Black Crush - Xiaomi Mi 8 Questions & Answers

does anyone experienced black crush in low brightness?

Yes

krepsz said:
Yes
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whole display? or just in some part of the screen?

engr.chachi said:
does anyone experienced black crush in low brightness?
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This is a result of the AMOLED screen. All AMOLED screens will exhibit this.

SENSEI888 said:
This is a result of the AMOLED screen. All AMOLED screens will exhibit this.
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all? i had samsung galaxy j5 back then, but never experienced black crush on low brightness.

engr.chachi said:
all? i had samsung galaxy j5 back then, but never experienced black crush on low brightness.
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Samsung decreases contrast a lot when you put the device on low brightness to counteract it. So it *technically* still does it but their software prevents it from being very noticeable.

nukeclears said:
Samsung decreases contrast a lot when you put the device on low brightness to counteract it. So it *technically* still does it but their software prevents it from being very noticeable.
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but mi 8 is using samsung's amoled.

engr.chachi said:
but mi 8 is using samsung's amoled.
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The contrast adjustment is a software thing, not part of the display.

nukeclears said:
The contrast adjustment is a software thing, not part of the display.
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so. is there a way to reduce contrast in miui 10?

Related

[Request]how to regulate white and black

Hi, I read about an application or a .zip to change black and white on XZ, where can I find?
EmeraldTimer said:
Hi, I read about an application or a .zip to change black and white on XZ, where can I find?
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Are you talking about a screen calibration app?
If so, see this thread
White Balance APK
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alnikki25k said:
Are you talking about a screen calibration app?
If so, see this thread
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Thanks! is usefull?
EmeraldTimer said:
Thanks! is usefull?
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Yes it is! My screen's white doesn't turn a bit yellow anymore
EmeraldTimer said:
Thanks! is usefull?
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It is useful for color calibration, but not for the contrast. So the blacks will stay the same. The whites on the other hand, can be changed.
exmatproton said:
It is useful for color calibration, but not for the contrast. So the blacks will stay the same. The whites on the other hand, can be changed.
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So, is there an application to make the black more black than black?
EmeraldTimer said:
So, is there an application to make the black more black than black?
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No. The screen is a TFT LCD. The light blacks are caused by the leakage of the light behind the crystals. So there is no way to get darker blacks. That's why Amoled screens have the dark blacks. It's all about technique
exmatproton said:
No. The screen is a TFT LCD. The light blacks are caused by the leakage of the light behind the crystals. So there is no way to get darker blacks. That's why Amoled screens have the dark blacks. It's all about technique
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uhm thanks you ^^
exmatproton said:
No. The screen is a TFT LCD. The light blacks are caused by the leakage of the light behind the crystals. So there is no way to get darker blacks. That's why Amoled screens have the dark blacks. It's all about technique
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The only thing you can do is to set a lower backlight level. In my impression the auto settings for backlight is not working to good, especially in low ambient light conditions. Install a third party backlight controller, like Lux Pro from the market. Then you can fin tune your backlight settings for all lighting conditions.
Black will then become more "black" due to lower backlight level in most conditions.

Clarity/resolution

The LG V20 has a crazy crisp display. Just kidding, this is automated text so who knows if this screen is any good. So, you be the judge! A higher rating indicates that it's extremely sharp and clear, and that you cannot see pixels with your naked eye.
Then, drop a comment if you have anything to add!
i hate the image retention, my sony z3c, samsung note 4/edge not having the same issue.
Ghosting
?
It's past 1 year mark.
The screen ghosting issue is so prominent that it's annoying.
This is well known in the.forum's but it's not something that lg is talking about.
I'm going to have to find out if there is a recall or can get this fixed.
Truly disappointed.
https://forum.xda-developers.com/v20/how-to/lg-v20-screen-burn-fixed-t3661631
Tl;dr:
Rooted: KCAL
Unrooted: SFilter/Night Screen in Google Play Store
I think Lg v20 display has a Good Pixel per inch ratio so that We can't see any dot with naked eye but thw color production is Soo Bad .....
I mean if we compare with Samsun display... They Are far better then This
maxi65 said:
I think Lg v20 display has a Good Pixel per inch ratio so that We can't see any dot with naked eye but thw color production is Soo Bad .....
I mean if we compare with Samsun display... They Are far better then This
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The color reproduction on the LG panels is actually *really* good. Samsung cranks the vibrancy and saturation up on their displays because it is pleasing to most people's eyes. If anything, Samsungs color reproduction is vastly inferior with default settings. Both class of panels can be calibrated to be more correct though.
The other thing is that LGs colors are "cooler" and Samsung *always* biases towards warmer displays.
helf said:
The color reproduction on the LG panels is actually *really* good. Samsung cranks the vibrancy and saturation up on their displays because it is pleasing to most people's eyes. If anything, Samsungs color reproduction is vastly inferior with default settings. Both class of panels can be calibrated to be more correct though.
The other thing is that LGs colors are "cooler" and Samsung *always* biases towards warmer displays.
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As we all knows people want Color vibrancy which Samsung is delivering actually.
I've tried to calibrate my display many time but even LG's display can't compete with Samsung's 2013 flagships display.
maxi65 said:
As we all knows people want Color vibrancy which Samsung is delivering actually.
I've tried to calibrate my display many time but even LG's display can't compete with Samsung's 2013 flagships display.
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In what ways? And don't forget you are comparing an IPS-LCD to SAMOLED+ which will have vastly better blacks. LCDs can't yet compete on the contrast of an OLED.
I don't care what people want. They jump from one has to another and sacrifice utility for form at the drop of a hat.
I'll keep my color correct LCD that won't suffer from actual burn in
(My retention is all but nonexistent and that isn't permanent regardless)
helf said:
In what ways? And don't forget you are comparing an IPS-LCD to SAMOLED+ which will have vastly better blacks. LCDs can't yet compete on the contrast of an OLED.
I don't care what people want. They jump from one has to another and sacrifice utility for form at the drop of a hat.
I'll keep my color correct LCD that won't suffer from actual burn in
(My retention is all but nonexistent and that isn't permanent regardless)
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Whatever it is.... There is no comparison between Ips LCD and SuperAmoled display .
By the way your retention problem can simply be fixed if you're rooted
maxi65 said:
Whatever it is.... There is no comparison between Ips LCD and SuperAmoled display .
By the way your retention problem can simply be fixed if you're rooted
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Click to collapse
Oh I know. I run custom kcal settings
maxi65 said:
As we all knows people want Color vibrancy which Samsung is delivering actually.
I've tried to calibrate my display many time but even LG's display can't compete with Samsung's 2013 flagships display.
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Click to collapse
You can try using the built-in Comfort View to make the display warmer. I set mine to high and it looks really close to my Galaxy Note 4, using the Basic display color option.
phamanhvu01 said:
You can try using the built-in Comfort View to make the display warmer. I set mine to high and it looks really close to my Galaxy Note 4, using the Basic display color option.
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Low,mid,high?
maxi65 said:
Low,mid,high?
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Yup that one. I use high on mine. Here's a comparison to my Note 4 with the basic color mode. The Note 4 is warmer here, but I'd say that it's pretty close. And a heck lot better than stock.
phamanhvu01 said:
Yup that one. I use high on mine. Here's a comparison to my Note 4 with the basic color mode. The Note 4 is warmer here, but I'd say that it's pretty close. And a heck lot better than stock.
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There is much difference between these two
maxi65 said:
There is much difference between these two
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Well...okay for you then.
Image retention
Have you experienced that? Annoying...
fanasty said:
Have you experienced that? Annoying...
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Here is the working fix of image retention for your rooted fone
https://forum.xda-developers.com/v20/how-to/lg-v20-screen-burn-fixed-t3661631
maxi65 said:
Here is the working fix of image retention for your rooted fone
https://forum.xda-developers.com/v20/how-to/lg-v20-screen-burn-fixed-t3661631
Click to expand...
Click to collapse
Thanks for the tips. but I d rather not root it for security concerns.
Screen Ghosting
XDA_RealLifeReview said:
The LG V20 has a crazy crisp display. Just kidding, this is automated text so who knows if this screen is any good. So, you be the judge! A higher rating indicates that it's extremely sharp and clear, and that you cannot see pixels with your naked eye.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
Its terrible, Is this a known issue I want a new phone.
fanasty said:
Thanks for the tips. but I d rather not root it for security concerns.
Click to expand...
Click to collapse
Visit the thread I've Posted previously in my Reply.
There are some users who have reported a working method for non rooted devices
Peace

Huawei P20 pro Secondary rate amoled screen??!!

https://youtu.be/XIMLoLxmTDw
Hello everyone.. I'm sorry for bad English but try to understand it's important..
I think that Huawei cheated us with p20 pro..
We paid 890 euros for one of the best mobiles in the market and Huawei used second rate display of amoled.. And please tell me did you paid 890 euros for second rate display? I don't think so..
So follow the instructions and you will see what I mean.
Go on a completely dark room, without light at all..
Use brightness 100%
Click the video and turn your phone to watch it on full screen..
W8 for the a little bit and you will see white colours coming out from your screen and tell me..
Is that normal for amoled panel?
No its not.. Black should be completely black...
I took my phone to Huawei fix center and they refuse to see.. They don't recognize it as problem and they refuse to give me my money back..
What do you say?? Check the same with s9 and s9+.
P20 pro user.
no such problem on my device.
You mean you have some dead pixels?
jh787 said:
You mean you have some dead pixels?
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No dead pixels, no white lines, just a properly working Amoled screen.
Had major light leak from the bottom of the screen it could only see it on a black background in low light
scook94 said:
no such problem on my device.
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Look better with more dark. All device has the same.
Black is only black not even a peace of white noise
Neo_Sk8eR said:
Had major light leak from the bottom of the screen it could only see it on a black background in low light
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I said use the video on full screen on a dark area and just WI to see.
scook94 said:
No dead pixels, no white lines, just a properly working Amoled screen.
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I have already check it one a 3 different devices. One from germany/ England and greek
Noexcusses said:
I have already check it one a 3 different devices. One from germany/ England and greek
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Not sure what you're trying to say.
scook94 said:
Not sure what you're trying to say.
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Click to collapse
You will see white noise around of the screen and in. The. Middle of it..
That's is not 100% amoled screen. Do the same check with s9 and s9+
Noexcusses said:
You will see white noise around of the screen and in. The. Middle of it..
That's is not 100% amoled screen. Do the same check with s9 and s9+
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Click to collapse
I have no white noise. Not sure what more I can say, I do NOT have the problem you are describing, end of.
No problems on mine either. The screen is pitch black on that YouTube video
No problem on mine.
Also, why on earth are you paying €890 if you just received it? They're available for at or below €700 now.
mudnightoil said:
No problem on mine.
Also, why on earth are you paying €890 if you just received it? They're available for at or below €700 now.
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Click to collapse
Did I say that I just received it?
I bought it when it came out on the market.
JadranB said:
No problems on mine either. The screen is pitch black on that YouTube video
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Click to collapse
I forgot to mension that you need to have 100% brightness on screen
Noexcusses said:
Did I say that I just received it?
I bought it when it came out on the market.
Click to expand...
Click to collapse
I forgot to say that you should have 100 % brightness
scook94 said:
I have no white noise. Not sure what more I can say, I do NOT have the problem you are describing, end of.
Click to expand...
Click to collapse
I forgot to say that you should have 100 % brightness...
JadranB said:
No problems on mine either. The screen is pitch black on that YouTube video
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Click to collapse
Try again an use 100% brightness
I can see what you mean. I can see it even on low brightness. I have never done this test before, so cannot comment on other oleds I've owned.
Could it be compression? I say this because after seeing the effect in this video. I tested others, and i found that the severity of the effect is lesser. Also the uniformity changed between videos, whilst staying consistant to each.
Your video was much more pronounced than some others, this makes believe that there is something else in the works.
I know when i use a pure black wallpaper, the screen is perfect black. Also im pretty sure the AOD has pure blacks too
Sc00p007 said:
I can see what you mean. I can see it even on low brightness. I have never done this test before, so cannot comment on other oleds I've owned.
Could it be compression? I say this because after seeing the effect in this video. I tested others, and i found that the severity of the effect is lesser. Also the uniformity changed between videos, whilst staying consistant to each.
Your video was much more pronounced than some others, this makes believe that there is something else in the works.
I know when i use a pure black wallpaper, the screen is perfect black. Also im pretty sure the AOD has pure blacks too
Click to expand...
Click to collapse
It doesn't work on wall papers..
On Video is easier to see

Pubh akm watermark?

What happened to my phone. I play pubg on rog 2. There is this akm on every white background. Lol
Painfinity said:
What happened to my phone. I play pubg on rog 2. There is this akm on every white background. Lol
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Screen burn?
apollo3x said:
Screen burn?
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They appear also when i take any screen shots. If it is screen burn then they should not appear right?
Painfinity said:
They appear also when i take any screen shots. If it is screen burn then they should not appear right?
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Click to collapse
Then probably some software glith. Similar thing happened once on my Lenovo Zuk z2 plus, which has an ips panel. A soft resrt should fix it

Low brightness - Screen Gamma/Calibration Performance

Does anyone else feel like there's a haze/fog over the screen when the brightness is around 20% or lower?
This seems to be more noticeable on grey backgrounds. White and pure black seem perfectly fine to the eye
It's hard to try and explain?
Could it be the same issue that*plagued the 4 when it originally came out. Gamma/software calibration*needed*possibly?
It seems fairly uniform too, which makes me think gamma issue rather than panel/HW issue?
Has anyone else noticed the same?
yes, i see the same!
Yeah, we discussed a similar behavior in this thread: https://forum.xda-developers.com/pixel-5/help/colours-bit-off-everything-bit-beige-t4179867
For me I do see this "fog" brownish tint in every brightness situation....
Melecatius said:
Yeah, we discussed a similar behavior in this thread: https://forum.xda-developers.com/pixel-5/help/colours-bit-off-everything-bit-beige-t4179867
For me I do see this "fog" brownish tint in every brightness situation....
Click to expand...
Click to collapse
Not the same thing. You're on about color profiles in that thread. This is more like a contrast issue at lower brightness levels
Well... than i have both... there’s fog with loss of contrast and there is a „warm“ color calibration.
My P3 shows black areas where the P5 is grey. Plus, white is minimal brownish so i loose contrast.
I come from a Pixel 2 XL with the black crush. In terms of contrast at low brightness levels, the Pixel 5 is far superior.
Undecided whether to keep it or not.
Grey's look really weird compared to my S10e. Nice and dark on the S10 and really light/pale on the Pixel?
Here's a capture of screen uniformity too
https://ibb.co/mcWc5Lw
superleeds27 said:
Undecided whether to keep it or not.
Grey's look really weird compared to my S10e. Nice and dark on the S10 and really light/pale on the Pixel?
Here's a capture of screen uniformity too
https://ibb.co/mcWc5Lw
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Click to collapse
Oh wow that's really bad, is it a bug?
Shady282 said:
Oh wow that's really bad, is it a bug?
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Nope. Just the garbage Google send out
Oh wow that's quite bad, mines perfectly fine no issues screen wise

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