Sony Xperia Z5 Premium 4K display goes under our microscope

07 September, 2015
Sony stole the show at IFA by introducing the world’s first 4K display in a production smartphone, the Xperia Z5 Premium.

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  • C
  • Canniba;
  • 9L9
  • 02 Jan 2016

Beast!!!!

    Idiot everywhere. Huh.. Just one word for this phone: GREAT!

      • D
      • AnonD-152638
      • mhB
      • 09 Sep 2015

      AnonD-438494, 09 Sep 2015> Did you look at the image supplied with this article? ... moreYour original comment
      "So... it looks like Sony where unable to make it an actual 4K display, and went with fancy layout to mask that this screen has only 2/3 of required RGB subpixels.
      The individual subpixels are on a 1:2 grid instead of usual 1:3, meaning that it has 3840x2160x2 subpixels instead of expected 3840x2160x3."

      It has 3 subpixels, in a line, just like most LCDs does.
      So it has 3/3 of the required RGB subpixels.
      LCDs typically don't use a grid. The subpixels line in a set of the 3 RGB subpixels. Usually though, on the other axis, it has the same color of subpixels lined up. Meaning that it can't be used as a grid.

      Then:
      "> Did you look at the image supplied with this article?
      I did.
      You just glanced it... :-)"

      "> It has RGB subpixels.
      Yes, Captain Obvious."

      Yes it does, you were the one saying it did not use RGB subpixel, setup, as you said it only had 2 subpixels.
      So that glance might not been enough.

      "> Samsung does not use a full set of RGB, but Sony did.
      Sony used the same number of subpixels for each color channel.
      This does not make it a "full set"."

      That does exactly that, if the display is an RGB display, using one of each per channel, is a full set. There are other types of displays, than RGB, but in a RGB display, having Red, Green and Blue pixels, per each color channel, is a full set.

      "> Pixels are usually not placed in a grid, but in a line.
      Are you seriously saying that display screens are not usually 2D grid of pixels but just a 1D line of 'em? Don't be ridiculous... :-/
      Pixels are always on a grid.
      The spacing in vertical & horizontal direction may be different (usually it is, since need to have 3 times more subpixels in one of those), it may not be a rectangular grid (Samsung does that). But it is always a grid."

      I meant subpixels. That was what we were talking about. But yes, if i wrote pixels, and not subpixels, I did a misstake.

      "In this case the grid spacing is unusual.
      It has 2 subpixels for each pixel in horizontal direction, not 3."

      Subpixels, make up the pixel itself.
      You could perhaps somehow design a display, that would use subpixels, from different pixels, so that you could decide on what axis yhe subpixels will make up the pixels.
      But that is not how it's typically done on LCDs.

      "Usually it goes like this: [RGB][RGB], where each subpixel is 1/3 of pixel width."

      Subpixel size does perhaps not usually differ on LCDs, but here the Green pixel seems bigger. But it's still roughly 1/3 per pixel

      "In Sony's "4K" display: [RG][BR][GB], and each subpixel is 1/2 of pixel width."

      No, go back an look at the picture, and you will know you are incorrect. If you dont, get a better display, so you can see the image properly.

      "There are just 2 subpixels of each color for every 3 pixels..."

      Again, go back and look at the picture.

      Unless you again think that subpixels are usually arranged in a RGBxRGB grid, which they arent. They are usually on a RGBxRRR grid in LCDs, if you count try to make up a 3x3 grid.

        Just best noting else

          • ?
          • Anonymous
          • bCg
          • 09 Sep 2015

          Anonymous, 08 Sep 2015how come you allways try and scare people away from great ... moreObviously

            • J
            • JITEN
            • U%{
            • 09 Sep 2015

            AnonD-438494, 09 Sep 2015Ha... did not notice the phisical scale. :) If it is corre... moreTrue that.. ! Full Retard

              • D
              • AnonD-438494
              • qi8
              • 09 Sep 2015

              Ha... did not notice the phisical scale. :)
              If it is correct, than it means that Sony actually did go full retard with this one.
              As in: the vertical resolution is 1209 ppi, in 2160x3840 mode 2 displayed pixel rows correspond to 3 physical pixel rows.
              The 4K image is upsampled 1.5 times in vertical direction, 2K image is upsampled 3 times - one pixel row to 3.
              There are 37.3M subpixels total : 6480x5760.
              In 4K mode one displayed pixel roughly maps to 4.5 subpixels, in 2K mode it's 18 subpixels per displayed pixel.
              Kind of an overkill...
              Seriously, why? what is the point? 8-/

                • ?
                • Anonymous
                • w77
                • 09 Sep 2015

                hi George, is Sony launched for the price?

                  • L
                  • Luke5119
                  • gGr
                  • 09 Sep 2015

                  I think we as a people have gotten incredibly impatient with phone upgrades. If a manufacturer doesn't make some sort of radical improvement from year to year, they're written off. Look at the specs on this phone, without comparing them to any other device on the market or in production. It's nothing short of a technological marvel. 20 years ago you would have never fathom'd such a device existing. But what do we do?? We say stuff like..."Yeah,...it's okay I guess. But that display is gonna eat the battery up, and the camera...it's good, but I think it over sharpens and the...." Come on people. Awesome job Sony on the Xperia Z5, looks amazing!

                    • S
                    • Swagloard
                    • fsV
                    • 09 Sep 2015

                    Good How Can i Order for it?

                      • D
                      • AnonD-67515
                      • Nug
                      • 09 Sep 2015

                      u should know theres data coming on manhattan benchmark.

                        • D
                        • AnonD-438494
                        • qi8
                        • 09 Sep 2015

                        AnonD-152638, 08 Sep 2015Did you look at the image supplied with this article? It h... more> Did you look at the image supplied with this article?
                        I did.
                        You just glanced it... :-)

                        > It has RGB subpixels.
                        Yes, Captain Obvious.

                        > Samsung does not use a full set of RGB, but Sony did.
                        Sony used the same number of subpixels for each color channel.
                        This does not make it a "full set".

                        > Pixels are usually not placed in a grid, but in a line.
                        Are you seriously saying that display screens are not usually 2D grid of pixels but just a 1D line of 'em? Don't be ridiculous... :-/
                        Pixels are always on a grid.
                        The spacing in vertical & horizontal direction may be different (usually it is, since need to have 3 times more subpixels in one of those), it may not be a rectangular grid (Samsung does that). But it is always a grid.

                        In this case the grid spacing is unusual.
                        It has 2 subpixels for each pixel in horizontal direction, not 3.
                        Usually it goes like this: [RGB][RGB], where each subpixel is 1/3 of pixel width.
                        In Sony's "4K" display: [RG][BR][GB], and each subpixel is 1/2 of pixel width.
                        There are just 2 subpixels of each color for every 3 pixels...

                          • ?
                          • Anonymous
                          • 3Wm
                          • 08 Sep 2015

                          how come you allways try and scare people away from great phones and when it comes to iphone or samsung nothing.. even with all its flaws....nothing... R u sponsered by them or samsung????????????????

                            • S
                            • Slayer
                            • nE8
                            • 08 Sep 2015

                            HomerS, 08 Sep 2015The Sony Z5 Premium can't render any 4K content, besides 4k... moreYou may want to take that up with the Advertising Standards Agency! Law you can't wrongly advertise a product and state it is something it isn't. The screen is 4K, advertised as such and subject to you having 4K content will render it as such. It is supposed to upscale non 4K items too, which I am not sure I care for. Stop trolling and stfu if you have nothing meaningful to say please.

                              • ?
                              • Anonymous
                              • ibp
                              • 08 Sep 2015

                              IO, 08 Sep 2015100% agree with you. Where do you test the phone? How can you agree the troll said,if you never test it or review the real device?

                                • ?
                                • Anonymous
                                • ibp
                                • 08 Sep 2015

                                HomerS, 08 Sep 2015The Sony Z5 Premium can't render any 4K content, besides 4k... moreYou should wait the test result and don't speak for your own cool.

                                  • I
                                  • IO
                                  • 3YY
                                  • 08 Sep 2015

                                  HomerS, 08 Sep 2015The Sony Z5 Premium can't render any 4K content, besides 4k... more100% agree with you.

                                    • ?
                                    • Anonymous
                                    • 3YY
                                    • 08 Sep 2015

                                    Anonymous, 08 Sep 2015Yawn. This isn't a Crapple article. Talk about gimmicks? Yo... moreYeah btw IOS is 64 bit OS that works with 64 bit hardware not a 64 bit hardware that works with 32 bit OS lmao.

                                    PS. I'm an Android power user S6,G4,note 5 and iPad Air 2

                                      • ?
                                      • Anonymous
                                      • 3YY
                                      • 08 Sep 2015

                                      Anonymous, 08 Sep 2015Yawn. This isn't a Crapple article. Talk about gimmicks? Yo... moreWhen you understand massive hardware is nothing without optimized software then will talk.

                                        • D
                                        • AnonD-152638
                                        • mhB
                                        • 08 Sep 2015

                                        AnonD-438494, 08 Sep 2015So... it looks like Sony where unable to make it an actual ... moreDid you look at the image supplied with this article?
                                        It has RGB subpixels.
                                        Samsung does not use a full set of RGB, but Sony did.
                                        Pixels are usually not placed in a grid, but in a line. Samsung does use other pixel arrangements.