Contrast (true blacks)

[XDA_RealLifeReview]

How well do you know your fifty shades of grey? Rate this thread to express how good the Xiaomi Mi 8's display contrast is. A higher rating indicates that black is true black, rather than a very dark gray.

Then, drop a comment if you have anything to add!

 

[ej_424]

Is it just my phone or are the blacks not as dark/deep as what an AMOLED screen should be? If i turn on the "hide notch" option the area is still much lighter than the notch itself. I can clearly still see where the notch is. The blacks are dark but not samsung AMOLED dark (pitch black).

 

[_katho_]

Pixels are off, as black as it can be. You can see "something" because you have a physical notch. You don't see pixels light up, because they are off.

 

[A7.Rtb]

Hello everyone.
I'm very interested in this device and I want to buy it very soon, so I have a simple question I hope it will be answered.
The most interesting thing -to me- about phone is the screen. I want a phone with Super AMOLED screen and they say that the screen of this phone is the same, but the "lab tests of GSMArena" show that the black color has a value of (0.002 cd/m²) when the brightness of the screen is in "max auto".
It's known that Super AMOLEDs turn off the pixels that are responsible for displaying the black color, and these pixels are supposed to remain off regardless of the brightness level of the screen. So,if the screen is Super AMOLED, how did this value appear?!!
I know it is a very small and undetectable value, but it indicates that the pixels are not turned off -Am I wrong ??-.
Is it conceivable that the screen is not Super AMOLED,or did I miss something?
Knowing that all Samsung phones with AMOLED screens, even the cheapest ones, have the value (0.000 cd/m²) for the black color.
I am very sorry to prolong my question and I hope that someone will answer me.
Thanks in advance.

 

[achickennugget]

Hello everyone.
I'm very interested in this device and I want to buy it very soon, so I have a simple question I hope it will be answered.
The most interesting thing -to me- about phone is the screen. I want a phone with Super AMOLED screen and they say that the screen of this phone is the same, but the "lab tests of GSMArena" show that the black color has a value of (0.002 cd/m²) when the brightness of the screen is in "max auto".
It's known that Super AMOLEDs turn off the pixels that are responsible for displaying the black color, and these pixels are supposed to remain off regardless of the brightness level of the screen. So,if the screen is Super AMOLED, how did this value appear?!!
I know it is a very small and undetectable value, but it indicates that the pixels are not turned off -Am I wrong ??-.
Is it conceivable that the screen is not Super AMOLED,or did I miss something?
Knowing that all Samsung phones with AMOLED screens, even the cheapest ones, have the value (0.000 cd/m²) for the black color.
I am very sorry to prolong my question and I hope that someone will answer me.
Thanks in advance.

The amoled on Mi 8 is made by samsung so.... Frankly speaking these tests are probably not very accurate, imagine this, 0.002, literally just a tiny bit of sunlight and any tests they conduct will show a value other than 0.000. I am pretty sure the equipment they use to test (GSMarena) is not used under a controlled situation. I would take these tests at face value because most equipments have an error of 0.005+-

 

[skanskan]

Mine looks really good.

 

[A7.Rtb]

The amoled on Mi 8 is made by samsung so.... Frankly speaking these tests are probably not very accurate, imagine this, 0.002, literally just a tiny bit of sunlight and any tests they conduct will show a value other than 0.000. I am pretty sure the equipment they use to test (GSMarena) is not used under a controlled situation. I would take these tests at face value because most equipments have an error of 0.005+-

Thank you for answering my question.
So, you say that the GSMArena tests may be faulty, and that the Mi 8 screen is made by Samsung, Which means it is exactly the same quality as the screens of Samsung phones themselves. Well, that's something reassuring. Thanks for explaining this to me

 

[achickennugget]

Thank you for answering my question.
So, you say that the GSMArena tests may be faulty, and that the Mi 8 screen is made by Samsung, Which means it is exactly the same quality as the screens of Samsung phones themselves. Well, that's something reassuring. Thanks for explaining this to me

I am not saying that the tests are faulty, it is just that the accuracy when you are talking about it at the scale of 0.0002, is not something that u can obtain accurately with the testing methodology by gsmarena, it must be conducted in lab environment where it is controlled to conclusively claim the value at that level of precision

 

[A7.Rtb]

I am not saying that the tests are faulty, it is just that the accuracy when you are talking about it at the scale of 0.0002, is not something that u can obtain accurately with the testing methodology by gsmarena, it must be conducted in lab environment where it is controlled to conclusively claim the value at that level of precision

Ok, thank you for making it clear to me, bro

 

[tomsag]

just go in a complete dark room and look at the display. Best is to look at a complete dark photo or jpg file. That's the best test.

 

[german103]

The screen makes me smile

 

[galakty]

Screen works fine, dont read the GSMArena
I've this phone and its ok. Black is off, its OLED...

 

[IoIam]

With dim screen in a dark environment I can see a pretty bad black smear effect, however I guess it is a common oled problem plus it's not really visible with some brightness

 

[nicolas57]

Problem with old amoled screen was the delay between pixel off and pixel on. So to avoid this delay, a solution can be to let the pixel on but with very low intensity instead of switching it off. Maybe that's why pixels on mi8 aren't swich off..

 

[galakty]

With dim screen in a dark environment I can see a pretty bad black smear effect, however I guess it is a common oled problem plus it's not really visible with some brightness

Its normal for OLED.

 

[IoIam]

Its normal for OLED.

Well not really, I mean I guess it is common but I did not have this problem on my S3 and on my mother's s8 plus, although I've seen it on her S4.

 

[Propheticus]

While contrast en true blacks are good, it does seem to smear a lot more on low brightness scrolling than other phones with OLED I've seen/had.