LG Plasma Contrast issue - AVS Forum
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Old 06-20-2012, 08:26 PM - Thread Starter
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Hi,

I`m having a question regarding the contrast on a Plasma LG. The difficulty i find is that this plasma changes the Contrast depending on the amount of white displaying in the picture.
When the white cover a lot of the display screen, it dims the white, when is a small amount it doesn`t. I think this is a "feature" to prevent the Burn in.
It work similar to a dynamic contrast but it`s very smoothly that you don`t perceive in normal viewing.
My question is how do i setup contrast on this kind of display?
I can`t disable on regular Menu options. It may have an option in the service mode but i don`t know how to access and since i`m not a technician i prefer to leave the SM alone.
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Old 06-20-2012, 09:59 PM
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Quote:
Originally Posted by booker21 View Post

Hi,
I`m having a question regarding the contrast on a Plasma LG. The difficulty i find is that this plasma changes the Contrast depending on the amount of white displaying in the picture.
When the white cover a lot of the display screen, it dims the white, when is a small amount it doesn`t. I think this is a "feature" to prevent the Burn in.
It work similar to a dynamic contrast but it`s very smoothly that you don`t perceive in normal viewing.
My question is how do i setup contrast on this kind of display?
I can`t disable on regular Menu options. It may have an option in the service mode but i don`t know how to access and since i`m not a technician i prefer to leave the SM alone.

that's not really a feature and as such, it cannot be disabled

it's called ABL and is part of the plasma technology and it's inherent limitations
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Old 06-21-2012, 07:31 AM - Thread Starter
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Oh i didn´t know that. I thought it was only on Lg Plasmas.

So, contrast in withes will be different depending the scene?
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Old 06-21-2012, 10:24 AM
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Originally Posted by booker21 View Post

Oh i didn´t know that. I thought it was only on Lg Plasmas.
So, contrast in withes will be different depending the scene?

depends on the APL (average picture level) of the scene... the higher the APL, the dimmer the image gets, the lower the APL the brighter the image gets

and ABL stands for automatic brightness limiter (or something like that)
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