AMOLED contrast

[smartuser8]

I noticed something weird compared with LCD screens. Every time there is gradient dark/grey color (wallpapers, apps backgrounds, ...) the gradient is always "broken" and become just a big and ugly full black area. I checked on all my previous smartphones with LCD and I have never this issue.

See here my pictures, in the "Battery HD" app, all the top display is only a big black box, is it normal? Can someone install this app a tells if it's the same issue on AMOLED please?

Thanks

 

[Silently]

The whole point of AMOLED is that it turns off when displaying black. So yes, by its nature there will be a sharp transition from "dark grey with backlight" to "off".

 

[smartuser8]

Yes, AMOLED means black is true black. But what I'm saying is even dark grey become black very fast. On my pictures, you say it's normal but the same thing is perfectly gradient on other phones.

In the app Display Tester, when I test the contrast, the result is very bad!

On this test:

I can't see anything between 0 and 8 with the Pixel 3a, it's just black. But with every other phones (LCD) I can see grey squares up to 2!

Can you test your contrast guys please? With the app or with the test image extraced from the app.

 

[yabadabadooo]

I can't see 0-4 but i can see all the others.
You tried full brightness?

 

[smartuser8]

What? You can see 5,6,7,8 ??? Impossible for me, full brightness...

 

[Gugus38]

Yes, AMOLED means black is true black. But what I'm saying is even dark grey become black very fast. On my pictures, you say it's normal but the same thing is perfectly gradient on other phones.

In the app Display Tester, when I test the contrast, the result is very bad!

On this test:


I can't see anything between 0 and 8 with the Pixel 3a, it's just black. But with every other phones (LCD) I can see grey squares up to 2!

Can you test your contrast guys please? With the app or with the test image extraced from the app.

I am still on my op6 as my pixel has just shipped. But I can see up to level 6 (barely) on this screen.. just fyi.

 

[c_tho]

yeah i can see from 5 up.

 

[qsxcv]

yup, check this lagom.nl/lcd-test/black.php

at minimum brightness (which I use a lot at night), I can barely make out the 40 square on my 3a. On my old pixel XL I can see the 10 square...

is there some way to calibrate things?

 

[smartuser8]

On your link display test (I will post image for everyone after my post) impossible for me to see anything between 1 > 8. I tried all, in the dark, max and min brightness

On all my previous smartphones (LCD) and laptop I just can't see between 1 > 3.

I really don't understand people who say "it's normal it's amoled so it's black blahblah..." but guys... the purpose of AMOLED is to make BLACK black, not grey black. Those images/tests are contrast test: see NOT BLACK elements (squares) on black background. So it's not about if blacks are black, it's about a lot of GREYS are black on this display where we can see the difference and squares on LCD, so it's not a good contrast. We have to stop to say everytime 'oh black is black so it's a perfect contrast", contrast ISN'T (only) that.

Image:

 

[qsxcv]

yup it's not normal in any sense. it's just poor (or lack of) calibration. on any decently calibrated display in a dark room you should be able to faintly see the squares in the top row.

 

[smartuser8]

Guys, are you serious? You really see the first line?

 

[c_tho]

Guys, are you serious? You really see the first line?

with the brightness all the way up i can see the last item on the first line, definitely nothing before that.

 

[9878]

I see 4 red dots