Develop Bugs

Change SLCD screenfor AMOLED?

Just wondering if the motherboard on a SLCD Desire can support an AMOLED screen. I know the possibility is low, but it would be nice to get a new screen with potential battery savings.
Sent from my HTC Desire using XDA App

AFAIK Amoled is not better in battery efficiency comparing with SLCD... it has better blacks & colors but eats slightly more battery, correct me if i'm wrong.
(i have Amoled)

Oh, I was under the impression that using dark themes would turn the black pixels completely off, saving battery life, and having the darker blacks you speak of. If it doesn't save on battery, it would still be nice to have deeper blacks, I like change just for the sake of change lol
Sent from my HTC Desire using XDA App

Palmtree82 said:
Oh, I was under the impression that using dark themes would turn the black pixels completely off, saving battery life, and having the darker blacks you speak of. If it doesn't save on battery, it would still be nice to have deeper blacks, I like change just for the sake of change lol
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
You're right. Pure black pixels are off. Because led emit their own light and lcd are back lit, amoled screens are more battery efficient. However you cant put an amoled screen on a mainboard for an slcd
Sent from my HTC Desire using XDA App

Thanks! That's all I needed to know
Sent from my HTC Desire using XDA App

Sensitive eyes and black levels

I just picked up a Galaxy Nexus from WIND Mobile.
I have to say, the one thing I dread the most about AMOLED is the black/bright contrast. My eyes are very sensitive, and whenever I see something bright against an intensely dark background I get halos and it's very difficult to focus. For this reason I prefer LCD screens where the blacks are slightly grey. Nonetheless I decided to make the leap to the GNex because I like a lot of other things about it.
Do you think there is any sort of hack that could make the AMOLED look a bit more like an LCD? I realize this would affect battery life but basically what I'd like is to hack the colour space so that black becomes maybe 1-5% grey. I remember on CM7 there were hacks that could apply filters to make white into a more salmon-pinkish hue, a warmer white, etc. What I'm looking for is the reverse - leave the white alone but make the blacks greyer.
Anyone think this might be possible?

I don't know a specific solution, but here are some options:
If you're rooted, francois kernel and app can adjust the Gama levels, affecting all colors, but may help.
App Log graph can adjust your auto brightness levels.

Yes I am rooted.
Does increasing the gamma change the black levels? If so that could help.
Sent from my Galaxy Nexus using Tapatalk

The black on my phone at highest brightness is a little bit grey..
Sent from my Galaxy Nexus using xda premium

tcchuin said:
The black on my phone at highest brightness is a little bit grey..
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
It seems to depend on the app. Some apps have a gentle dark grey gradient in the background. But the stock taskbar, even at full brightness, is just as black as the same part of the screen is when the screen is off.

Not trying to be a comedian here, but have you gotten your eyes checked lately?
Seeing halos is linked to several severe eyediseases or wearing wrong/none correction.

+1. Yup.
Sent from my Galaxy Nexus using XDA App

Streaker said:
Not trying to be a comedian here, but have you gotten your eyes checked lately?
Seeing halos is linked to several severe eyediseases or wearing wrong/none correction.
Click to expand...
Click to collapse
Fair enough. Optometrist says my eyes are healthy but I have large pupils that don't contract very efficiently. As a result I get halo effects at high contrast even when using proper vision correction. It's not something that poses a health threat otherwise. But he did advise me strongly against laser eye surgery as there would be a high risk of halos getting worse.
So that's me in a nutshell.
Sent from my Galaxy Nexus using Tapatalk

Super dim is a root app and it can lower the brightness below the normal values
Sent from my Galaxy Nexus using xda premium

ChongoDroid said:
Super dim is a root app and it can lower the brightness below the normal values
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I'm not looking to lower the brightness - I know how to do that already. I'm looking to decrease the contrast by making the black levels greyer.
Sent from my Galaxy Nexus using Tapatalk

SCREEN FILTER: Dim/Darken Screen app

I read this up yesterday and wanted to post it here too for those who don't know about the app yet. "Smart Filter".
This app is magnificient in that it doesn't tweak hardware functions, but it applies a dark layer. Thus making it work wonderfully with the OLED screens (Apparantly OLED can only be dimmed to a certain extent).
This app is fantastic for reading, viewing videos or taking notes at night. Also awesome for using your phone in the theatres (I guess?).
Once again, app is called: Screen Filter
https://play.google.com/store/apps/...utm_medium=organic&utm_term=screen+filter+app
Sent from my SGH-I317M using xda app-developers app

i use this app alot. great one because i too could not figure out how to lower the brightness.

Thanks for sharing!

I have tried many screen filter apps, and to this day, none have come close to Lux Auto Brightness.

Dr. Evo said:
I have tried many screen filter apps, and to this day, none have come close to Lux Auto Brightness.
Click to expand...
Click to collapse
+1
Sent from the TermiNOTEr 2!

Does Lux apply
a filter as well? The only down side I can think of with the filter method is that it doesn't really save battery (in comparison to actually emitting less light).
Sent from my SGH-I317M using xda app-developers app

JiraffeLeung said:
Does Lux apply
a filter as well? The only down side I can think of with the filter method is that it doesn't really save battery (in comparison to actually emitting less light).
Sent from my SGH-I317M using xda app-developers app
Click to expand...
Click to collapse
I dont think it applies a filter. I think it allows you to go below stock settings.
Sent from the TermiNOTEr 2!

Screen vividness

What do you guys think it's more vibrant or saturated? Standard or Dynamic display?
Sent from my SGH-M919 using xda app-developers app

I've gotten accustomed to oled and prefer it even over higher end lcd panels. Especially on this GS4 as oled has really come a long way. I like using the "adapt display" as it gets super bright in outdoor sunlight, brighter than any other mode when on auto-brightness. The colors look good without too much over saturation
Sent from my SGH-M919 using xda premium

Lux auto brightness/auto brightness in general

So I've read a few posts from some users and saw a video in youtube but I'm confused. Does auto-brightness save battery life or not? Because some say it dims the display, but others say it's constantly using the light sensor to search for the lighting of the room (lux auto brightness uses the light sensor whenever the phone screen is turned on)
So auto brightness yay or nay?
Sent from my SGH-M919 using xda app-developers app

kevinrubio1 said:
So I've read a few posts from some users and saw a video in youtube but I'm confused. Does auto-brightness save battery life or not? Because some say it dims the display, but others say it's constantly using the light sensor to search for the lighting of the room (lux auto brightness uses the light sensor whenever the phone screen is turned on)
So auto brightness yay or nay?
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
I haven't noticed a HUGE difference in battery life using auto-brightness; on top of that, it always seems too dim for me anyway. I'd rather lose out on that extra 15-30 min of battery life at 100% brightness than I would strain my eyes.

lordcheeto03 said:
I haven't noticed a HUGE difference in battery life using auto-brightness; on top of that, it always seems too dim for me anyway. I'd rather lose out on that extra 15-30 min of battery life at 100% brightness than I would strain my eyes.
Click to expand...
Click to collapse
So it's based on opinion on how you like the screen brightness! I prefer a brighter screen too!
Sent from my SGH-M919 using xda app-developers app

kevinrubio1 said:
So it's based on opinion on how you like the screen brightness! I prefer a brighter screen too!
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
I wouldn't draw that same exact conclusion; it would really depend on how heavy a user you are. I, personally am a pretty light user on average, so I wouldn't really experience much of a noticeable difference stretched out over 2 days... but for someone who is a heavier user, that difference could mean an extra 15-30 minutes. Not all that much, but definitely noticeable for people who have their screen on all the time.

lordcheeto03 said:
I wouldn't draw that same exact conclusion; it would really depend on how heavy a user you are. I, personally am a pretty light user on average, so I wouldn't really experience much of a noticeable difference stretched out over 2 days... but for someone who is a heavier user, that difference could mean an extra 15-30 minutes. Not all that much, but definitely noticeable for people who have their screen on all the time.
Click to expand...
Click to collapse
I'm a moderate user and I guess brightness for me doesn't really matter, my phone will get through the day anyways!
Sent from my SGH-M919 using xda app-developers app