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Is this overkill? (A "burn-in" warning and "uneven-aging" warningfor a Samsung 27" LED-backlit TV)

J

jaynews

Do I really have to worry about burn-in or uneven aging if watching too much 4:3 material, or too much CNBC, etc. on an LED-backlit LCD TV?

I haven't been getting "burn in" or anything else on my plain-old LCD monitors....is LED backlit really more subject to burn-in and uneven-aging than plain old LCD with flourescent bulbs as the backlight?

From the user manual:

_____________________________________________________________
Wide screen format TVs (with 16:9 aspect ratios, the ratio of the screen width to height) are primarily designed to view wide screen format full-motion
video. The images displayed on them should primarily be in the wide screen 16:9 ratio format, or expanded to fill the screen if your model offers this
feature, with the images constantly in motion. Displaying stationary graphics and images on the screen, such as the dark sidebars on non-expanded
standard format television video and programming, should be limited to no more than 5% of the total television viewing per week.
Additionally, viewing other stationary images and text such as stock marketcrawls, video game displays, station logos, web sites or computer graphics
and patterns, should be limited as described above for all televisions. Displaying stationary images for more than 5% of total viewing time can cause
uneven aging of your TV and leave subtle, but permanent burned-in ghost images in the LED picture. To avoid this, vary the programming and images,
and primarily display full screen moving images, not stationary patterns ordark bars. On LED models that offer picture sizing features, use these controls
to view different formats as a full screen picture. Be careful in the selection of television formats you use for viewing and the amount of time you view them.
Uneven LED aging as a result of format selection and use, as well as burnedin images, are not covered by your Samsung limited warranty.

Still image warning

Avoid displaying still images (such as jpeg picture files), still image elements (such as TV channel logos, stock or news bars at the screen bottom etc.),
or programs in panorama or 4:3 image format on the screen. Constantly displaying still pictures can cause image burn-in on the screen, which will affect
image quality. To reduce risk of this effect, please follow the recommendations below:
• Avoid displaying the same TV channel for long periods.
• Always try to display a full screen image.
• Reduce brightness and contrast to avoid the appearance of after-images.
• Use all TV features designed to reduce image retention and screen burn.Refer to proper user manual section for details.
____________________________________________________
 
P

Phil Allison

"jaynews"

Do I really have to worry about burn-in or uneven aging if watching too much
4:3 material, or too much CNBC, etc. on an LED-backlit LCD TV?

I haven't been getting "burn in" or anything else on my plain-old LCD
monitors....is LED backlit really more subject to burn-in and uneven-aging
than plain old LCD with flourescent bulbs as the backlight?

From the user manual:


** Same warning goes with nearly every LCD, Plasma or CRT TV.

AFAIK - the LEDs have nothing to do with it.

All it really means is that if you DO get some burn in - the maker does
not cover it under warranty.



.... Phil
 
L

Leif Neland

Den 02-09-2013, skrev jaynews:
Do I really have to worry about burn-in or uneven aging if watching too much
4:3 material, or too much CNBC, etc. on an LED-backlit LCD TV?

I haven't been getting "burn in" or anything else on my plain-old LCD
monitors....is LED backlit really more subject to burn-in and uneven-aging
than plain old LCD with flourescent bulbs as the backlight?

Nothing to do with the backlight.

You could probably tear off the backlight, put the LCD in front of a
window and get the same amount of burn-in. :)
 
W

William Sommerwerck

I know of no burn-in mechanism associated with any type of LCD display (though
individual pixels can get "stuck", and require "exercising" to free up).

Plasma displays are another matter. I would burn in the set with at least 80
hours of full-screen display, or a "noise" image, before even considering
watching Panavision, or even 1:1.85 films. The claims that burn-in damage
cannot occur are bald-faced lies.
 
M

Mike Tomlinson

William Sommerwerck said:
I know of no burn-in mechanism associated with any type of LCD display

You've misunderstood the question. The OP is talking about screen burn,
not burning-in a device (part of post-manufacture testing).
 
W

William Sommerwerck

"Mike Tomlinson" wrote in message
You've misunderstood the question. The OP is talking about screen burn,
not burning-in a device (part of post-manufacture testing).

I knew exactly what he was talking about. "Burn-in" might not be the best term
("break-in" might be better), but it is a fact that, during the first 100
hours or so of plasma operation, it is possible to "age" the screen unevenly.
I know, because I did it to my display.
 
W

William Sommerwerck

Just to clarify the point... "screen burn" refers to leaving a bright,
unmoving area on the screen for an excessive length of time. This can cause a
temporary ghost image -- or a permanent burn if it lasts too long.
 
W

William Sommerwerck

"Phil Allison" wrote in message "William Sommerwerck"
I know of no burn-in mechanism associated with any type of LCD display.

** Bragging about your ignorance again?

Showing your inability to read again?


http://en.wikipedia.org/wiki/Screen_burn-in#Plasma.2C_LCD_and_OLED_displays

You're misreading the article. I have never heard of "stuck" LCD pixels
described as a form of "burn in".

Phil strikes me as the sort of person who would never admit to being ignorant
about anything. It's hard to imagine him ever saying "I don't understand
thus-and-such. Would someone please explain it?"
 
M

Mike Tomlinson

William Sommerwerck said:
Just to clarify the point... "screen burn" refers to leaving a bright,
unmoving area on the screen for an excessive length of time. This can cause a
temporary ghost image -- or a permanent burn if it lasts too long.

That's what I was referring to.

I think we've used confusing terminology here - 'screen burn' vs. 'burn-
in' vs. 'premature ageing and screen burn on plasma screens'.

"but it is a fact that, during the first 100 hours or so of plasma
operation, it is possible to "age" the screen unevenly"

I wasn't aware of that, thanks for the heads-up.

http://plasmatvbuyingguide.com/plasmatv/plasmatv-burnin.html
 
W

William Sommerwerck

"Phil Allison" wrote in message
** Phil would dearly love to kick your fat, pig ignorant ass right into
orbit.

Why don't you stop by and give it a try? Oh, you live in Great Britain, so you
can't? How convenient.
 
M

Mike Tomlinson

William Sommerwerck said:
Why don't you stop by and give it a try? Oh, you live in Great Britain, so you
can't? How convenient.

Allison is Australian, which explains a lot.

If you're aware of the unpleasant troll called "Rod Speed" that infests
various groups, he's Australian too.

Mind you, you have to take into account that these are the descendants
of the criminals that the Brits shipped off to van Diemen's land many
years ago during transportation.
 
W

William Sommerwerck

"Mike Tomlinson" wrote in message
Allison is Australian, which explains a lot.
If you're aware of the unpleasant troll called "Rod Speed" that infests
various groups, he's Australian too.
Mind you, you have to take into account that these are the descendants
of the criminals that the Brits shipped off to van Diemen's land many
years ago during transportation.

Thanks for the correction.

I visited Australia in 1976. Loved the country, loved the people. I did not
sense any sort of "criminal culture" in Australian society.
 
B

Bob F

William said:
Just to clarify the point... "screen burn" refers to leaving a bright,
unmoving area on the screen for an excessive length of time. This can
cause a temporary ghost image -- or a permanent burn if it lasts too
long.

This was a problem with CRTs. I can see no reason why LCDs would have any such
problem
 
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