What would the power-draw difference be between an OLED and the LCD display for an iPhone? Just wondering what the magnitude of the pro-argument would be.
It's easy to characterize the power draw from a backlit LCD display, because over 90% of the power is from the lighting, which is on all the time the display is, and at the same level, except for the automatic sensor, if used.
But an AMOLED is different. Right now, there is no standard test set-up for them. So every manufacturer uses their own tests to determine the AVERAGE efficiency, which depends on how bright the display is, and which colors are being used.
So if the entire screen is black, no power is being used. If the screen is while, a lot of power is being used. Results vary.
But the fact is that manufacturers who are using AMOLEDS are using GUI's that are mostly black, or often of one color, are doing it to conserve power.
Samsung seems to have a more efficient display, but it has other problems.
This story kind of reminds me of an incident back in the 60's where a defecting Russian pilot flew the then new and top secret Mig 21 to Germany. The Russians demanded the immediate return of the Mig. It was shipped back to the USSR in several crates after the CIA and USAF had completely disassembled it.
The larger battery will be negated by a faster processor. I think the battery life will stay about the same.
Not even close. The new A4 uses way less power than the stock Cortex chip. Its more powerful AND less power hungry. iPhone battery performance will rival the iPad. 8-9 hrs is my guess.
Not even close. The new A4 uses way less power than the stock Cortex chip. Its more powerful AND less power hungry. iPhone battery performance will rival the iPad. 8-9 hrs is my guess.
Not even close. The new A4 uses way less power than the stock Cortex chip. Its more powerful AND less power hungry. iPhone battery performance will rival the iPad. 8-9 hrs is my guess.
8-9 hours for what? 3G talk time? It already gets 10 hours for video.
Agreed. The A4 chip (or whatever A class chip Apple will use) was most likely made with power efficiency in mind. Considering that the new laptops and iPad have staggeringly long battery life, one would expect the iPhone to follow suit.
If indeed this will be the same A4 chip responsible for the reported "blazing" speed and responsiveness of the iPad, I would venture that, unless it is clocked down more severely, the speed of the next iPhone will cause the 3GS to be renamed "Sluggish".
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Too bad anandtech didn't get their hands on it.
They would have had the decency to return stolen goods.
What would the power-draw difference be between an OLED and the LCD display for an iPhone? Just wondering what the magnitude of the pro-argument would be.
It's easy to characterize the power draw from a backlit LCD display, because over 90% of the power is from the lighting, which is on all the time the display is, and at the same level, except for the automatic sensor, if used.
But an AMOLED is different. Right now, there is no standard test set-up for them. So every manufacturer uses their own tests to determine the AVERAGE efficiency, which depends on how bright the display is, and which colors are being used.
So if the entire screen is black, no power is being used. If the screen is while, a lot of power is being used. Results vary.
But the fact is that manufacturers who are using AMOLEDS are using GUI's that are mostly black, or often of one color, are doing it to conserve power.
Samsung seems to have a more efficient display, but it has other problems.
This story kind of reminds me of an incident back in the 60's where a defecting Russian pilot flew the then new and top secret Mig 21 to Germany. The Russians demanded the immediate return of the Mig. It was shipped back to the USSR in several crates after the CIA and USAF had completely disassembled it.
It was in 1976, not in 60's
He defected to Japan, not to Germany
It was MiG-25, not MiG-21.
http://en.wikipedia.org/wiki/Viktor_Belenko
Yes, CIA and USAF disassembled the aircraft and returned it back to the USSR in 3 months
The larger battery will be negated by a faster processor. I think the battery life will stay about the same.
Not even close. The new A4 uses way less power than the stock Cortex chip. Its more powerful AND less power hungry. iPhone battery performance will rival the iPad. 8-9 hrs is my guess.
Not even close. The new A4 uses way less power than the stock Cortex chip. Its more powerful AND less power hungry. iPhone battery performance will rival the iPad. 8-9 hrs is my guess.
Ooh, you're out on a limb there.
Not even close. The new A4 uses way less power than the stock Cortex chip. Its more powerful AND less power hungry. iPhone battery performance will rival the iPad. 8-9 hrs is my guess.
8-9 hours for what? 3G talk time? It already gets 10 hours for video.
Agreed. The A4 chip (or whatever A class chip Apple will use) was most likely made with power efficiency in mind. Considering that the new laptops and iPad have staggeringly long battery life, one would expect the iPhone to follow suit.
If indeed this will be the same A4 chip responsible for the reported "blazing" speed and responsiveness of the iPad, I would venture that, unless it is clocked down more severely, the speed of the next iPhone will cause the 3GS to be renamed "Sluggish".
W00t!!