5 Bizarre Problems That Affect ONLY OLED TVs, & How to Fix Them

so you are watching a new netflix show in hdr10 or dolby vision on your oled tv and the picture looks okay certainly bright enough at the start but after a few minutes or so the picture has gradually become darker so much so that you are struggling to see any shadow detail it is not until you summon the user menu or information bar or when the movie cuts to a brighter scene that the picture brightness is restored even disabling energy saving or light sensor or ai brightness won't prevent this anomaly from happening again and again whenever there's a prolonged dark hdr scene because this type of auto dimming is unfortunately caused by a protective mechanism implemented on oled televisions to reduce the risk of permanent burn in it works based on apl or average picture level changes so even if the picture is moving on screen and not static as long as the apl doesn't change drastically the oled tv will slowly dim down the picture causing dark hdr scenes to look even darker the longer it drags on some of the more notorious hdr adobe vision titles that will trigger such an anomaly include numerous scenes in ozark on netflix this low light sequence from 1917 or dune part 1 which is again not the brightest of movies note that this undesirable auto dimming behavior usually happens in hdr or adobe vision mode instead of in sdr because the combination of maxed out oled light and peak brightness settings seems to make the dimming algorithm more aggressive to disable this type of auto dimming on certain tv brands unfortunately you will have to go into the service menu which carries the risk of one bricking your oled tv if you don't know what you're doing and two voiding your warranty if the tv manufacturer bothers to check the service law if you are still hell-bent on doing this at your own risk i've partly written some instructions in the youtube description below so you can still bail out at any time for lg oled televisions you will need to buy a service remote from amazon or ebay press the install button enter a four digit code then what you will need to do is to scroll to the oled sub menu and disable tpc which stands for temporal thick luminance control after which your lg oled won't auto dim unnecessarily in prolonged dark hdr scenes again while in lg's service menu some of you might want to turn off gsr too i will explain what this setting does later in this video on samsung oleds enter the service menu using the instructions i've put in the youtube description below go into the control submenu then scroll down towards the bottom and click on qd option scroll down and click on screen saver brightness then you will need to reduce the default value of 7 all the way down to 0 by clicking the left button on your remote control 7 times again i need to stress that most tvs keep a lot of the service menu being accessed so even though tv technicians mostly don't bother checking the service log on the off chance that they do be prepared to get told that your warranty has been avoided which is why i think oled panel suppliers and tv manufacturers should come up with a less intrusive algorithm which prevents this apl-based auto-dimming from happening when the maximum brightness in the scene is detected by the television to be under a certain threshold say 100 nits since such low brightness levels will not increase the risk of image retention and permanent burn-in anyway this brings me to anomaly number two where you are playing an hdr game on your oled tv and after some time the picture gradually becomes darker therefore reducing the hdr impact and making your gameplay less enjoyable this is another form of protective auto dimming algorithm based upon static logo detection so your oled television is treating the hurt or heads-up display in games as static logos and dimming down not only the heart but also the entire picture some oled manufacturers let you turn off logo detection dimming while others like sony don't even provide the option in the user menu on lg oled televisions turning off the adjust logo brightness setting in the regular user menu will stop the static elements from being deemed in a localized manner but there's another setting buried in the service menu which dims down the entire picture however slightly due to the presence of static elements on screen especially in hdr or high dynamic range this under the hood logo detection deeming algorithm is called gsr or global sticky reduction no not a tagline for nofap but an actual term you can find in the user manual for an lg professional oled display to disable gsr on an lg oled you will need to go into the service menu and turn off the gsr enable setting under the oled submenu let's talk about the next anomaly on some oled televisions you may see a glowing brighter contour along moving faces in dark scenes for example in this slow dancing sequence from wonder woman or along the hairline and shadows on amy adam's face as she walked inside the room in the 4k blu-ray of arrival this is caused by a phenomenon called neo-black chrominos overshoot on wrgb oled televisions where when a dark tone switches to a slightly brighter one the luminance would go above the target before being restored to the correct value resulting in the glowing contours along dark ages in motion or flashing artifacts in bit staffed material such as this heavily compressed scene from game of thrones unfortunately this anomaly seems to be endemic among wrgb oled panels since 2018 so there's not much you can do about it without also affecting the picture quality however due to efforts by certain manufacturers some wrgb oled tvs are better at mitigating this issue such as lg oleds particularly 2022 models panasonic oleds and to a lesser extent sony oleds from 2021 onwards of course qd oled such as the samsung s95b and the sony a95k don't suffer from near black romance overshoot thanks to the absence of white sub pixels so you can choose to buy one of these qdo leds to avoid this issue altogether now regardless of whether you have a qd oled or a wrgb oled occasionally you may see one side of the bezel being wider than the other side but before i explain how to fix this anomaly i would like to thank surfsharkvpn for sponsoring this video since the pandemic started some streaming providers including netflix have throttled the bitrate of certain shows especially in europe resulting in a softer picture with more compression artifacts this is where a vpn comes in surfshark allows you to stream content from another country without needing you to be physically there so you can watch netflix at higher bit rates with better picture quality you can also get more content that's not available in your region perhaps the u.s netflix library which contains more movie titles for less than the price of a big mac per month you can use surfshark on as many devices as you want in your household all at the same time there's 24 7 live customer support a 30 day money back guarantee and if you use promo code hdtv test you will get 83 off as well as three extra months free with free antivirus subscription shown in so sign up today and give subshot a try i'll put the link in the youtube description below thanks again for your support ok the anomaly of one side of your bezel on your oled tv looking wider than the other is caused by pixel shifting which is another protective mechanism to combat image retention and permanent screen burn so to make your tv bezel with equal again you just need to go into the user menu of your oled television and turn off pixel shifting which may be given different names by various oled manufacturers if you don't notice unequal bezel width on your oled tv or it doesn't bother you that much then i would just leave pixel shifting on to dampen the risk of image retention and burn in however slide on to anomaly number five if you are coming from an led lcd or even plasma television slow panning shots on an oled tv may look more stuttery as if the picture on screen is strobing or vibrating ever so slightly this is caused by oled's super fast pixel response time it's near instantaneous for an oled pixel to switch to another color compared to led lcd televisions whose pixels take longer to change from one color to another while oled's new instantaneous pixel response time results in less motion blurring and smearing artifacts than led lcd unfortunately it also makes the mouse starter inherent in 24 frames per second movies more obvious causing slow panning shots to appear more jarring to those who are not used to oled motion fortunately oled manufacturers have recognized this as a problem and developed various frame interpolation techniques to improve the smoothness of slow panning shots on oled tvs without introducing too much so opera effect or soe let me show you how to achieve this on some of the more popular oled brands i have in my test room in alphabetical order lg go into the picture menu then into the clarity sub menu scroll down and click on true motion then select cinematic movement next panasonic simply set intelligent frame creation to min to smooth out the mile 24p stutter on philips oled tvs set motion styles to movie which will apply a small dose of motion interpolation to reduce the inherent 24p stutter on samsung oleds go into the picture menu then click on expert settings scroll down and click on picture clarity change picture clarity to custom then set java reduction to either one or two to smooth out the 24p stutter on sony oleds go into the picture menu then scroll down and make sure motion flow is set to custom after that set the smoothness control to 1 to apply a small dose of interpolation to minimize the oled stutter to clarify i myself don't use any of these motion interpolation settings when watching 24p movies because to my purist eyes even the best film smoothing algorithm would still introduce some opera effect or soe however mild especially during fast moving sequences that's said i won't hold it against you if you use this film smoothing settings to reduce oled's stroboscopic effect when displaying low frame rate content such as 24 fps movies talking about tv settings there's actually one sneaky setting buried in the user menu that actually worsens the picture quality on your oled tv to find out what the setting is and how to disable it please watch my instruction video by clicking here you

Channel: HDTVTest

Views: 723,093

Keywords:

Id: E5qXj-vpX5Q

Length: 11min 29sec (689 seconds)

Published: Thu Jun 30 2022