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1 hour later…
10:00 AM
good after noon everyone
 
10:51 AM
good afternoon
a quick tip about the site: don't post an answer unless you're answering the question
if you want to ask the questioner for more details, add a comment to their post (you need some reputation points before you can do that)
 
 
1 hour later…
11:53 AM
@DanHulme I purchased an android device on contract and now plan to unlock it from a non-US territory. So is it legal or something illegal. As DMCA is a US law so it will not be applicable on a non-US territory. So do you suggest me to go ahead and get it unlocked by purchasing unlock code / unlocking it through other means .
 
12:10 PM
DMCA is not related to SIM-unlocking anyway
 
 
3 hours later…
3:33 PM
@DanHulme looks like I've got some problem in phrasing :) Can you tell me where I wrote what your comments on the LCD/LED answer suggest?
(see also my comment on yours)
 
the first bullet point
> "light generators" (LEDs for OLED, or crystals for LCD)
> ... would work for both types of displays
maybe you meant to say the backlight for an LCD screen?
 
Ah, so phrasing issue. I especially put that in quotes.
I meant not literally a "generator". I'm aware that LCDs work different. Just could not figure the correct English terms...
 
Using a software overlay to darken pixels on an LCD screen won't reduce the power consumption at all.
because the same amount of light is being produced
 
How does that overlay work then, other than "reducing power fed"? If it's using the "color-change approach", it works on OLED, but not on LCD (like described).
 
by putting a transparent grey full-screen window on top of other windows
that's more likely to increase overall power consumption, because you're giving the window compositor more work to do
 
3:40 PM
That's for sure no physical "foil". How does the "hardware" interprete that? Not by dimming the backlight / LEDs?
@DanHulme Hm, meaning the "power potentially saved" being eaten by the compositor (CPU cycles etc)?
@DanHulme Adjusted that in my post, thanks!
 
@Izzy no, just by making the LCDs display darker colours
only the actual brightness control dims the backlight
so there is no "power potentially saved"
 
@DanHulme Just to confirm I got that right: Same amount backlight then just gets darkened by "thicker (darker) crystal"?
 
3:57 PM
yeah
just like putting a foil over the screen :-)
 
Umpf...
Thanks for the details, just updated my answer with them: Great additional info that should be there!
May I ask if the downvote was yours – and if so, whether it was for "incomplete data" or "misunderstanding"? In the latter case, you might wish to "retract" it ;)
 
it was, because of the misinformation
 
Misinformation? In what way?
I see no contradiction to what I wrote (except for phrasing, where I might not have chosen the best words – I'm no native speaker, you know).
If there's any misinformation in the post, I should correct that (regardless of your downvote – but for quality: it might otherwise mislead people based on the "high rep" of the poster).
 
4:13 PM
the post as a whole still sounds like you're saying they could work, or there's some uncertainty, when there's no uncertainty at all
e.g.
> So there's of course the case using an "incompatible filter": one that's specifically designed for OLED would not save power on an LCD.
that makes it sound like there are LCD-specific power-saving apps out there, and you just need to install the right one
and you've still got
 
What's wrong with that? One based on "using dark colors" would save juice on an OLED, but not on an LCD.
 
> But if it's a software layer reducing brightness, that's something completely different: How should that be achieved other than reducing the "amount of light created"?
 
That's an "opening question" to be answered by the points below it. But I see, it could be interpreted differently. Good point, let me fix that.
 
@Izzy That's true, and it's fine when you say it like that. It's just that "compatible" and "specifically designed for OLED" imply there are two techniques based on the two kinds of displays, when there's only one technique.
and you've still got the whole "redifying" footnote which is entirely speculation
 
@DanHulme Sure, but I thought I explicitely marked it such. Do you feel that too distracting/confusing?
 
4:22 PM
yeah, it's not relevant to any real-world displays
I added a link to another question where I explain how brightness works. You answered it too!
 
@DanHulme How other to put that? A filter working by "changing the colors" doesn't save juice on LCD. But I get your point: it still works to darken the display in both cases, and such isn't "specifically designed for OLED". Again I'm at a loss in phrasing...
@DanHulme Ugh? Lemme look...
Ah, yeah. Different focus ;)
 
@Izzy Something like, "Using a filter/overlay like this will make either type of screen look darker, but it'll only reduce power use on OLED screens. On LCD screens, only decreasing the backlight brightness saves power."
 
@DanHulme Maybe add the term current (time-related) here. Who knows what future brings. I remember having read about things playing with differently colored LEDs to compose a color in a more energy-friendly way than the plain colored LED had allowed for. Not sure whether it was display-releated, though.
@DanHulme That looks perfect! Do you permit me a copy-paste?
 
go ahead
I was this close to writing my own answer
 
Oh. And I've interrupted you with correcting mine? :blush:
Thanks a lot for helping me improving it!
@DanHulme Thanks – did so, quoting the source.
 

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