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from the 8-megapixels-should-be-enough-for-anyone dept.
You can cross another resolution off the smartphone display list:
The third device from the Z5 series is the Xperia Z5 Premium, which includes the 5.5" 4k [3840×2160] screen, a 3,430 mAh battery, and the ability to expand its 32 GB of default internal storage by up to 200 GB through microSD cards. The 4k Triluminos IPS display promises to have a high color gamut, higher contrast and higher sharpness, as well. In the few moments I've spent with it at IFA, the screen did indeed look crystal clear.
[...] Xperia Z5 will launch globally in October this year, while the Xperia Z5 Premium should arrive a month later, in November. Both single-SIM and dual-SIM variants will exist for both models.
Some lucky Sony executive is shoving the Xperia Z5 Premium in his Google Cardboard. Next stop, the world's first 5K (5120×2880) smartphone.
(Score: 0) by Anonymous Coward on Friday September 04 2015, @04:02PM
What is 4K exactly? Can I get that in units of measure a normal male would comprehend? Like say number of blades on a razor? Is it like 6 blades or are we approaching 7?
Yes I jest. But it seems entirely and utterly pointless. Simply put, much like additional blades, ti is a marketing gimmick and won't actually improve the performance of the device.
(Score: 0) by Anonymous Coward on Friday September 04 2015, @04:37PM
4K is 4000. It's a count, not a measure. In this case, the number of horizontal pixels.
Well, actually they rounded it up. Great for marketing; they say 4K, but you get only 3840.
Anyway, previous names went with the line number —like 1080p —, which would make this only 2K, but hey, marketing wants higher numbers!
Well, what you *can* do is to calculate the pixel density. As a rule of thumb, for 16:9, the height is half the diagonal, so the pixel density is 2160 pixels/(5.5"/2) = slightly below 800 ppi.
(Score: 3, Insightful) by takyon on Friday September 04 2015, @05:41PM
Anon is in jest. Anyway, another article puts this display at 806 ppi. I just found this [wikipedia.org]... guess we ought to call it XXXXHDPI pixel density!
"Cinematic" 4K is 4096×2160. Might as well call it 4.1K!
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(Score: 3, Interesting) by takyon on Friday September 04 2015, @05:18PM
The one good thing about high resolutions in this size is that it helps virtual reality. Not only can you pop your phone into a product like Google Cardboard or something more fancy, but having the panels on the market means that similar sized panels (~5.5 inches) will make their way into standalone devices like Oculus, GearVR, and Vive. VR-focused companies (especially AMD) are indicating they want to pursue 8K or greater in a smartphone sized panel, so they aren't stopping at 4K.
Now you have to believe in VR hype to care about that, but I think it could work out. Ubuntu Edge showed that a lot of people were willing to throw down $$$ for a smartphone desktop replacement. Instead of docking the thing to an external display, why not strap it to your face? Using the back-facing camera could allow the "projection" of a virtual keyboard. The "display" can fit in a small carrying case, and your computer goes in your pocket.
Pushing 4K in the premium tier of smartphones will push other resolutions down to the cheaper tiers. 2560×1440 will live alongside 4K for years, but will also move down to the mid-tier of phones. 1920×1080 will be found on the cheapest phones.
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(Score: 0) by Anonymous Coward on Sunday September 06 2015, @02:50AM
Ubuntu Edge showed that a lot of people were willing to throw down $$$ for a smartphone desktop replacement.
You call 5000-odd people a lot? Compared to the number of smartphones sold, it is an absolutely tiny amount.
(Score: 2) by maxwell demon on Friday September 04 2015, @07:16PM
8.3 Megapixels.
The Tao of math: The numbers you can count are not the real numbers.