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-   -   If bars on your TV cause burn in then how do you avoid it when using a widescreen? (http://www.homecinemabanter.com/showthread.php?t=6080)

[email protected] March 25th 04 03:52 PM

If bars on your TV cause burn in then how do you avoid it when using a widescreen?
 
Wouldnt there be sidebars on almost everything you watch ? Most of the
cable stations arent HD format yet.

With a 4:3 you can avoid it by using the s-video feed which would
display full screen but with a widescreen youd always get side bars
unless you could use 16:9 compressed mode or something with your HD
feed then things would look bit squashed.


David G. March 25th 04 07:25 PM

wrote:
Wouldnt there be sidebars on almost everything you watch ? Most of the
cable stations arent HD format yet.

With a 4:3 you can avoid it by using the s-video feed which would
display full screen but with a widescreen youd always get side bars
unless you could use 16:9 compressed mode or something with your HD
feed then things would look bit squashed.


It's a problem with all CRT displays regardless of whether they are
widescreen or not. Every time a CRT displays a signal that does not
consume the entire display area, you are subjecting the set to burn-in.
That includes 4:3 TVs when watching any broadcast show in letterbox, and
DVD that is widescreen (anamorphic or not), and affects widescreen sets
when watching any 4:3 material or any DVD that is a higher aspect ratio
than 1.77:1 (although a 1.85:1 DVD may fill most CRT displays because of
overscan).

If you have a CRT display and watch any material that does not fill your
screen, you are at risk. So use your stretch/zoom modes liberally to
avoid this and calibrate your set using Avia or DVE.

--
David G.


Whodunnit? March 25th 04 07:35 PM

easy

There are several different formats to use. Stretch the screen--it doesnt
look bad at all.

" wrote in message
...
Wouldnt there be sidebars on almost everything you watch ? Most of the
cable stations arent HD format yet.

With a 4:3 you can avoid it by using the s-video feed which would
display full screen but with a widescreen youd always get side bars
unless you could use 16:9 compressed mode or something with your HD
feed then things would look bit squashed.




Charles Tomaras March 25th 04 07:56 PM


"David G." wrote in message
...


If you have a CRT display and watch any material that does not fill your
screen, you are at risk. So use your stretch/zoom modes liberally to
avoid this and calibrate your set using Avia or DVE.

--
David G.



The problem with using the stretch and zoom modes liberally as you suggest
is that stretching is a very visible aberration that is 100% apparent from
the first time you distort the aspect ratio of your television. Burn in on a
properly adjusted set is practically non-existent or very gradual over a
long period of time. Why anyone thinks that stretching is preferable is
beyond me. I'd even go so far as to say I'd prefer watching a picture with
some uneven phosphor wear than a picture that has been stretched out
abnormally to fill the screen.



Sumner Paine March 25th 04 08:38 PM

It's like switching to Diet soda... it's weird at first, but then you get
used to the stretch and zoom modes.

"Whodunnit?" wrote in message
...
easy

There are several different formats to use. Stretch the screen--it doesnt
look bad at all.

" wrote in message
...
Wouldnt there be sidebars on almost everything you watch ? Most of the
cable stations arent HD format yet.

With a 4:3 you can avoid it by using the s-video feed which would
display full screen but with a widescreen youd always get side bars
unless you could use 16:9 compressed mode or something with your HD
feed then things would look bit squashed.






David G. March 25th 04 10:13 PM

Charles Tomaras wrote:
"David G." wrote in
message ...


If you have a CRT display and watch any material that does not fill
your screen, you are at risk. So use your stretch/zoom modes
liberally to avoid this and calibrate your set using Avia or DVE.

--
David G.



The problem with using the stretch and zoom modes liberally as you
suggest is that stretching is a very visible aberration that is 100%
apparent from the first time you distort the aspect ratio of your
television. Burn in on a properly adjusted set is practically
non-existent or very gradual over a long period of time. Why anyone
thinks that stretching is preferable is beyond me. I'd even go so far
as to say I'd prefer watching a picture with some uneven phosphor
wear than a picture that has been stretched out abnormally to fill
the screen.


In theory, I'd agree, and I wouldn't get a CRT set today for that very
reason. However, coming off the heals of another post where the OP
discovered noticeable burn-in after only a few months of viewing, other
members considering or using CRT sets are worried about the problem.
Whether the OP will eventually prefer a stretched image or a TV without
burn-in is another issue. Many sets can do what's called an uneven
stretch, leaving the center of the screen somewhat untouched and
stretching more at the sides. This is similar to what Pioneer used to
use on their slightly odd aspect ratio pseudo-widescreen sets (which I
have). I don't really notice the stretching in any great way. The set's
not as wide as 16:9 set, but many users feel that the prevention of
burn-in, combined with the larger picture you get when zoom/stretch is
enabled is preferable, especially if they don't watch too much 4:3
material.

My post was also intended to point out that many owners of HD sets still
don't use them for HD material. Instead, they watch a lot of DVD
material in 480p. If that's the case, burn-in is still an issue with
wide aspect ratio movies (say 2.35:1) which many are. In that case, you
risk burn-in on the top and bottom of the screen where the black bars
appear and once again are faced with the issue of resorting to a zoom
mode and thereby killing some of the picture in order to avoid burn-in.

It's a problem with the technology and difficult to completely avoid.


--
David G.


MrMike March 26th 04 12:52 AM

I bought into a different technology precisely so I would not have to "get
used to the stetch and zoom modes".

YMMV

"Sumner Paine" wrote in message
...
It's like switching to Diet soda... it's weird at first, but then you get
used to the stretch and zoom modes.

"Whodunnit?" wrote in message
...
easy

There are several different formats to use. Stretch the screen--it

doesnt
look bad at all.




Ed T March 26th 04 02:28 AM

With the Mits 413 models there is only one stretch mode available in 1080I
(it looks bad too) and no zoom which means that 2.35:1 can't be dealt with
at all.

"Whodunnit?" wrote in message
...
easy

There are several different formats to use. Stretch the screen--it doesnt
look bad at all.

" wrote in message
...
Wouldnt there be sidebars on almost everything you watch ? Most of the
cable stations arent HD format yet.

With a 4:3 you can avoid it by using the s-video feed which would
display full screen but with a widescreen youd always get side bars
unless you could use 16:9 compressed mode or something with your HD
feed then things would look bit squashed.






Sumner Paine March 26th 04 07:23 PM

I bought into this technology precisely so all my TV and video would be
presentened in a nice and big 16:9 rectangle.

"MrMike" wrote in message
...
I bought into a different technology precisely so I would not have to "get
used to the stetch and zoom modes".

YMMV

"Sumner Paine" wrote in message
...
It's like switching to Diet soda... it's weird at first, but then you

get
used to the stretch and zoom modes.

"Whodunnit?" wrote in message
...
easy

There are several different formats to use. Stretch the screen--it

doesnt
look bad at all.






Ollie T March 27th 04 11:20 AM

The Toshiba I have lets me select from about 5 different ways to view a 4:3
source. I don't like the normal 16:9 flat out stretch. There is a view
that fills the screen that works great though. It zooms a bit of the center
and then slightly stretches the left and right. Unless you are really
looking for distortion on the sides, you will never notice it. Looks great.

HDTV games lists and discussions
http://www.hdtvarcade.com

" wrote in message
...
Wouldnt there be sidebars on almost everything you watch ? Most of the
cable stations arent HD format yet.

With a 4:3 you can avoid it by using the s-video feed which would
display full screen but with a widescreen youd always get side bars
unless you could use 16:9 compressed mode or something with your HD
feed then things would look bit squashed.





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