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LightBoost, G-SYNC, Turbo240: 120Hz Strobe Backlight LCDs / No Motion Blur! - Page 61

post #601 of 2929
Great read. Explains it better than I could. Good times for monitors with Light Boost 2 tech included. smile.gif

Source - Zero Motion Blur LCD's have arrived -- Game friendly, low input lag, CRT-sharp motion!
Quote:
With a LightBoost strobe backlight, you're impulse-driving instead of sample-and-hold. The pixel persistence is kept in total darkness, and the backlight is strobed when pixel transitions are virtually completely finished (>99%+). The strobe length can be shorter than the pixel persistence, breaking the pixel persistence barrier. Motion blur now becomes below human perceptible levels, no blur, can even tell individual pixels even moving at 960 pixels per second. PixPerAn text speed score of 30. You can disable the strobe backlight, whenever you don't need the zero motion blur.


Only down side is when I spark up a Netflix movie just like a game there is a brief moment of black for 2 secs while Light Boost activates. Otherwise it took my already smooth 120 Hz gaming and improved it when I'm not in 3D Vision gaming but can still utilize Light Boost 2 from the monitor. biggrin.gif
     
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post #602 of 2929
Quote:
Originally Posted by shedokan View Post

Isnt it same for 120Hz in general?


It is but i was asking for the lighboost hack in particular.
post #603 of 2929
by the way mark there is still some slight flicker/stutter when google chrome smooth scroling but the thing is its only in half of the websites, some do for me and some dont mad.gif
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post #604 of 2929
Thread Starter 
Quote:
Originally Posted by pac08 View Post

After a lot of reading i'm still kind of confused. If i've understood correctly, the lb hack is useful if you manage to stay around or over the 100fps mark during playing games?
It's the same thing as a CRT.

30fps@60Hz looks somewhat similar on both CRT and LCD
However...
60fps@60Hz looks much, much, much clearer on CRT than on LCD
(perfectly-clear pans, fast turns, strafing, circle strafing, 180 degree flicks, clear-motion like old Sega Model 3 arcade video games, "NES-perfect-clear" fast scrolls (CRT platformers) -- whatever memories you have of CRT)

The benefits of a stroboscopic display (CRT, Plasma, LightBoost) gradually improves the closer you get to fps=Hz (or exceed)
As a rule of thumb:

60fps -- little blur benefit; and sometimes it's worse (e.g. some people prefer motion blur over the double image effect)
80fps -- motion blur now looks significantly reduced (stutters still contributing to motion blur)
100fps -- motion blur mostly gone (stutters still contributing to motion bur)
120fps -- motion looks perfect, zero stutters, zero motion blur (especially VSYNC ON, or when using very well-tweaked VSYNC OFF)

So as a rule of thumb, X fps @ Y Hz on a CRT, it looks similar on LightBoost.

Keep in mind, human factors apply too:
-- If you can't tell apart a CRT and a newer/modern 60 Hz LCD in motion clarity, you probably won't benefit from LightBoost.
-- If you can't tell apart 60 fps and 120 fps, then you probably won't benefit from LightBoost either.
-- If you can't run more than 60fps, then you probably won't benefit either.
-- If you have a wildly variable framerate (e.g. wild fluctuations 60fps<->120fps), LightBoost won't help as much, the stutters/judders reduce motion motion clarity
Edited by mdrejhon - 3/8/13 at 8:47pm
post #605 of 2929
Quote:
Originally Posted by mdrejhon View Post

It's the same thing as a CRT.

30fps@60Hz looks somewhat similar on both CRT and LCD
However...
60fps@60Hz looks much, much, much clearer on CRT than on LCD
(perfectly-clear pans, fast turns, strafing, circle strafing, 180 degree flicks, clear-motion like old Sega Model 3 arcade video games, "NES-perfect-clear" fast scrolls (CRT platformers) -- whatever memories you have of CRT)

The benefits of a stroboscopic display (CRT, Plasma, LightBoost) gradually improves the closer you get to fps=Hz (or exceed)
As a rule of thumb:

60fps -- little blur benefit; and sometimes it's worse (e.g. some people prefer motion blur over the double image effect)
80fps -- motion blur now looks significantly reduced (stutters still contributing to motion blur)
100fps -- motion blur mostly gone (stutters still contributing to motion bur)
120fps -- motion looks perfect, zero stutters, zero motion blur (especially VSYNC ON, or when using very well-tweaked VSYNC OFF)

So as a rule of thumb, X fps @ Y Hz on a CRT, it looks similar on LightBoost.

Keep in mind, human factors apply too:
-- If you can't tell apart a CRT and a newer/modern 60 Hz LCD in motion clarity, you probably won't benefit from LightBoost.
-- If you can't tell apart 60 fps and 120 fps, then you probably won't benefit from LightBoost either.
-- If you can't run more than 60fps, then you probably won't benefit either.
-- If you have a wildly variable framerate (e.g. wild fluctuations 60fps<->120fps), LightBoost won't help as much, the stutters/judders reduce motion motion clarity

Nice avatar, can you tell us the story behind it?
   
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post #606 of 2929
@mdrejhon Thank you very much for clarifying that
post #607 of 2929
Are the disadvantages of this tweak really noticeable in games?
post #608 of 2929
Quote:
Originally Posted by kevindd992002 View Post

Are the disadvantages of this tweak really noticeable in games?

Don't notice any at all, games is where they are the most unnoticeable!
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post #609 of 2929
Quote:
Originally Posted by mdrejhon View Post

It's the same thing as a CRT.

30fps@60Hz looks somewhat similar on both CRT and LCD
However...
60fps@60Hz looks much, much, much clearer on CRT than on LCD
(perfectly-clear pans, fast turns, strafing, circle strafing, 180 degree flicks, clear-motion like old Sega Model 3 arcade video games, "NES-perfect-clear" fast scrolls (CRT platformers) -- whatever memories you have of CRT)

The benefits of a stroboscopic display (CRT, Plasma, LightBoost) gradually improves the closer you get to fps=Hz (or exceed)
As a rule of thumb:

60fps -- little blur benefit; and sometimes it's worse (e.g. some people prefer motion blur over the double image effect)
80fps -- motion blur now looks significantly reduced (stutters still contributing to motion blur)
100fps -- motion blur mostly gone (stutters still contributing to motion bur)
120fps -- motion looks perfect, zero stutters, zero motion blur (especially VSYNC ON, or when using very well-tweaked VSYNC OFF)

So as a rule of thumb, X fps @ Y Hz on a CRT, it looks similar on LightBoost.

Keep in mind, human factors apply too:
-- If you can't tell apart a CRT and a newer/modern 60 Hz LCD in motion clarity, you probably won't benefit from LightBoost.
-- If you can't tell apart 60 fps and 120 fps, then you probably won't benefit from LightBoost either.
-- If you can't run more than 60fps, then you probably won't benefit either.
-- If you have a wildly variable framerate (e.g. wild fluctuations 60fps<->120fps), LightBoost won't help as much, the stutters/judders reduce motion motion clarity

You working on 60hz lightboost hack in the near future? I see you got it for Mame emulator I think. So would it be possible for regular pc gaming in the near future for more demanding games. Thanks for all your work.
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post #610 of 2929
indeed

Anyone with BenQ XL2411T checked if he could make LB stick simply by using CRU? No inf/reg files? My mate might be able to get it instead of the VG248QE due to price differences so I'm curious
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