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Display of Black colours

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By deepflash, Senior Member on 30th April 2014, 10:10 PM
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Hi guys.

Just a Quick question:
I compared the screen colours of my Z2 with my old Samsung Galaxy S2 using the app screen test.
There I noticed, that black on the Z2 isn't really black while on my S2 black is truly black.
Is that normal?

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30th April 2014, 10:21 PM |#2  
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Quote:
Originally Posted by deepflash

Hi guys.

Just a Quick question:
I compared the screen colours of my Z2 with my old Samsung Galaxy S2 using the app screen test.
There I noticed, that black on the Z2 isn't really black while on my S2 black is truly black.
Is that normal?

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Its normal as far as i know Samsung phones use Super Amoled screen which has darker black while Sony use IPS screen technology has less darker black ,, dont worry its totally normal
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30th April 2014, 10:26 PM |#3  
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It can't really be darker than the screen itself, because black is absence of light, which means the light sources are turned off when displaying black.
The color black will be as dark as the panel.
30th April 2014, 10:55 PM |#4  
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Well the panel is definitely much more black when it is turned off.. In the end the black white contrast on my S2 is much better
When I run the screen test app, when black is being displayed, the screen isn't off though

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30th April 2014, 11:14 PM |#5  
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Quote:
Originally Posted by deepflash

Well the panel is definitely much more black when it is turned off.. In the end the black white contrast on my S2 is much better
When I run the screen test app, when black is being displayed, the screen isn't off though

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IPS is lighting even when display black, compared to AMOLED where every pixel has its own led diode so when AMOLED display black, its pixels eventually turn off. Thats why..

Different display technology, both have their adv. and disadv.
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1st May 2014, 12:54 PM |#6  
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On amoled displays black pixels turn completely off, which is why it has so good contrast.
1st May 2014, 05:28 PM |#7  
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this is completely normal, because the superamoled panel have isolated pixels. the black in amoled panels is literally black, no light emitted, only the reflections from screen. in a complete dark room, the screen blackness would be the same as the room. LCD panels cant do that, the best ones can do something like 0.08cd/m2 of black levels, this mean that the black is actually greyish, while super amoled can do 0cd/m2 meaning infinite contrast. according to reviews xperia z1 compact have a black level of 0.44cd/m2, and while the z2 has a better screen, the black levels should be around the same
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14th May 2014, 11:22 AM |#8  
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thx for the explanations.
Light emitted always needs battery consumption so I would assume, the amoled screen is especially with dark colours more battery saving, then the lcd screen, right?
14th May 2014, 11:51 AM |#9  
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Yes it is

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