Notification light
Seeing Notifications on Always On Display: What AOD Can and Cannot Do
By the llcloud team 5 min read
Quick answer
Always On Display shows small icons for waiting notifications on AMOLED phones, and you can turn it on in your lock screen or display settings. It cannot animate smoothly, because an AOD screen refreshes about once a second. For a bigger, colored AOD notification light, AuraDisplay draws a steady ring around the camera or a glow along the edge on AOD, and stays lit until you read the notification.
Always On Display (AOD) is what replaced the notification LED on most Android phones. It keeps a dim clock and a few icons on screen while the phone sleeps. It is useful, it is free, and it has real limits that most guides skip. Here is how to set it up, what it can and cannot show, and how to get a proper notification light on top of it.
How do I show notifications on Always On Display?
The setting lives in a different place on every brand, and the wording changes between versions. Use these as starting points, or search Settings for "Always on".
| Phone | Where to look |
|---|---|
| Samsung Galaxy | Settings > Lock screen and AOD > Always On Display on recent One UI, Settings > Lock screen on older versions |
| Google Pixel | Settings > Display (or Display & touch on newer Pixels), then Lock screen or Always-on display |
| OnePlus, Oppo, realme | Usually Settings > Wallpapers & style or Display, then Always-On display |
| Xiaomi, POCO, Redmi | Usually Settings > Always-on display & Lock screen |
Once it is on:
- Set it to show always, or for new notifications if your phone offers that. "Tap to show" hides it until you touch the screen.
- Make sure the apps you care about are allowed to show on the lock screen, in Settings > Notifications. AOD follows the lock screen rules.
- If battery saver turns AOD off on your phone, decide which you would rather keep.
Samsung owners have a few more AOD and lighting options, covered in our Samsung notification light guide.
What can Always On Display not do?
AOD shows small grey or tinted app icons under the clock. That leaves gaps:
- The icons are small. You can read them up close, not from across a desk or a room.
- They do not say which notification matters. A shopping app and a message from your partner look alike.
- Some phones time out. On certain modes AOD shows for a few seconds after a tap and then goes dark.
- It needs AMOLED. LCD phones cannot run an always-on screen without draining the battery, so most do not offer AOD at all.
A colored notification light on AOD solves the first two. Edge mode covers phones without a camera cutout, which our edge lighting guide explains.
How do I add a notification light to Always On Display?
AuraDisplay draws its light over the lock screen and AOD. On a phone with a punch hole, pill or notch it wraps the camera in a ring, and on any phone it can glow along the screen edge instead. Each app takes its icon's color, and the light stays until you open or clear the notification.
- Turn on Always On Display using the steps above.
- Install AuraDisplay, grant notification access, and turn on its accessibility service. That is the only way Android lets an app draw over AOD. It reads app names and icon colors only.
- Pick your apps, then lock the phone and wait for a real notification.
AOD support is in the free version. Pro adds quiet hours and an auto-dismiss timer, which are both worth using on AOD.
Why can't AOD animations be smooth?
This is physics, not a missing feature. To use almost no power, an AOD screen drops into a low-power mode and redraws about once a second. Anything that moves would jump from frame to frame, closer to a slideshow than an animation.
Some apps get around it by keeping the full screen awake. That makes animations smooth and drains the battery, which defeats the point of AOD. AuraDisplay takes the other path:
- On AOD the light holds a steady glow.
- Animations like Pulse, Wave and Orbit rest while the screen is off and play again when you wake the phone.
- A new notification can take up to about a second to appear on AOD, because it waits for the next redraw. With the screen on it lights in a fraction of a second.
If anyone promises you smooth animated lights on AOD, ask how they are keeping the screen out of its low-power mode.
Will a notification light burn in my screen?
OLED pixels age a little each time they are lit, and pixels that stay lit in the same place for long stretches age faster than their neighbours. That is why phone makers keep AOD dim and move the clock around. A notification ring or edge glow is another lit area, so it is fair to ask about.
Practical steps that keep wear low:
- Clear notifications you have read. The light goes out when the notification does.
- Use a thin glow. AuraDisplay has a thickness slider for both the ring and the edge.
- Turn on quiet hours (Pro) so the light stays dark overnight, when nobody is looking anyway.
- Use auto-dismiss (Pro) for apps whose notifications tend to sit around for days.
AuraDisplay also shifts its light very slightly over time while on AOD, so the same pixels are not lit for hours. Ordinary daily use is not a concern on modern panels.
Does a light on AOD use much battery?
Very little. On an AMOLED screen, black pixels are off and draw no power, so only the lit ring or edge uses current. AuraDisplay keeps the AOD glow static and does not wake the screen to animate. Pro adds battery-aware intensity, which dims the glow below 30% battery. The bigger cost is AOD itself, which you have already decided to run.
Why does my AOD light stop showing after a while?
If the light worked and then stopped, your phone's battery manager most likely closed the app. A force-stop also turns off the app's accessibility service, and Android does not let an app turn it back on. AuraDisplay sends a notification when this happens so you can fix it in one tap. To prevent it, see why Android kills background apps and the step-by-step guides for Samsung and Xiaomi. For a wider look at all the options, start with our guide to getting a notification light on Android.
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Questions
Why does my Always On Display not show notifications?
Check three things. First, AOD must be on and set to show always or for new notifications, not only when tapped. Second, the app's notifications must be allowed on the lock screen, because AOD follows the lock screen rules. Third, some phones turn AOD off in battery saver or when the phone is in a pocket. The exact options differ by phone maker and version.
Can a notification light animate on Always On Display?
Not smoothly. An AOD panel runs in a low-power mode that refreshes about once a second, so any animation would show as a slow stutter. Apps that claim smooth AOD animation either keep the screen awake, which costs battery, or show a few frames per second at best. AuraDisplay holds a steady glow on AOD and plays its animations when the screen is on.
Does Always On Display cause burn-in?
It can add wear over a long time, because OLED pixels that stay lit age faster than dark ones. Phone makers reduce this by keeping AOD dim and shifting the clock slightly. A notification light adds a small lit area, so keep it thin, clear notifications you have read, and use quiet hours overnight. Short daily use is not a concern.
Does Always On Display work on LCD phones?
No. AOD relies on an AMOLED or OLED screen, where black pixels are switched off and use no power. An LCD lights the whole panel from behind, so an always-on screen would drain the battery. On an LCD phone a screen light can only show when the screen is on, for example on the lock screen after you tap it.
How fast does a notification appear on AOD?
Usually within about a second. Because the AOD panel refreshes about once a second, a new light can wait up to that long before the screen draws it. With the screen on, AuraDisplay lights within a fraction of a second. If a light takes much longer than that, the app may have been closed by your battery manager.
