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New LCD causing nervous/irritation



 
 
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  #1  
Old February 3rd 07, 08:17 PM posted to alt.home-theater.misc
ZRexRider
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Posts: 2
Default New LCD causing nervous/irritation

A family member has mentioned that their new 26" LCD TV starts to make
her feel ill at ease while watching. No - I already asked - it wasn't
the show she was watching. Nobody else seems to be bothered by the TV
but her. It seems that she's sensitive to something in the video yet
she says it's normally stable and well focused. She mentioned that
two people noticed some odd "pixalation" in some "head movement" scene
but otherwise it looks normal.

Has anyone heard of anything like this? Is it possible that their
could be some minor screen shifting or frequency that someone could be
more sensitive to? They still have a 19" classic TV that doesn't
bother her at all - not that she wants to go back.

When she first told me about this she was watching regular tv with
this HDTV capable LCD.

Any ideas?

Thanks

  #2  
Old February 3rd 07, 10:19 PM posted to alt.home-theater.misc
[email protected]
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Posts: 1,004
Default New LCD causing nervous/irritation

"ZRexRider" wrote:
A family member has mentioned that their new 26" LCD TV starts to make
her feel ill at ease while watching. No - I already asked - it wasn't
the show she was watching. Nobody else seems to be bothered by the TV
but her. It seems that she's sensitive to something in the video yet
she says it's normally stable and well focused. She mentioned that
two people noticed some odd "pixalation" in some "head movement" scene
but otherwise it looks normal.

Has anyone heard of anything like this? Is it possible that their
could be some minor screen shifting or frequency that someone could be
more sensitive to? They still have a 19" classic TV that doesn't
bother her at all - not that she wants to go back.

When she first told me about this she was watching regular tv with
this HDTV capable LCD.

Any ideas?

Thanks


I have heard of people being sensitive to dlp displays,
but never to lcd. That's a new one on me.

Chip

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  #3  
Old February 3rd 07, 10:27 PM posted to alt.home-theater.misc
Dan
external usenet poster
 
Posts: 43
Default New LCD causing nervous/irritation

I agree, I've never heard of anything. If anything, I would think that the
image displayed by an lcd would be better for someone who is sensitive to
these types of things. A standard crt has quite a bit of flicker. That being
said, any idea what the response time on the lcd is? Maybe is a very slow
panel, and the ghosting is bothersome to the person?

"ZRexRider" wrote in message
oups.com...
A family member has mentioned that their new 26" LCD TV starts to make
her feel ill at ease while watching. No - I already asked - it wasn't
the show she was watching. Nobody else seems to be bothered by the TV
but her. It seems that she's sensitive to something in the video yet
she says it's normally stable and well focused. She mentioned that
two people noticed some odd "pixalation" in some "head movement" scene
but otherwise it looks normal.

Has anyone heard of anything like this? Is it possible that their
could be some minor screen shifting or frequency that someone could be
more sensitive to? They still have a 19" classic TV that doesn't
bother her at all - not that she wants to go back.

When she first told me about this she was watching regular tv with
this HDTV capable LCD.

Any ideas?

Thanks



  #4  
Old February 3rd 07, 10:31 PM posted to alt.home-theater.misc
Rich Clark
external usenet poster
 
Posts: 76
Default New LCD causing nervous/irritation


"ZRexRider" wrote in message
oups.com...
A family member has mentioned that their new 26" LCD TV starts to make
her feel ill at ease while watching. No - I already asked - it wasn't
the show she was watching. Nobody else seems to be bothered by the TV
but her. It seems that she's sensitive to something in the video yet
she says it's normally stable and well focused. She mentioned that
two people noticed some odd "pixalation" in some "head movement" scene
but otherwise it looks normal.

Has anyone heard of anything like this? Is it possible that their
could be some minor screen shifting or frequency that someone could be
more sensitive to? They still have a 19" classic TV that doesn't
bother her at all - not that she wants to go back.

When she first told me about this she was watching regular tv with
this HDTV capable LCD.


It's entirely possible that something about the way the TV upscales SD to
whatever its native resolution is causes artifacting that can result in some
sort of optical reaction. She may be sensitive to some interaction between
the scan frequency of the LCD panel, the frequency of the household current,
and the source of the SD program. It could be a defective TV. Or it could be
something else.

Some suggestions:

-Turn down the brightness. A lot. The factory presets on most TVs are way
too bright, which will accentuate whatever is causing the problem. This
should be done anyway to improve the picture quality.
-Ascertain whether the problem persists when the TV is displaying HD
content, or only when upscaling. If the latter, maybe there are settings
that can change the way the TV handles this function.
-Make sure it's not a defective sample, by whatever means is available
(exchange it, go watch the same model in a store, etc.).
-Plug the TV into a different circuit (not just a different outlet; make
sure it's a completely different circuit) to see if something electrical is
interacting with the TV. An extreme version of this test would be to take
the TV to a different building.
-Have her substantially change the distance from which she views the TV for
a while.

Good luck.

RichC




  #5  
Old February 4th 07, 06:01 PM posted to alt.home-theater.misc
ZRexRider
external usenet poster
 
Posts: 2
Default New LCD causing nervous/irritation

On Feb 3, 4:31 pm, "Rich Clark" wrote:
"ZRexRider" wrote in message

oups.com...

A family member has mentioned that their new 26" LCD TV starts to make
her feel ill at ease while watching. No - I already asked - it wasn't
the show she was watching. Nobody else seems to be bothered by the TV
but her. It seems that she's sensitive to something in the video yet
she says it's normally stable and well focused. She mentioned that
two people noticed some odd "pixalation" in some "head movement" scene
but otherwise it looks normal.


Has anyone heard of anything like this? Is it possible that their
could be some minor screen shifting or frequency that someone could be
more sensitive to? They still have a 19" classic TV that doesn't
bother her at all - not that she wants to go back.


When she first told me about this she was watching regular tv with
this HDTV capable LCD.


It's entirely possible that something about the way the TV upscales SD to
whatever its native resolution is causes artifacting that can result in some
sort of optical reaction. She may be sensitive to some interaction between
the scan frequency of the LCD panel, the frequency of the household current,
and the source of the SD program. It could be a defective TV. Or it could be
something else.

Some suggestions:

-Turn down the brightness. A lot. The factory presets on most TVs are way
too bright, which will accentuate whatever is causing the problem. This
should be done anyway to improve the picture quality.
-Ascertain whether the problem persists when the TV is displaying HD
content, or only when upscaling. If the latter, maybe there are settings
that can change the way the TV handles this function.
-Make sure it's not a defective sample, by whatever means is available
(exchange it, go watch the same model in a store, etc.).
-Plug the TV into a different circuit (not just a different outlet; make
sure it's a completely different circuit) to see if something electrical is
interacting with the TV. An extreme version of this test would be to take
the TV to a different building.
-Have her substantially change the distance from which she views the TV for
a while.

Good luck.

RichC


Thanks - she started investigating the factory settings and you are
correct, the brightness was off, the sharpness set at 50%. She was
able to manipulate it enough that all is fine. What a weird response
though.

It's funny - I can see a CRT set to a 60hertz 10 feet away and often
when I point it out the owner they can't see what I'm talking about.
I guess we all hear and see things differently.

Thanks again for advice


  #6  
Old February 4th 07, 09:51 PM posted to alt.home-theater.misc
Charles C. Shyu
external usenet poster
 
Posts: 8
Default New LCD causing nervous/irritation

One possibility is a type of seizure called a complex-partial seizure. If
she's really concerned she could see a Neurologist and perhaps get an EEG
hooked up while she watches the TV. This can help in making the diagnosis.
--
Charles C. Shyu
http://home.earthlink.net/~shyuc/shyu.html

"ZRexRider" wrote in message
oups.com...
A family member has mentioned that their new 26" LCD TV starts to make
her feel ill at ease while watching. No - I already asked - it wasn't
the show she was watching. Nobody else seems to be bothered by the TV
but her. It seems that she's sensitive to something in the video yet
she says it's normally stable and well focused. She mentioned that
two people noticed some odd "pixalation" in some "head movement" scene
but otherwise it looks normal.

Has anyone heard of anything like this? Is it possible that their
could be some minor screen shifting or frequency that someone could be
more sensitive to? They still have a 19" classic TV that doesn't
bother her at all - not that she wants to go back.

When she first told me about this she was watching regular tv with
this HDTV capable LCD.

Any ideas?

Thanks



  #7  
Old February 12th 07, 02:15 AM posted to alt.home-theater.misc
[email protected]
external usenet poster
 
Posts: 108
Default New LCD causing nervous/irritation

feeling ill while watching?
must be panasonic, or are you
tuned to ophra?

  #8  
Old March 11th 07, 01:11 PM posted to alt.home-theater.misc
D A V I D L A N E
external usenet poster
 
Posts: 11
Default New LCD causing nervous/irritation

I've noticed when my son occasionally messes with the remote, the aspect
ratio pf Standard Definition is sometimes stretched to fill the widescreen.
It drives me nuts. If it's stretched logarythmically, things just appear
"fatter". But in one of the panorama modes, the middle of the screen
remains at the correct height to width ratio, but stretches the image extra
wide as it progresses towards the edges of the screen. It doesn't make me
nervous, but I find it quite irritating. Especially in scenes wherein the
camera pans from side to side. An easy way to check this is to switch to
CNN, FoxNews or MSNBC. The ticker-tape news headlines that scroll across the
bottom of the screen should remain the same size as it scrolls across. If
the text scrolls across and changes size, chances are you may only need to
adjust the aspect ratio.

Good luck.
David.

"ZRexRider" wrote in message
oups.com...
A family member has mentioned that their new 26" LCD TV starts to make
her feel ill at ease while watching. No - I already asked - it wasn't
the show she was watching. Nobody else seems to be bothered by the TV
but her. It seems that she's sensitive to something in the video yet
she says it's normally stable and well focused. She mentioned that
two people noticed some odd "pixalation" in some "head movement" scene
but otherwise it looks normal.

Has anyone heard of anything like this? Is it possible that their
could be some minor screen shifting or frequency that someone could be
more sensitive to? They still have a 19" classic TV that doesn't
bother her at all - not that she wants to go back.

When she first told me about this she was watching regular tv with
this HDTV capable LCD.

Any ideas?

Thanks



 




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