lcds and blurring

I have the philips lcd 20" tv / monitor, and haven't noticed any
blurring. Of course that isn't one of my prime concerns.

It does better when the different feature values aren't over-extended.

It appears your set has an eight-millisecond response time as shown in
the thread below.

http://www.google.com/search?hl=en&i...+response+time

m h o
*v ƒe

Hi, got a few questions about my lcd tv and lcd's in general.
My tv, which I have owned for abour 2 weeks now is a
Sony Bravia KLVS26A10 26".
I use it with a Xbox 360 and my question is about motion blur.
I really only see the blur in 1st person shooters and then only
when I turn my character left to right or right to left. There is
very slight blur when strafing side to side but its more noticeable
when turning. The severity varies from game to game, for example
its worse in Call of Duty 2 than in Perfect Dark Zero. I get no
noticeable blurring in non fps games. I notice a bit in tv shows and
movies but not enough to really bother me.
The thing is I went through a couple of other sets from Best Buy
before settling on this one and dont want to exchange this one but the
blurring is bugging me a bit. However I know if I return it for another
lcd I risk dead/stuck pixels or a lcd with worse blurring.
The other tv's I tried were Samsung LNR268W returned 2 sets because of
MANY stuck pixels, Toshiba 27HLV95 bad ghosting and blurring, Sharp
Aquos LC26DA5U bad blurring, incurable red push and no pc input - I plan
on hooking up my desktop to my tv for some FarCry and HalfLife2 sometime.
Ok maybe I wont be able to get away from blurring completely as long I
use a lcd tv. But I find that hard to believe as I have a Samsung
Syncmaster 712n lcd 17" monitor that I previously hooked my 360 to with
vga cables and it had almost no blurring at all.
So my question is if I stick with lcd am I stuck with blurring no
matter what tv I choose or is it just a case of finding a different tv
than the ones I have already tried ?
btw the Toshiba and Sony tvs do not have the response time listed on
bestbuy's site. The Samsungs was 12ms I believe.

"Stygian" wrote in message
...
Hi, got a few questions about my lcd tv and lcd's in general.
My tv, which I have owned for abour 2 weeks now is a
Sony Bravia KLVS26A10 26".
I use it with a Xbox 360 and my question is about motion blur.
I really only see the blur in 1st person shooters and then only
when I turn my character left to right or right to left. There is
very slight blur when strafing side to side but its more noticeable
when turning. The severity varies from game to game, for example
its worse in Call of Duty 2 than in Perfect Dark Zero. I get no noticeable
blurring in non fps games. I notice a bit in tv shows and movies but not
enough to really bother me.
The thing is I went through a couple of other sets from Best Buy before
settling on this one and dont want to exchange this one but the blurring
is bugging me a bit. However I know if I return it for another lcd I risk
dead/stuck pixels or a lcd with worse blurring.
The other tv's I tried were Samsung LNR268W returned 2 sets because of
MANY stuck pixels, Toshiba 27HLV95 bad ghosting and blurring, Sharp Aquos
LC26DA5U bad blurring, incurable red push and no pc input - I plan on
hooking up my desktop to my tv for some FarCry and HalfLife2 sometime.
Ok maybe I wont be able to get away from blurring completely as long I
use a lcd tv. But I find that hard to believe as I have a Samsung
Syncmaster 712n lcd 17" monitor that I previously hooked my 360 to with
vga cables and it had almost no blurring at all.
So my question is if I stick with lcd am I stuck with blurring no matter
what tv I choose or is it just a case of finding a different tv
than the ones I have already tried ?
btw the Toshiba and Sony tvs do not have the response time listed on
bestbuy's site. The Samsungs was 12ms I believe.

It's pretty much endemic to LCDs. The fastest they can really go is about
20ms (which is probably adequate for something in the 25-30fps range, but
may start to blur things that are much faster). Many displays can, however,
use an overdrive function to drive the color past its intended value, then
gradually (over the next couple of frames) move it toward where it's
supposed to be. This can reduce the response time significantly, but the
tradeoff is momentarily less accurate color in changing or moving parts of
the image, which can be perceived as video noise.

In article Stygian writes:
Hi, got a few questions about my lcd tv and lcd's in general.
My tv, which I have owned for abour 2 weeks now is a
Sony Bravia KLVS26A10 26".
I use it with a Xbox 360 and my question is about motion blur.
I really only see the blur in 1st person shooters and then only
when I turn my character left to right or right to left. There is
very slight blur when strafing side to side but its more noticeable
when turning. The severity varies from game to game, for example
its worse in Call of Duty 2 than in Perfect Dark Zero. I get no
noticeable blurring in non fps games. I notice a bit in tv shows and
movies but not enough to really bother me.
The thing is I went through a couple of other sets from Best Buy
before settling on this one and dont want to exchange this one but the
blurring is bugging me a bit.

So my question is if I stick with lcd am I stuck with blurring no
matter what tv I choose or is it just a case of finding a different tv
than the ones I have already tried ?

All currently manufactured LCDs blur, given the right conditions.

To understand why, presume that the update time is 0 - instant. Then
presume you are watching a 60 frame/second progressive signal.

The result is that you have the image on the screen for 1/60 second, then
it instantly changes to the next one.

Now, watch some program where the action is moving across the screen. Your
eyes follow it. However, the image is not really moving, but is stationary
for 1/60 second. As your eyes move across the screen (towards where it will
be in the next frame), that stationary image is smeared across a portion of
your retina. When it updates, you are there, and for the next 60th, it gets
smeared again.

You see blur. It wasn't really on the screen, but was formed by your eyes
tracking the image's apparent motion.

A CRT would simply show the image flashed at each 60th of the second and
be dark the rest of the time, so you don't see the image smeared in your eyes.

A sequential color DLP shows rainbows for the same reason. Some people don't
notice them, some do.


Given the other advantages of the better LCD sets (such as you apparently have),
it seems a small price to pay if it doesn't bother you a lot.


Alan

"Alan" wrote in message
...

All currently manufactured LCDs blur, given the right conditions.

To understand why, presume that the update time is 0 - instant. Then
presume you are watching a 60 frame/second progressive signal.

The result is that you have the image on the screen for 1/60 second, then
it instantly changes to the next one.

Now, watch some program where the action is moving across the screen.
Your
eyes follow it. However, the image is not really moving, but is
stationary
for 1/60 second. As your eyes move across the screen (towards where it
will
be in the next frame), that stationary image is smeared across a portion
of
your retina. When it updates, you are there, and for the next 60th, it
gets
smeared again.

You see blur. It wasn't really on the screen, but was formed by your
eyes
tracking the image's apparent motion.

This isn't the reason LCDs blur. They actually DO blur, because they really
can't change in time, so end up with a fusion of more than one frame being
displayed at any given moment. Eye tracking is caused by slow framerate
rather than slow refresh rate, and is a separate problem. But since LCDs
generally can keep up with slow framertates but struggle to display faster
framerates properly, the two problems are unlikely to be much of an issue at
the same time.