Sharp not even joking, announces 5.5-inch 4K IGZO display with mind-blowing 806ppi pixel density

Sharp not even joking, announces 5.5-inch 4K IGZO display with mind-blowing 806ppi pixel density
Like it or not, 4K smartphone displays are heading towards us, and there's nobody left to stop them! After Samsung casually hinted at 4K AMOLED displays for the upcoming Galaxy Note 5, Japanese purveyor of IGZO screens and border-less smartphones Sharp climbed on the stage to announce the world's first 5.5-inch mobile display with a 2160 x 3840 pixels Ultra-HD (4K) resolution. The panel is scheduled for mass production in 2016, and comes with a mind-boggling pixel density of 806 pixels per inch. 

Looking a little ahead, the announcement is made even crazier by the perspective of a non-too distant future, where smartphone displays have reached 8K (4320 x 7680) resolution - that's 16 times as many pixels as ye olde 1080p display, as well as the resolution employed for top-end full dome theater projections! If you think we've finally lost it, well, LG is allegedly making an 8K 27-inch display for Apple, so shrinking it down to phablet-size is a matter of time and technological progress.

Still, it's only 2015, and we're "only" enjoying 1440p resolution displays on our high-end Android devices. You'd be forgiven if you can't quite figure out the practical purpose of 4K smartphone screens, seeing that those 2K displays we mentioned are already considered "overkill" by many consumers and manufacturers alike. While that's perfectly reasonable, we can still see 4K screens offering two very nice, but not necessarily essential benefits. First, they can reproduce 4K video content pixel for pixel, which means extremely sharp and lush visuals fired at your entertainment-hungry eyeballs at a close distance. And second, 4K displays will make VR headset experiences absolutely sublime, as the greatly enhanced pixel density removes the screen-door effect, and therefore provides better immersion. 

Other than that, we can only hope battery technology will catch up with the demands of 4K displays soon enough, as ultra-high definition should not compromise daily usage.


via techblog.gr (Translated)

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101 Comments

2. iDi0T

Posts: 5; Member since: Dec 30, 2014

Whats the fking point? You wont recognize the difference between QHD and 4K on a 5.5 inch screen. Only thing this does is reduce the performance and battery life of the device.

10. galanoth

Posts: 428; Member since: Nov 26, 2011

Mobile VR headsets. Next level Android gaming. Not every phone will have 4K displays. So there's always options for people who don't want it. But there should be an option for people who do want it. For example, people don't like 2560 x 1440 displays on a phone. There are plenty of 1080 and even 720 alternatives.

80. chebner

Posts: 249; Member since: Oct 17, 2011

Mobile VR headsets. - So put them in mobile VR Headsets, not phones. Next level Android gaming. - What's the point of having all those pixels if you can't notice a difference? Not every phone will have 4K displays. - I hope you're right. And I hope there will be flagship phones without 4K displays. The problem is with most phones when you step down from the highest resolution, there is normally a step down in all the specs. I don't understand the race for ever higher resolution in phone screens. When it comes to technology, I'm not typically one to settle for good enough. If you can no longer distinguish a visual difference from a normal viewing distance, then what's the point? If there were no negatives associated with it then I'd say who cares. But we've finally gotten to the point where batteries will last a full day under normal to heavy usage. So now let's increase the resolution to use extra power? Again, why, if there is no benefit. Progress for progress' sake is not progress. Wouldn't you prefer OEMs put money into developing something that you would actually get some benefit from?

91. ILikeBubbles

Posts: 525; Member since: Jan 17, 2011

exactly!!! also along with screen size.. i know it's more of a caveat to your statement but citing the new Asus Zenfone 2.. the 5.5" version has twice the specs of the 5" version... the market is no longer about "variety" or "choice" again.. if you want the best specs you have to follow the 'popular' option.. even if it's not what you want.

100. Dinged

Posts: 37; Member since: Jan 12, 2012

Mobile VR headsets (such as Cardboard)- the phone goes into the frame. 4K displays will be great for areas/cultures where people don't consider flat screens bc of humidity,economic or space concerns (India and southeast asia). This can be a huge driver of technology for people who have different requirements than westerners.

94. vuyonc

Posts: 1089; Member since: Feb 24, 2014

Next level Android gaming? Which games run above native 1080p?

15. rubyonrails3

Posts: 372; Member since: Oct 01, 2014

Why everyone complaints. let them be :)

20. JaneChenLong

Posts: 374; Member since: Mar 18, 2015

Actually 4K is make sense for those who don't play demanding 3D games. I could read the text better, and since it doesn't do heavy 3D calculation, it doesn't reduce performance. and since it's mostly displaying 'easy' image, it also won't reduce battery life (screen size / brightness level have more impact on battery life)

28. joey_sfb

Posts: 6794; Member since: Mar 29, 2012

Less headache if the fonts are clear and sharp.

79. chebner

Posts: 249; Member since: Oct 17, 2011

I guess I didn't realize text was blocky on a 1080p phone. You must have some super insane vision if you can notice the difference between QHD and 1080p on a phone. Superman is jealous! Unless of course you regularly hold your phone up to your nose. Didn't you're mom ever tell you not to sit too close to the TV? Same comment applies here. So if there's no 3D processing involved then the higher resolution won't impact battery life? I guess all those pixels get filled for free? Does the GPU not run off of the battery? And yes the GPU is used, whether it's 2D or 3D, though of course 3D would require more processing. Either way your comment is ridiculous!

23. drunkenjay

Posts: 1651; Member since: Feb 11, 2013

doesnt have to be. for a nomal phone, no. for a phone that can also be used as a vr set, yes

29. Kruze

Posts: 1285; Member since: Dec 30, 2014

You're right. But at first, people will say the same thing as yours, but once Samsung's flagship go 4K, people will be like "OMG, my body is ready, Sammy! Can't wait!" and then the 4K trend on phones will begin. This is how tech goes.

45. dimas

Posts: 3324; Member since: Jul 22, 2014

Gonna make 1080 displays more affordable. Let few people have their QHD premium expensive phones so that the majority will have top quality device sporting 1080s with lower prices.

3. Neros

Posts: 1016; Member since: Dec 19, 2014

No mobile gpu would cope with it

16. rubyonrails3

Posts: 372; Member since: Oct 01, 2014

You really think that? in 2016 everything will be different. moreover why not GPU can when SD805 can drive a 4K external display. I can't be certain but SD820 sounds like be the answer to it. (hope SD820 don't curse every OEM who use it like 810 did )

47. gelullabarr

Posts: 7; Member since: Dec 12, 2013

SD820 uses Kyro cores, made by Qualcomm, not ARM cores that are used in fail SD810. Actualy SD820 is the first octacore(4+4) CPU made 100% by Qualcomm.

30. TyrionLannister unregistered

Games run at 1080p or lower regardless of resolution. I don't think it'll be a problem. Regarding handling UI, it'll be a no problem for even the 810. Resolution is unnecessarily bashed upon. Even though I agree that there's no point of UHD on a phone, but unless it consumes battery too fast, I find no reason to hate it.

37. vincelongman

Posts: 5653; Member since: Feb 10, 2013

Exactly, E.g. plug a PS4 into a 60+ Hz 4K TV It still renders games in 1080p, 900p or 720p, at 60 or 30 fps

41. Neros

Posts: 1016; Member since: Dec 19, 2014

Your gpu will be still forced to upscale the textures. So it does impact the performance.

43. material

Posts: 80; Member since: Jan 08, 2015

it will upscale the 1080p output ,and not the textures individually.

60. TyrionLannister unregistered

Upscale barely takes 0.1% GPU. You can derive it. For each second i.e. 60 frames, it has to do approx 200 million integer calculations. Now for any GPU > 200 GFLOPS, this will be less than 0.1 % load . Upscale takes way less power than actually calculating and rendering textures.

4. judik971

Posts: 84; Member since: Sep 26, 2013

But it's useless Better use that resolution on a tablet

9. JaneChenLong

Posts: 374; Member since: Mar 18, 2015

Better resolution than most 1366x768 that notebook have.

48. TheStanleyFTW

Posts: 252; Member since: Feb 20, 2013

Man getting my first 1080p laptop was a big relief. 768p screens are simply put "s**t" compared to 1080p on a 15 inch display :D

66. JaneChenLong

Posts: 374; Member since: Mar 18, 2015

agree!!! I really hate the 768p resolution, and I think 768p on notebook is like having a 320x480 resolution on a smartphone.

7. galanoth

Posts: 428; Member since: Nov 26, 2011

Mobile VR. Cant wait.

8. arch_angel

Posts: 1651; Member since: Feb 20, 2015

A 4k/uhd display on a phone is ridiculous if you ask me.

11. nctx77

Posts: 2540; Member since: Sep 03, 2013

Smartphones have officially plateaued!

12. gaming64 unregistered

Major battery eater

72. tedkord

Posts: 17198; Member since: Jun 17, 2009

That's what say said when they went from WVGA to 720p, and from 720p to 1080p, and from 1080p to 1440p. And at each step, it turned out to be a non event, battery wise.

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