The Nokia Lumia 920 PureMotion HD+ screen explained: is this the best phone for Snooki?

The Nokia Lumia 920 PureMotion HD+ screen explained: is this the best phone for Snooki?
Phone makers love 'em fancy names for every new alteration in technology they introduce with the next best thing. In display tech, we have "Retina" and "Resolutionary" on the iOS side, and "HD xxx Super", "Super xxx Plus", "True HD" and so on for the Androids. Nokia jumped in yesterday, calling the screen technology it has developed for its new flagship Lumia 920 PureMotion HD+.

Now we know HD stands for high-res screens with at least 1280x720 pixels, and the Plus usually indicates an RGB "stripe" matrix arrangement in the case of Samsung, while LG used it in the case of Optimus G to indicate in-cell touch panel. The new Lumia certainly belongs to the high-res RGB crowd, but what about PureMotion?

Nokia outed the white paper of its new screen technology, where the "+"sign stands for the WXGA pixel count, while PureMotion apparently stands for an aggregate of technologies that address the weakest points of mobile capacitive displays that have been around since they became mainstream with the iPhone introduction in 2007. Now, five year later, Nokia is trying to resolve all those issues in one fell swoop, and called it the PureMotion HD+ display. The "Pure" part winks at the PureView marketing term, of course, which has already been proven to work in enthusiast mobile devices like the 808 PureView.

With the Lumia 920's large 4.5" high-res screen, Nokia tried to address at once several issues that plague smartphone displays - poor sunlight visibility, motion blur, and the inability to operate them with anything but bare skin. Let's not forget also that at 332ppi, only a 4.3-incher like the Xperia S (342ppi) beats its pixel density, yet Nokia went much further with the 15:9 display than simply being satisfied with that, adding a number of important innovations to it. Let's delve into how the Finns did it.

Sunlight visibility

The most pressing issue with smartphone displays, once they hit the HD resolution mark, we'd peg to be their outside visibility, especially under direct sunlight. To make a screen visible outside, you need great performance in one of two components - brightness or light reflection ratio. The iPhone 4S screen is brighter than the Super AMOLEDs in the Galaxy S II/III, but Samsung uses a layer with very low light reflectance, which improves its outside visibility. 

The Nokia Lumia 900, on the other hand, has an even lower reflection ratio of its OLED screen, thanks to the ClearBlack polarization filter of Nokia, making it the best display for outside usage in independent comparisons. This comes to show that a combinatioin of both high brightness and low reflectance ratio will yield the best results, and that's exactly what Nokia did with the PureMion HD+ display of the Lumia 920.

The brightness is listed as 600 nits, which is 20-30% more than your average mobile display, but Nokia says the display automatically goes into peak brightness mode under direct sunlight, which it says is the highest brightness of all WXGA mobile screens. Now we don't know if peak brightness means something more than 600 nits, like on the Xperia P, which shoots up to 935 nits, but even if the peak luminance is 600 nits, Nokia adds a new version of ClearBlack on top for helping things out further.

The ClearBlack polarization filter here not only brings screen reflectance ratio to a minimum, but an algorithm also adapts the colors and contrast to the ambient lighting, elevating the Lumia 920's sunlight visibility to new heights. To make a point, Nokia puts the low-reflectance Lumia 900 and a prototype Lumia 920 side by side under direct sunlight, and we can indeed notice more detail visible on the Lumia 920. This will help with everything when using the phone outside, including trying to dial someone in a hurry and not seeing anything clearly due to reflections, as so often happens. Of course, these are promo shots, so we'll dig more when we get a final unit.



PureMotion

Not that we've noticed much, if any, motion blur on our handsets while scrolling or watching movies, but Nokia claims your average mobile display pixel response rate is 23ms, while a rendered frame lasts 16.7ms, i.e. the pixels don't have time to go with the flow, resulting in blur and artifacts with fast moving objects on the screen, for example. 

The way Nokia is overcoming this is applying temporary high voltage to speed up the individual pixels, essentially putting the whole panel in overdrive mode. Lab results show pixel transition taking sub-9ms this way, i.e. plenty of time to do one frame and get ready for another without any lag and blur. This way smooth 60fps rendering is achieved, Nokia says, regardless of how speedy the action is on the Lumia 920 display. Good stuff, but we have to again check with a final unit how much of a difference this makes in reality.



Supersensitive touch

The Nokia Lumia 920 touchscreen is so sensitive, that once you hit that unlock button, you can demonstrably operate it not solely with the tip of your bare fingers, but also with nails, gloves, mittens, and even certain pens, no need for a special stylus. This finally combines the best of both resistive and capacitive touchscreens in theory, so you no longer have to use your nose on the ski lift when you get a call. The technology is developed by Synaptics, which you know from your laptop's touchpad, and called ClearPad 3250:


Nicole "Snooki" Polizzi will be glad the Lumia 920 exists too, as the classy way she pimps her eagle nails must not bode well for comfortable touchscreen operation. We kid, but Nokia indeed says nails are now possible, as well as some pens, but whether this hyper sensitive touch layer can lead to "butt dialing" in certain scenarios remains to be seen after we spend more time with the handset.


In the end we have to conclude that Nokia apparently threw a lot of the research that is going on in its labs into the Lumia 920, and we are glad the PureMotion HD+ screen was one of the recipients, since sunlight visibility and usability of capacitive touchscreens with something else than bare finger tips were areas that could definitely see improvement.

Related phones

Lumia 920
  • Display 4.5" 768 x 1280 pixels
  • Camera 8.7 MP / 1.3 MP front
  • Processor Qualcomm Snapdragon S4 Plus, Dual-core, 1500 MHz
  • Storage 32 GB
  • Battery 2000 mAh(10.8h 3G talk time)

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53 Comments

1. jubbing

Posts: 150; Member since: Aug 20, 2008

Nice.. now to see how it holds up in the real world when I get my paws on it

35. Smart

Posts: 76; Member since: Aug 20, 2011

tell me about it......have been using nails,gloves and what not on my reistive touch phones since 2005.... grow up capacitive screens..... lol....just doodling around.... yeah i want to grab one and play around one too....

41. AeroPrime

Posts: 175; Member since: Feb 21, 2011

I have commented Before this lumia 920 is actually a masterpiece.

44. eiyoy009

Posts: 57; Member since: Jun 01, 2011

truly the most inovative one... floating lens puremotion with clearblack 2000 mah battery lyf 1.5 ghz dual core s4 chip name it!! its batter than galaxy s3....

2. XPERIA-KNIGHT unregistered

best phone for snookie......and every other female LOL this is a womens phone jus like the iphone........LOL get a real phone .......ANDROID POWER!

13. serious9010

Posts: 254; Member since: Jul 20, 2012

1. Are you suggesting this is less of a phone because of your personal preferences, and try to impose your opinion on others? 2. Are you making a sexist remark about how women are lesser humans and thus don't use what you call "a real phone"?

29. sbr999

Posts: 79; Member since: Jun 05, 2012

Dude, you're making us, normal android fans, look like some rabid, ignorant and uninformed fanbois.

30. haseebzahid

Posts: 1853; Member since: Feb 22, 2012

you are clearly embarisment to the Android oh God what kind of people use Android this is very 3rd class comment i ever saw

32. jubbing

Posts: 150; Member since: Aug 20, 2008

What an idiot...

43. AeroPrime

Posts: 175; Member since: Feb 21, 2011

I don't think this phone is for snookie.... is just an amazing super phone... this is great

3. imsickwithphone

Posts: 76; Member since: May 17, 2012

I hope the screen tech. is not fake like...............

4. fatun

Posts: 3; Member since: Aug 09, 2012

its fake, Nokia lies as usualy

31. haseebzahid

Posts: 1853; Member since: Feb 22, 2012

its probably too good for ur brain to except real just like u never thoguht 41mpx was real

5. whysoserious

Posts: 318; Member since: Jul 20, 2012

Everytime I look at images that involves Nokia, no matter how hard I resist, the word "fake" keeps running at the back of my head. Darn it!

10. chaoticrazor

Posts: 2347; Member since: Aug 28, 2012

then dont look, and comment either. you keep thinking fake, others will actually try the phone then decide

14. whysoserious

Posts: 318; Member since: Jul 20, 2012

My goodness why didn't I think of that?! You. Sir. Are. Briliant!

17. serious9010

Posts: 254; Member since: Jul 20, 2012

because, I like my nickname that way.

21. muhsen

Posts: 281; Member since: Jun 07, 2012

does the word" copy cat" keep running at the back of ur head with images that involves samsung?! well if it doesn't ,u probably have some mental issues

23. Mobile-X-Pert

Posts: 565; Member since: Dec 20, 2010

Nokia already showed a real video taken by the Nokia lumia 920. Besides that Apple and other companies have done it before, but they just don't tell you.

6. phitch

Posts: 214; Member since: Mar 06, 2012

If Nokia would just make an Android Phone. :( The homescreen on those new WP8 phones look like jumbled mess of tiles and images.

9. SleepingOz unregistered

Tiles look boring!

26. andro.

Posts: 1999; Member since: Sep 16, 2011

Tiles are a massive deterrent,the screen could be 10 times better than anything available even next year but most would pass it on over the tiles alone

53. TechCheque

Posts: 10; Member since: Nov 25, 2012

I'd rather just be quiet about user experience and design comments if i was an Android fanboy, it is just a world where Android has no business

7. redmd

Posts: 1926; Member since: Oct 26, 2011

I don't get the snooki part.

15. serious9010

Posts: 254; Member since: Jul 20, 2012

Snooky is a Jersey Shore (reality show) participant. She's a woman with long nails. She'd probably enjoy this phone as she would be able to type despite her long nails which would normally keep her from doing so.

11. PAPINYC

Posts: 2315; Member since: Jul 30, 2011

I'm sure as long as the phone vibrates Snooki will be overcome with elation. The fact that she'll be able to use her nails will only bring her much more gratification.

18. redmd

Posts: 1926; Member since: Oct 26, 2011

Oh I get this part. lol

20. CX3NT3_713

Posts: 2349; Member since: Apr 18, 2011

Seems legit to me .. :-)

22. voxmarc

Posts: 336; Member since: Aug 22, 2012

mine is more sensitive...just air blow it will respond immediately....and make no mistake about it snookie will love the sensitiveness...

24. speckledapple

Posts: 902; Member since: Sep 29, 2011

So bottom line its one bad ... set of functions in one phone. Also they have taken the time to improve the device and tech itself rather than just focus on adding any new tech they can find. That is a smart company.

* Some comments have been hidden, because they don't meet the discussions rules.

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