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LCD with strobing backlight?

post #1 of 7
7/16/09 at 6:27pm
Thread Starter 
After suffering with motion smearing for a couple of years now I finally think I know what type of LCD "blur" I'm having trouble with.

I've been reading about retinal blur due to how a progressive image is smeared across the screen as opposed to a strobed image like that on a CRT.

Can anyone recommend a good LCD that strobes the back light (thus reducing retinal blur) but doesn't use any frame interpolation?

I was looking at Philips' "Clear LCD" solution, but apparently while it does strobe the backlight it has the dreaded video effect that makes films look unnatural.

Is there any way to get the best of both worlds?

I was very close to going for a plasma but I believe the problem is only reduced and then I'd have to contend with phosphor lag.

Any help would be greatly appreciated!

Thank you.
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post #2 of 7
7/16/09 at 9:29pm
Quote:
Originally Posted by Rottweiler29 View Post

After suffering with motion smearing for a couple of years now I finally think I know what type of LCD "blur" I'm having trouble with.

I've been reading about retinal blur due to how a progressive image is smeared across the screen as opposed to a strobed image like that on a CRT.

Can anyone recommend a good LCD that strobes the back light (thus reducing retinal blur) but doesn't use any frame interpolation?

All LCDs that offer backlight strobing (or backlight scanning when a local dimming LED backlight is used) also offer some kind of frame interpolation.
This of course provokes the question if the backlight strobing can be independently controlled from the frame interpolation!

Quote:


I was looking at Philips' "Clear LCD" solution, but apparently while it does strobe the backlight it has the dreaded video effect that makes films look unnatural.
Is there any way to get the best of both worlds?

AFAIK the Samsung A950 is able to activate/deactivate the backlight scanning independently from the frame interpolation.

Also, the Sony XBR8 either uses frame interpolation (Motionflow set on "Standard" or "Smooth") or backlight scanning (Motionflow set on "Clear"). Personally, I have it on clear all the time and I don't feel that movies look like TV shows. With a test/demonstration Blu-ray I have verified (and shown to visitors) how the backlight scanning improves the sharpness of moving details - sorry if this sounds like markting hogwash but I'd never buy an LCD without this feature again (regardless from which company!).

Quote:


I was very close to going for a plasma but I believe the problem is only reduced and then I'd have to contend with phosphor lag.

Well, nothing is perfect.

bye
Benny42
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post #3 of 7
7/17/09 at 7:49am
Thread Starter 
Thanks for the reply Benny. I'll look up the Sony model you mention.

I find it strange that Progressive displays are the new thing when retinal blur is worse than interlaced flicker.

And just how pointless is it to create a HDTV that has less resolution than a CRT when it handles motion??? They should read "HD on still shots".

To be honest I've hardly enjoyed a film at all since I replaced my CRT.
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post #4 of 7
7/17/09 at 7:58am
Thread Starter 
Just checked the Sony out but they're too big for my room. I need a 42" Max.
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post #5 of 7
7/17/09 at 1:21pm
Quote:
Originally Posted by Rottweiler29 View Post

Just checked the Sony out but they're too big for my room. I need a 42" Max.

Toshiba 42" ZV650U. Scanning backlight and much less SOE than Sony or Samsung.
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post #6 of 7
7/17/09 at 6:40pm
Thread Starter 
Thanks for the suggestion.

After looking at the model online though it doesn't say anything about whether the scanning backlight is independant from any frame interpolation.
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post #7 of 7
7/18/09 at 6:58am
Quote:
Originally Posted by Rottweiler29 View Post

Thanks for the suggestion.

After looking at the model online though it doesn't say anything about whether the scanning backlight is independant from any frame interpolation.

The scanning backlight on/off is completely independent of the film stabilization modes (off, standard or smooth).
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