[shredder_87]

Like most people I'm in two minds with the Plasma/LCD debate.
One common complaint with LCD is that fast motion pictures (like a football game) are subject to motion blur. Does anyone own one of these 100HZ LCD sets, and can they vouch that this eliminates this problem.

I'm currently torn between a Pioneer Plasma or an the Sony Bravia X range. I mostly watch SD pictures from sky.

[camels]

Quote:

Originally Posted by shredder_87

One common complaint with LCD is that fast motion pictures (like a football game) are subject to motion blur. Does anyone own one of these 100HZ LCD sets, and can they vouch that this eliminates this problem.

Yes and, in my opinion, yes. I only have SD on a Panasonic Viera TX32LXD70.

[icsys]

I don't think you can ever get rid of the motion blur on an LCD screen. It is an inherent characteristic of the screen technology. You may be able to reduce it to an acceptable level dependent on the TV.

This effect occurs more often in LCD TV screens than Plasma, but has been known to affect both types. There is sometimes a similar effect shown in 100Hz conventional TV screens. The effect is that fast moving objects may appear to have a trail following them on the screen. The effect is most noticeable on bright objects and especially football players and footballs.

Trailing images are more prevalent on LCD screens than Plasma, although they may still be noticeable on Plasma screens. They are a result of the way that the unit processes moving images. As each separate part of each image is created by switching on and off each pixel, occasionally the position will have changed before the previous image has been fully switched off. This creates an after image.

As technology improves it may become less noticeable... I hope!

[spike69]

You might want to take a look here
http://www.hdtvtest.co.uk/Sony-KDL40...re-Quality.php

[icsys]

Quote:

Originally Posted by spike69

You might want to take a look here
http://www.hdtvtest.co.uk/Sony-KDL40...re-Quality.php

I don't think you can ever get rid of the motion blur on an LCD screen. It is an inherent characteristic of the screen technology. You may be able to reduce it to an acceptable level dependent on the TV.

Viewing a film in Hi Def on a Blu-Ray disk on a full 1080p TV will certainly reduce motion blur to an acceptable level. And rightly so on a TV that will set you back in excess of £1100

[Zeropoint1]

Quote:

Originally Posted by camels

Yes and, in my opinion, yes. I only have SD on a Panasonic Viera TX32LXD70.

I have the TX32LMD70 [50Hz] and it is a VERY good tv. However as much as I love it, I sometimes wish I had spent the extra and gone for the 100Hz version. I say this though for SD viewing.

Connected to a PS3 playing a Blu-Ray movie at 1080p** the picture is excellent and near faultless @50Hz (personally)

**this tv is only 1366 x 768 [720p or 1080i] but will accept a 1080p siginal and in auto set up mode the PS3 detects it as a 1080p screen

[icsys]

This motion blur comes down to response times.

Today's average LCD TV's response time is typically 8ms - compared to a CRT's 860 µs or less response time.

The human eye will perceive a series of sequential images displayed at a frequency of 30Hz (30 images, or frames, per second) as continuous, as is the case with movies (24 frames per second). Screen images displayed at 60Hz will offer even more comfortable viewing, but careful scrutiny will reveal a slight sense of "flickering", as is the case with the NTSC television standard (which displays at 60 frames per second). According to standards set by VESA (Video Electronics Standards Association), the frequency necessary to achieve flicker-free display on a CRT is 72Hz.

Since the screen isn't being refreshed on an LCD, there is no flicker of a screen returning to black then being refreshed. But, there can be a delay for a pixel that does need to change from one screen to the next. If that delay is too long, it won't be changed by the time the next pixel is changing, so you get a blurring effect while everything catches up.

The human eye has it's own response times. Everyones eyes are different. So when the blurring is reduced to an acceptable level, it is still happening, you just can't see it.

[sancheeez]

Quote:

Originally Posted by spike69

You might want to take a look here
http://www.hdtvtest.co.uk/Sony-KDL40...re-Quality.php

Are you posting that up like it's a bad review or something?

Yes, they mention that there is slight detectable motion blur but it's not even mentioned in the pros and cons part in the summary at the end of the review. If anything, the review seemed pretty favourable to me.

I use the lower specced 40" U3000 model (as thats what my budget allowed .... I'd have loved an X3000/X3500!) and even on that I can watch football on it no problem .... in HD it's stunning! (as it is when playing Fifa 08 on the 360 )

As icsys says "The human eye has it's own response times. Everyones eyes are different. So when the blurring is reduced to an acceptable level, it is still happening, you just can't see it. " ..... and it looks fine on my U3000.