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Discussion Starter · #1 ·
First a little backstory: LCD Vizio 46 inch. I have always faintly seen banding during dull or night scenes, even more recently and more prominent with my newly aquired Batman Begins bluray....


here are a few pictures, the issues on the right, camera really didn't catch them strongly

http://s51.photobucket.com/albums/f3...t=2e564850.jpg

http://s51.photobucket.com/albums/f3...t=147a98ca.jpg


at a distance, the lines are more visible.


I haven't seen it much on tv since I generally watch shows that film on sets so even at night, they have good lighting...


It took that Batman Begins master thread for me to actually look into this.


It looks like vertical banding.


My service plan runs out next May so I scheduled someone to look at the tv this Friday. Should I live with it or have the tech come out and pop the blu in and see if they can fix it?
 

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The lines you see (me too now that you re-posted the links…) when the stationary picture is displayed may not be the banding... but combination of backlight source (in particular if the source is edge lit LED), diffuser and BEF’s. With edge lit light source, BEF’s have to be of perfect “construction” AND they have to be assembled correctly to be able to refract within, and “shoot” through the LCD panel the photons at exact place across the whole screen – NOT an easy task…. I am not sure if your TV is edge lit…


Banding is clearly visible if you watch golf, for example, and the camera follows the golf ball with a slow, constant-speed horizontal panning-like movement...


The only option to fix the banding is to completely disassemble the TV and replace the LCD panel… task I would entrust only to handful of capable and sensible technicians that are knowledgeable enough in LCD TV principles of operation, and can actually use their brain… most are trained to replace one module at the time until the problems disappear, and are clueless when it comes to correct diffuser / BEF’s / LCD panel assembly.


In other words, my suggestion to you is to learn to live with that (minor?) flaw… replacing the LCD panel is not an automatic guarantee the banding will disappear + you’ll be getting second-hand LCD panel most likely.


Boky
 

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Discussion Starter · #5 ·
so what u are saying is play with the settings to see if I can get rid or lower it and live with it? At what point until next May, do I say I need to have it professionally looked at?
 

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Quote:
Originally Posted by bsbfan /forum/post/20857908


so what u are saying is play with the settings to see if I can get rid or lower it and live with it?

You can't lover it.... "The only option to fix the banding is to completely disassemble the TV and replace the LCD panel task I would entrust only to handful of capable and sensible technicians that are knowledgeable enough in LCD TV principles of operation, and can actually use their brain most are trained to replace one module at the time until the problems disappear, and are clueless when it comes to correct diffuser / BEF's / LCD panel assembly."

Quote:
Originally Posted by bsbfan /forum/post/20857908


At what point until next May, do I say I need to have it professionally looked at?

" replacing the LCD panel is not an automatic guarantee the banding will disappear + you'll be getting second-hand LCD panel most likely."


I suppose there's no harm in getting someone to look at the banding... Banding can be affected and it can get worse if the T-CON board runs hot, I suppose any time during the summer would be okay (this is not a joke even though that it sound like 1)


Boky
 

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Discussion Starter · #8 ·
I think I might have jumped the shark here. I was playing around with my television settings and I determined through lowering the brightness, I was able to achieve earthy, inky blacks (and the one thing I hate is crappy blacks on blurays or even on television)

Now I am no professional at television settings, far from it, but I made the Batman Begins bluray look considerably better.

Below are 2 pictures: I want you to tell me which one looks to be the proper settings. The first image is what I have been watching everything on. (blacklight-90, brightness-50) and the second is with a slight tweek to the brightness taking it down a mere 5 notches to 45.
http://i51.photobucket.com/albums/f3...n/15019918.jpg
http://i51.photobucket.com/albums/f3...n/9d4fe1a9.jpg


To me, the 2nd image looks to be what this movie intended to look like, and if I have been watching television with the brightness to high, then I am completely ignorant to HD television.

Below are more images from 2 scenes from the bluray: I will notate which one was on which setting.
http://i51.photobucket.com/albums/f3...n/97d05f0a.jpg (Brightness-50)
http://i51.photobucket.com/albums/f3...n/73ec0d0d.jpg (Brightness-45)

http://i51.photobucket.com/albums/f3...n/c7aca620.jpg (Brightness-50)
http://i51.photobucket.com/albums/f3...n/e370965b.jpg (Brightness-45)

I believe this proves that I do not have a banding issue with my set, that having the brightness setting too high only outlined and exaggerated the few flaws in said bluray, your thoughts?
 

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There’s nothing wrong with the bluray disk....


Going back to my original post:


"The lines you see (me too now that you re-posted the links…) when the stationary picture is displayed may not be the banding... but combination of backlight source (in particular if the source is edge lit LED), diffuser and BEF’s."


Boky
 
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