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all important response times....for those who watch sports..

Posted: Wed Feb 09, 2005 7:02 pm
by mikestloc
from my limited reading, here's what i can gather...

current flat panel lcds....14ms
sony qualia rear proj. lcd....5ms
upcoming sed tvs......1ms

i can wait...i want my sports clear......

Posted: Thu Feb 10, 2005 8:24 am
by Richard
DLP is an answer...

Check out the new DLP flat panel from InFocus/Screenplay.

Posted: Thu Feb 10, 2005 4:25 pm
by mjm76
Richard,

Is this the one you mean? If this is it what are the big advantages to this type of TV?

http://www.infocushome.com/amer/eng/pro ... 61md10.asp

Thanks for any info.

Posted: Thu Feb 10, 2005 6:13 pm
by Richard
I have not seen one but there is likely a price being paid in performance somewhere due to the loss of depth. Wide field lenses simply are not accurate. I suspect they may be using a technology somebody showed me about a year ago that allowed you to put a FPTV business projector within feet of an extremely large screen. Basically it dramatically reduced the throw distance.

The advantages? Large screen. Bright. No burn in. No phosphor/pixel lag. 6.85" deep.

This product specifically targets the flat panel market. That said I am sure it still has too much depth for many wall mount applications.

Based on past experience with these guys I fully expect a decent picture regardless of artifacts created by the short throw process. Casual viewers should check it out and videophiles should probably wait until someone has run it through it's paces.

Re: all important response times....for those who watch spor

Posted: Fri Feb 11, 2005 6:47 pm
by donshan
mikestloc wrote:from my limited reading, here's what i can gather...

current flat panel lcds....14ms
sony qualia rear proj. lcd....5ms
upcoming sed tvs......1ms
i can wait...i want my sports clear......
What keeps me reading this forum is ALL the new things I learn that I never heard of that I don't understand!. What response time is this?

All video displays show 30 frames per second (aprox.). This number was picked so that the human eye persistence of vision means you cannot see the individual frames . 30 frames/sec = 0.033 seconds/frame or 33 milliseconds. If you can't see the 33 millisecond frames what is this important response time? At the movies the a frame changes about every 41ms and you can't see that either.

New term to me, does it affect what you can see? .

Thanks, Don

Posted: Sat Feb 12, 2005 8:47 am
by Richard
I guess we need an entry in the dictionary...

This measures what happens after you fire a pixel. In other words how quickly does it extinguish after being turned on. If it does not happen fast enough then you will see trails from the prior image. As for the original concern of this thread I would need to do research but it was the old LCD flat panels that had this problem. The new generation is fast enough based on feedback from others and my own experience. The poster is implying it isn't and there in lies the research because if you are picking nits he may be correct.

Posted: Sat Feb 12, 2005 10:37 am
by donshan
Richard,
Thanks, as I said, always something new to learn here. I can see if the pixels don't turn off on one frame, before the next frame hits it is a serious issue.

Posted: Sat Feb 12, 2005 12:56 pm
by Richard
If it does not happen fast enough then you will see trails from the prior image.
BTW, that used to also be a problem with early digital video processing for VCRs and television... like about 10-15 years ago.

Old info that might come up again...