Some Samsung Galaxy S20 Ultra units plagued by a green screen tint

15 April 2020
It appears to be a software bug, introduced with the latest OTA and related to certain apps, refresh rate and brightness settings.

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  • AnonD-754814
  • uNV
  • 18 Apr 2020

Anonymous, 18 Apr 2020I'm the other dude, not the one you were debating the thing... moreWell I don't care about the high refresh rate either. There're other things which are related to refresh rate. If those aren't right refresh rate isn't gonna help much.
And Why are you bringing Tvs here ?
I didn't say anything about Tv.
I didn't have many complains about Sony displays. I just don't like it when Sony fans make their display superior to others.
Even with the same brand made panel different brand's smartphone might have different looking display. It's what these brand choose to have.

About the PPI.
Research suggested that any display having over 300 PPI has unnoticeable pixel for a 20/20 vision people.
So anything over 450 PPI which is 50% more than the minimum requirement is surely unnoticeable.
So, our claim to see any difference between a 550+ PPI vs 650PPI is unrealistic.
I'll pass on this claim anytime.

It's pretty interesting that you're very much interested in replying on behalf of others. The reply you published was related to some of my comments to other users.
Who're you exactly !

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    • Anonymous
    • LHe
    • 18 Apr 2020

    AnonD-754814, 18 Apr 2020Seriously you're doing it ? I know extra brightness cost ... moreI'm the other dude, not the one you were debating the thing :) I couldn't care less about high refresh rate screens cause I don't game nor I care about them on mobile device just because Android cannot do steady 60fps because it's ancient in foundation code and can't precache screen interaction like every other living or defunct mobile OS can or could (Meego, BB10, WP)

    First of all you can't generalize OLED vs LCD cause there are many implementations of each. OLED on mobile has really very little to do with TV panels. For example this is how resolution matters on pentile OLED compared to wrgb OLED. Pentile OLED has lot's of gap like Swiss cheese between subpixels so higher resolution is even more important or Pentile OLED than LCD. Even though there is only 700 pixels more on Xperia 1 than on S20+ difference is visible with the eye, even more so visible on big screens such as S20 Ultra and it's clear as night and a day when you are running those QHD devices in FHD in order to achieve higher refresh rate.

    HDR brightness - yes Xperia 1 is dimmer and that's design decision to keep gamma tracking properly to ensure color accuracy and of course save that miserably small battery. Yes, HDR highlights don't pop like they do on Note 10 but to say Xperia 1 doesn't meet HDR requirements is silly. What requirements? Vesa requirements like 400, 500, etc? Xperia 1 manual brightness is right there in the line with the previous year flagships, where others excel is in auto brightness (Xperia 1 600 compared to S20 800). Other than that Xperia 1 is completely evenly lit from edge to edge, it does not suffer from violent PWMs at low brightness like Samsung does and while like any pentile OLED it cannot produce whitest white, temperature shift of white when you tilt device is a lot more better than on S10/Note10

      • ?
      • Anonymous
      • uH}
      • 18 Apr 2020

      Shanti Dope, 16 Apr 2020https://www.androidauthority.com/sony-xperia-120-hz-display... moreJust stop yapping about that locked 120Hz mode that no one can use.

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        • AnonD-754814
        • 6p}
        • 18 Apr 2020

        Smithravi, 18 Apr 20201. You did say higher refresh rates increase colour accurac... moreAre you saying UHD is a must for showing BT.2020 ?
        Who told you that ?

        Anyway let's agree with you that.
        Now tell me How is Xperia 1's and 1(II)'s display is BT.2020 as the display is not UHD on either smartphone ? It's actually QHD+.
        I'm waiting here to know what you've got to say.

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          • AnonD-754814
          • 6p}
          • 18 Apr 2020

          Smithravi, 18 Apr 20201. You did say higher refresh rates increase colour accurac... moreJust don't shout much about the HDR of SONY xperia 1.
          The more important thing is the brightness for HDR.
          Sony Xperia 1 fails to cover even the minimum brightness needed for showing HDR content on every corner. It has average brightness of just 542(only 2 more) nits.

          And what did we know Sony for ?
          Great camera.
          Sony Xperia 1 can't even compete with older flagship.

          Why don't you read the Xperia 1's review by notebookcheck ? They're also one of the most non-biased reviewer you'll find online.

          Anyway I don't understand why GSMARENA added "Triluminos Display' to Xperia 1's specification as Xperia 1 has OLED display.
          Any info on that ?

            Smithravi, 18 Apr 20201. You did say higher refresh rates increase colour accurac... more1. If you're referring to what I said in my original comment:
            "hardware-accelerated frame interpolation in supported apps and easily one of the best colour calibration among any phone displays"
            Those two statements were not connected to each other, I just used the conjunction "and" because I was listing out the main features of Find X2 Pro's display and they were the last two in the list. You're welcome.

            2. As already I said, is that a noticeable difference from a normal viewing distance?

            3. "Isn't Xperia an entertainment device"
            I thought recent Xperia flagships have been aiming at a niche market of professionals.
            "You should ask samsung why they produce for sony and not for themsleves"
            Huh? Isn't LG producing the displays for Xperia 1/1 Mk. II?

            4. You can't tell anything about the colour accuracy from the Youtube video comparison. Go to XDA or Anandtech for objective, in-depth analysis and you'll see what I mean. And in case you forgot we're comparing Xperia 1's 4K panel to Find X2 Pro/OnePlus 8 Pro's display, not OnePlus 7 Pro's.

            Samsung has always been sticking to accurate colours in "natural" mode and they are doing great this year as well in this regard. Your claim that "Samsung produces over saturated colours" is objectively wrong when you can easily switch the display mode through the settings app.

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              • AnonD-754814
              • 6p}
              • 18 Apr 2020

              Smithravi, 18 Apr 2020"Nobody cares about the technical specifications, if they a... moreSorry, I had to interfere.
              Can you please explain your last line ?
              What is QHD and 4K difference in a small display ?

              Also I agree that big non-chinese company Like Sony, Samsung(until the new mobile head division came in 2019) etc.

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                • AnonD-754814
                • 6p}
                • 18 Apr 2020

                Anonymous, 17 Apr 2020Because playing with brightness on OLED slides the gamma va... moreSeriously you're doing it ?
                I know extra brightness cost color accuracy. I had hundreds of lines of debate with a guy about this. I know this. But I don't understand why do you keep bringing brightness here ?

                Our debate was on Refresh rate vs color accuracy, not brightness vs color accuracy. Now where did the brightness come from ?
                Even I didn't deny refresh rate doesn't cost color accuracy. I sad "Display do suffer color accuracy at high refresh rate. But color accuracy in LCD tends to suffer more than the OLED in high refresh rate. Also OLED can't reach that much high refresh rate as LCD yet.

                I never talked about the brightness.
                Now as you brought brightness into the debate.
                Brightness cost color accuracy, there is no doubt in it. But still LCD suffers more than OLED display for this and OLED can't reach as high brightness as LCD/LED can reach.

                  Nick Tagataka, 17 Apr 2020"had 120Hz displays, but were disabled" And there's no way... more"Nobody cares about the technical specifications, if they are not reflected in the user experience then they won't count." True. Sony realized and locked 120Hz intentionally to save battery. They know that it is not worth bigger battery and larger space (Xperia 1 II is and will be the slimmest and lightest flagship of 2020). Hey at least they are giving us motion blur reduction (90Hz equivalant) and 120Hz touch display (as always). Sony has in the past never advertised falsely. I pretty much take it as granted.

                  8+2 bit or 10 bit doesn't matter until they can produce and cover the colour gamout :). I'm pretty sure only Xperias can cover most of these colour maps. Even assuming both are same panels, same sofwtare and same comoany. 10 bit on QHD is still mediocre compared to 4K :)

                    Nick Tagataka, 17 Apr 20201. When did I say those factors are related to each other? ... more1. You did say higher refresh rates increase colour accuracy which is misleading information. On the contrary, there are forums which say colour accuracy degrades with higher refresh rates.
                    2. 3.2k and 3.8k is only in horizontal :) You should also consider the vertical progressive pixels, then look at the number of pixels you get. And Yeah also PPI. Xperia 1/1 II has over 630 ppi with 4K (remember both S20 Ultra and Xperia 1 II has same display size. TBH Xperia 1 II has less display size but more pixels and ppi). This produces the sharpest display any mobile can produce right now. There's no match. So don't you even compare the display sharpness with others.
                    3. Isn't Xperia an entertainment device ?? 21:9 aspect is for watching movies. Also to cover BT2020, display needs to be 4K anyway :). And again, Xperia 1/ 1 II dsiplays cover most of sRGB colours compared to other flagships including SAMSUNG itself :). You should ask samsung why they produce for sony and not for themsleves. May be cost?? They don't want to sell their mobiles at 1700$. So they take compromise :) Makes more sense. King of display colours also goes to SONY. Yet people whine over the price of Xperia 1 II. It is still 300$ (and more in eruope) cheaper than S20 Ultra.
                    4.Yes I'm seriously telling you to watch real life comparison videos. Not just paid reviewers/fan boys. I watched myself some videos by common people. OP7 Pro has lame colours. Inaccurate colour accuracy. Just go and watch.
                    5. You can't use the peak brightness 800 nits in normal conditions. As I said, as long as you're able to see the screen is fine. I'm not going to watch movies under the sun :). 400-500nits is sufficient for me.

                    I still quote " Samsung produces over saturated colours". Because if you know how a mobile works, you will know that OLED display on all mobiles (even of same resolution) are not the same. They will have their own softwares and tweaks to get maximum out of displays :). Have you heard BRAVIA, Triluminous display from Sony??? They are not developed by samsung or LG. Likewise, you don't see same display performance from different companies. Even though their display panels are made by single company.

                      Hudinited, 17 Apr 2020Nino nino i miss you on the forum 😂I don't know how to find it;)

                        Shanti Dope, 16 Apr 2020https://www.androidauthority.com/sony-xperia-120-hz-display... more"had 120Hz displays, but were disabled"
                        And there's no way to ramp up the refresh rate manually, so it's essentially the same as 60Hz panel. Let's say there's a phone that comes with octa-core CPU but only use 4 of them all the time to prevent overheating. Or with 6000mAh battery but only charges 3000mAh of it for some unknown reason. Do you think it's reasonable to brag about how the phone comes with octa-core CPU or 6000mAh battery? Nobody cares about the technical specifications, if they are not reflected in the user experience then they won't count.

                        "according to Flashing Droid"
                        A more reliable source, please. I found no official documentation or description about that supposed 120Hz mode, nor any videos that actually show Xperia 1 uses 120Hz refresh rate using the game enhancement feature (e.g. FPS counter shown during the gameplay). One guy saying that it *looks* smoother doesn't really prove anything. As for the motion blur reduction feature, it's something I'll believe when reviewers' and my own eyes see it. Since they didn't advertise it as a 90Hz panel, it would be interesting to see if it's actually just a Sony's marketing term for higher refresh rate or something that works within 60Hz restriction.

                        "most modern flagship phones with OLED screens are more than capable of reaching that luminance"
                        Well, not at 100% APL. Modern phone displays that have around 600 nits of peak brightness offer good visibility under daylight, but sometimes they still look to reflective and washed out. Being brighter is helpful for rendering HDR contents more accurately as well, and that's why many major manufacturers like Apple, Samsung and Oppo are opting for 800+ nits displays this year. Though I'm pretty sure Sony is following the same path with Xperia 1 Mk.II as well.

                        "surely it is just another 8+2 software smoothing algorithm"
                        Were you complaining about it when Xperia 1 came out? I remember not.

                        "there are also some Snapdragon variants that are experiencing the same problem"
                        Most of the complaints came out after the update, but for this one I change my mind I'll hold off from making any decisive conclusion. It would be such a shame if it ended up being the actual hardware defect, honestly.

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                          • Anonymous
                          • LHe
                          • 17 Apr 2020

                          AnonD-754814, 16 Apr 2020Stay on one point. Refresh rate and Color accuracy on LCD v... moreBecause playing with brightness on OLED slides the gamma value. OLED might be bright as hell but it's really hard to make it work as intended on various brightness. Color reproduction suffers, it pulsates among other things. It's not impossible to make of course but it's a bad ROI to do it for the phone. In other words whenever you hear that some mobile pentile OLED display is the most color correct display ever or the best display ever you can be sure that it was measured on the brightness sweet spot.

                            Smithravi, 16 Apr 20201. 120 Hz has Nothing to do with displaying true Colours :)... more1. When did I say those factors are related to each other?
                            2. The sharpness difference between 3.2K and 3.8K resolution is rarely noticeable on sub-7 inch displays. Though I'm not saying it's non-existent, it's just really hard to see it unless you put both displays very close to your face and see them side by side.
                            3. I'll give you that, but there are very few mobile contents that support that colour gamut. IIRC some Netflix movies are using the BT.2020 colour space, but that's all I can think of as for now.
                            4. Are you seriously telling me to watch the comparison on YOUTUBE? How can you learn anything about display quality from there? And I'm talking about the latest generation display panel on OnePlus 8 Pro, not the older one on 7 Pro.
                            5. Probably it matters less during the lockdown lol, but many people do use their phones under direct sunlight. Higher peak brightness means it's more suitable for HDR video contents as well.

                            "Samsung produces oversaturated Colours"
                            First of all, it's a Samsung PANEL independently calibrated by OnePlus/Oppo. Second, most phones nowadays allow you to choose between natural and vivid colour calibrations. Don't like oversaturated colours? Just change the colour mode.

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                              • Hudinited
                              • g5Y
                              • 17 Apr 2020

                              nino77ns, 17 Apr 2020the same thing happened with the huawei mate20pro, i change... moreNino nino i miss you on the forum 😂

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                                • Hudinited
                                • g5Y
                                • 17 Apr 2020

                                Sponge, 16 Apr 2020Huawei's Green issues were badly produced LG panels, I've g... moreYeah, they make own panels with the same tech, and it happened, same badly produced stuff as LG does... But now at a higher price than ever, i think that it should be tested before it gets in stores.

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                                  • Hudinited
                                  • g5Y
                                  • 17 Apr 2020

                                  Anonymous, 16 Apr 2020I used mate 30 pro 5G and both curved side are totally green so.Discoloration is on all curved displays , depending on colour calibration it can be green, reddish, yellowish or bluish tint ... It happens when you look at the display from various angles, this is completely different story, i guess you didn't experienced it... It's because of glue not because of edges, and from day to day or a week, you will notice more and more greenish tint on low brightness in the dark environment ... It's not common and Samsung should learn the lesson based on the Huawei mate 20 pro's fault...

                                    the same thing happened with the huawei mate20pro, i changed the phone 3 times until i got a better screen which is not green, it is probably from overheating as well as a bad screen, only then they hid that the problem was made by others, they just changed phones until you get boe

                                      AnonD-754814, 16 Apr 2020Oh,, My bad. Sorry. Then why the other guy "IPSdisplay" ... moreI know their comments in here :)

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                                        • AnonD-754814
                                        • uNV
                                        • 16 Apr 2020

                                        IpsDisplay, 16 Apr 2020Because the brightness of a display changes the displays co... moreStay on one point. Refresh rate and Color accuracy on LCD vs OLED.

                                        Now why are you bringing brightness here ?

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