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LGE OLED TVs Impacted by Luminance Overshoot
LG’s new ‘OLED evo’ high brightness sets are expected to reach peaks of somewhere around 1000 nits (versus around 800 on 2020 models). This will appear in LG’s 2021 G1 series, which will also continue to offer a slimmer ‘gallery’ design option to the more ‘mainstream’ new C1 series. But the high brightness models won’t mitigate the latest problem, which according to Forbes, have some owners of OLED TVs claiming parts of very dark images containing subtle shadow detailing can seem to ‘pulse’ at times, as the TV seems unable to settle on a stable brightness level for such near-black image content. Since such issues are always easier to simply show than describe, here are a few good video examples of the phenomenon occurring in a post by AVSforum user That Guy Logan.
As ever with issues like this - especially when they’re relatively subtle, and so aren’t instantly picked up on by every LG X series OLED user - trying to pin down how widespread the overshoot problem is, in terms both of the range of screens and types of content affects, isn’t easy. The combined efforts of various forum members, though, suggest that it affects most if not all X Series OLEDs, but that the aggressiveness of the problem possibly varies from panel to panel. The overshoot can occur regardless of the picture mode or input and cannot easily be calibrated away without completely messing up the picture. Some sufferers report that they have to turn their OLED TV’s brightness setting to more than 60 before the overshoot issue disappears - at which point the pictures will look completely off in terms of both black levels and color.
The luminance overshoot seems equally as likely to occur with SDR content as HDR and is seemingly particularly problematic with gaming sources. The problem pre-existed recent update 03.21.16, and seems to be triggered whenever a white subpixel ignites above RGB 10 10 10 levels of luminance.
LG responded with the following response: "We are aiming to have an update to improve the situation for 2020 TVs within a few months”.
LG’s new ‘OLED evo’ high brightness sets are expected to reach peaks of somewhere around 1000 nits (versus around 800 on 2020 models). This will appear in LG’s 2021 G1 series, which will also continue to offer a slimmer ‘gallery’ design option to the more ‘mainstream’ new C1 series. But the high brightness models won’t mitigate the latest problem, which according to Forbes, have some owners of OLED TVs claiming parts of very dark images containing subtle shadow detailing can seem to ‘pulse’ at times, as the TV seems unable to settle on a stable brightness level for such near-black image content. Since such issues are always easier to simply show than describe, here are a few good video examples of the phenomenon occurring in a post by AVSforum user That Guy Logan.
As ever with issues like this - especially when they’re relatively subtle, and so aren’t instantly picked up on by every LG X series OLED user - trying to pin down how widespread the overshoot problem is, in terms both of the range of screens and types of content affects, isn’t easy. The combined efforts of various forum members, though, suggest that it affects most if not all X Series OLEDs, but that the aggressiveness of the problem possibly varies from panel to panel. The overshoot can occur regardless of the picture mode or input and cannot easily be calibrated away without completely messing up the picture. Some sufferers report that they have to turn their OLED TV’s brightness setting to more than 60 before the overshoot issue disappears - at which point the pictures will look completely off in terms of both black levels and color.
The luminance overshoot seems equally as likely to occur with SDR content as HDR and is seemingly particularly problematic with gaming sources. The problem pre-existed recent update 03.21.16, and seems to be triggered whenever a white subpixel ignites above RGB 10 10 10 levels of luminance.
LG responded with the following response: "We are aiming to have an update to improve the situation for 2020 TVs within a few months”.
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