Is this a dead pixel on my new screen?












1















I have a dot on my screen that looks a bit like an anti-aliased circle. I took a picture of it:



enter image description here



To me it looks like it's not only one pixel that's dead, but a whole bunch
but they're also not completely black.



It's very noticeable on a white background (obviously) and it doesn't really change depending on the foreground. I tried running JScreenFix over it and it didn't help.



It's also visible when the screen is showing a white background due to "no signal".



I got the screen only yesterday (it's an LG 27UD58), should I take it back or is there a way to fix this myself?



Thanks for your help!










share|improve this question

























  • related but not an exact dupe - superuser.com/questions/889262/…

    – Tetsujin
    Jan 6 at 13:15






  • 1





    It looks more like an tiny LED backlight has died rather than an LCD pixel. either that or there is a bit of dirt/debris behind the LCD layer.

    – Mokubai
    Jan 6 at 13:19













  • tbh, without any other visual clues, it's hard to tell whether the dot is smooth or the picture is out of focus.

    – Tetsujin
    Jan 6 at 13:46






  • 1





    As it's a new display I would take it back and exchange it.

    – DavidPostill
    Jan 6 at 13:53
















1















I have a dot on my screen that looks a bit like an anti-aliased circle. I took a picture of it:



enter image description here



To me it looks like it's not only one pixel that's dead, but a whole bunch
but they're also not completely black.



It's very noticeable on a white background (obviously) and it doesn't really change depending on the foreground. I tried running JScreenFix over it and it didn't help.



It's also visible when the screen is showing a white background due to "no signal".



I got the screen only yesterday (it's an LG 27UD58), should I take it back or is there a way to fix this myself?



Thanks for your help!










share|improve this question

























  • related but not an exact dupe - superuser.com/questions/889262/…

    – Tetsujin
    Jan 6 at 13:15






  • 1





    It looks more like an tiny LED backlight has died rather than an LCD pixel. either that or there is a bit of dirt/debris behind the LCD layer.

    – Mokubai
    Jan 6 at 13:19













  • tbh, without any other visual clues, it's hard to tell whether the dot is smooth or the picture is out of focus.

    – Tetsujin
    Jan 6 at 13:46






  • 1





    As it's a new display I would take it back and exchange it.

    – DavidPostill
    Jan 6 at 13:53














1












1








1








I have a dot on my screen that looks a bit like an anti-aliased circle. I took a picture of it:



enter image description here



To me it looks like it's not only one pixel that's dead, but a whole bunch
but they're also not completely black.



It's very noticeable on a white background (obviously) and it doesn't really change depending on the foreground. I tried running JScreenFix over it and it didn't help.



It's also visible when the screen is showing a white background due to "no signal".



I got the screen only yesterday (it's an LG 27UD58), should I take it back or is there a way to fix this myself?



Thanks for your help!










share|improve this question
















I have a dot on my screen that looks a bit like an anti-aliased circle. I took a picture of it:



enter image description here



To me it looks like it's not only one pixel that's dead, but a whole bunch
but they're also not completely black.



It's very noticeable on a white background (obviously) and it doesn't really change depending on the foreground. I tried running JScreenFix over it and it didn't help.



It's also visible when the screen is showing a white background due to "no signal".



I got the screen only yesterday (it's an LG 27UD58), should I take it back or is there a way to fix this myself?



Thanks for your help!







display dead-pixel






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 6 at 14:06







Macks

















asked Jan 6 at 13:09









MacksMacks

1063




1063













  • related but not an exact dupe - superuser.com/questions/889262/…

    – Tetsujin
    Jan 6 at 13:15






  • 1





    It looks more like an tiny LED backlight has died rather than an LCD pixel. either that or there is a bit of dirt/debris behind the LCD layer.

    – Mokubai
    Jan 6 at 13:19













  • tbh, without any other visual clues, it's hard to tell whether the dot is smooth or the picture is out of focus.

    – Tetsujin
    Jan 6 at 13:46






  • 1





    As it's a new display I would take it back and exchange it.

    – DavidPostill
    Jan 6 at 13:53



















  • related but not an exact dupe - superuser.com/questions/889262/…

    – Tetsujin
    Jan 6 at 13:15






  • 1





    It looks more like an tiny LED backlight has died rather than an LCD pixel. either that or there is a bit of dirt/debris behind the LCD layer.

    – Mokubai
    Jan 6 at 13:19













  • tbh, without any other visual clues, it's hard to tell whether the dot is smooth or the picture is out of focus.

    – Tetsujin
    Jan 6 at 13:46






  • 1





    As it's a new display I would take it back and exchange it.

    – DavidPostill
    Jan 6 at 13:53

















related but not an exact dupe - superuser.com/questions/889262/…

– Tetsujin
Jan 6 at 13:15





related but not an exact dupe - superuser.com/questions/889262/…

– Tetsujin
Jan 6 at 13:15




1




1





It looks more like an tiny LED backlight has died rather than an LCD pixel. either that or there is a bit of dirt/debris behind the LCD layer.

– Mokubai
Jan 6 at 13:19







It looks more like an tiny LED backlight has died rather than an LCD pixel. either that or there is a bit of dirt/debris behind the LCD layer.

– Mokubai
Jan 6 at 13:19















tbh, without any other visual clues, it's hard to tell whether the dot is smooth or the picture is out of focus.

– Tetsujin
Jan 6 at 13:46





tbh, without any other visual clues, it's hard to tell whether the dot is smooth or the picture is out of focus.

– Tetsujin
Jan 6 at 13:46




1




1





As it's a new display I would take it back and exchange it.

– DavidPostill
Jan 6 at 13:53





As it's a new display I would take it back and exchange it.

– DavidPostill
Jan 6 at 13:53










1 Answer
1






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oldest

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3














This is dust between LCD screen and backlight plane.



The grid pattern shown in the picture actually shows the pixels, so the dark spot is much larger than a pixel. Also, pixels are squared, not round.



This also can't be a defect LED as stated in the comment, because the spot still is very small and has quite sharp borders. How many LEDs should the display have, and how to lit the display evenly, if a single LED would lit only such a small area with that borders?



My display is full of such spots. Some are circles, some look more like a small hair, or even a bunch of fibers. This is dust.






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    1 Answer
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    active

    oldest

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    active

    oldest

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    active

    oldest

    votes









    3














    This is dust between LCD screen and backlight plane.



    The grid pattern shown in the picture actually shows the pixels, so the dark spot is much larger than a pixel. Also, pixels are squared, not round.



    This also can't be a defect LED as stated in the comment, because the spot still is very small and has quite sharp borders. How many LEDs should the display have, and how to lit the display evenly, if a single LED would lit only such a small area with that borders?



    My display is full of such spots. Some are circles, some look more like a small hair, or even a bunch of fibers. This is dust.






    share|improve this answer




























      3














      This is dust between LCD screen and backlight plane.



      The grid pattern shown in the picture actually shows the pixels, so the dark spot is much larger than a pixel. Also, pixels are squared, not round.



      This also can't be a defect LED as stated in the comment, because the spot still is very small and has quite sharp borders. How many LEDs should the display have, and how to lit the display evenly, if a single LED would lit only such a small area with that borders?



      My display is full of such spots. Some are circles, some look more like a small hair, or even a bunch of fibers. This is dust.






      share|improve this answer


























        3












        3








        3







        This is dust between LCD screen and backlight plane.



        The grid pattern shown in the picture actually shows the pixels, so the dark spot is much larger than a pixel. Also, pixels are squared, not round.



        This also can't be a defect LED as stated in the comment, because the spot still is very small and has quite sharp borders. How many LEDs should the display have, and how to lit the display evenly, if a single LED would lit only such a small area with that borders?



        My display is full of such spots. Some are circles, some look more like a small hair, or even a bunch of fibers. This is dust.






        share|improve this answer













        This is dust between LCD screen and backlight plane.



        The grid pattern shown in the picture actually shows the pixels, so the dark spot is much larger than a pixel. Also, pixels are squared, not round.



        This also can't be a defect LED as stated in the comment, because the spot still is very small and has quite sharp borders. How many LEDs should the display have, and how to lit the display evenly, if a single LED would lit only such a small area with that borders?



        My display is full of such spots. Some are circles, some look more like a small hair, or even a bunch of fibers. This is dust.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 6 at 14:33









        swebersweber

        1893




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