Black screen at night? - Xperia Z3 Compact Q&A, Help & Troubleshooting

So just like many of you guys I came over to the Z3c from the Moto X. One of the things that I loved about the Moto X was the perfectly black screen for a bedside clock.
I don't know if it's a difference in the screen technology or if I'm just daft , but I can't find a way to do the same thing on the Z3c. No matter what I set or which app I've tried the screen is still a very bright backlit black color at night. Even without any clock numerals it's too bright.
Anyone have some insight ( pun intended) for me?
Thanks!!

Like most phones, the Z3C is IPS. When the screen is on, the backlight is on. The filter tries it's best to block light when you want things black. There is nothing you can do about it other than lowering brightness, but the clock will be dim also.
The Moto X is AMOLED. In AMOLED, there is no backlight.

Related

[Q] Anyone have NoLED working on Nook?

I installed NoLed on my nook to get visible notifications when receiving email but it doesn't seem to work. Just wondered if anyone had it working and if there was a trick to getting it working?
Thanks!
Isn't that app made for (AM)OLED displays that don't need power to display a black screen?
Using this on an LCD screen would be completely pointless as having the homescreen visible could actually consume less power than a black screen with a tiny color dot
Nope. Used for notifications for those of us who do not have pretty lights. Looks like a cool app for NC peeps.
We are talking about this app here, right?
http://forum.xda-developers.com/showthread.php?t=730692&highlight=lcd
I know what it is used for, I just think it's pointless in terms of power consumption. As I said AMOLED screens require no power to display black. So only the pixels used to display the "notification led" consume power.
Doing the same on an LCD screen would require the backlight to be on all the time AND having the screen 99% black. You can not waste more power with an LCD display. That's why I said a visible homescreen could actually be more battery-friendly than this app. But please correct me if I'm wrong. I'm just writing down what I gathered about different display types
Looks like you're both right--it was made to take the place of a dedicated LED indicator on a phone that had none but did have an OLED screen. It probably works on LCD, but, as pointed out, consumes lots of power as it wasn't intended for that display type.
To make it work, your LCD and backlight would have to be set not to turn off, it seems (not sure--maybe it can wake it, but I see no mention of using it with an LCD on the linked page or the FAQ).
Bad........

Burn in? Life span of p-oled always on?

I just got the amazing lg g watch r. Very satisfied with it. I am just trying some watch faces and i found this great one for example:
https://play.google.com/store/apps/details?id=net.ddroid.aw.watchface.rf03
Very happy with it but I wonder....
How real is the danger for screen burn ins? This watch face has for example a green background in ambient mode. I keep the brightness as low as possible, but still readable (great thing of this watchface is that you can set the brightness of ambient and active mode as low or as high as you want) but still the oled screen will always be green..
Is this healthy for this kind of screen? Of course I can turn off the green background and have it black and white in ambient mode, but I like the effect of the screen being dimmed and going to brighter green when twisting my wrist.
But I don't want the screen to go to waste already after a while... anybody have a theory?
What is ambient mode? people keep mentioning it. This watch has no light sensor.
seepage said:
What is ambient mode? people keep mentioning it. This watch has no light sensor.
Click to expand...
Click to collapse
I mean the standby mode with dimmed screen. Not screen off.....
Sent from my SM-N910C using XDA Free mobile app
If you want to use the "always on" feature w/o worries, green is the colour you want.
Greem OLED compund has 3 chracteristics that makes it the best choice:
- most visible light from the whole spectrum (for the human eye, that is): this mean you need a very low brighness level in order to see it (power and burn-in safe)
- the most power efficient sub-pixel (1.5 times as economic as red and 2.5 to 3 times ore econmic than blue).
- the most resilient (lowest degradation over time, twice compared to red and 4 times compared to blue).
So, if you like always-on display and you wnat the most out of your watch, green is the choice for AMOLED screens.
**** note: the numbers above are a synthesis from specialised web-sites as well as from my own measurements with OLED screens (Samsung models at least). ****
well, green is the "best" color to display on OLED screens - but black (=pixels are off) would be way better regarding burn-in and battery
It seems that the watchface you linked has a black mode with green font as well - use that one in ambient mode and you should be good
2k4ever said:
well, green is the "best" color to display on OLED screens - but black (=pixels are off) would be way better regarding burn-in and battery
It seems that the watchface you linked has a black mode with green font as well - use that one in ambient mode and you should be good
Click to expand...
Click to collapse
Yeah, this seems the safest option to me too. But the effect is not as nice of course when the screen becomes active. Colors get inverted when the screens goes bright. The effect is cooler when the dimmed green background goes bright, like you turn on the backlight
But I'll stick with the safe option for now, I just don't trust it
Sent from my SM-N910C using XDA Free mobile app
I thought blue was the easiest to see, hence its used on police cars and ambulances.
Bring up Google now and ask this: "OK Google, what is the most visible colour to the human eye?"
See what it will answer and post here
// sent from my phone //
ro_explorer said:
Bring up Google now and ask this: "OK Google, what is the most visible colour to the human eye?"
See what it will answer and post here
// sent from my phone //
Click to expand...
Click to collapse
Yellow
I was actually curious to see if anyone will search ... GJ.
What is yellow made of in RGB world (AMOLED is RGB)? : RED + GREEN.
What is closer to yellow (in terms of wavelenght), red or green? : GREEN ...
That why, the most visible pure colour of the RGB matrix is green ... which happens to be the most economical one to use. Double win
Sure would be nice if it had a proximity sensor, so it could turn off the screen when inside my sleeve. I figure that would pretty much solve the problem for me.
That would definitely be a plus ... but the question is: where to place such a sensor w/o breaking the design? Moto 360 solution is not on everyone's liking.
glenner05 said:
I just got the amazing lg g watch r. Very satisfied with it. I am just trying some watch faces and i found this great one for example:
https://play.google.com/store/apps/details?id=net.ddroid.aw.watchface.rf03
..
Click to expand...
Click to collapse
I was liking this watch face, till I purchased and realized it has everything except the "current" temperature...
Where does gray fall on the color burn in scale?
Sent from my HTC One using Tapatalk

[Q] White Balance on Display Changes when rotated

Just got my Moto X today. The whites seem warm to me, is this a property of the display? I noticed that when I tilt the screen away or towards the whites turn balanced white, but back to warm when its straight on. Is there a problem with my unit?
Also, side question: is there a way to disable the gyro activating active display? I have the IR sensor thing in Moto shut off. I have one of those hanging guys to hold my phone in the car, so the phone is constanting turning on when I turn or cause it to swing.
Mondos said:
Just got my Moto X today. The whites seem warm to me, is this a property of the display? I noticed that when I tilt the screen away or towards the whites turn balanced white, but back to warm when its straight on. Is there a problem with my unit?
Also, side question: is there a way to disable the gyro activating active display? I have the IR sensor thing in Moto shut off. I have one of those hanging guys to hold my phone in the car, so the phone is constanting turning on when I turn or cause it to swing.
Click to expand...
Click to collapse
The screen is just like that, unfortunately. I've seen 6 of them, and they are all like that. It's pretty much my only complaint about the phone.
As far as Moto Display is concerned, you can turn it off completely in settings or in the Moto app, but I don't think you can disable that particular feature of it.

Non-uniform intensity across screen at low-brightness settings?

Hi,
Has anyone notciced un-even brightness across the screen at low light levels (for darker colors)? I thought it was just the nature of these OLED screens, but I don't see this with Galaxy Phone with similar display type, so I'm wondering if I just have a defective unit with bad display.
To test it:
- Do this at night (when ambient light is fairly low).
- Lower brightness down to the lowest setting (turn off auto-brightness)
- Open Chrome browser, and close all tabs, so that you get a blank dark screen with just the "+" icon. This leaves a dark gray background, just enough to notice if there is any uneveness in brightness.
On my unit, I see about 3-4 inches of bands/streaks of darker areas at bottom half of the screen. If I rotate the tablet, the darker areas stay in their physical location (so these bands become vertical instead of horizontal), so I know it's not a software issue.
I have a couple of weeks left before I need to decide on whether to exchange the tab, so would appreciate if anyone can help me verify if this is normal thing with these screens.
Many thanks, Tony.
tonyc1 said:
Hi,
Has anyone notciced un-even brightness across the screen at low light levels (for darker colors)? I thought it was just the nature of these OLED screens, but I don't see this with Galaxy Phone with similar display type, so I'm wondering if I just have a defective unit with bad display.
To test it:
- Do this at night (when ambient light is fairly low).
- Lower brightness down to the lowest setting (turn off auto-brightness)
- Open Chrome browser, and close all tabs, so that you get a blank dark screen with just the "+" icon. This leaves a dark gray background, just enough to notice if there is any uneveness in brightness.
On my unit, I see about 3-4 inches of bands/streaks of darker areas at bottom half of the screen. If I rotate the tablet, the darker areas stay in their physical location (so these bands become vertical instead of horizontal), so I know it's not a software issue.
I have a couple of weeks left before I need to decide on whether to exchange the tab, so would appreciate if anyone can help me verify if this is normal thing with these screens.
Many thanks, Tony.
Click to expand...
Click to collapse
I have notice a similar thing, mostly on gray - dark gray backgrounds, and not necessarily at lowest brightness (low enough though). I wanted to check about it on a couple of devices on display at retail stores but it's hard to test there.
Sent from my SM-T815 using Tapatalk
Hi tonyc1,
Having had 4 of these I can confirm that this unevenness is normal on the 9.7" screen but was not present on the 8" model.
I went through 4 to get one that was reasonably even, 2 of them were pretty awful to the point that the greyscale was all over the place.
The unit I settled on has a slightly darker band in the middle of the screen and a slight darkening at the very top.
I owned the original tab s 10.5 and have to say the screen on that was more even and detailed, I prefer the former factor and speed of this S2 but the screen is a step backwards.
Hope this info helps.
Cheers
Thanks for the notes and confirming this is a somewhat common issue. I guess I will live with it for now..

Black screen doesn't turn off pixels

Hi everyone, as you should know the Asus Zenwatch 3 has an AMOLED display. From my understanding this should mean when displaying the colour black, the pixels should be turned off completely (like on my S7 Edge).
I was looking at my watch in a pitch black room with an ambient watch face displaying a black background and it appeared slightly reddish. Compared with my LG G Watch R sporting the exact same watch face it was clear the LG had the black pixels turned off but not on my Zenwatch 3.
I've attached a couple of pictures taken with my phone of the Zenwatch 3 in a pitch black room, one with normal shutter speed and the other with a 2 second shutter speed. Evidently the 2 second shutter speed shows that the display is in fact not turning off the pixels. The pics were taken when the watch was charging and in ambient mode with a watch face set to true black only.
Can anyone else confirm that this is the case and maybe a reason why? I'm worried that battery life may be affected by this with always on display enabled.
Lastly on a side note, are the black lines that aren't illuminated something to worry about?
Mine is the same, including a similar set of dark lines. I've seen others on Reddit report identical concerns.
frelnik said:
Mine is the same, including a similar set of dark lines. I've seen others on Reddit report identical concerns.
Click to expand...
Click to collapse
Noticed this too, thought I was crazy lol...kinda waste of an AMOLED screen.
Hmmm ok at least I'm not the only one. Hopefully Asus is able to change it in a future update.
Yeah it is weird, black watch faces aren't truly black. I think they did it so watch faces can blend into the color scheme of the watch, if you notice the color overlay on the app launcher
That's because of auto Brightness. Turn it off. This impacts battery life. I observed this on very first day after the purchase. Using manual Brightness since then.
deathgame said:
That's because of auto Brightness. Turn it off. This impacts battery life. I observed this on very first day after the purchase. Using manual Brightness since then.
Click to expand...
Click to collapse
I just tried disabling Auto Brightness but the red tinge of the black background still exists.
blackhand64 said:
I just tried disabling Auto Brightness but the red tinge of the black background still exists.
Click to expand...
Click to collapse
It doesn't happen with me. If I turn off auto Brightness the blacks go complete black. Do you have live display turned on your phones? If so try disabling it. May be this setting depends on your phone. All I can confirm is if I turned auto Brightness off amoled works perfectly.
deathgame said:
It doesn't happen with me. If I turn off auto Brightness the blacks go complete black. Do you have live display turned on your phones? If so try disabling it. May be this setting depends on your phone. All I can confirm is if I turned auto Brightness off amoled works perfectly.
Click to expand...
Click to collapse
Not sure what you mean by live display but I just have a stock S7 Edge. I prefer keeping the auto brightness on for my watch so I guess I'll have to live with it.
blackhand64 said:
Not sure what you mean by live display but I just have a stock S7 Edge. I prefer keeping the auto brightness on for my watch so I guess I'll have to live with it.
Click to expand...
Click to collapse
Live display is when some ROMs allow the screen to have a tint at night time so the blue light from the screen won't affect your eyes at night
Me too have similar display and black line like that.
Glad I'm not the only one with this condition.
I also have those black lines, was about to get a replacement but since I'm not the only one and it doesn't affect overall performance or aesthetics its fine.
Yeah I have also black lines and screen is not completely dark with totally black watch faces
Turning off the auto brightness is not a solution. Its a pain if you had to adjust the brightness all the time

Categories

Resources