Minimum brightness? - Xiaomi Mi A3 Questions & Answers

Every post bashes the low brightness outdoor, but what I want to ask the users of this phone is if the minimum brightness is bothersome in dark environments like at night with lights off. Because I plan to do some light reading like that.
The GSMarena review mentions that lowest brightness is blinding 14.9nits. Is it really that bad?
Please let me know, I'm thinking of buying this phone.

rayulove69 said:
Every post bashes the low brightness outdoor, but what I want to ask the users of this phone is if the minimum brightness is bothersome in dark environments like at night with lights off. Because I plan to do some light reading like that.
The GSMarena review mentions that lowest brightness is blinding 14.9nits. Is it really that bad?
Please let me know, I'm thinking of buying this phone.
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Without night light it is very bright with with the blue light filter on with minimum brightness it isn't all that bad

It burns my eyes when room is complete dark. No chance using it in dark room.

peterf81 said:
It burns my eyes when room is complete dark. No chance using it in dark room.
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What if I have white text in a predominantly black background?

rayulove69 said:
What if I have white text in a predominantly black background?
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By text you mean reading ? This phone display is definitely not suited for reading, the text is blurry/fuzzy.

Related

Display not TRUE BLACK ?

Hello,
Im Using Amoled Smartphones since the Galaxy (i7500). They all were always showing at 100% Brightness for Black parts of a picture a true Black like the Display is OFF.
If you put the Brightness to 100% and go to an complete Dark Room and open an Black Picture you see some Gray/Yellow Tint on the Screen. You can compare this good by locking the phone to see the Screen OFF and than unlock it to view the Black Picture again. You should see a huge difference. Hope to hear from your experiences.
I've seen that already on the S1 when abusing it a a nightstand clock.
Best guess I've heard is that the (AMO)LED screen leaks some luminosity to other pixels in the background which is then visible as a very faint glow.
However I rather believe that the AMOLED are not truely off but rather get some leak voltage and thus have a very-very-very faint glow (like one photon per second xD )
That would explain the black spots most people seem to mind on AMOLED when on minimum brightness with a black screen; they are truely off or without insufficient leak voltagage (LED's requie a minimum voltage to work).
AMOLED production is somewhat complicated (very thin layer of silver as a power source and a control-layer) so I wouldn't be surprised if the above is true.
Nothing is perfect, especially not a rather new technology.
What else did you expect from a backlit display.
jbadboy2007 said:
What else did you expect from a backlit display.
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It's not backlit is the point.
Correct me if im wrong here but amoled is, by design, not backlit.
Sent from my LG-P920 using xda premium
Yeah so I was wondering why it does this little/ hard noticeable yellow/gray tint on a dark room...
There is no Backlight... Unfortunely i Sold my Galaxy S2 so I cant compare it.. But im Sure it wasnt like this
I have this on my gsiii and also on the Gnote... I think is due to the pentile screen
I had this on my Fascinate but realized it wasn't a big issue. Definitely more noticeable on my Gnex but it also has more pixels so that could be why you see more light. I wouldn't call it a problem because the majority of the time it's absolutely unnoticeable. Each pixel has so have some sort of voltage to be ready to react to changes. Turning off/on completely each time light is needed might waste battery.
P.S. I'm noob at displays but that's my theory.
Zacisblack said:
I had this on my Fascinate but realized it wasn't a big issue. Definitely more noticeable on my Gnex but it also has more pixels so that could be why you see more light. I wouldn't call it a problem because the majority of the time it's absolutely unnoticeable. Each pixel has so have some sort of voltage to be ready to react to changes. Turning off/on completely each time light is needed might waste battery.
P.S. I'm noob at displays but that's my theory.
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I was curious about this issue as well. It's my understanding that OLEDs do not produce any light in their inactive state.
Regarding your theory, I wonder if it's similar to plasma displays. Even though plasmas are capable of true black (they do not use a backlight) The individual plasma cells have better response times if they aren't fully discharged on blacks. So they have a faint glow that comes from the low power they are using to keep the pixel charged up and ready to go when a color change is needed.
This actually costs a little power though, rather than saving it. So if thats what they are doing, it is for screen quality reasons so that movies and other things look better.
Did some Googling and I couldn't find much information, but there is talk of delivering pre-charge voltage to the OLED pixels to improve response times. So it could be that they are indeed similar to plasma displays in that respect: Capable of true black, but the benefits of not using true black are too good to pass up.
Are you SURE the picture is actually true black? By that i mean pure 100% black in an uncompressed image? If not then you cant expect the phone to display true black. A JPEG of black may not be enough.
My screen it totally off when displaying true black.
I can confirm the screen showing a faint glow on S3 with a true black screen.
Use Firefox with Fullscreen extension (Chrome and the default browser don't seem to have fullscreen mode yet) and go to http://d4f.pf-control.de/black.html
That's rendered on the phone so we can expect it to be the blackest black an app can produce, however in a (very) dark room you'll see a very faint glow coming from the screen and you'll be able to see the black spots (truely black) that people keep complaining about.
The theory about it being a precharge voltage does indeed sound plausible since LED's have a certain reaction time which unfortunately cannot be compensated by e.g. Overdrive as is used in LCD screens.
Note that the S3's "black" is still far better than any LCD.
No mine is still jet black, no light at all.
Go to a COMPLETELY dark room and make sure the screen is actually turned on when on the website (not timed out).
Then take a long-exposure photograph of your phone (still make sure the screen is turned ON!).
I don't have a long exposure camera, but the room is completely dark and my eyes have adjusted, there is no light.
All sgs3 ( as sgs2) screens emit a very week glow on a black pictures ( with the screen on )
Sent from my GT-I9300 using xda premium
It would seem to me that the 'ink spots' many have are not overly dark spots at all, they are what the screen should be. My screen emits no visible light when displaying a true black image, at least nothing my eyes can see, even at the edge of my vision field where light cell are most sensitive. My screen is on maximum brightness.
My screen has no patches, no streaks, no spots, no pink or excessively blue tint. I guess i have a screen thats as near to perfect as they get.
yes there is very faint glow indeed making the screen a bit greyish instead of pitch black
Excuse me if I am being naive but where is real life use would this ever be a negative impact?
jfenton57 said:
Excuse me if I am being naive but where is real life use would this ever be a negative impact?
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no negative impact, but still raises a question "why so?"
jfenton57 said:
Excuse me if I am being naive but where is real life use would this ever be a negative impact?
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I don't think anyone is trying to paint it as an issue that needs to be resolved. It's more of an odd technical mystery rather than a real problem. The blacks are still extremely deep on an AMOLED, just like with Plasma it puts LCD to shame in that department.

Brightness

Ok, so I have my brightness all the way up, and I am still having trouble seeing my screen, and yes, it's bright out, but I don't have it in the direct sun light. I know that my iPhone had no problem with screen being brighter outside. I have the auto brightness disabled. Now, when I bought the phone they put a glass protector on it which is clear, and I also have it in the Otter Box case as well. Could this reduce the brightness? Lastly, if the phone is what it is, then is there an app that will make the display brighter? Thank you so much.
AM
use brighter backgrounds, they will eat up battery a little bit quicker but the brighter colors will actually make the screen brighter. using a black background will cause the screen to produce less overall brightness.
Wow, never gave that a thought. Thank you so much, I appreciate the information. I am off to find a brighter background.
AM
am2354 said:
Wow, never gave that a thought. Thank you so much, I appreciate the information. I am off to find a brighter background.
AM
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If I remember correctly, the screen can get brighter with the auto brightness turned on. Can't remember where I read that, but the thinking was that super bright mode may damage the screen if it's on that way all the time.
Don't forget, Iphone has LCD, we have Amoled, which one of the drawbacks is, it sucks in the sun.
am2354 said:
Ok, so I have my brightness all the way up, and I am still having trouble seeing my screen, and yes, it's bright out, but I don't have it in the direct sun light. I know that my iPhone had no problem with screen being brighter outside. I have the auto brightness disabled. Now, when I bought the phone they put a glass protector on it which is clear, and I also have it in the Otter Box case as well. Could this reduce the brightness? Lastly, if the phone is what it is, then is there an app that will make the display brighter? Thank you so much.
AM
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Try Lux.
https://play.google.com/store/apps/details?id=com.vitocassisi.luxlite&hl=en
ericstephani said:
Try Lux.
https://play.google.com/store/apps/details?id=com.vitocassisi.luxlite&hl=en
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i second Lux
I will give Lux a try thanks.
on top of the auto brigntenss through android, i believe that samsung has a lowe level brightness auto adjustment that changes depending on the image on the screen eg darker when the image is bright and vise versa
waderedsox said:
on top of the auto brigntenss through android, i believe that samsung has a lowe level brightness auto adjustment that changes depending on the image on the screen eg darker when the image is bright and vise versa
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It is called CABC (Content Adaptive Backlight Control).
http://www.ecnmag.com/articles/2010/04/content-adaptive-lcd-backlight-control
I am not sure how Lux behaves with this feature though.

Bland Screen

Check out this picture. My HTC M8 is on the left. New S6 on right. Both turned up to full brightness. My M8 screen looks so much more vivid and colorful. Anybody else seen this issue?
Have you checked your gs6's display settings? I'm curious if this is a hardware issue on your device or if it's just one of the other profiles - make sure it's set to "adaptive".
jdunker26 said:
Check out this picture. My HTC M8 is on the left. New S6 on right. Both turned up to full brightness. My M8 screen looks so much more vivid and colorful. Anybody else seen this issue?
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check to make sure auto brightness did not turn off. For some reason many people, including myself, have seen the auto brightness become automatically unchecked and brightness lowered.
I too came from the M8. I have yet to decide which screen I like more. I love AMOLED blacks and colors, but the screen seems so dim (especially if you've been looking at any other screen) and the whites seem yellow.
Full brightness on recent Samsung flagships is achieved on auto brightness in full sunlight, not in the dark. If you did this outdoors at noon you'd have a different result.
Make sure auto brightness is off and adaptive display is on
I took this picture inside. Auto brightness was off. Adaptive on. No power saving mode on. I can't stand auto brightness on phones. I usually keep my screens around 85-90%. Both S6s are going back and I'm going with the M9 or Nexus 6. Way too many issues with these phones.
Sent from my 831C using XDA Free mobile app
Gatortribe said:
I too came from the M8. I have yet to decide which screen I like more. I love AMOLED blacks and colors, but the screen seems so dim (especially if you've been looking at any other screen) and the whites seem yellow.
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You must have a bad unit or power saving mode going crazy or something. I have the M8 and M9 and the edge screen is night and day brighter. Like not even in the same league brighter and more vibrant. It makes the M9 look dull and lifeless.
Yeah mine is a bad unit too. It's going back tomorrow. I've played with the power saving and all display modes. No go.
jdunker26 said:
I took this picture inside. Auto brightness was off. Adaptive on. No power saving mode on. I can't stand auto brightness on phones. I usually keep my screens around 85-90%. Both S6s are going back and I'm going with the M9 or Nexus 6. Way too many issues with these phones.
Sent from my 831C using XDA Free mobile app
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I have the M9 in my hand right now. Camera is awful and it does have heating issues. Always warm. I do like sense 7 over touchwiz but I can't handle the crappy camera. Look at the photo comparison here http://forum.xda-developers.com/galaxy-s6-edge/general/photos-comparisons-s6-vs-t3076641
jdunker26 said:
Yeah mine is a bad unit too. It's going back tomorrow. I've played with the power saving and all display modes. No go.
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Let me know if it's any different with the new unit. If so, I may have to send mine back too.
So I grabbed a flashlight and turned on auto bright. I put the flashlight over the sensor and the screen got extremely bright. Way more than having the manual setting at it's highest level. Maybe they'll update the software so we can turn the screen up to where we want it.
jdunker26 said:
So I grabbed a flashlight and turned on auto bright. I put the flashlight over the sensor and the screen got extremely bright. Way more than having the manual setting at it's highest level. Maybe they'll update the software so we can turn the screen up to where we want it.
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I can't use Samsung's "auto" mode for brightness. Always too dim for me. I have been using Lux Auto Brightness (paid version although there is a free version you can try) for a long time and I find it does a much better job than any "auto" mode from manufacturers. I think they make it as dim as possible to help with battery stats. But it is pointless if my battery lasts twice as long and I can't see the screen LOL
Thanks. I'll try that.
Sent from my SM-G925P using XDA Free mobile app
Yep, just look at this image:
I really hope there's a hack that gets max brightness without auto brightness. I stay in a dark environment so it always keeps it on the lowest brightness, waaaaay too low, especially compared to my computer. I want the max brightness (I know, I know, bad for eyes, whatever), I mean, that's what the slider should do...
Gatortribe said:
Yep, just look at this image:
I really hope there's a hack that gets max brightness without auto brightness. I stay in a dark environment so it always keeps it on the lowest brightness, waaaaay too low, especially compared to my computer. I want the max brightness (I know, I know, bad for eyes, whatever), I mean, that's what the slider should do...
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try lux auto brightness. You can set your values to what you want in each environment and time of day. Love it for fine tuning how my auto brightness works. The only issue with the edge is the screen does not blur when you swipe out your contacts from the edge. Hopefully they will fix that soon.

Doubt about the green tint issue

Hi,
I'm looking to buy an S10 lite, because here in Brazil it is the best option, since the other Galaxy's are all with Exynos.
However, I have seen a lot of complaints about the green screen problem. Can you tell me if this is a software or hardware problem?
I urgently need a smartphone, but I'm stuck for these reported problems ...
hardware. lots of oleds have this issue to varying degrees. it's only noticable on mine at the absolute dimmest setting and most noticable on mid to dark gray backgrounds. bump up the screen brightness even a hair and it completely disappears. hope that helps
Ive read somewhere it is only in nightmode ( blue light filter ), i cannot confirm if this is true, maybe other users can.
InTheCage said:
Ive read somewhere it is only in nightmode ( blue light filter ), i cannot confirm if this is true, maybe other users can.
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this is incorrect.
I can see it on the bottom of my phone's screen when the color is grey and with low brightness level (5-10%). I rarely use it with that low brightness level, so that doesn't bother me.
InTheCage said:
Ive read somewhere it is only in nightmode ( blue light filter ), i cannot confirm if this is true, maybe other users can.
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I noticed it with no blue light filter enabled. It's happen more often with dark mode because most apps will use grey colors as background, and this color makes the green tint issue visible.
Yeah ive seen it also, i stopped using darkmode because of it. The thing what annoyed me more is the blurr and transformation of the shape when scrolling a grey bar/shape over a blackish background. I found the greys disapointing coming of a cheap phone but with good lcd screen. Watching media was more enjoyable on old phone. Sold it after a week.

Question Is the display really dim for everyone?

I have to keep mine at 90% or above to read the display. At 10% the screen is nearly pitch black. Is everyone else experiencing the same, or do I have a bad display?
I can use mine outside in the sun. I usually stop in shade if I can, but that's because of glare and it's hot down here.
I actually turn on "Extra Dim" at night.
Any chance Extra Dim is on?
LA Beach Geek said:
I can use mine outside in the sun. I usually stop in shade if I can, but that's because of glare and it's hot down here.
I actually turn on "Extra Dim" at night.
Any chance Extra Dim is on?
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It wasn't, but I actually like the color contrast better with it on. I'll leave this on and see if it helps with battery life.

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