Discussion
Is there a simple and straightforward way of deciphering different TV manufacturers motion rates, PQI, PMI, blah blah blah...?
After a recent experience with a TV which I thought was better than it actually was, I need to make sure that my next set has a decent chance of eliminating motion blur, judder etc..
It seems that they are all trying to find different ways to pull the wool over customers' eyes by making up their own systems for measuring motion rate, and all I want to do is compare like for like figures.
I'm looking for a 55" 4k set up to about £850. It also needs to be something I can buy through Currys as I have a credit note from my previous TV.
After a recent experience with a TV which I thought was better than it actually was, I need to make sure that my next set has a decent chance of eliminating motion blur, judder etc..
It seems that they are all trying to find different ways to pull the wool over customers' eyes by making up their own systems for measuring motion rate, and all I want to do is compare like for like figures.
I'm looking for a 55" 4k set up to about £850. It also needs to be something I can buy through Currys as I have a credit note from my previous TV.
It's almost impossible to directly compare re-fresh rates across brands as everyone seems to quote a different measure now (HZ/PQI/PMI), so best bet is to go to the store and have a look at them... blur/judder would surely be noticeable?
Personally, I have a couple of Samsungs - a UE48H6400 (2013MY, 1080p, c.£450) and a UE48JS9000 (2014MY, 4k, c.£1,300).
Being completely honest, neither are quite as good with something like football (and some other sports) as my old Panny Plasma, but both are 100% when watching films/regular TV programs (zero blur/judder). The 'Clear' motion handling setting on the newer set does tidy up football on SKY (1080i feed) enormously without inducing any 'smearing' on regular content.
Personally, I have a couple of Samsungs - a UE48H6400 (2013MY, 1080p, c.£450) and a UE48JS9000 (2014MY, 4k, c.£1,300).
Being completely honest, neither are quite as good with something like football (and some other sports) as my old Panny Plasma, but both are 100% when watching films/regular TV programs (zero blur/judder). The 'Clear' motion handling setting on the newer set does tidy up football on SKY (1080i feed) enormously without inducing any 'smearing' on regular content.
All modern (LCD, OLED) sets are 'sample and hold' sets. They do not flicker or have refresh rates like older impulse driven (CRT/Plasma) sets used to. What they do have, as a direct consequence of the low frame rates used for TV and film, is (as you say) judder/motion blur. This is caused by how far objects move across the screen frame-to-frame, and what happens when your vision system tried to track those objects.
There are two ways to 'fix' this. Motion interpolation and Black Frame Insertion. I don't like BFI as it makes the TV flicker, others don't like motion interpolation because of the artifacts it creates and how stuff doesn't look like film anymore. To be honest they are both a compromise.
If you really want to make the best choice I suggest you read up about what I have mentioned. This will teach you what to look for (both on-screen and on paper specification), and then go and audition some sets (as suggested). Football is a good test. look for a blurry image during camera pans, and jerky motion of the ball as it moves across the screen. Looking at the TV out of the corner of your eye will show you if it's flickering.
There are two ways to 'fix' this. Motion interpolation and Black Frame Insertion. I don't like BFI as it makes the TV flicker, others don't like motion interpolation because of the artifacts it creates and how stuff doesn't look like film anymore. To be honest they are both a compromise.
If you really want to make the best choice I suggest you read up about what I have mentioned. This will teach you what to look for (both on-screen and on paper specification), and then go and audition some sets (as suggested). Football is a good test. look for a blurry image during camera pans, and jerky motion of the ball as it moves across the screen. Looking at the TV out of the corner of your eye will show you if it's flickering.
- If someone is quoting a refresh rate for an LCD screen it will be the backlight scanning rate, see BFI.
Edited by varsas on Thursday 21st January 13:54
Thats useful information to know, thanks.
I've narrowed my choice to these two, anyone care to offer their thoughts?
Samsung
http://www.currys.co.uk/gbuk/tv-and-home-entertain...
Panasonic
http://www.currys.co.uk/gbuk/tv-and-home-entertain...
many thanks.
I've narrowed my choice to these two, anyone care to offer their thoughts?
Samsung
http://www.currys.co.uk/gbuk/tv-and-home-entertain...
Panasonic
http://www.currys.co.uk/gbuk/tv-and-home-entertain...
many thanks.
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