HP ZR2440W LED Backlight PWM

Review: http://goo.gl/2wNuQ

German: Aufgenommen mit einer Belichtungszeit von 1/1000 Sek. Die Kamera stellt das Flackern übertrieben dar. Für mich ist auch bei 0% Helligkeit das Bild angenehm und flimmerfrei.

English: Taken with a shutter speed of 1/1000 sec. The flickering taken by the camera is exaggerated. Even at 0% brightness the screen looks flicker-free to me.

Category:

Science & Technology

Tags:

• HP
• ZR2440W
• Flickering
• Flicker
• Flackern
• PWM
• LED
• Backlight
• Hintergrundbeleuchtung
• Flackert
• Flimmern
• Flimmert

[Igorsov]

Hey Snoggy82, check this video out. It seems like Asus monitors do better on PWM.

youtube.com/watch?v=5aPaEoA8a3­s&list=UUIJmBJmQGKNzqSGsawBFey­A&index=11&feature=plcp

[Shoggy82]

@Igorsov This video is completely worthless because it does not provide any details about the used shutter speed. If I use a lower shutter speed the HP monitor would end up with the same result. This is the reason why I decided to use a high shutter speed so the effect becomes visible in all its "glory" ;-)

I am pretty sure that the video with the Asus monitor uses a MUCH lower shutter speed because reviews have proven that the HP is using a pretty high frequency for the backlight.

[Igorsov]

@Shoggy82 I see. Thanks a lot for your help Shoggy82. It seems like I will be finally purchasing the HP ZR2440W tonight. It took me awhile to decide. Just hope that the 16:10 format won't bother me too much in games :)

[Shoggy82]

@Igorsov The 23" DELL has the big advantage that it is much cheaper in price but also only a 16:9 screen. I think the 24" provides the best value for money. The HP is technically almost the same screen.

[Shoggy82]

@Igorsov This video is not really about good or bad. It is part of the review to show how the backlight of this screen is working. Since this pulsed method is not visible to the eye I have captured it with a very fast shutter speed.

Of course I do not see any of these lines or do you really think I would use it one more second if this video would show how the monitors acts in reality? ;-)

[Igorsov]

@Shoggy82 Trying to decide right now between the HP ZR2440W, DELL U2412M or DELL U2312HM. Any ideas? Thanks :

[Igorsov]

@Shoggy82 I don't know much about monitors, so this question may be lame, but I will ask anyway :) You still can see these lines on the screen, so what's the point of the video? Does this video show something good about the monitor? Thanks in advance.

[Shoggy82]

@Igorsov I don't know how the other monitors handle the PWM backlight but the review from prad.de shows a high frequency for the ZR2440W so it should be fine :-) As said, there is no need to panic about the input lag. Very overrated... - unless you have REAL experience with such a problem.