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Newbie and burn in question

Last response: in Home Theatre
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April 14, 2004 4:32:36 AM

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

Hi All

Glad to find this site to ask questions about HDTV. I am a little parnoid
right now from the big warning in the instruction book about potential image
burn in on my new Sony 51" set. Almost every cable station we get has their
logo in the same spot during broadcast. So just how long is too long for
something like that to give you trouble? I keep the setting on "movie" since
our room does not get direct sunlight so the brightness is much lower than
"vivid". I cant enjoy watching these stations right now for worrying if I am
burning their logo into my screen! Please set me straight

Andy

More about : newbie burn question

Anonymous
April 14, 2004 4:32:37 AM

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

ANDREW wrote:
> Hi All
>
> Glad to find this site to ask questions about HDTV. I am a little
> parnoid right now from the big warning in the instruction book about
> potential image burn in on my new Sony 51" set. Almost every cable
> station we get has their logo in the same spot during broadcast. So
> just how long is too long for something like that to give you
> trouble? I keep the setting on "movie" since our room does not get
> direct sunlight so the brightness is much lower than "vivid". I cant
> enjoy watching these stations right now for worrying if I am burning
> their logo into my screen! Please set me straight
>
> Andy

You are burning the logos into the screen. But the effect can be
mitigated by calibrating the TV. You've already done the first step and
used the movie mode. Next, spend $25 and get the Digital Video
Essentials DVD and calibrate the DVD input. Carry over the settings to
the other inputs if you need to. You'll have a bigger burn-in potential
with watching 4:3 material (not stretched/zoomed) or a lot of
wide-aspect ratio movies (2.35:1), unless the TV uses gray bars (which
are distracting).

Burn-in will occur over time. It does on all CRT sets. It's just a
matter of how long before you see it. Calibrate it and you should be
fine for years. I have an older RPTV and see no burn-in after about 7
years of use.

--
David G.
Anonymous
April 14, 2004 1:27:59 PM

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

I just got a 50v500A LCD TV, and was told LCD won't burn in, but I don't
think I trust there word.

I watched the secend movie last night (Bad boys II) from Family Video, and
was real disapointed, as it was Wide screen, but would not fill the Top or
bottom unless I used Zoom which was bad news.

The Home Theater with tower speakers with 15 inch woofers and surround was
better then being at a movie, I was really satisfied. (15 inch, no Sub).

"ANDREW" <realestatebook@mindspring.com> wrote in message
news:EE%ec.63$04.47378@twister.southeast.rr.com...
> Hi All
>
> Glad to find this site to ask questions about HDTV. I am a little parnoid
> right now from the big warning in the instruction book about potential
image
> burn in on my new Sony 51" set. Almost every cable station we get has
their
> logo in the same spot during broadcast. So just how long is too long for
> something like that to give you trouble? I keep the setting on "movie"
since
> our room does not get direct sunlight so the brightness is much lower than
> "vivid". I cant enjoy watching these stations right now for worrying if I
am
> burning their logo into my screen! Please set me straight
>
> Andy
>
>
Related resources
Anonymous
April 14, 2004 6:28:50 PM

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

Hi Andrew,

Burn-in is caused by uneven phosphor wear in the guns. It effects all
CRT-based rear-projection sets as well as Plasma displays. In spite of
what others have said it most certinaly can be prevented and doing so
is as easy as following the manufactuers advice.

You must limit your viewing of static content ("static" being any
object on the screen that remains for an extended period of time, be
it black bars from DVDs, 4:3 verticle bars, network logos, video game
status bars, etc..) to no more than 15-20% of your total viewing (your
users guide should state the percentage for your model. If you watch a
lot of programming on a specific channel that has a non-translucent
logo you should track the number of hours you are watching that
channel and be cautious. Using the 20% rule, if you watch a 2-hour DVD
with horizontal black bars you need to watch 8-hours of full screen
content to counter the burn-in caused by the bars, apply the same rule
to logos, etc... This can become a bit of a juggling act, but if you
follow this advice your phosphor wear will be evened out and you won't
see burn-in. The problem is a lot of people don't do this. You can
leave the TV on sometimes even when you're not watching it, yes you
will reduce the overall life of the TV, but how long do you really
intend to keep the set (the sets are designed to last a good ten years
even running at 8 hours a day).

If your manufactuer has a good service department you can call them to
verify this.

-Jeremy






Properly calibrating your set is also an important element, you should
combine this with the 15-20% rule.



"ANDREW" <realestatebook@mindspring.com> wrote in message news:<EE%ec.63$04.47378@twister.southeast.rr.com>...
> Hi All
>
> Glad to find this site to ask questions about HDTV. I am a little parnoid
> right now from the big warning in the instruction book about potential image
> burn in on my new Sony 51" set. Almost every cable station we get has their
> logo in the same spot during broadcast. So just how long is too long for
> something like that to give you trouble? I keep the setting on "movie" since
> our room does not get direct sunlight so the brightness is much lower than
> "vivid". I cant enjoy watching these stations right now for worrying if I am
> burning their logo into my screen! Please set me straight
>
> Andy
April 14, 2004 6:54:56 PM

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

"Joe H" <JoeT@mailpuppy.com> wrote in message
news:EIydnUdt95921ODdRVn-gw@giganews.com...
> I just got a 50v500A LCD TV, and was told LCD won't burn in, but I don't
> think I trust there word.
>
> I watched the secend movie last night (Bad boys II) from Family Video, and
> was real disapointed, as it was Wide screen, but would not fill the Top or
> bottom unless I used Zoom which was bad news.
>
> The Home Theater with tower speakers with 15 inch woofers and surround was
> better then being at a movie, I was really satisfied. (15 inch, no Sub).
>
> "ANDREW" <realestatebook@mindspring.com> wrote in message
> news:EE%ec.63$04.47378@twister.southeast.rr.com...
> > Hi All
> >
> > Glad to find this site to ask questions about HDTV. I am a little
parnoid
> > right now from the big warning in the instruction book about potential
> image
> > burn in on my new Sony 51" set. Almost every cable station we get has
> their
> > logo in the same spot during broadcast. So just how long is too long for
> > something like that to give you trouble? I keep the setting on "movie"
> since
> > our room does not get direct sunlight so the brightness is much lower
than
> > "vivid". I cant enjoy watching these stations right now for worrying if
I
> am
> > burning their logo into my screen! Please set me straight
> >
> > Andy
> >
> >
>
>
>

None of the Widescreen movies I own fill the top and bottom of my TV. I
don't think any of them do. It's all to do with aspect ratios which are
different from film to film and not the same as a widescreen TV.

Duke
Anonymous
April 15, 2004 12:27:33 AM

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

"Joe H" <JoeT@mailpuppy.com> wrote in message
news:EIydnUdt95921ODdRVn-gw@giganews.com...
> I just got a 50v500A LCD TV, and was told LCD won't burn in, but I don't
> think I trust there word.

LCD TVs don't work the same as CRT or Plasma TVs. LCD's have a Light Panel
which is behind the color panels. This light panel shines thru the color
panels and is the same brightness throughout the whole screen. There is no
static "hot spot" to burn in. It is the color panels which determine how
dark or light the image will be depending how much light it allows to pass
thru. This is the same in LCD projectors. These projectors have a lamp
which shines thru the color panels. The display on a Laptop is a good
example of a LCD. Laptop don't burn in, they just fade away.
!