[Q] Amoled color temperature gradient fix - Galaxy S 4 Q&A, Help & Troubleshooting

Hi! I have a 9506 variant, with a screen with slight color difference across the screen from top (cooler gray) to bottom (warmer gray).
I know, there are many such cases on samsung's amoled screens, and I also found that Cyanogen has a screen calibration, which can change the temperature for the whole screen. But is there a solution to fix not the whole screen, but partially, according to each screen's characteristics (user adjustable)?

You're probably looking for a screen filter app with adjustable overlay.
Though I don't think there are many apps with such a feature, as there aren't many requests for partial screen overlays.
Try CF.lumen. It was designed to adjust color temperature on the fly.

Related

Screen burn-in questions

Ok so I don't have screen burn-ins but I know it's a possible issue on Amoled screens so I have some specific questions about it:
-Using a white clock as a screensaver in the app ''carhome ultra'' could lead to a burn-in? it's a simple white clock on pure black background with a sentence ''please touch the screen for menu'',dunno if white color can do burnin...
-Using ''Daydream'' feature is a bad thing or as long as it's animated we are good?
-Using smartcover case (with window) is also considered as a burnin trigger?

[Q] Diagonal stripes/pattern on screen

I've noticed some faint diagonal stripes on my LG G2 (LG-D802). They make a pixel like pattern of stripes, only they are diagonal from upper left to lower right and mostly visible on solid clear colors like red, green or blue. The stripes are very thin and the width of the stripes is comparable/or slightly smaller then the pixel width of my old Samsung Galaxy S2 (>200PPI). In other words, it's not something I see all of the time but it gets noticeable when you look closely. And as I said it is mostly visible on solid colors, and not on text and other edges where pixels normally is visible (not that I think this is the actual pixels I see). One of the easiest ways to see it is to search after "red" on google images and open a red image, but it is also visible in most apps or on the homescreen.
Is this something anyone else has experienced/noticed, or is it it my display that is faulty?
I'm not allowed to post an outside link in my message (new user), but here is a picture if anybody want's to see.
It was not easy to capture this on camera, but the stripes are barely visible in the red of the Google+ icon and in the dark blue of the image icon. For size comparison; I use Nova Launcher with icon size 70% and the Minimal UI icon pack.
www[dot]dropbox.com/s/68roby6lgh310y0/DiagonalStripesLGG2.jpg
Could it be a problem with your screen protector? If not i recommend sending it in for a check..
Thanks for the reply.
I don't have any screen protector on, but the lines does seem to be fixed to the screen. I.e. if I move an object the lines does not stick to the object but "new" lines gets visible, so it can look like it can be something with the glass.
If nobody else has experienced the lines I will definitively send the phone in for service.
I tried the local phone store, but the guy only laughed at me because he did'nt see it. Great service attitude when you make the customers feel stupid
Maybe you are talking about the touch sensors?
All the phones have it and it's more visible on xperia phones.
Maybe, but I think the lines/pattern is to small and dense to be the normal grid that people see. When I turn the screen off I can (barely) see the the digitzer grid, but it is a completely different pattern (horizontal and vertical lines) and the lines are separated by several line widths (some millimeters maybe?). The diagonal lines I see are very close together. It looks like they are only a line width apart from each other.
One other thing I just noticed is that the lines does not rotate when the screen is in landscape mode. They still go from the front-camera corner down to the corner to the right of the LG logo.
Is it nobody with a good sight that can confirm if they see the stripes or not? Would have helped me a lot when proceeding with getting the phone in for service.

Screen Galaxy S5

Hi everyone, just a quick question. When my screen is set to +3 brightness or so I can see that in some menus (for example settings) the colour at the top of the screen is darker than on the bottom!! Please note, you can only see this when the screen is very bright. The more you are looking down on the screen the brighter it gets. When I look at Internet and the backcolour is white it also is darker at the top than on the bottom of the screen.
Is this normal or do I have a defective screen?
Gr. Marc

Screen flickering when using parallax wallpaper

This weird screen behavior was observed when I first used a parallax wallpaper application (FYI - it's the 3D Parallax Background by Vinwap).
When I set my moving wallpaper to an image that depicts a starry sky (i.e. lots of white little dots that subtly move when tilting the device), I noticed that the screen would show some visible horizontal flickering at the same area the sky sits.
The effect gets more noticeable as the brightness gets increased. For your reference, I attached a screenshot of my wallpaper to demonstrate what kind of image is required to replicate the issue.
Any ideas on why this issue might occur? Is it a common thing across AMOLED screens, or just another problem with OnePlus 5 panel configuration?

Samsung SM-T500 color temperature

Hello, is there any way to change the screen temperature of my device after rooting it? The blue filter of this tablet is very bad, as it does not change the relative values of the colors, but overlays a layer of color over the entire screen, thus spoiling the contrast and making the black colors horrible.
If you can provide any information about this, I would really appreciate it.

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