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New Desktop HP 21KD Monitor bright/white layer

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HP 20.7" LED FHD Monitor Black 21KD
Microsoft Windows 7 (32-bit)

I'm using a computer (Windows 7 Professional 32-bit version) with two monitors (the second one is now the HP 21kd). 


I recently got a new second monitor after my previous one died. After plugging it in, I noticed that the 21kd had this strange white film/fog layer covering the display, something that none of my previous monitors had. I installed the drivers (both disk and from internet, just in case), used the new VGA cable that came with the monitor, and for the past few days I tried adjusting the brightness, contrast, colors, etc., but none of them got rid of the white layer.


I also noticed that the bottom of the display is brighter than the top, possibly something about the gradient. Making it the main display didn't fix it, nor plugging the new power cable for the monitor directly to a wall socket.


I wanted to get rid of the white layer to make images clearer (it messes up the colors of pictures) and so that it's easier on the eyes as watching the 21kd screen for a while makes my eyes ache, an issue that I didn't have with my other monitors (I tried turning down the blue light, but that didn't get rid of the white layer).


I've searched for possible solutions, which lead me to think it's either related to something about the driver, or the monitor's compatibility with my video card or system, or something about the display's backlight, or that it's simply something that lower-cost LED displays tend to have (my first and old second monitors are LCD), or something else. So I came here to see if there's anything I could do to solve this issue.


The pictures should at least give an idea of the issue:




The white film still shows up on the HP 21kd even if I crank the brightness down to zero:



HP Support Agent
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@someone11 Let's try this step: Adjusting Low Blue Light Mode:

Decreasing the blue light emitting from the display reduces the blue light exposure to your eyes. HP computers provide a setting to reduce blue light output and create a more relaxing and less stimulating image while you read content on the screen.


To adjust your monitor to a comfortable viewing light, follow the steps below.

To adjust the blue light output from the display:

  • Open the HP Display Control app.
  • Select your desired setting:
  • Low Blue Light: TUV certified. Reduces the blue light for improved eye comfort
  • Night: Adjusts to the lowest blue light and reduces the impact on sleep
  • Reading: Optimizes blue light and brightness for indoor viewing

Also, not all monitors share the same visibility, so it would be incorrect to compare two monitors unless they are both of the same model and one is brighter than the other.


P.S: Welcome to HP Community 😉


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I am an HP Employee

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