[Photos] The BlackBerry L-Series Will Have a 4.2 Inch Display

There you have it. Another leaked image, nearly identical to the image I posted earlier this month, depicting what BlackBerry loyalists are hoping will be RIM’s saving grace. If this mashup of plastic, glass and more plastic is the device believed to be the all-touch L-series running BlackBerry 10, I’ve gotta say, I’m not holding my breath that users will flock to it, let alone leave their iPhones and Android devices behind for it.

But, for fun, let’s take a closer look.

After doing just a little adjusting of the brightness and contrast on this incredibly low resolution image, the borders of the display itself became slightly more apparent, under the glass cover layer. In the image below, I marked in these borders so you can get a better feel for screen size. Looking back at the close up photo from earlier this month, it seems to match up quite nicely.

Here’s the fun part.

Going further, since the screen size hasn’t been announced (or leaked), we can figure it out based on what we do know. N4BB says the display will be 1280×768 resolution, with an impressive 356PPI. Applying the Pythagorean Theorum and then working backwards, we arrive at a 4.21 inch display (355.41 PPI) and an aspect ratio of 5:3.

N4BB also says the display will be 55mm in width. Again, working backwards, we can figure the height (from the aspect ratio) to be 92mm. Converted to inches, we’re looking at a display which is 3.62 inches tall by 2.17 inches wide. If we double check the math using these numbers, they provide a diagonal screen size of 4.22 inches. I’m rounding to two decimal places in my calculations, so that’s why the 1/100th inch discrepancy.

Lastly, as for the device dimensions itself, I’m predicting, based on my calculations here and the perspective of the image above, we’ll see a device about the size of the the Droid X. Look for it to be around 130mm tall and 64mm wide.

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[via crackberry]