11–20 of 24 posts
This reminds me of Blackle : the black front end to Google Custom Search which claims to save energy when using CRT monitors. http://blackle.com/ http://en.wikipedia.org/wiki/Blackle
I will say, given these findings from OP, I hope these types of displays become more common.
Spoilers: a very impressive +3 hours of screen time by using dark themes instead of bright ones on SAMOLED. Minor tangent: I'm not sure how he defends his contention that SAMOLED > LCD by noting that he didn't test anything but SAMOLED in the comments. I realize he wasn't testing anything else and I'm perfectly willing to believe that SAMOLED is more efficient but he still claimed X and when asked for evidence punted…
>I simply timed how long it took the battery to drain 5% with the screen always on at various brightness levels and while viewing an all white or all black 720p image fullscreen in QuickPic. This is absolutely best case scenario, ignoring all other battery factors.
did he run it multiple times? was the battery recharged between each test? how did he make sure the 5% were actually always the same 5% and comparable?
xda-developer forums seem to be full of tips and tricks that make your Android device battery last longer or the device work faster, but a lot of that stuff is just crap. This article was better than average, but the results are still very convincing.
When you see a picture of light on an AMOLED screen, it is actually true that a physical light is being prepared in front of your eyes on the screen by adding the three colors in proportion. this is not an easy task and so explains why lcd's as of now display truer colors. This truly is a modern technical achievement.
This reminds me of Blackle : the black front end to Google Custom Search which claims to save energy when using CRT monitors. http://blackle.com/ http://en.wikipedia.org/wiki/Blackle
I remember these findings being refuted, and I thought it was because it took the same amount of power for an LCD screen to show a black pixel instead of a white pixel. I will say, given these findings from OP, I hope these types of displays become more common.
What has always puzzled me is that I thought Google made stock Android pretty dark-themed because they wanted to help manufacturers that used AMOLED screens, specifically Samsung, who makes like 95% of AMOLED's - and yet Samsung has chosen to use a very light-themed Touchwiz skin. It makes no sense. You'd think they would be the first to want to take advantage of a darker theme with their Super AMOLED flagship device…
Spoilers: a very impressive +3 hours of screen time by using dark themes instead of bright ones on SAMOLED. Minor tangent: I'm not sure how he defends his contention that SAMOLED > LCD by noting that he didn't test anything but SAMOLED in the comments. I realize he wasn't testing anything else and I'm perfectly willing to believe that SAMOLED is more efficient but he still claimed X and when asked for evidence punted…
Granted that it's not all like this as some groups out there and developers really do care about such things (like Cyanogenmod). However, that's typically not the mode of operation. For example, kernel modders that think it is a good idea to disable fsync by default. On top of that, they generally do not give an option to enable it for end users. Result was lots of data corruption when people pulled out their batteries.
This is just my observations from being heavily into the modding community for around 2+ years helping to administer one of the larger modding forums. I try to push for factual information as much as I can and to lead by example when possible through any code or mods I might publish, but the community is pretty set in its ways still. I do think my efforts aren't in vain when I get the occasional positive feedback from users, so it keeps me going. However, there are just too many non-developers mixed in with a minority of actual developers and end users cannot seem to discern between them.
Switching to a dark theme and lowering the brightness also works quite good for desktops on UPS.
Lowering the brightness? Sure. Switching to a dark theme? Not so much. If you are using a LCD the color of your pixels doesn't matter. Ok, it might matter a little bit but not much and it's not as easy as saying that white uses more power than black. It might even be the other way around. In an LCD the color is determined by a liquid cristal filter that can be turned on or off and dimmed. The filter itself needs hard…
http://i.stack.imgur.com/c6yrk.jpg (From here, http://skeptics.stackexchange.com/questions/4373/does-a-webp...)
there seems to be a lot of confusion over the efficiency of amoled vs lcd. In lcd, the power consumed directly depends upon the brightness, basically LED's provide the back-light light source and the colors you see on the screen are the representative of the kind of filters the light from the LCD had to cross to reach the surface. All lcd's are in this way passive displays. In an AMOLED display, there are three sets…
OLEDs have better color gamut and contrast than LCDs (without local dimming), making the colors better than LCDs.
