[Q] IPS (In-Plane Switching) screen - LG Optimus Black

Hello everyone i was just asking if the IPS screen uses more battery depending on the brightness level only or on the colours it emits also??
If so, does it consumes more battery with "black" colour (not really black... rather grey ) or white colour?? Please reply!
what I know is that IPS is a type of LCD which is a panel emitting light and 3 colours (Red,blue,Green) is that right? When it displays "black", it blocks some colours..

I know the OB screen consumes only depending on brightness, not the color.
White and black consume equal, and the white consumes less than superamoled white.

well our optimus black has been introduced saying that its ips display is powered by a lg technology called "nova" (nova display at the facts), and the most importat spec of this screen is the high brightness level (700 nit) and that the white color consume much less battery then competitors screen. This is the technical description provided by lg, but could be only pure marketing, who knows! Btw i think this screen is amazing, try to put an optimus black near a galaxy s2....well i think gs2 screen is a s**t !! just my 2 cent!

The white color consumes much less not of every competitor screen, but only less of traditional LCD screen ( - 30%) and super amoled (- 50%).
on the other hand the superamoled consumes nothing on black color

Related

[Q] Reduce AMOLED power consumption?

Is it possible to reduce power consumption of the display? I already set brightness to minimum. Power Profiler shows that the display is using about 75% of total power consumption when phone is idle with wlan on.
450mW Display
600mW Total
If it is possible to reduce display power to 300mW the battery should last 33% longer.
I see only a small difference with low brightness or full brightness. (450mw low, 600mW high). No difference if Screen is white or Black. Maybe a bug in Power Profiler?
Try to set a dark background. AMOLED display only consumes power on dots that really on.
nsa666 said:
Try to set a dark background. AMOLED display only consumes power on dots that really on.
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yeah,i got a better battery performance when i changed to black wallpapers

My screen's White-Tracking (yours will be different)

I got my replacement unit yesterday (screen lift on an 8GB model) and decided to check the white balance out of curiosity.
I used the Flashlight app from flash-the-brain, which offers a full range of brightness values, though without any numbers to go with them, so the actual brightness is only approximate. I used a Spyder 2 colorimeter (old and slow, but produced readings in line with a newer iDisplay I borrowed a while ago) and the monitor WB pre-calibration mode from my calibration software. Readings were taken where the measurement stabilised, and I generally waited around 30secs to be sure.
100%: 6305
90%: 6225
80%: 6187
70%: 6210
60%: 6235
50%: 6243
40%: 6252
30%: 6212
20%: 6034
10%: 6292
The dip at 20% was reproducible. Below 10% it was impossible to get a stable reading, probably because of light leakage along the glossy screen.
I've calibrated quite a few monitors over the years, and these numbers out-of-the-box are pretty damn good IMHO. But there's no guarantee this will have any relation to the white-balance on other displays.
[Note: For those who aren't into screen calibration, the numbers are all supposed to be 6500K. LCD screens typically vary from this number, in some cases by thousands of Kelvin]
Good data, what color did you use, white? Have you tried a few tones of grey to see how it handles the LCD color but consistent backlight? ie: Leave backlight at whatever is reasonable, 75%, higher? And adjust the background tone.
Not sure if that app will let you do that, but you could create a few png's and view them in JustPictures.
I just used a flashlight app with adjustable colour - the numbers on the left are approximate grey values. The actual backlight intensity remained the same throughout.

[Q] Does adaptive display consume more battery life?

Hi everyone,
I would like to know if someone has seen battery life improvement by switching to Amoled Photo or Amoled Basic. I'm between adaptive display and Amoled Photo. I ask because since adaptive display constantly changes colors and sharpness betwen supported applications it would be logical that it consumes more battery, at least that's what I'm thinking.
I may be wrong, but if someone knows a little more about this topic I would highly appreciate it. Thanks in advance!!

Minimum brightness

You don't want to give your significant other yet another reason to yell at you while you're reading XDA in bed. Rate this thread to express what you think of the LG Nexus 5X's display minimum dimness. A higher rating indicates that the display can get extremely dim, ideal for reading in very dark environments.
Then, drop a comment if you have anything to add!
Not great. LCD has trouble with very low brightness
I've never seen an IPS display brightness get as low as this. Phone arena measured it at 2 nits.
Not many people need their screen to get that low but for those who do, it's there.
Screen can get really dim on manual setting
For me, the lowest brightness setting was never needed, but if there are users that want to take advantage of this then it is there.
Anyone have issues with the adaptive brightness feature lowering the screen brightness way too low? In a room where the light source is in front of me (behind the phone since it's pointing at me) the phone screen will dim and make it impossible to read. Increasing the brightness doesn't help as it will get way too bright when something bright comes on behind me for a few seconds.
Omg I LOVE how low the brightness gets, its perfect for waking up at 3 am and checking the time. I'm one of those people who keeps the screen on the lowest brightness possible, never use auto brightness. I've never seen a screen have as huge of a range of brightness as this. You can go from "I can't see wtf is on the screen" to "AHHHHHH! MY EYES, THEY ARE BURNING!" in half a second.

Question Fhd+ vs WQHD+

Hi all, I have been thinking lately about moving to WQHD resolution instead of the FHD that I'm already on. Can someone please share the battery impact and the actual screen sharpness? I have always maintained that the smaller the screen the more difficult it is to discern the actual difference between FHD and WQHD. Surely, the difference is day and night on larger screen sizes i.e. 50 inches and above. Is it really the case on our screens too? I'm on adaptive refresh rate and plan to keep it as is.
amirage said:
Hi all, I have been thinking lately about moving to WQHD resolution instead of the FHD that I'm already on. Can someone please share the battery impact and the actual screen sharpness? I have always maintained that the smaller the screen the more difficult it is to discern the actual difference between FHD and WQHD. Surely, the difference is day and night on larger screen sizes i.e. 50 inches and above. Is it really the case on our screens too? I'm on adaptive refresh rate and plan to keep it as is.
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Not much of a difference in battery , may be like 30 mins of less SOT.
Gpu takes a bit of more load , and thus the overall graphics might be like 5-10% slow .
Thats my opinion, might be different for others
The difference is nearly imperceptible, wouldn't worry too much about both WQHD+ and adaptive refresh rate
Buying a phone at this price but not using the highest possible resolution is quite useless
why cant you just TRY IT YOURSELF?
sesnut said:
why cant you just TRY IT YOURSELF?
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You could NOT have used the CAPS and I would have still understood your point!
amirage said:
Hi all, I have been thinking lately about moving to WQHD resolution instead of the FHD that I'm already on. Can someone please share the battery impact and the actual screen sharpness? I have always maintained that the smaller the screen the more difficult it is to discern the actual difference between FHD and WQHD. Surely, the difference is day and night on larger screen sizes i.e. 50 inches and above. Is it really the case on our screens too? I'm on adaptive refresh rate and plan to keep it as is.
Click to expand...
Click to collapse
Hi.
I tried both WQHD+ and FHD+ with adaptive refresh rate on for a few days each - but I couldn't discern any significant differnce in battery life with day to day usage. I'm not saying there wasn't any... common sense dictates that there must be some, but I wansn't able to appreciate it.
I was very hard pressed to tell the differnce between the two resolutions on my screen as well. When I went down to HD+, I could immediately detect the drop in quality. But between FHD and WQHD I couldn't tell initially. Over time, i leatnt to discern the differnce up close (really close) becasue I knew what to look for - but the difference was not very big. So I tested it out on my family members, and not a single person could tell the difference with confidence (none are tech nerds) - all they said is "Wow! nice screen, what do you want me to look for? Looks the same as before..."
But this was all done in the first 2 weeks since I bought the phone, so usage was erratic and frenzied. I hadn't settled into a regular routine with the phone, it being all new and shiny - installing and uninstalling new apps, tinkering around etc - so i don't think I can honestly testify as to the battery life difference between FHD and WQHD.
But I can definitely tell that my eyes found it very difficult to tell the difference in quality, even today. So I just kept it on FHD+ and forgot about it till I came across your post. Maybe it's time to try out the experiment again with a more settled down phone... as I sit here typing this on WQHD resolution, trying to imagine if the FHD+ looked any different 15 minutes ago.
amirage said:
Hi all, I have been thinking lately about moving to WQHD resolution instead of the FHD that I'm already on. Can someone please share the battery impact and the actual screen sharpness? I have always maintained that the smaller the screen the more difficult it is to discern the actual difference between FHD and WQHD. Surely, the difference is day and night on larger screen sizes i.e. 50 inches and above. Is it really the case on our screens too? I'm on adaptive refresh rate and plan to keep it as is.
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I tried it and didn't see much difference so keeping it at wqhd and adaptive.
Same with 4g and 5g in my area.
Everything is on adaptive. 5g and wqhd.
Go on and use it. That's why you paid for the phone, if you don't use the feature s what's the point?
Just use the best possible resolution. No point getting a phone like this and turn things off is how i look at it.
70% of the time, on my phone: I'm just messaging/calling or using the browser to view text-based content with a few images here and there.
30% of the time: HD Video, photos, camera, video-calls, etc.
So, I do this:
(1) Remove Animations (under Accessibility or just use Finder/search to locate it) -- because I don't need
(2) Force Dark in Developer Options (goes away after a reboot, so just reactivate this).
(3) Keep the phone in 720p60fps, full-temperature Comfort Shield, Power Saving mode, AOD off, Limit CPU to 70%, Decrease brightness by 10%, etc.
(4) Use a Bixby Routine to go into and come out of this low-quality mode as desired.
(5) I have all deviceidle and other power saving settings turned off.
nixnixnixnix4 said:
70% of the time, on my phone: I'm just messaging/calling or using the browser to view text-based content with a few images here and there.
30% of the time: HD Video, photos, camera, video-calls, etc.
So, I do this:
(1) Remove Animations (under Accessibility or just use Finder/search to locate it) -- because I don't need
(2) Force Dark in Developer Options (goes away after a reboot, so just reactivate this).
(3) Keep the phone in 720p60fps, full-temperature Comfort Shield, Power Saving mode, AOD off, Limit CPU to 70%, Decrease brightness by 10%, etc.
(4) Use a Bixby Routine to go into and come out of this low-quality mode as desired.
(5) I have all deviceidle and other power saving settings turned off.
Click to expand...
Click to collapse
Now your phone will always stay dark on reboot. You're welcome.

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