Weird Pixelation on Letterboxed Movies - LGOLEDB655 - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 10 Old 05-30-2017, 12:40 PM - Thread Starter
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Weird Pixelation on Letterboxed Movies - LGOLEDB655

I recently discovered pixelation on the upper left-hand corner of my screen. So far, I've only noticed it when watching movies with letterboxing, and mostly on Showtime.

Is anyone familiar with this issue and how to resolve it?

I contacted LG support who told me to call a local service tech to assess it further. I'm reluctant to engage a tech if it's something I can fix myself. I suppose they want to verify if the TV is damaged, which it is not. I bought it a few weeks ago.

I appreciate your help.
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post #2 of 10 Old 05-30-2017, 12:44 PM
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Originally Posted by Esilbe1 View Post
I recently discovered pixelation on the upper left-hand corner of my screen. So far, I've only noticed it when watching movies with letterboxing, and mostly on Showtime.

Is anyone familiar with this issue and how to resolve it?

I contacted LG support who told me to call a local service tech to assess it further. I'm reluctant to engage a tech if it's something I can fix myself. I suppose they want to verify if the TV is damaged, which it is not. I bought it a few weeks ago.

I appreciate your help.
Try turning off Pixel shift on the tv. Does it do that when watching blu ray movies that have letterbox bars? If it's only occurs through your cable box or while watching Showtime, it's either the cable box or Showtime.

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post #3 of 10 Old 05-30-2017, 01:49 PM
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Quote:
Originally Posted by Esilbe1 View Post
I recently discovered pixelation on the upper left-hand corner of my screen. So far, I've only noticed it when watching movies with letterboxing, and mostly on Showtime.

Is anyone familiar with this issue and how to resolve it?

I contacted LG support who told me to call a local service tech to assess it further. I'm reluctant to engage a tech if it's something I can fix myself. I suppose they want to verify if the TV is damaged, which it is not. I bought it a few weeks ago.

I appreciate your help.
Try turning off Just Scan in the Aspect Ratio settings.

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post #4 of 10 Old 05-30-2017, 01:52 PM - Thread Starter
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Originally Posted by wxman View Post
Try turning off Pixel shift on the tv. Does it do that when watching blu ray movies that have letterbox bars? If it's only occurs through your cable box or while watching Showtime, it's either the cable box or Showtime.
Do you mean Screen Shift under OLED Panel Settings?

Other settings are:

Noise Reduction: Off
MPEG Noise REducation: Off
Real Cinema: On
Motion Ey Control Off
Tru Motion: Off

I turned that off to no avail.

Is it possible this is related to signal noise ratio -- too high or too low?
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post #5 of 10 Old 05-30-2017, 02:06 PM
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Originally Posted by Esilbe1 View Post
Do you mean Screen Shift under OLED Panel Settings?

Other settings are:

Noise Reduction: Off
MPEG Noise REducation: Off
Real Cinema: On
Motion Ey Control Off
Tru Motion: Off

I turned that off to no avail.

Is it possible this is related to signal noise ratio -- too high or too low?
I meant screen shift. Do you have just scan turned on?

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post #6 of 10 Old 05-30-2017, 02:21 PM - Thread Starter
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Originally Posted by wxman View Post
I meant screen shift. Do you have just scan turned on?
Turning off "Just Scan" did the trick!!!
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post #7 of 10 Old 05-30-2017, 02:23 PM
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Originally Posted by Esilbe1 View Post
Turning off "Just Scan" did the trick!!!
For blu ray movies, turn just scan back on.

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post #8 of 10 Old 05-30-2017, 02:53 PM
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Originally Posted by wxman View Post
For blu ray movies, turn just scan back on.
Interesting? So for cable / satellite you have just scan off and then for blu rays you turn it back on?

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post #9 of 10 Old 05-30-2017, 03:33 PM
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Interesting? So for cable / satellite you have just scan off and then for blu rays you turn it back on?
I have just scan turned on for everything. I have DirecTV, and have no issues. Just scan gives perfect 1:1 pixel mapping. With some cable tv boxes, it could be using some sort of overscan, which would show noise in the black bars if 1:1 pixel mapping is used. By turning off just scan, you actually add some slight zooming to the picture, which would get rid of that noise, but you lose some detail, thus the reason why you should use 1:1 pixel mapping (just scan) to see exactly what was meant to be seen.

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post #10 of 10 Old 05-30-2017, 03:47 PM
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Originally Posted by wxman View Post
I have just scan turned on for everything. I have DirecTV, and have no issues. Just scan gives perfect 1:1 pixel mapping. With some cable tv boxes, it could be using some sort of overscan, which would show noise in the black bars if 1:1 pixel mapping is used. By turning off just scan, you actually add some slight zooming to the picture, which would get rid of that noise, but you lose some detail, thus the reason why you should use 1:1 pixel mapping (just scan) to see exactly what was meant to be seen.
Understood. Thank you. I have DirecTv too so I'll set the same as you.

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