clearblack

Though Microsoft’s purchase of Nokia’s Devices and Services division was announced late last year and completed in April, the fate of Nokia’s trademark technology brands has still been unknown. Brand names like Lumia smartphones, ClearBlack displays and PureView camera technology have become synonymous with innovation and quality, much like the Nokia name itself.

And though the Nokia name will eventually be disappearing from the faces of Windows phones, it looks like some of the those mainstay Nokia brand names, along with a few surprising ones, will continue on with Microsoft.

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If you didn’t like the dramatic Nokia Lumia 2520 video, maybe this one is better. It shows off the excellent outdoor readability of the Lumia 2520 with a nice animated story that almost makes us cry. Nokia tells us they worked with Blue Zoo, a BAFTA award winning animation studio based in central London. Watch the video after the break.

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We were all impressed with how the Nokia Lumia 900 tackled those sunny days by using ClearBlack Technology. Technology that Nokia has worked to improve and will give the Lumia 920's screen better outdoor performance.

Part of ClearBlack's advantage in outdoor use is the reduction in screen reflections. Reflections that hinder performance on those bright sunny days. Building on the ClearBlack technology, Nokia has added two improvements into the mix that will improve the screen's performance.  Nokia has added a high brightness mode which increases the screen brightness by 20%. This mode kicks in only in extreme bright conditions to help make things viewable.

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In what looks to be another nice win under the belt of the Lumia 900, Nokia took away the top prize in DisplayMate's shootout of displays for tablets and smartphones.

The test involves shinning light on to the displays with various levels and then putting the screenshots onto their "Master Photo Grid" for direct comparison. For a more nuanced description, we refer to you DisplayMate:

"We photographed 4 Tablets and 5 Smartphones inside an Integrating Hemisphere using a powerful light source that uniformly illuminates the displays from all directions from 0 lux (Absolute Darkness) up through 40,000 lux (Indirect Sunlight), which is very bright. Direct Sunlight at noon is a blinding 100,000 lux."

We're just going to go ahead and defer to them on the science part.

The results have the Lumia 900 at the top with the Galaxy S just edging out the iPhone 4S for number two. There's no doubt that what contributed to the win for Nokia was their ClearBlack polarizng screen technology, which filters out the bad waves of sunlight, helping reduce glare and keeping the AMOLED colors super vibrant (some may say too vibrant.

In fact, DisplayMate said that Nokia Lumia 900 had the lowest reflectance of any device on the market, meaning that the ability for the display to reflect light and cause a glare was markedly reduced on the AT&T "hero" phone compared to the competition.

Overall, it's a great win and a great headline for Nokia.

Source: Displaymate; via: the Verge

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One of the many things that stood out in our review of the AT&T Nokia Lumia 900 is how good the screen looks. Nokia is using ClearBlack display technology with the Lumia 900 that definitely makes a difference.  But why?

In a recent interview with CNET Raymond Soneira, president of DisplayMate Technologies, explained why ClearBlack display technology gives the Lumia 900 such a nice screen.  Soneira explains that reflectance of a screen can degrade the sharpness and color quality you see. It may be nice to touch up your make-up or comb your hair from your Windows Phone screen's reflection but it doesn't help with screen quality.

Nokia manages to address this issue with the ClearBlack technology and circularly polarized glare suppressing optics. The polarized optics disrupts the reflections, minimizing tier influence on image quality. According to Soneira,

"The Lumia 900 has the lowest screen reflectance of any mobile device I have ever measured, 4.4%, which is almost forty percent lower than the iPhone 4."

DisplayMate Technologies also found the reflectance rating of the Lumia 900 to be noticeably better than that of the new iPad which is rated at 9.9%. Science asides, the bottom line is that the Lumia 900's screen looks really good.

source: Cnet

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Nokia has been known to do some very innovative things with their phones especially in creating new technology (see their flexible display).  So it's with great interest to see them explain their "ClearBlack" screen system to the masses--or at least attempt to.

For those who don't know, Nokia uses ClearBlack screens on a few of their phones, including the Lumia 710, 800 and 900 series. In simplest terms, it's a circular polarizer that sits between the GorillaGlass and LCD/AMOLED screen, resulting in glare-elimination, higher contrast and better readability due to the elimination of reflected light. It is similar to wearing polarizing sunglasses and that effect but is much more complicated.

In the post on Nokia Conversations, they explain the multiple layers in ClearBlack and what they do:

There’s both a linear polariser and retardation layers between the surface of your phone and the display. When light hits your screen, this is what happens:

  1. It hits the linear polariser, this vertically polarises the light. (Polarising means – roughly – aligning the wave vibration in a particular direction).
  2. Then it hits the circular polariser retardation layer. This converts the light again, making it right-circularly polarised
  3. Then it hits the screen and bounces off it, switching the rotation of the light to leftist.
  4. It goes back through the retardation layer. When this happens, the light becomes horizontally polarised.
  5. Finally, it hits the linear polariser, since the light is horizontally polarised at this point it can be blocked entirely by this optical solution.

We almost wrapped our head around that explanation. It's certainly complex and from our usage, we really like the result--seriously, go check out the Lumia 710 at your local T-Mo store to get an idea.  Anyways, it's great to see such unique and proprietary technology coming to Windows Phones.

Source: Nokia Conversations; Thanks, Residing, for the heads up

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