Database Users

A weird thing I've noticed on black clipping

Hello.
I've played this video on my sadly black clipping affected device and I've noticed something really weird :
http://vimeo.com/m/16198274
Every time a bass sound pops (like a drum following the rhythm) the black clipping pattern changes. (its easier to notice this on night scenes in the corners of the video)
I don't really know if it has something to do with the black clipping problem or with the way the video was edited. What do you think?
Excuse my English, I'm Spanish
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I was walking past a store and saw a Samsung tv with black clipping lol

Out device was a beta for samsung. They resolved the issue in note 2.
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i still cant forget the first day i discovered it on my note ! and the saturn rings on the calculator screen :cyclops:
i cant imagine a TV with it lol
but i have a samsung pc monitor and it seems ok ....
first time i hear that its associated with sound too.....

For tell truth, I just finished to watch the video, but I didn't notice any bad clipping issue. Btw video quality was very low, but still didn't notice anything. I also decreased the brightness to lower value, but nothing changed..... Should I consider my display a good one then?
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Bad-Pixel said:
For tell truth, I just finished to watch the video, but I didn't notice any bad clipping issue. Btw video quality was very low, but still didn't notice anything. I also decreased the brightness to lower value, but nothing changed..... Should I consider my display a good one then?
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No. You must see the video in a completely dark room. Brightness screen is irrelevant.
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vanpopel said:
No. You must see the video in a completely dark room. Brightness screen is irrelevant.
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I only see black clipping when i am in night mode. Besides that there is no black clipping even in the dark room at brightness levels given by default.
So for me it happens when i further decrease the beifhness levels.
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Black Crush

Anyone having screen issues black crush when brightness is low?
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None here...

keithhidalgo said:
Anyone having screen issues black crush when brightness is low?
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It does, but not that much. Watch the video in this post. Towards the end, the reviewer does a crush comparison with the s3
I tested my own display with the same gradient chart shes using and it looks the same I can see to 3 on that chart. Ive also ome across some netflix movies where the shadows clip on the S4, but not on my LCD. Again, nothing major, but its still there.....atleast on my device.

A little here, has been a thing on every OLED/AMOLED device I've ever owned.
No biggie.
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Also when brightness is low and I'm on settings when I'm scrolling down I can see as if the fonts is bleeding and colors are a bit pinkish. Normal or should I exchange?
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keithhidalgo said:
Also when brightness is low and I'm on settings when I'm scrolling down I can see as if the fonts is bleeding and colors are a bit pinkish. Normal or should I exchange?
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There are some of us, me included, who see a red tint to blacks in a dark room. The red subpixels seem to stay on. Some folks say they have pure blacks even in the dark.
Now I dont see pink text when scrolling, but maybe your eyes are sensitive enough to see the red from blacks bleed into the text.
Do you see a red tint in blacks in low light? If so, that might explain the pink text

Sad to say, the S4 actually clips more than my galaxy nexus. A clear indication of this is in Phase Beam live wallpaper. The S4 has a trouble doing a smooth gradient on the purple shadow on the lower right hand of the wallpaper. It just shows a blocky purple shape in this area. The Gnex shows a nice gradient. Bit of a disappointment

Made a video of it. Went into AT&T today and checked the display models and both did the same thing. Might be s big problem. https://www.youtube.com/watch?v=yL5TV8kuxac&feature=youtube_gdata_player
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Galaxy s4 purplish tint/blurring

Hi. I got my SGS4 a couple of days back. Initially, didn't have any trouble at all (mostly because I had been using it on max brightness). But now I am facing an issue I had been horrendously tormented by in the past. The grey gradients have a purple tint and the greys blurr on scrolling (esp on black background). No solution or cause of the problem is apparent to me.
I used to have a Nokia C7 back in 2011 and it used to do exactly the same. This is most evident when you have lowered the brightness. The dividers in the settings blurr & turn purplish on scrolling. Watching dark scenes in a video also shows some purple/pink smudges.
Is anyone else having this problem? Or is it just me? Is it present in all the phones or just some or maybe just mine?
Share your experience and/or opinions on this!
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I noticed this on mine too when scrolling trought the settings. It becomes blurry.

I think you should check out this thread
http://forum.xda-developers.com/showthread.php?t=2252445
Everyone is experiencing the same.
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Well all Samsung amoled screens have some issues like earlier note 2 having yellow tint
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I know AMOELDs do have a tint. But the blurring & smudges in videos is totally unacceptable. Is there a solution to this? Like some hue/gamma correction app? Or some color calibration for such screens?
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Try some different kerner if there is one for S4 to calibrate colors..
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In some angle u will get pink or purple tint and it s not problem
It s normal to have different experience in different angles
I had pink tint on s3 from low angle on side
Just thr s no big tint in IPS screen
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Has anyone, as of yet, had any luck with a different kernel?
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Obagleyfreer said:
I think you should check out this thread
http://forum.xda-developers.com/showthread.php?t=2252445
Everyone is experiencing the same.
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Please refer to the thread quoted above, there is no need for 2 threads about the same topic.
Thread closed.

Purple tint

Anybody got this? In low brightness some darker elements(specially gray) start become a little purplish
Also the colors seem less saturated in the default screen mode than the s3(also in standard) i thought i would be the opposite, is my screen defective or is this normal
I tried google but all i get are galaxy nexus results(purple tint)
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negrobembon said:
Anybody got this? In low brightness some darker elements(specially gray) start become a little purplish
Also the colors seem less saturated in the default screen mode than the s3(also in standard) i thought i would be the opposite, is my screen defective or is this normal
I tried google but all i get are galaxy nexus results(purple tint)
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Welcome to S4. Every galaxy S4 has this. Please refer to other threads on how to get rid of this smearing through software.
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The OP doesn't mention smearing.
This is a different issue to the smearing problem.
When the brightness is on low greys become purple. I have had 4 different S4s (all had to be replaced due to screen issues) and every single one had this problem on low brightness.
IMO there is no such thing as a perfect S4 screen!
I have finally settled on my 4th replacement and this one is still not great but I'm sick of returning them.
I have a pink tint at the top of this screen and also all the sensors, LED and front camera are misaligned in the casing, All over to the left.
Samsung have REALLY failed on the Quality Control of this device.

So it seems universal, well i will have to turn off auto brightness and use brightness at 30%
Any of u guys came from the s3? Do the s4 colors seem a little less saturated to u guys? I have them both side by side and it seems so
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Flash latest software update and get rid of smearing. ..
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negrobembon said:
So it seems universal, well i will have to turn off auto brightness and use brightness at 30%
Any of u guys came from the s3? Do the s4 colors seem a little less saturated to u guys? I have them both side by side and it seems so
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Yes. I had s3 before and the less saturation on S4 is intentional by Samsung. According to some detailed comparison, the colors of s4 are more accurate. It seems odd at first because our eyes are used to the oversatured screen of s3.
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plasmastate said:
Yes. I had s3 before and the less saturation on S4 is intentional by Samsung. According to some detailed comparison, the colors of s4 are more accurate. It seems odd at first because our eyes are used to the oversatured screen of s3.
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yeah, i really got used to my overly-poppy colors, but this screen is still beautiful anyways
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Screen quality, yellow tint?

Hi
Currently got an S4 and I'm looking to replace it as I use it a lot for movie watching and magazine reading and the slight yellow tint to the s4 screen really annoys me.
Seeing as the note 3 has a similar screen, but just slightly larger, can people confirm whether the note 3 suffers the same inaccurate whites/yellow tint?
Thanks!
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I don't know what yellow tint you're talking about but my S4 didn't have it nor does my N3. I dont use adapt display and my screen mode is set to dynamic
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It's when viewing whites my s4 has a decidedly warm colour to it so whites look dirty and slightly yellowy. It's a well reported characteristic of the s4 although probably didn't affect every single one.
Just want to know if the note 3 solves this by having cool whites as opposed to warm. Maybe personal preference but I much prefer a cooler display.
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I have noted it but just in the movie mode, in dynamic and standard it seems a little bluer to me but it's personal opinion. But I have to say damn this is a beautiful display worth the choice of the phone by itself
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That's good. As long as some of the modes have a cooler tint I'll be happy. The green/yellow tinge is just a bugbear of mine.
Thanks for the replies.
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if interested in note3 screen quality, take a look here:
http://forum.xda-developers.com/showthread.php?p=46040949

guys check if you have adaptive display selected. it adds yellow hue to reduce eye strain

Yap my note 3 has yellow tint some uper area yellowish shade...if I compare with down area of screen.there is difference in low brightness...anyway to fix?