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LCD Contrast Test

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By Darkimmortal, Senior Member on 13th February 2014, 09:43 AM
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This is the app I used to test: https://play.google.com/store/apps/d...eencolor&hl=en

Contrast - Black: Squares 6 and above are clearly distinguishable, 4 and 5 are just about visible
Contrast - White: All squares are distinguishable
Color Scale - Brightness: All squares are distinguishable
Color Scale - Saturation: Highest 4 squares are equally saturated on all but orange, light blue and grey


This is with an AUO panel and default white balance - I'm hoping someone with a JDI panel (or indeed another AUO) can weigh in with their observations.
Last edited by Darkimmortal; 13th February 2014 at 12:19 PM.
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13th February 2014, 02:56 PM |#2  
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what is wrong with your display then?
13th February 2014, 04:33 PM |#3  
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I have the JDI (Novatek) and confirm the same crushed black levels with Color Test and Display Tester - except that only 7 and above are distinguishable. White contrast and brightness are the same as yours, but color saturation tests vary between the two apps .... personally I trust Display Tester better, which shows blues only are moderately over-saturated.

The crushed blacks are definitely noticeable in dark scenes with or without X-Reality. The panel is quite warm compared to others, and the White Balance settings are somewhat useless since they involve an overlay filter, it seems, and so just darken the screen.
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13th February 2014, 06:35 PM |#4  
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Quote:
Originally Posted by ghtop

I have the JDI (Novatek) and confirm the same crushed black levels with Color Test and Display Tester - except that only 7 and above are distinguishable. White contrast and brightness are the same as yours, but color saturation tests vary between the two apps .... personally I trust Display Tester better, which shows blues only are moderately over-saturated.

The crushed blacks are definitely noticeable in dark scenes with or without X-Reality. The panel is quite warm compared to others, and the White Balance settings are somewhat useless since they involve an overlay filter, it seems, and so just darken the screen.

Yeah not too happy with the white balance setting compared to voodoo/cm colour settings on my old galaxy s, but gets the job done for the most part. Call me crazy but I like it even warmer than default

And hopefully there will be some software improvements to the display in Kitkat
Last edited by Darkimmortal; 13th February 2014 at 06:49 PM.
13th February 2014, 06:51 PM |#5  
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how can i know if my device use JDI or AUO panel?
14th February 2014, 12:32 AM |#6  
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It says on the back of the screen

Sent from my D5503 using Tapatalk
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14th February 2014, 11:36 AM |#7  
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Quote:
Originally Posted by pepeo123

how can i know if my device use JDI or AUO panel?

Assuming you don't like the idea of dismantling your phone to check the back side of the panel you might want to follow my instructions in this post.
15th February 2014, 01:05 AM |#8  
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Yes Louis has the best way, sorry for my late reply, only just got my screen back in. Mines a JDI

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14th April 2014, 03:28 AM |#9  
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Z1c black w9 telenor-hungary auo-panel (no "blue" problem)

To dark, the dark areas (too high contrast/gamma), dislike me...
But, good deep-black.

Automatic background light regulation not a good idea (automatic brightness: OFF, x-reality: OFF ).



- sorry my bad english -
Last edited by mcghun; 14th April 2014 at 03:50 AM.
16th April 2014, 10:09 AM |#10  
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solution for "crushed blacks" here : http://forum.xda-developers.com/show...php?p=51945091
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19th April 2014, 02:28 AM |#11  
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that's good

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