Originally Posted by improwise
One thing I dont really get is ABL, is its purpose to protect the panel or the pixels? Reason for asking is that if I have 50% white and 50% black side by side, I won't get ABL, but if I put up 100% white I will. Now, if the purpose was to prevent burn in and preserve the pixels, wouldn't the 50% pixels be just as affected regardless of if the other 50% is black? Or it some kind of overheating protection for the whole panel?
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I've been asking myself the same question since last year when I learned about ABL. Doesn't make sense at all. ALB is in fact meant to protect the panel from burn in, but your scenario serves as a counterargument for its purpose.
Originally Posted by gunner842
So ASBL is still an issue on the CX, was hoping it wouldn’t be the case after getting long dark scenes dim After a while on my B6.
Just tried Unforgiven uhd and that bar scene at night dims so that the scene is barely visible. I know this scene is particularly long so I can’t see it happening often with content, but how have LG not fixed ASBL being so aggressive!
I have not watched Unforgiven, so I apologize if the scene is noticeably different that what I am picturing. In dark, mostly-static scenes, the problem is that the TV thinks that the video is paused, and it therefore lowers the brightness substantially to protect itself from burn-in. This dimness is exacerbated/ameliorated by the use of the Logo Luminance Adjustment (since the TV can recognize the static brighter zones in an otherwise very dark image, as logos), or the use of the Vivid setting, which barely features ABL in this year's model (but I know people hate using any of these).
I agree with you about the aggressiveness of ABL, and I realize the following suggestion is far from ideal, but like you also mentioned, these types of scenes are uncommon. Grabbing the controller to show the pointer, or pausing for a second to bring up some kind of time stamp, or changing the volume (anything that will change the image, even for an instant) will bring back the "default" brightness to the image (until it kicks in again). Like I said, less than ideal, but better than not being able to see anything on screen.
LG should give us some control over ABL. But ABL is LG protecting themselves from burn-in, so we'll probably never get that kind of control. :/