Small dot on my LG Monitor that changes colors between white/black depending on angle

[evanzhao5501]

I bought a 24 inch LG Monitor a couple months ago and it was working fine until today when I was cleaning the thing and I spotted what I thought was dirt. I rubbed softly using a microfiber cloth and some elbow grease, but the dot wouldn't budge. On closer inspection, it seemed to be on the inside of the monitor. I first suspected it was a dead pixel, but I don't think dead pixels change colors depending on the angle from which I look at it. The dot appears black when faced straight-on, but appears white when viewed from the side. What could this dot be? A speck of dust? Or something more serious?

 

[stdragon]

There are monitor utilities that you can download that will paint the screen solid colors in order to validate stuck/dead pixels. If you have none, then yes, it's safe to assume it's a speck of dust.

 

[evanzhao5501]

There are monitor utilities that you can download that will paint the screen solid colors in order to validate stuck/dead pixels. If you have none, then yes, it's safe to assume it's a speck of dust.

I've tried this already, I installed UDpixel which painted my monitor a cycle between green, white, black, red, and blue. The problem is that I can't discern whether or not it's a dead pixel or dust. It seems to be visible on all colors except black. How can I be sure?

 

[stdragon]

There are monitor utilities that you can download that will paint the screen solid colors in order to validate stuck/dead pixels. If you have none, then yes, it's safe to assume it's a speck of dust.

I've tried this already, I installed UDpixel which painted my monitor a cycle between green, white, black, red, and blue. The problem is that I can't discern whether or not it's a dead pixel or dust. It seems to be visible on all colors except black. How can I be sure?

So a pixel is really just a grouping of three LEDs. For example, RGB (Red, Green Blue). So when you cycle through all RGB colors, it's testing all three LEDs independently for each pixel. You get the color White when all three RGBs are lit up at the same time of the same transparency. That's because all light is generated from a back-lit panel.

If the pixel in question handles RGB and white, but not black. That leads me to believe that you've got a spec of dust that's refracting light towards you from the adjacent pixels nearby.

 

[evanzhao5501]

There are monitor utilities that you can download that will paint the screen solid colors in order to validate stuck/dead pixels. If you have none, then yes, it's safe to assume it's a speck of dust.

I've tried this already, I installed UDpixel which painted my monitor a cycle between green, white, black, red, and blue. The problem is that I can't discern whether or not it's a dead pixel or dust. It seems to be visible on all colors except black. How can I be sure?

So a pixel is really just a grouping of three LEDs. For example, RGB (Red, Green Blue). So when you cycle through all RGB colors, it's testing all three LEDs independently for each pixel. You get the color White when all three RGBs are lit up at the same time of the same transparency. That's because all light is generated from a back-lit panel.

If the pixel in question handles RGB and white, but not black. That leads me to believe that you've got a spec of dust that's refracting light towards you from the adjacent pixels nearby.

By "handle", do you mean that it shouldn't show up at all while the screen is showing the RGB colors? Because the black dot does still show up in the RGB/white color screens, it's just that the black screen is too dark for me to be able to make out the dot. All and all, I do believe it is a speck of dust. I put my cursor on the spot and moved my head to switch angles, but the dot seemed to follow me and not stay in one place. So how would I go about removing the dust piece?

 

[stdragon]

So how would I go about removing the dust piece?

You don't. Or rather, I wouldn't if I were you.

Those monitors are sandwiched together with multiple layers of films and whatnot, all assembled in a clean-room at factory. Once you take it apart, static electricity will attract even more dust that's free floating in the air all around you. It'll be just a bigger mess in the end.

If you must, contact LG or the store where you bought it from and see if you can get a replacement.

 

[evanzhao5501]

So how would I go about removing the dust piece?

You don't. Or rather, I wouldn't if I were you.

Those monitors are sandwiched together with multiple layers of films and whatnot, all assembled in a clean-room at factory. Once you take it apart, static electricity will attract even more dust that's free floating in the air all around you. It'll be just a bigger mess in the end.

If you must, contact LG or the store where you bought it from and see if you can get a replacement.

Thanks for the help. It sucks because I bought this monitor literally 2 months ago as a replacement when my laptop monitor crapped out on me. I opted out to contacting LG via email and I'll see how it goes from there. Cheers!