Originally Posted by <A88> ...although I personally think 4ms is a bit useless atm.
I think I read somewhere that screens with such a fast refresh rate actually have to intersperse frames with a black frame, because the eye cannot cope with such short display times, and ends up blurring the image.
Or am I imagining that?
Its not like a crt where the screen is updated using a single scan line and uses persistance of image to form a picture in your mind. Each pixel is permenantly lit and only changes when the colour its displaying does so, so the speed it changes at is not going to interfere with your eye seeing the picture (im sure someone can explain that better)
Great review... Ive been juggling the idea of getting a TFT monitor for a while.. but I think i'm going to hold off. Being as I work on a computer all day I find I never want to be on a computer when at home other than gaming, and this winter I think I'm going to make a full fledged transition from PC gaming to console. Saving up to get a 50" LDP tv with 1080p and an X360.
Because of the coupons dell is offering for these monitors they become very viable upgrades, and the wide aspect resolutions is being seen more and more in new game releases.
I think I read somewhere that screens with such a fast refresh rate actually have to intersperse frames with a black frame, because the eye cannot cope with such short display times, and ends up blurring the image.
To quote from a pc pro review,
Older display technologies rely on human persistance of vision. A single electron beam paints the image from left to right and top to bottom, and although by the time the bottom portion of the image has been painted onscreen the top has already faded, the refresh frequency is high enough that we don't conciously see any flicker. We can however percieve it.
With modern TFTs, flicker doesn't occur at all: a TFT works by holding each pixel at it's correct value for the duration of the frame. When the next frame is ready, every pixel in the frame immediately flips to display the new image - There's no intermediate period of darkness.
But for reasons that aren't fully understood, the human visual system seems to prefer a period of darkness between frames, possibly as a cue to delineate between them. when pixel response times become very low, the immediate switch from one image to another leads to an effect where by the visual processing ares of the brain 'smooth over' the two frames. This results in what appears to be pronounced smearing when there is none...
...To combat the effect, manufacturers are investigating the introduction of brief artificial blank frames: a technique known as black frame insertion. Viewsonic claims the VX924 has this feature, but not all manufacturers will initially be employing it.
I've gotta agree. When 1600x1200 is brought to 19", I'd consider. I dunno if it ever will be, but I'm sure it's possible, considering the resolution of the 5-8" screens for cars and whatnot (and the PSP probably, though I dunno the specs as I have no interest in getting one). I couldn't have a bigger screen with lower res than I have now. I'm definately tempted to save for a 20" widescreen or something though... (wish they came in 1920x1080, haven't seen anything in that, just close). I did find in my short search that the 7800GTX has already dropped fairly well below the $599 msrp :D
Hey i like the use of Little Gamers (www.little-gamers.com) background in the first shot of the TFT. It's good to see you've got taste when it comes to your web comics :)
Originally Posted by WILD9 Its not like a crt where the screen is updated using a single scan line and uses persistance of image to form a picture in your mind. Each pixel is permenantly lit and only changes when the colour its displaying does so, so the speed it changes at is not going to interfere with your eye seeing the picture (im sure someone can explain that better)
Yes, I know LCD screens don't scan like a CRT, I wasn't talking about persistence of vision, I was talking about the effect that Corvyne quoted from the PCPro article (thanks for that, Corvyne, I'm glad I wasn't imagining things):
Quote:
Originally Posted by Corvyne ...human visual system seems to prefer a period of darkness between frames...This results in what appears to be pronounced smearing when there is none...
What I don't understand is why we don't suffer from this while looking at other things - I know we blink when we move our heads from side to side (I'll pause a little, while I wait for you to experiment...), but if things move in front of us, why don't we get loads of matrix-like blurs?
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think ill stick with my 19" crt for the moment though.
1360?
<A88>
Or am I imagining that?
but could i have a link to that Cool red-white background with the ninja on? Please? :D
I wounder if they are rebadged LG monitors with a bit more plastic stuck on? :?
This issue is now doing my head in - I can't see why I can have 1600x1200 on my 15" notebook monitor, but not on a desktop TFT smaller than 20"...
If at all possible, you guys should review the dell ultrasharp 2405FPW and the ultrasharp 2005FPW. (http://accessories.us.dell.com/sna/ProductDetail.aspx?sku=320-4221&c=us&cat=snp&category_id=6198&cs=04&l=en&mnf=694&Page=productlisting.aspx). They're pushing the widescreen arena to PC users and with the deals you find on www.slickdeals.net and www.gotapex.com you can usually pick them up for about $780.00 USD and $400.00 USD Respectively.
Because of the coupons dell is offering for these monitors they become very viable upgrades, and the wide aspect resolutions is being seen more and more in new game releases.
To quote from a pc pro review,
Older display technologies rely on human persistance of vision. A single electron beam paints the image from left to right and top to bottom, and although by the time the bottom portion of the image has been painted onscreen the top has already faded, the refresh frequency is high enough that we don't conciously see any flicker. We can however percieve it.
With modern TFTs, flicker doesn't occur at all: a TFT works by holding each pixel at it's correct value for the duration of the frame. When the next frame is ready, every pixel in the frame immediately flips to display the new image - There's no intermediate period of darkness.
But for reasons that aren't fully understood, the human visual system seems to prefer a period of darkness between frames, possibly as a cue to delineate between them. when pixel response times become very low, the immediate switch from one image to another leads to an effect where by the visual processing ares of the brain 'smooth over' the two frames. This results in what appears to be pronounced smearing when there is none...
...To combat the effect, manufacturers are investigating the introduction of brief artificial blank frames: a technique known as black frame insertion. Viewsonic claims the VX924 has this feature, but not all manufacturers will initially be employing it.