Apple iPad 3 Retina display confirmed by iFixit
posted by Alan F. / Feb 23, 2012, 6:06 PM
is not compatible and thoughts of splicing wires to make the panel work were quickly quashed. But while iFixit could not get the screen powered up, it was able to look at the two panels under a microscope just like MacRumors did, and came to the exact same conclusion: the number of pixels on the Apple iPad 3 screen are four times the number on the Apple iPad 2. That means that the resolution on the new display is double that of the prior model at 2048×1536. In case you need the precise numbers, there are 786,432 pixels on the 9.7 inch iPad 2 display. The iPad 3 will have 3,145,728 pixels. Bottom line? The Apple iPad 3 has a Retina display.
Wait. Didn't none other than the late Steve Jobs say that a device had to have a pixel density of 300ppi or more to have a Retina display? Yes he did, but as iFixit explains in the video below, because a tablet is held further from the eyes than a phone, the Apple iPad-any tablet really-should be held to a pixel density of only 240 ppi or higher to be considered a Retina display. At 2048x1536, the iPad 3 has a 264ppi.
source: iFixit via Geek.com
Posts: 74; Member since: Jan 03, 2011
Awesome! Now to figure out if were getting the A5x or an A6
posted on Feb 23, 2012, 6:10 PM 5
Posts: 1075; Member since: Oct 19, 2011
if we dont know anything about either what is the difference?
posted on Feb 23, 2012, 6:29 PM 1
Posts: 2137; Member since: Jan 06, 2011
lol, so we obviously know something… its quite clear that A5x will be dual core while A6 would be quad… no, it is not certain, but with a pic for the name of a second dual core, it is logical apple reserves full numbers for full upgrades
posted on Feb 23, 2012, 9:47 PM 0
Posts: 1075; Member since: Oct 19, 2011
i wonder if the mystery asus tab will have a higher ppi? if so, there goes apple's selling point.
posted on Feb 23, 2012, 6:10 PM 3
Posts: 2356; Member since: Feb 14, 2011
Not just Asus, but also Samsung is rumored to be pushing out a higher resolution tablet as well.
posted on Feb 23, 2012, 6:37 PM 5
Posts: 1115; Member since: Nov 18, 2010
How do you figure of the ppi?
posted on Feb 23, 2012, 6:45 PM 0
Posts: 1; Member since: Feb 23, 2012
Pixels per inch (PPI) or pixel density is a measurement of the resolution of devices in various contexts; typically computer displays, image scanners, and digital camera image sensors. PPI can also describe the resolution, in pixels, of an image to be printed within a specified space. Note, the unit is not square inches. For instance, a 100×100 pixel image that is printed in a 1-inch square has a resolution of 100 pixels per inch (PPI). Used in this way, the measurement is meaningful when printing an image. Good quality photographs usually require 300 pixels per inch when printed. Now how does it works? Theoretically, PPI can be calculated from knowing the diagonal size of the screen in inches and the resolution in pixels (width and height). This can be done in steps: Calculate diagonal resolution in pixels using the Pythagorean theorem
posted on Feb 23, 2012, 11:12 PM 0
Posts: 2000; Member since: Apr 16, 2011
You need to know the size of a "pixel" is not standardized. Also, the math can be misleading since you can have two screens with same diagional display but different lengths and widths for the same pixel resolution, say 800x480. What I am saying is the diagonal display and pixel resolution is NOT sufficient since the math makes an assumption about pixel size, which may not be true. The following website makes a key assumption that each pixel is a square and that is how you get to the 263/264 PPI for the iPad 3.http://members.ping.de/~sven/d
In summary, I measured numerous android devices with the same 4.3" diagonal display with about the same pixel resolution, but YOU CAN'T DISCERN ppi because the displays all had different widths -- HTC screens tend to be skinnier than Samsung displays despite the same 4.3" screen meaning the pixels were stretched in the Samsung devices. That theorem of c^2 = a^2 + b^2 for right triangles makes an assumption about the units being the same. Once you assume square pixels, you overcome the fact pixel sizes may not be uniform or standardized in size.
posted on Feb 24, 2012, 4:19 AM 1
Posts: 1476; Member since: Dec 01, 2011
Meh, It wouldn't even matter if they put a retina screen there or not, iFans will still buy it. All they have to do is just say it has a retina display and Steve Job's Reality Distortion will do it's job...
posted on Feb 24, 2012, 1:42 AM 0
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