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May 11th, 2016 10:00
Ultrasharp u2414h Pixel Refresh Problem
I have a different question about u2414h. its first time that i am using an ips panel. But i can easily notice the pixel refresh!. I don't know how can i explain this clearly. When i focus an area on panel, can see that moving (refreshing) pixels. Especially on dark grey, dark brown backgrounds. I tested my panel with pixel walk (inversion) test. (Inversion (pixel-walk) - Lagom LCD test ) There is no walk. When i apply this test on my other TN panel, pixels are jumping especially 4b section. But u2414h looking fine. I don't want to replace it ,because no dead pixel, very low backlight bleeding and glow.
i tried Dell built-in diagnostic tool. Again, on a gray screen, when i focus an area, can see pixel move or refresh whatever it's name!
So where is my problem? Its a characteristic of an AH-IPS panel? Or its a disadvantage of 3H hard coat screen? Or a panel fault?
DELL-Chris M
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May 11th, 2016 19:00
You need to post a video showing us what you perceive as a problem.
onnorgs
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May 13th, 2016 12:00
i tried to record video but its not clear on video. i searched about this problem and found a similar thing. Its look like video grain or noise. I uploaded a grainy video, please look at background to notice grain/noise. But this example has very high noise. My panel has much less than this video ( i only notice this in dark areas and need little closely inspection)
its a fault or 3H coating disadvantage or AH-IPS panel characteristic?
Video
DELL-Chris M
Community Manager
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May 13th, 2016 22:00
We need to see your monitor, not someone else's monitor. Remove the computer, video card, and video card cabling from the troubleshooting scenario. Perform the monitor BID (Built-in Diagnostics), page 55-57. If the BID does not show the issue, the monitor is fine.