than adjusting the tint. It affects the balance of
output of the R,G, & B, while the tint control shifts the phase of the color
component of the pix. Color temperature affects a black and white as well
as a color image, while tint controls only affect color.

The settings from the factory are likely much higher in color temperature
than the standard for HDTV. While this standard exists, and you can have
your set calibrated (for several hundred $) to get closer to the standard, I
would rely more on your visual preference. Look at a black and white image,
preferably a gray scale pattern from a test disc. Choose the setting that
looks most like gray and appears to have the least color bias. Then, with
your tint set as close to neutral as possible, view a variety of color
images. Select the color temp setting that is most comfortable to you. You
may want to vary it on different programming. If you always end up at the
lowest color temp setting (less blue), then you might want to have the set
calibrated by someone with the proper equipment.

If you are like most people, you will find that you actually prefer the
higher color temperature settings (what we used to call Trinitron color)
which yield a more pink flesh tone, as opposed to lower temps which give a
more olive flesh tone. Preferences vary, but manufacturers have known for
years that higher color temperatures sell better. The bottom line is that
you should set it the way you like it. The difference in risk of burn-in
due to changing these settings is minimal, but you should set your contrast
to a reasonable level to avoid this in general. If you can't get it the way
you like it, then have it done by a pro.

Leonard

 

[Guest]

Archived from groups: alt.tv.tech.hdtv (More info?)

"Dennis Mayer" <Polaris1@execpc.com> wrote in message
news:41AF9B73.3D2136F@execpc.com...
>
>
> CGott wrote:
> >
> > On my Samsung HDTV, I have 5 different settings for color warmth-cool.
> > Does anyone know the purpose of these, and are any settings harmfull
> > to the life of the CRT tube?
>
>
> I believe warmest emphasizes Red Picture tint
>
> I believe coolest emphasizes the Blue Picture tint...

This can be confusing. You are correct that warmer color is often used to
refer to a more red pix, but when refering to color temperature, higher
settings are more blue (think of the spectrum of color where red is low and
blue is high in frequency). Manufacturers vary in the description of color
temperature. For instance, Hitachi uses warm(red)/cool(blue) while
Mitsubishi uses low/mid/high nomenclature with high being more blue. I
rarely work on them so I don't recall on the Samsungs.

> THese adjustments change the Picture Color/tint & Color Temp...

While the color temperature adjustments affect a color image, they do
something very different than the tint control. It is important to
understand the distinction, as adjusting both incorrectly can result in very
unpleasant combinations as tints and color intensity vary among sources.

> Only excess contrast & especially Brightness 'uses
>
> up the CRT Tube.... along with 'same picture' Burn in...

This is true, though the gun with the most relative emphasis will be
relatively more likely to burn and will age a bit faster. Higher color
temperatures with high contrast make the blue more likely to burn than lower
settings. Either way, green is most often the first to show burn-in.

Leonard

 

[Guest]

Archived from groups: alt.tv.tech.hdtv (More info?)

"Paul Kienitz" <paul-NOZPAM@paulkienitz.net> wrote in message
news:e5747637.0412030148.7cd5aec7@posting.google.com...
> curtgottler@yahoo.com (CGott) wrote in message
news:<70fae150.0412021431.3a997c6b@posting.google.com>...
>
> > On my Samsung HDTV, I have 5 different settings for color warmth-cool.
> > Does anyone know the purpose of these, and are any settings harmfull
> > to the life of the CRT tube?
>
> I set mine to the middle, neutral setting, which should be closest to
> the colors at the broadcast end. (Or is it?)
>
> I think the idea is basically that if your TV is in a room lit by
> "warm" light (e.g. incandescent bulbs) then the "warm" setting matches
> the TV to the color that your eyes are otherwise adapted for. I
> personally think there's no point in that; my eyes adapt to the TV's
> colors and it's the room that looks like its white color is off,
> because the TV is brighter than the room.

While room lighting affects the perception of color, there is much more to
it than this. Many things affect the perception of color, including
personal tendencies, lighting, and the color of surroundings. The settings
should be set to whatever looks right to the individual. I have set white
balance on sets in service that were far off due to aging CRTs and had
customers complain that the color did not look right any more. After a few
days of viewing they thought it looked fine. The fact is that human visual
perception (notice I did not say vision) is very robust and within a rather
wide range tends to self correct when there is no reference for a change.
Try the settings and leave them for a while then switch to another for a
while and decide which is better to YOU after watching for a long period of
time.

Leonard

 

[Guest]

Archived from groups: alt.tv.tech.hdtv (More info?)

"CGott" <curtgottler@yahoo.com> wrote in message
news:70fae150.0412021431.3a997c6b@posting.google.com...
> On my Samsung HDTV, I have 5 different settings for color warmth-cool.
> Does anyone know the purpose of these, and are any settings harmfull
> to the life of the CRT tube?

Change them and you will see. Probably no affect on tube life that
monkeying with the contrast/brightness wouldn't affect even more.

 

[Guest]

Archived from groups: alt.tv.tech.hdtv (More info?)

Have you tried the settings? They're reddish and bluish to suit your own
preferences and should not affect the life of your tube. I too have a
Samsung HDTV and stick with the standard color.

Bill

"CGott" <curtgottler@yahoo.com> wrote in message
news:70fae150.0412021431.3a997c6b@posting.google.com...
On my Samsung HDTV, I have 5 different settings for color warmth-cool.
Does anyone know the purpose of these, and are any settings harmfull
to the life of the CRT tube?