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Zero Motion Blur LCD's have arrived -- Game friendly, low input lag, CRT-sharp motion!

post #1 of 6
Thread Starter 
I've posted some information about new LightBoost strobe-backlight computer monitors in the LCD Displays Forum:

LCD Displays Forum -- Zero Motion Blur LCD's have arrived

There is also an excellent YouTube high speed video showing how the LightBoost strobe backlight bypasses pixel persistence as the motion blur barrier. The screen is kept totally dark during pixel persistence, and the backlight is strobed after all pixel transitions are complete (3D panels compatible with glasses panels made this behaviour possible, and benefits 2D gaming even if you don't like 3D). The backlight flash can even be shorter than the pixel persistence, and you no longer sample-and-hold. The LCD motion blur barrier is shattered with these monitors! Also, at 120Hz, the strobe backlight does not flicker to most people, unlike a 60Hz or even 75Hz CRT. These monitors also flickers less than plasma. And you can still disable the strobe backlight, whenever you want.

There are also many reports on the Internet forums, including esreality, HardForum, Overclockers, etc. Hopefully this technology arrives in more LCD displays, including in the home theater.
Edited by Mark Rejhon - 1/13/13 at 12:10am
post #2 of 6
There are a couple of things wrong with your assertions. Primarily there is the simple matter that "2ms" LCDs don't transition anywhere near that fast in practice. There are still plenty of pixel transition patterns that take far more than a frame to complete. A 2.5ms display followed by a 6ms blank to fit in to a 8ms 120hz frame isn't going to fix any sort of blur from a 30ms transition. smile.gif In addition, it's still pretty obvious in your video that blur is taking place. Previous numbers are still ghosted beyond the strobe point. It was not complicated to hit Pause and see a nice negative ghost of a zero floating around the succeeding 1.

Shall I go on? Alright. Pure black to pure white is the easiest transition for a modern LCD to perform. It just jams on full voltage as the cells will naturally hit their limit. Mid-gray transitions are much harder and therefore slower. These days you overvolt the cell to speed up the transition, then undervolt it just in time to not blow past your target transparency level. So your video, which fails at a test that is stacked well in your desired outcome's favor? Pff.

This reads like an advertisement. My initial gut impression is that you have profit on the line here, but I didn't dig hard enough to discover where. That gut impression isn't helped by the advertisement in your signature or referring to your own video as "There is also an excellent YouTube high speed video". Not "I posted a video", not "Here's a video I did", no it's "an excellent video" as if you just found it and wanted to share.
Edited by darklordjames - 1/13/13 at 3:37am
post #3 of 6
Flipping through the video again, it's pretty hard to find a frame that doesn't ghost the previous number on top of the new one during this fancy LightBoost test...
post #4 of 6
I'm pretty sure it's impossible to get rid of ghosting with current display technology. I did go to his site, didn't look at everything but for this I didn't see that you had to pay for anything, so it's a free HOWTO on a tweak to a video card?

The ghosting is there, but the strobe is turning off the light during a transition so it's hiding the ghosted image. At least that's what I understand from the demo.
post #5 of 6
LightBoost strobe-backlight

The name alone gives me a headache and I'm sure the technology would be even worse.

On the subject of zero motion blur, did anyone else like the hobbit in 48hz?
post #6 of 6
The action scenes and scenery shots were great in 48fps. I've had a problem for a long time with how blurry 24hz film gets in fast motion, destroying the ability to see what's going on. The dramatic shots were a bit weird, though I feel like AMC's projectors were maybe having a decoder issue that no one caught. I can see a future where all film is played back at 48hz, but filmed in a mix of 24 and 48fps depending on scene type. I'd parallel it to how different cameras are used for different scene types today. In example, Dark Knight was filmed with three distinctly different cameras, if I recall.
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