Reduce white point helps save battery?
In that post it does not say anything about that, right? It is not said to spare no batterTake a look at this post for more information reducing white point on your iOS device. AFAIK, it doesn't affect or improve battery.
I'm pretty sure it has no effect on the battery or backlight. It just changes how the display looks.
What GreyOS said. That toggle doesn't change the brightness it just makes lighter areas appear darker. Just like a black screen, showing a darker image uses the same amount of power on an LCD display. Changing the brightness alone would not reduce the "white point".- Adjust full brightness.
- Turn On Reduce White Point
- Turn Off Reduce White Point
Do this steps over and over again. Until u see the difference. Im pretty sure it has effect on the battery. Because brightness or screen light or pixel white colour or whatever reducing and this means lcd spends a little less energy.
How about go to a white screen and then go to a black screen
you see the difference?
well the backlight is still the same strength, using the same power
edit: SORRY quoted the wrong person, wasn't paying attentionThat's incorrect. LCD displays don't use less power when displaying black, LED displays do.
Reduce White Point is an accessibility feature and doesn't have anything to do with energy consumptionNo u are totally wrong. Lcd uses different energy these scenarios. Black screen uses less energy than White screen. And these feature has a 'Reduce White Point' name.
We are reducing pixels white points. We are doing it pixel level with/or reducing screen brightness too with Reduce White Point. Maybe engineers added, reduce brightness, codes too in this feature like low power mode(it decreasing screen brightness too like reduce white point) If its incorrect then enlight us. I still believe what i see.That's incorrect. LCD displays don't use less power when displaying black, LED displays do.
Doing that would darken the whole screen, not just the white parts.We are reducing pixels white points. We are doing it pixel level with/or reducing screen brightness too with Reduce White Point. Maybe engineers added, reduce brightness, codes too in this feature. If its incorrect then enlight us. I still believe what i see.
If i hold the 5W light to ur eyes. U should say this.
- Whats that.
(Turn on Reduce White Point)
If i hold the 80W light to ur eyes. U should say this.
(Turn off Reduce White Point)
Thats what im talking about and thats what i see. Reduce white point decreasing screen light. And low light means low energy.
Then reduce the brightness of the screen or just change the colors?
No, because that poster is incorrect. It doesn't dim the display.
It dims the white parts but leaves the colors and the dark parts of the screen alone. If you dim the display it darkens all of those things too.
Partially correct. Reducing the white point reduces the maximum values of a pixel. So if a pixel could have a range of 0-255 for each of the three colors, where 255 on all three produces white, then reducing it might make the maximum 230.
When this is applied, it impacts the brighter end proportionally more than the darker end, but it still does affect the entire spectrum, except for black or very very near it.
This differs from reducing the brightness as that reduces the LED backlighting. Reducing white point should be used secondary to reducing the LED brightness because it effectively reduces contrast.
It can help in dark situations, although inverting colors is still much easier on the eyes.
There's a bit of a terminology issue here.But if it dims the white parts and a pixel could have a range of 0-230, it would be reducing the brightness, no?
But it reduces brughtness, save more batery, no?There's a bit of a terminology issue here.
The Brightness setting on iOS controls the backlight. On a TV you'll often see a different setting for brightness and backlight.
Reducing white point is reducing brightness (in TV terminology) and doesn't save battery on iPhone screens; only reducing backlight does.
No, as many people have stated over and over.But it reduces brughtness, save more batery, no?
I think it has become clear to me already hehe. Thank you very muchNo, as many people have stated over and over.
Let me use purely iOS terminology so as not to confuse matters.
1. Lowering brightness in iOS saves battery.
2. Reducing white point does not reduce brightness.
3. Reducing white point changes the colour of pixels.
4. Changing the colour of pixels does not save battery on iPhone screens.