swaaye wrote:Welch wrote:75hz vs 120hz..... is the premium for the 120hz really worth it, and will it be noticeable. Along with that question... how to figure out if these monitors actually display their full advertised refresh.
I have been curious about this too. I know that a lot of the TVs do internal interpolation that does look nice on the eyes but obviously isn't ideal. Actually a downside to doubling the framerate like that with film material is that it will make the film look more like video and that is (subjectively) bad for the cinematic look. I bet it's nice for sports viewing though.
I don't understand this. I'm not saying there's nothing to it, especially since it's a subjective thing, but I don't really get it. Film is 24 fps; video is 30. The visible differences between the two are in the color gamut / saturation and the grain much more than the framerate. This is especially true when you're viewing both on a 60p display, because in the case of film you get every odd frame displayed 3 times and every even frame displayed twice (or vice versa -- aka 3:2 pulldown, or
telecine); whereas (interlaced) video just gets each frame displayed twice (or once, for progressive). I have a hard time understanding how that makes video seem
worse. (Yeah, if you're the kind of person who can discern high frame-rates, I guess you might notice -- but you're exactly the person who wants high frame rates for your games, so why is that bad for movies?) And of course with 120Hz you get each film frame displayed 5 times and each video frame displayed 4 times (or twice, in the case of progressive) -- which is what makes 120Hz desirable, that it's a multiple of both 24 and 30/60.
It's true many sets don't just repeat the same frame but (optionally) generate an interpolated frame based on the previous and next frame, but the quality of the interpolation algorithm may not improve the overall experience (afterall there really isn't more information, just the illusion of smoother motion) so It's unclear if this really will help with fast-moving subjects like sports -- video games are
adding motion blur because it improves the subjective experience, so it seems odd for live video to be trying to go the other way. What we really need for those kinds of subjects is a bump up in framerate in the cameras, but that isn't happening for general broadcast/recording anytime soon. And you definitely don't want that kind of interpolation enabled if you are using it for gaming, because it requires the display to wait for the next frame before displaying the current one, so it's going to introduce additional lag (which is why it's generally billed as a movie-related feature, or made available in movie "modes").
Interestingly, some of the new "240Hz" models aren't doing additional interpolation; they just flash the backlight twice as fast to give the effect of a faster refresh (the mfrs sometimes call this "240Hz
effect if you look carefully).
However, considering that the LCD monitors claiming 120Hz seem to need dual link DVI, I'm thinking that they are the real deal. At least on some level...
I don't know either way, but I would think that if the monitors (as opposed to the TVs) really accepted and displayed 120Hz input, they would be marketing that feature a lot more than they have.
Welch wrote:Possibly... but even with a Dual link they may just being ACTUALLY transferring data higher than 60hz at 1920x1080 (which is supposedly right at the cap of a single link)... so perhaps they really only do something like 85-90 and the rest is interpolation, I think this deserves some REAL looking into by TR, especially if we as consumers are going to be bombarded with desktop monitors like these, some of which may be based purely on gimmicks. Then again I always thought that TN-6 bit hitting 16.7 million by using dithering was very deceitful.
Well, I don't know that it's TR's job to investigate
everything (when was their last monitor review?) but we'll have to keep an eye out for reviews of these models (can you list them?) wherever those reviews might turn up.
(Completely off-topic: hey, look -- Welch's postcount plus my postcount = 10K exactly!)