I noticed that when I turn my brightness down my phone gets a purplish tint but it goes away as the brightness goes up. Is this because its special type of LED screen or the over saturation of colors?
can you post some pics please?
Normal for AMOLED screens. They tend to get a red tinge to them when they dim down.
staulkor said:
Normal for AMOLED screens. They tend to get a red tinge to them when they dim down.
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Alright I guess the technology isn't perfect yet definently not a deal breaker
I was wondering why the light grey look pink in gmail app
I see it as well. A little annoying, but not a giant problem. The blazing speed of the phone kinda makes up for it.
does anybody of you also noticed this thing: http://www.nexusoneforum.net/forum/nexus-one-tech-issues-bug-reports/1199-amoled-display-issue.html ???
eug89 said:
does anybody of you also noticed this thing: http://www.nexusoneforum.net/forum/nexus-one-tech-issues-bug-reports/1199-amoled-display-issue.html ???
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I did notice this as well. Some of the red pixels on the edges of text seemed to have drifted a little too far from the body of the glyph. I actually thought the same thing as this poster - sounds like they need to tweak their "subpixel LCD text" algorithms to match the different layout of the OLED screen.
I'd add to his analysis that subpixel LCD text algorithms typicall employee adjustments for the non-linear response of the pixels (steps of brightness near the dim end of the scale are not the same perceived size as steps of brightness near the bright end of the scale) and OLED may not only have different non-linear response, but it may have different response in each of its R, G, and B pixel elements...
This all should be tweakable in software and is bound to be improved as OLED screens gain popularity.
Okay, so, one of the things that's really disappointed me with some recent Android tablets I've tried out has been the screen's color temperature and contrast:
1. The Samsung Galaxy Tab 2 7" and Toshiba Excite 10 all had very cold screens, with very blue-ish whites. Also, contrast was poor on both, so reading ebook on them with black text on a "white" background was unpleasant.
2. On some Primes I tried, whites were a dingy yellowish color (although I'm not sure that's because of the temp or some other issue), while some were a nice neutral-to-warm color.
3. The Toshiba Excite 7.7 screen varies depending on how much black/dark colors are being shown, clearly a power-saving feature. On screens with a lot of whites, the temp is made much coolor and contrast is reduced. On screens with a lot of darker colors, temp is warmer, contrast is increased, and whites are much less blue.
So, what I'm wondering about the Nexus 7 is this: what's the apparent color temp? Are whites "white," or are they yellow-ish (warmer) or blue-ish (colder)? And how's contrast, specifically black text on white?
I know I'll get the darn thing in a few weeks, but in the meantime I'm not finding any reviews that say anything other than "great screen for the money." And unless someone's being really careful, it's tough to show screen colors and temperature in pics and video...
I haven't received the z3c yet but wanted to start theis thread early so everyone can post what display setting there using and any issue on the display. This is from the phone areana review.
" Color accuracy is way off on the Xperia Z3 Compact. Sony has gone purposefully with a colder, noticeably bluish display with color temperature reaching the whopping 10000K (while 6500K is the reference value, and everything above it is cold). Color balance in greyscale is noticeably skewed towards the blue across all brightness levels. Color purists have the option to adjust color balance with separate controls for red, green, and blue. With some fiddling (you’d need to add in a lot more red, and a bit more green to get to more balanced colors,*we tweaked it to the following values: red ~ 250, green ~ 190, blue ~ 0), you can get to the point where colors are not outrageously blue, but getting this right is no trivial task and requires either a trained eye, or a colorimeter."
Sent from my D6503 using XDA Free mobile app
It's great that we have white balance settings, but the only thing I don't like about it is that it decreases screen brightness when applied.
for me its Red 40, Green 75 and Blue 0
If anyone has a colorimeter at hand it would be greatly received if they could perform some tests and provide the optimum RGB values.
dillalade said:
If anyone has a colorimeter at hand it would be greatly received if they could perform some tests and provide the optimum RGB values.
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I plan on doing this as soon as I receive my phone.
tocirah1 said:
I plan on doing this as soon as I receive my phone.
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Awesome! this will be greatly appreciated.
Thanks! :good:
Anyone that had received the are you satisfied with the stock screen settings?
Sent from my D6503 using XDA Free mobile app
I'm pretty happy with the colors. Coming from N4, that always seemed a little dim.
damned91 said:
for me its Red 40, Green 75 and Blue 0
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This looks good to my eye and a white paper reference. Cheers
cheapshot789 said:
Anyone that had received the are you satisfied with the stock screen settings?
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No - I'm no color purist, but the extreme blue tint was very obvious and off-putting. Very puzzling choice on Sony's part, it makes the screen look really bad.
I turned off X-Reality and put it side-by-side with my Moto G and adjusted the sliders until it more or less matched my Moto G. I'm still fiddling with it, but right now I have it set to Red 120, Green 145, Blue 0.
Doesn't the display get significantly darker when using high values for white balance?
Leaving XReality on - I like R:20, G:20, B:0. Just warms things up a tad without overdoing it.
So is everyone experiencing the same blueish tint?
Sent from my D6503 using XDA Free mobile app
degraaff said:
Doesn't the display get significantly darker when using high values for white balance?
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A little bit, I guess? It's still more than readable for me in sunlight, and I'm using Red 120 + Green 145.
I've been using Red 40 + Green 73. No "Image Enhancements"... my reality is enhanced enough, thank you. It does *appear* dimmer, but I'm going to assume that's a physiological color perception issue. You can increase the brightness of the display while keeping the ambient light sensor on, which is a nice feature. Also, the screen can still get blisteringly, stupidly bright if you disable the sensor and crank it all the way up, even with those settings.
I have a colorimeter, and I know that the diagnostics menu lets you do a series of display tests (including flipping to red/green/blue). Does anybody know if those panels apply your color balance settings? Or, alternatively, a good (preferably free) Android app to help with calibration?
Also, seriously, WTF Sony. The displays look almost comically bad straight out of the box. I feel bad for every user who buys the phone and never delves into these settings. :|
marumari said:
It does *appear* dimmer, but I'm going to assume that's a physiological color perception issue.
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As far as I'm aware, the reason why Sony's white balance option makes the screen appear dimmer is because it's not really a true white balance option, but rather a sort of workaround where it adds a coloured transparent overlay to the screen. Higher values mean that the overlay becomes less transparent so the colour overlay will appear more intense while making the screen appear dimmer consequently. There are third party white balance apps in the Play Store which have exactly the same effect, although those also add a bit of lagginess to everything. But the colour and dimming effect is the same.
degraaff said:
As far as I'm aware, the reason why Sony's white balance option makes the screen appear dimmer is because it's not really a true white balance option, but rather a sort of workaround where it adds a coloured transparent overlay to the screen. Higher values mean that the overlay becomes less transparent so the colour overlay will appear more intense while making the screen appear dimmer consequently. There are third party white balance apps in the Play Store which have exactly the same effect, although those also add a bit of lagginess to everything. But the colour and dimming effect is the same.
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Huh. I mean, I use Twilight (basically the Android version of f.lux) on my Nexus 5, and have never noticed lag issues. It is *definitely* an overlay, though. That's very surprising that Sony would use such a method, as they actually have access to the actual firmware. You would think, as such, that it would allow you to use ICC color profiles.
marumari said:
Huh. I mean, I use Twilight (basically the Android version of f.lux) on my Nexus 5, and have never noticed lag issues. It is *definitely* an overlay, though. That's very surprising that Sony would use such a method, as they actually have access to the actual firmware. You would think, as such, that it would allow you to use ICC color profiles.
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Ah, no, I meant apps to correct the white balance, not colour measuring apps. I used to try one of such apps on my old xperia tablet s because its display had a noticeable yellow hue. It did make the colours better, albeit a little dimmer, but everything seemed to be laggy/choppy when the effect was applied.
Oddly, according to my Spyder4, good settings are R:0, G: 137, B: 255.
I'm not convinced...
tocirah1 said:
Oddly, according to my Spyder4, good settings are R:0, G: 137, B: 255.
I'm not convinced...
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Well, the screen is said to be blueish and you're adding extra blue so of course that's not the way to fix it.
http://www.lagom.nl/lcd-test/black.php
I've always used the above link for testing how accurate my displays are. The tests on that site I've found most important in descending order are black level, white saturation, and contrast. (the gamma calibration test never seems to work well on phones)
The Axon 7 (A7) is my first AMOLED display. My old phone is the Nexus 5 (N5) with an IPS display.
On the black level test, squares 1-6 all blend with the black background on the A7, while the N5 only loses square 1 to the background. On white saturation, the A7's last visible square is 251, while on the N5 I can see up to 253. Finally, on the contrast test the A7 colours start at 2-3, with red and pink washing out the soonest at 21. On the N5 all the colours are visible at 1, and red and pink wash out at 25.
Through all these tests it seems the stock A7 AMOLED display is over saturated with poor contrast. On the stock ZTE firmware, the only display adjustments are in settings under "screen effects". Mine is set to Natural and Warm, but all settings here do not affect the test results.
I've read that after many complaints, OnePlus updated their firmware to give the OnePlus 3 special RGB calibration tools. Are there any apps that could do similar corrections on the Axon 7? Any rooted apps, or would CyanogenMod correct this?
It's becoming quite obvious when browsing photos or watching video, and especially takes away from the experience in dark movies.
So i noticed that when you are in a dark room and you set the brightness to the lowest (0%-20%), some dark black colors of buttons and graphics becomes Red.
You can easily see this in the setting menu honestly at lowest brightness.
Changing display color presets does change it in vivid, natural etc.
What does help is going to oneplus laboratory at bottom of settings and enabling DC dimming.
It fixes the problem but also make the gamma very very low so a lot of the objects are too dark and kinda shaded with some extra shadow.
Is my screen faulty? Any other display settings or tuning i can do?
Does this oled panel have too much technology in it up to a failt? (120hz, QHD and 1Billion colors)
mety333 said:
So i noticed that when you are in a dark room and you set the brightness to the lowest (0%-20%), some dark black colors of buttons and graphics becomes Red.
You can easily see this in the setting menu honestly at lowest brightness.
Changing display color presets does change it in vivid, natural etc.
What does help is going to oneplus laboratory at bottom of settings and enabling DC dimming.
It fixes the problem but also make the gamma very very low so a lot of the objects are too dark and kinda shaded with some extra shadow.
Is my screen faulty? Any other display settings or tuning i can do?
Does this oled panel have too much technology in it up to a failt? (120hz, QHD and 1Billion colors)
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Yes these are the first attemots on 120 hz/qhd panels..
Are a bit problematic.
I believe next year they are coming better panels..on next oneplus device(OP9)
cultofluna said:
Yes these are the first attemots on 120 hz/qhd panels..
Are a bit problematic.
I believe next year they are coming better panels..on next oneplus device(OP9)
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I read tons of reviews for a month before buying, non of them mention this issue.
Are we just supposed to live with this on a 900 dollar phone?
mety333 said:
I read tons of reviews for a month before buying, non of them mention this issue.
Are we just supposed to live with this on a 900 dollar phone?
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Yes
mety333 said:
So i noticed that when you are in a dark room and you set the brightness to the lowest (0%-20%), some dark black colors of buttons and graphics becomes Red.
You can easily see this in the setting menu honestly at lowest brightness.
Changing display color presets does change it in vivid, natural etc.
What does help is going to oneplus laboratory at bottom of settings and enabling DC dimming.
It fixes the problem but also make the gamma very very low so a lot of the objects are too dark and kinda shaded with some extra shadow.
Is my screen faulty? Any other display settings or tuning i can do?
Does this oled panel have too much technology in it up to a failt? (120hz, QHD and 1Billion colors)
Click to expand...
Click to collapse
I also have same problem.
Had same issue returned mine
Try turning off true tone and see
If you've got eye comfort turned on then this is normal..turn if off and it should go back to black.