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LightBoost, G-SYNC, Turbo240: 120Hz Strobe Backlight LCDs / No Motion Blur! - Page 25

post #241 of 2929
Thanks a lot for that, I'll be sure to try it soon!
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post #242 of 2929
Thread Starter 
Quote:
Originally Posted by hamzatm View Post

Thanks a lot for that, I'll be sure to try it soon!
I just spent another hour experimenting with more adjustments, and have come up with even better values that improves the bottom-end grayscale and tint during off-axis viewing:

The BENQ XL2411T Crimson Fix (IMPROVED)

Zero crimson tint with BENQ LightBoost!
On the subject of BENQ color calibration, I cancel out the crimson tint via nVidia Control Panel, by doing the following:

Via Monitor Menus
Monitor's Contrast Setting = 65 .... (If using nVidia Gamma 1.10)

Via nVidia Control Panel - "Adjust Desktop Color Settings"
Adjust them individually, R, G, B.
---
R Contrast = 30%
G Contrast = 45%
B Contrast = 30%
---
R Brightness = 10%
G Brightness = 40%
B Brightness = 10%
---
R,G,B Gamma = 1.10

Make sure to readjust Monitor OSD contrast everytime you change Gamma. nVidia Gamma 1.10 worked best with a monitor OSD Contrast of 65.
With these settings, I can see the difference between RGB(0,0,0) and RGB(1,1,1), without a wrongly tinted color in backgrounds or in dim colors.

Test Patterns Used
-- Lagom Contrast Pattern
-- Lagom Black Level
post #243 of 2929
I was about to pull the trigger on a BenQ when I saw this (clicky) for $100 less.

Anyone have one of these? If not I may snag it and post my results.
Edited by PiERiT - 1/28/13 at 10:40am
    
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post #244 of 2929
Quote:
Originally Posted by PiERiT View Post

I was about to pull the trigger on a BenQ when I saw this (clicky) for $100 less.

Anyone have one of these? If not I may snag it and post my results.
Whao! This monitor just released. Awesome price! Cant wait to hear some results. thumb.gif
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post #245 of 2929
I ordered mine from amazon should be here on February 4th, I can't wait to try light boost on it and see how it does compared to my previous benq xl2420tx.
post #246 of 2929
I tried 100Hz lightboost, it has exactly the same ghosting effect. Also tried the anti crimson tint settings posted above, it made the monitor look super green - perhaps it isn't a red tint I'm seeing then? Stuff definitely looks pink and darker on the HE.

To be honest the ghosting looks like you have overdrive on waaaay to high, with agressive light/dark coronas visible.

Regarding colour, in the Lagom full screen Inversion test the first image up (current: 1) the HE looks green. Yep,dark green. Whereas the H shows the image as grey which I presume is correct?

In the 11-box pixelwalk test, box 2a and 2b flicker between grey, purple and green!! Whereas they correctly stay grey on the H. Crazy colour problems..
Edited by hamzatm - 1/28/13 at 12:48pm
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post #247 of 2929
Quote:
Originally Posted by PiERiT View Post

I was about to pull the trigger on a BenQ when I saw this (clicky) for $100 less.

Anyone have one of these? If not I may snag it and post my results.

Cool, just ordered one to test out. That is a fabulous price for the new 144 Hz 24" Asus.
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post #248 of 2929
Quote:
Originally Posted by CallsignVega View Post

Cool, just ordered one to test out. That is a fabulous price for the new 144 Hz 24" Asus.

I hereby charge you with the dangerous task of performing and input lag test vs. your Sony FW900 and XL2411T. Failure to perform this task will result in death, note that this is not a threat. We will all die at some point in the future.
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post #249 of 2929
Thread Starter 
Quote:
Originally Posted by hamzatm View Post

I tried 100Hz lightboost, it has exactly the same ghosting effect. Also tried the anti crimson tint settings posted above, it made the monitor look super green - perhaps it isn't a red tint I'm seeing then? Stuff definitely looks pink and darker on the HE.
The numbers are optimized for BENQ XL2411T's. It's possible that adjustments needs to be very different for the ASUS VG278HE.
Quote:
To be honest the ghosting looks like you have overdrive on waaaay to high, with agressive light/dark coronas visible.
Sounds like the VG278HE uses very different overdrive settings than VG278H. The RTC needs to be optimized so that the strobe flash occurs when the pixels are near its final value. Sometimes they have to use aggressive RTC, but that is not seen by the human eye as long as that is kept in the dark. Apparently, it doesn't seem to be as well-optimized on the VG278HE as the VG278H (if it's not a defective panel)
Quote:
Regarding colour, in the Lagom full screen Inversion test the first image up (current: 1) the HE looks green. Yep,dark green. Whereas the H shows the image as grey which I presume is correct?
Correct, that's the correct color. A dark-green inversion pattern is unusual; do you have access to another VG278HE to determine if it's just simply a defective panel (it might be normal, but I'm now rather curious), or a lower-quality panel.
Quote:
In the 11-box pixelwalk test, box 2a and 2b flicker between grey, purple and green!! Whereas they correctly stay grey on the H. Crazy colour problems..
Yes, excessively flickering inversion patterns are bad. The BENQ XL2411T is actually pretty good, much better than my VG278H.

Interesting to hear your observations.
post #250 of 2929
Thread Starter 
Quote:
Originally Posted by CallsignVega View Post

Cool, just ordered one to test out. That is a fabulous price for the new 144 Hz 24" Asus.
I can't wait to hear your VG248QE test results. I suspect it will be roughly about the same LightBoost as the BENQ XL2411T, although it may require a very different color calibration to cancel out any LightBoost-specific tinting effects.

I took more than 2 hours to come up with BENQ adjustment results. I used to calibrate home theater displays, so I know how to set the black and white points by eye, and find out where the clipping points are, and maximize the greyscale range. A Spyder would help though. But you can also, additionally, try using Windows 8 Display Calibration utility, to compensate for the crimson tint, too. I did that, but I did even better when I was using the Lagom patterns.
Edited by mdrejhon - 1/28/13 at 5:04pm
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