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| 4:3 or 16:9 for Possible Bartop? |
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| Blanka:
TN has no good contrast. Some have auto-adjusting brightness, so that white at 100% brightness is indeed 1:3000 contrast to black at 5% brightness. But auto-brightness is shut of by 99% of all users after one week of eye-strain. So we come back to static contrast. 2008 status on that: TN does 1:600, S-IPS does 1:1000 and S-PVA gets up to 1:1200-1:1400 Then ghosting: Ghosting is the problem that the pixels cannot cope with fast colour changes, especially minor changes. 90% black to 100% black for TFT is very hard. To elminate this, samsung and co made overdrive. This uses 2 frames to predict the 3rd frame. It eliminates ghosting, but introduces lag (because of the processing of the signal). So 8ms grey-to grey is not interesting to know. Use this to check how fast your screen is: http://tft.vanity.dk/inputlag.html Run it simultaneously on a crt and an LCD and check the difference by making a photo of the two screens side by side. Make it with a horizontal shutter, otherwise the camera introduces unwanted differences. It will be something like this with 2008 screens: CRT is lagless, TN is behind 1 frame (at 60fps) and SPVA/SIPS is behind 2 or 3 frames. But on the other hand, your brain will correct your movements on this. It's like running through a full railway station. You can do it without hitting people, even when the brain needs to process the images in tenths of seconds. Play with a lag for a week, and you cannot play on a lagless screen as good anymore! |
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