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onnorgs

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10 years ago

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onnorgs

2 Posts

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1001

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

    Community Manager

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    Posted May 11th, 2016 19:00

    You need to post a video showing us what you perceive as a problem.


    DELL-Chris M (old account)

    #IWork4Dell

  • onnorgs

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    Posted 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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    Posted 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. 


    DELL-Chris M (old account)

    #IWork4Dell