masterotaku wrote:That's really good. 0.5ms strobing is like 2000fps at 2000Hz without strobing (but it will probably be too dim for everyone). But hey, it's optional. If I want to try it, I can use it.
Yes, 0.5ms strobed has the same persistence as 2000Hz flickerfree.
(That's why low-persistence flickerfree/strobefree/phosphorfree don't exist on the consumer market; all are high-persistence)
masterotaku wrote:Chief Blur Buster wrote:Even though it isn't as ghost-free as ULMB/LightBoost
Chief Blur Buster wrote:Quote from other thread: I can say, however ULMB has less ghosting (strobe crosstalk). The more you get closer from 75Hz->144Hz, the more ghosting occurs, since strobing works better at lower refresh rates with larger blanking intervals. So 144Hz strobing is not necessarily a panacea.
Oh, man, more compromises. Nothing is perfect
. Ghosting when strobing... does that mean the strobe occurs sooner in the refresh or something? Maybe they tried to reduce input lag. But well, their firmware is still in beta. Maybe this ghosting can be reduced/solved.
All strobe backlights have it to a varying extent -- slight leakage of previous refresh cycle into the next refresh -- as LCD is not perfect at finishing transitioning perfectly completely before the next refresh cycle for all possible transitions. Sometimes it's less than 1%. Other times it's more like 5%. Less than that and it doesn't really bother during most gaming. But anything more than that, and the strobe crosstalk interferes with game enjoyment. I call it "strobe crosstalk" because it's roughly the same intensity as 3D crosstalk as a very faint double image chasing behind motion. Sometimes it is below human perceptible levels. Even on one of the best, the ASUS VG248QE and XL2411T, can become fully ghostfree to the human eye along the center band. Other strobe monitors, have more strobe crosstalk which can go down if you do some adjustments (e.g. lower contrast, increase blanking intervals, etc). The XL2720Z does not have automatic accelerated scan-out and blanking-interval lengthening techniques (that ULMB, LightBoost, and Turbo240 does). to let pixels settle between refreshes, so using ToastyX to do that (e.g. Vertical Total 1350 for 1080p@100Hz) helps reduce strobe crosstalk significantly. The good thing is that strobe crosstalk can be made quite low (at least for the all-important center band of the screen), after tweaking.
Strobe crosstalk is roughly as follows:
less strobe crosstalk (razor-sharp ghost images)
ASUS VG248QE/
BENQ XL2411T (LightBoost / ULMB)
BENQ XL2420TE
ASUS VG278H (Contrast55%, dull but strobe crosstalk free)
BENQ XL2720T/
ASUS VG278HE
BENQ XL2720Z(BENQ Blur Reduction, fixed firmware, ToastyX tweaked)
EIZO FG2421 (warmed up, most colorful strobed monitor)
ASUS VG278H (Contrast94%, more colorful)
BENQ XL2720Z(BENQ Blur Reduction, fixed firmware, not ToastyX tweaked)
EIZO FG2421 (cold)
BENQ XL2720Z(BENQ Blur Reduction, buggy firmware)
more strobe crosstalk (razor-sharp ghost images)
I have more than half of the above monitors sitting here, and have otherwise seen samples of others at other times. If strobe crosstalk bothers you so much above color issues, I highly recommend the VG248QE. If colors bothers you so much, I highly recommend the EIZO FG2421 as it's the most colorful, bright, contrasty, non-TN strobed 120Hz monitor (albiet with a smidgen more lag & panel need to be a warm temperature to be mostly ghost free).
I will be writing a detailed head-to-head among the strobe backlights this year, after a few reviews are published (e.g. the long-overdue FG2421 review).
I say good job to the Chief!