While browsing this, I discovered a possible solution to replace LED notifications. I believe a little more than 9 pixels would be fine however, maybe it pongs around the screen like a screensaver.
The good thing about AMOLED screens is that when a pixels display a true black color (#000000) it's actually completely turned off that pixel, in fact displaying true 480x800 black image on the SGS screen resemble turning the screen off. so i was thinking what if the screen was completely black except for few pixels in the coroner that are green to indicate miss calls, the screen will only consume power to keep these few pixels on, the rest of pixels will not consume any power.
To demo this, i made this 480x800 image with all pixels black except for 9 green pixels on the top left corner, you can save it and try it in your SGS full screen, as for the power consumption, the screen have a total of 480x800=384000 pixels, of which only 9 is on, so 9/384000=0.002% of the screen power only consumed to keep these 9 pixels on.
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brilliant! thats so smart, how do you set this to show up tho? is there a setting for this? or would it require mods?
Sounds great but I guess it'll require mods.
But he's wrong when saying "black is like display off" since there's still the backlight which uses battery
Edit // or am I wrong? http://forum.xda-developers.com/showthread.php?t=706640
I think u r wrong. .. I remember. Reading that old have no backlight. That is why they save power over conventional displays.
AMOLED doesn't have a back light.
It has True blacks. I.E. when displaying the black color, it just doesn't turn on.
LCD's, to be visible, need a backlight/sidelight.
Yea but in that case would'nt it need a back light to illuminate the 9 bright pixels??
OLED displays are made up of tiny organic LEDs (light-emitting diodes), so each subpixel emits its own light - the display is black when they're off. Different amounts of light emitted from the different colour subpixels gives a pixel with an overall colour. So if only 9 pixels are lit, only those 9 pixels are consuming power. This also means that brighter and whiter images use more power.
This is in contrast to a LCD, where there's a backlight that makes the entire display white when all the subpixels are off. Liquid crystal subpixels block the light to varying degrees in order to produce the image; each subpixel has a red, green or blue filter to produce colour. Therefore the image is subtractive from a white background. The power consumption doesn't really vary depending on the image being displayed, because the backlight is always on over the whole screen.
However, I don't know if the CPU would be able to sleep with the display "on", even if the display itself isn't consuming much power.
Nope. Only the nine pixels will be switched on. No backlight involved.
Mithent said:
However, I don't know if the CPU would be able to sleep with the display "on", even if the display itself isn't consuming much power.
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Click to collapse
Hmmmm good point. Maybe in slo-mo power saving mode ;p
I prefer if the menu and back buttons would flash
Will.1 said:
Hmmmm good point. Maybe in slo-mo power saving mode ;p
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Click to collapse
Well, lets see if it does. Besides a few circuits keeping the screen ready, I don't think the display will use much power. To test we can try this and note the battery change with this on and find the delta battery percentage over time ratio and again with the screen off. I think the CPU will go idle if the display is not doing anything.
hmj2k3 said:
I prefer if the menu and back buttons would flash
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Click to collapse
Me too, but this is just another way if that fails. I don't know if anyone has tried to do this yet.
Related
A friend who just got an EVO a few weeks ago suddenly has a red LED lit continuously when the phone is on. Everything seems to be working correctly. The LED does occasionally blink off, but is on most of the time. Tried rebooting and changing a few settings. His EVO is completely stock, no root (yet).
Anyone know what this is about?
Couldn't honestly say. Probably its a bug in the stock Rom. Once he root and flash a custom Rom , it may go away
-Warm 2.2 RLS4+Ziggy Makes My HTC *ILLY* {Quad 1600plus/MFLOPS 37.309 In 2.25 Secs}
r0cky.Da.3v0.SU.-
if its on the right side of the earpiece speaker then thats the 4G notification led
let me know what side
When looking at the front of the phone, it's on the left side of the earpiece. It's the same (or very close to) the green/amber Power LED.
I was looking at my friend's EVO again tonight- I noticed that the red LED that's appearing is right below the green/amber POWER LED. It's hard to see the actual colors, but I took the picture to show location. The LED on top is amber [charging]. The one immediately below it goes off when the screen is off, but is otherwise on all the time.
Has anyone ever seen this before?
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Trident said:
I was looking at my friend's EVO again tonight- I noticed that the red LED that's appearing is right below the green/amber POWER LED. It's hard to see the actual colors, but I took the picture to show location. The LED on top is amber [charging]. The one immediately below it goes off when the screen is off, but is otherwise on all the time.
Has anyone ever seen this before?
Click to expand...
Click to collapse
Thats the light sensor when you make a call and you put it to the face it turns off your screen when your talking that phone maybe came defective
Edit: it's the infrared proximity sensor... Never been so disappointed...
I have a 4G model, europe, xt1039, running stock 4.4.4, and I noticed something while chatting on hangouts in the dark: there is a red led to the right of our speaker!!!
What is weird is that it doesn't light up unless I am in a hangouts conversation (not conversation list or the app, you need to enter a conversation).
Can someone else try and confirm? Note, it is very dim, make sure you are in complete darkness and brightness is minimum.
Steps to reproduce:
1. Go in a dark, black room and set brightness to minimum.
2. Go in hangouts and open a conversation, a red dim light should show up to the right of the speaker (the other side from the led light)
Edit, got pictures. (But it's actually dimmer than in the pictures)
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I invite you to read these tips from @matmutant to go further.
http://forum.xda-developers.com/showthread.php?p=57006196
Sent from my Moto G using XDA Free mobile app
vlt96 said:
I have a 4G model, europe, xt1039, running stock 4.4.4, and I noticed something while chatting on hangouts in the dark: there is a red led to the right of our speaker!!!
What is weird is that it doesn't light up unless I am in a hangouts conversation (not conversation list or the app, you need to enter a conversation).
Can someone else try and confirm? Note, it is very dim, make sure you are in complete darkness and brightness is minimum.
Steps to reproduce:
1. Go in a dark, black room and set brightness to minimum.
2. Go in hangouts and open a conversation, a red dim light should show up to the right of the speaker (the other side from the led light)
Edit, got pictures. (But it's actually dimmer than in the pictures)
Click to expand...
Click to collapse
I believe that's the proximity sensor. Used to sense when you put the phone to your ear so the phone can turn the screen off. Why you are seeing it - I don't know - it's infrared.
vlt96 said:
I have a 4G model, europe, xt1039, running stock 4.4.4, and I noticed something while chatting on hangouts in the dark: there is a red led to the right of our speaker!!!
What is weird is that it doesn't light up unless I am in a hangouts conversation (not conversation list or the app, you need to enter a conversation).
Can someone else try and confirm? Note, it is very dim, make sure you are in complete darkness and brightness is minimum.
Steps to reproduce:
1. Go in a dark, black room and set brightness to minimum.
2. Go in hangouts and open a conversation, a red dim light should show up to the right of the speaker (the other side from the led light)
Edit, got pictures. (But it's actually dimmer than in the pictures)
Click to expand...
Click to collapse
To what i've seen about this, this is the proximity sensor that is on (I head previously seen it when using AcDisplay and its active mode that uses proximity sensor to wake the screen)
To reproduce screen off: use AcDisplay and enable active mode
Yep I see it on mine too - nothing to worry about
dominati said:
I believe that's the proximity sensor. Used to sense when you put the phone to your ear so the phone can turn the screen off. Why you are seeing it - I don't know - it's infrared.
Click to expand...
Click to collapse
This is mostly infra red, but in our case there are some deep red leaking too, that we can (hardly) see
Oh, it goes on in CPU Z too, but why is it there in hangouts?
vlt96 said:
Oh, it goes on in CPU Z too, but why is it there in hangouts?
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hangouts allows you to make voip calls, so of course it uses the sensor
don't know if it's normal for it to be active in a SMS/message.
LOL OP!
That's your proximity sensor.
Anon321 said:
LOL OP!
That's your proximity sensor.
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Click to collapse
When my other 2 phones don't do that, I got surprised (checked my S3 mini, it doesn't have the infrared visible)
Yup even on my moto e...i noticed red light quite often..
Sent from my XT1022 using XDA Free mobile app
vlt96 said:
When my other 2 phones don't do that, I got surprised (checked my S3 mini, it doesn't have the infrared visible)
Click to expand...
Click to collapse
Don't compare apples to oranges.
Mine is Moto G 4G. I can see it too. As for Samsung I don't know, nor do I like their phones.
Do you know how I am communicating with my phone directly with its amazing features.
I usually don’t always carry cell phones in my hands all the time but my phone is very smart and it will notify me for messages, missed calls etc.
Just you need to enable your LED service indicator
Step 1: Go to Settings.
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Step 2: Click on Display Option.
Step 3: Enable LED indicator option.
It will alert you with a blinking light every time you receive a text message.
See How LED indicator is working on Honor 5X
LED indicator displays light on the top of your device. Whenever my phone is locked or my phone’s LCD is off, it indicates a different light.
The various Colors are easily explained:
• Blue
1) Blinks blue for a message, or other notification.
• Red
1) Glows red when the device is connected to a charger and is charging.
2) Blinks red when the battery is low( < 10%)
• Yellow
1) Glows Yellow when the device is connected to a charger and the battery is aroud 50% charged.
• Green
1) Glows green when the device is connected to a charger and the battery is fully charged( > 90%).
2) Blinks Green when you miss a call.
vsriram92 said:
Do you know how I am communicating with my phone directly with its amazing features.
I usually donâ??t always carry cell phones in my hands all the time but my phone is very smart and it will notify me for messages, missed calls etc.
Just you need to enable your LED service indicator
Step 1: Go to Settings.
Step 2: Click on Display Option.
Step 3: Enable LED indicator option.
It will alert you with a blinking light every time you receive a text message.
See How LED indicator is working on Honor 5X
LED indicator displays light on the top of your device. Whenever my phone is locked or my phoneâ??s LCD is off, it indicates a different light.
The various Colors are easily explained:
â?¢ Blue
1) Blinks blue for a message, or other notification.
â?¢ Red
1) Glows red when the device is connected to a charger and is charging.
2) Blinks red when the battery is low( < 10%)
â?¢ Yellow
1) Glows Yellow when the device is connected to a charger and the battery is aroud 50% charged.
â?¢ Green
1) Glows green when the device is connected to a charger and the battery is fully charged( > 90%).
2) Blinks Green when you miss a call.
Click to expand...
Click to collapse
Thanks
I just got a replacement V20 from T-Mobile because my old one was having huge noise reduction problems with the camera. The replacement has a lot less noise reduction, but it also has another problem.
The second screen on my old phone, when it's acting as an AOD, will properly adjust to ambient brightness (and even follow the brightness adjustments from Lux). The new phone, however, will keep the AOD at the same brightness level as when it was on, but only for a few seconds. After that, it goes to full brightness. If I put my hand about an inch over the light sensor (so I don't turn off the AOD), it'll go dim. It seems to have only two levels: 0% and 100%. It doesn't go anywhere in between.
Using Lux, system auto, manual brightness, whatever, has no effect: the second screen still will go full bright or full dark, depending on how bright the room is. Has anyone else experienced this? Is there maybe a fix? It's driving me crazy.
Yep. My LG V20 second screen adjst the brightness too. In dark place , the brightness go down.
Fz'Rot said:
Yep. My LG V20 second screen adjst the brightness too. In dark place , the brightness go down.
Click to expand...
Click to collapse
I don't think you understood. The issue isn't that it adjusts; I'd expect it to do that. The issue is that it's only ever off, at 0% brightness or at 100% brightness.
Zacharee1 said:
I just got a replacement V20 from T-Mobile because my old one was having huge noise reduction problems with the camera. The replacement has a lot less noise reduction, but it also has another problem.
The second screen on my old phone, when it's acting as an AOD, will properly adjust to ambient brightness (and even follow the brightness adjustments from Lux). The new phone, however, will keep the AOD at the same brightness level as when it was on, but only for a few seconds. After that, it goes to full brightness. If I put my hand about an inch over the light sensor (so I don't turn off the AOD), it'll go dim. It seems to have only two levels: 0% and 100%. It doesn't go anywhere in between.
Using Lux, system auto, manual brightness, whatever, has no effect: the second screen still will go full bright or full dark, depending on how bright the room is. Has anyone else experienced this? Is there maybe a fix? It's driving me crazy.
Click to expand...
Click to collapse
You say that you're using Lux, but what sounds like an issue to me is that you also say that you've tried the stock auto brightness and the screen still doesn't work right. Mine (ATT version) works with both stock auto and with Lux.
I'm wondering if something is wrong with the phone?
Try these settings in Lux though. Mine is working with Lux, so maybe duplicating my settings will at least be a start.
(See pics)
BRIGHTNESS SECTION
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NIGHT/ASTRO MODE
SUNSET LOCATION
I don't think these will affect anything
SAMPLE COLLECTION
ADVANCED
Let me know if these help.
Otherwise, something else is going on like maybe another app is somehow interfering or (worse case) the sensor on the phone is broken.
EDIT
Oh and the second screen brightness with Lux and the system's auto brightness both depend on the actual screen brightness settings for that light level. So in Lux, if your bedroom light brings the main screen to 50% brightness, then when the main screen is off, the second screen will set to 50% as well.
I also forgot to mention that Lux is set to. Adjust Dynamicaly and using the Smart profile (this is in the notification drawer pull down)
Sent from my LG-H910 using Tapatalk
spexwood said:
You say that you're using Lux, but what sounds like an issue to me is that you also say that you've tried the stock auto brightness and the screen still doesn't work right. Mine (ATT version) works with both stock auto and with Lux.
I'm wondering if something is wrong with the phone?
Try these settings in Lux though. Mine is working with Lux, so maybe duplicating my settings will at least be a start.
(See pics)
BRIGHTNESS SECTION




NIGHT/ASTRO MODE
SUNSET LOCATION
I don't think these will affect anything
SAMPLE COLLECTION


ADVANCED



Let me know if these help.
Otherwise, something else is going on like maybe another app is somehow interfering or (worse case) the sensor on the phone is broken.
EDIT
Oh and the second screen brightness with Lux and the system's auto brightness both depend on the actual screen brightness settings for that light level. So in Lux, if your bedroom light brings the main screen to 50% brightness, then when the main screen is off, the second screen will set to 50% as well.
I also forgot to mention that Lux is set to. Adjust Dynamicaly and using the Smart profile (this is in the notification drawer pull down)
ADVANCED



NIGHT/ASTRO MODE
SUNSET LOCATION
I don't think these will affect anything
SAMPLE COLLECTION


ADVANCED



Let me know if these help.
Otherwise, something else is going on like maybe another app is somehow interfering or (worse case) the sensor on the phone is broken.
EDIT
Oh and the second screen brightness with Lux and the system's auto brightness both depend on the actual screen brightness settings for that light level. So in Lux, if your bedroom light brings the main screen to 50% brightness, then when the main screen is off, the second screen will set to 50% as well.
I also forgot to mention that Lux is set to. Adjust Dynamicaly and using the Smart profile (this is in the notification drawer pull down)

Click to expand...
Click to collapse
Thank you for the help, but it's just barely too late. The phone decided that it was going to behave all of a sudden, with no action from me.
May I know how to get into lux settings?
Sent from my LG-H990 using Tapatalk
desztan said:
May I know how to get into lux settings?
Click to expand...
Click to collapse
Open the app and press the giant settings gear.
Zacharee1 said:
Open the app and press the giant settings gear.
Click to expand...
Click to collapse
What app?
desztan said:
What app?
Click to expand...
Click to collapse
The Lux app?
Zacharee1 said:
Thank you for the help, but it's just barely too late. The phone decided that it was going to behave all of a sudden, with no action from me.
Click to expand...
Click to collapse
So it fixed itself?
... Or did the phone break!?!?
Sent from my LG-H910 using Tapatalk
---------- Post added at 08:52 PM ---------- Previous post was at 08:51 PM ----------
desztan said:
What app?
Click to expand...
Click to collapse
The apps is called Lux Dash
Sent from my LG-H910 using Tapatalk
spexwood said:
So it fixed itself?
... Or did the phone break!?!?
Click to expand...
Click to collapse
Fixed itself. Nice and dim now, just how I like it.
spexwood said:
So it fixed itself?
... Or did the phone break!?!?
Sent from my LG-H910 using Tapatalk
---------- Post added at 08:52 PM ---------- Previous post was at 08:51 PM ----------
The apps is called Lux Dash
Sent from my LG-H910 using Tapatalk
Click to expand...
Click to collapse
What does lux dash app do?
Sent from my LG-H990 using Tapatalk
desztan said:
What does lux dash app do?
Sent from my LG-H990 using Tapatalk
Click to expand...
Click to collapse
Why don't you open it and take a look?
desztan said:
What does lux dash app do?
Sent from my LG-H990 using Tapatalk
Click to expand...
Click to collapse
It controls the app called Lux.
But yeah, open it and take a look.
I'm in the same position as OP my second screen and navigation bar doesn't dim with LUX. Someone please help me.
I can only see it on white background normally when i hold the device and is more noticible when slide the phone:
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Same here
I can notice it always on white or very light background while i normally hold it its barely visible but as i slide om one side it dissapiers and it shows more on the other side can anyone tell me is this normal or defect..
I also noticed a pink hue with white background if screen is tilted more than
30 degrees...
Normal. Been this way since S8/N8. You won't notice the effect with dark themes.
Could it be the pre-installed screen protector?
Modern AMOLEDs will shift colours when not at optimal angles, they're intended to be used perfectly parallel to your view, that's perfectly normal and won't be fixed until MicroLED becomes real on mobile.
Besides that, I suggest you to enable vivid mode and choose a white temperature of your taste, you'll find the ideal white being closer to the blue end, but that works directly against the embedded blue-light filter of this generation and can disturb your health.
Seems normal...
Just 1 reason why the curves are useless and annoying
This is normal. I remember on my S8 there was an option to adjust the hue/color of the screen edge areas... I cannot seem to find it on my S10+ though.
I thought all of this was normal as well until I did an exchange. I had the purple/pink shift at even the slightest angle and the discolored edges. I exchanged my phone for a later production date model and my screen is as perfectly balanced as it gets. I highly suggest an exchange if you can notice the shift
TheAnarchist1 said:
I thought all of this was normal as well until I did an exchange. I had the purple/pink shift at even the slightest angle and the discolored edges. I exchanged my phone for a later production date model and my screen is as perfectly balanced as it gets. I highly suggest an exchange if you can notice the shift
Click to expand...
Click to collapse
I have tested all phones at our restores and they also shifted a bit to a tint of grey-green color. Wouldn't say blue, but sometimes can our eyes see it as that. However, purple/pink tint as it happened to you its completely different than what the guy here asked for. And if it occurs, then yes. Change your phone. Otherwise it's all normal. I've been tested like 11 phones and every one of them including mine has that.
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its the angle at which the edge falls down to. its like a prism instead of white light your getting the next color on the color wheel white blue cyan green yellow orange and red. if you look at the edge without looking at the phone straight down you see the change from blue to white as you move the phone to the edges
SO long as it's not green you're good to go.
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