Posts Tagged ‘DisplayPort’

CES 2015 In The Rearview Mirror

After all the PR hype and anticipation, the 2015 International CES has come and gone, leaving me to edit over 1500 photos and a bunch of videos and sift through stacks of press releases to see what was really significant about the show…and what was just fluff.

Before I drill down to make my top picks, I should point out some trends that have been building for a few years. We all know that the majority of our electronic gadgets (phones, tablets, home alarm systems, televisions, computers, cordless phones, and so on) are manufactured in China and Southeast Asia.

Still, the expanding CES footprint of Chinese brands (Haier, TCL, Hisense, Changhong, Konka, Skyworth) takes some getting used to. So does the shrinking footprint of former Japanese powerhouses like Sony, Sharp, and Toshiba. There is a profound shift in power happening in the CE world as the center of gravity moves farther away from Tokyo and Osaka past Seoul to Shenzen and Shanghai.

Another unmistakable trend is the decline in prices for a wide range of CE products. “Connected health” was a big deal at least year’s show, but is there really any news to be found in $60 Fitbits? Or $149 home security systems? Or $125 32-inch televisions?

Speaking of televisions, they are becoming less important in the overall scheme of things with each passing year. 4K Ultra HD was all the rage last year – this year, everyone had 4K televisions, and many models were equipped with quantum dot backlights for high dynamic range. Of course, there was no shortage of curved televisions in all sizes.

There was a big emphasis on high dynamic range 4K in Samsung's booth.

There was a big emphasis on high dynamic range 4K in Samsung’s booth.

 

But TCL had HDR too, as did a host of other exhibitors.

But TCL had HDR too, as did a host of other exhibitors.

 

The facts are these: Changhong and TCL can make a large, curved 4K LCD TV with high dynamic range just as easily as Sharp, Samsung, and Panasonic. In some cases, the LCD panels used in these TVs are all coming from the same factory.

Samsung made a big splash this year with their S UHD television line, but they’re using quantum dots just like anyone else. LG showed both quantum dots and their new M+ technology that adds white pixels to an LCD matrix to boost brightness. TCL is selling QD-equipped TVs in China and expects to launch them on these shores this year.

Perhaps surprisingly, LG decided to make a big push for OLED technology, unveiling five new Ultra HD models at the show. While the Chinese also showed OLEDs (as did Panasonic), LG appears to be “all in” with their white OLED technology, claiming manufacturing yields as high as 70%. Well, someone’s got to pick up the torch that plasma dropped in 2013.

LG now has a flexible OLED TV to suit your mood - flat (bad day at the office?) or curved (if you're feeling warped!).

LG now has a flexible OLED TV to suit your mood – flat (bad day at the office?) or curved (if you’re feeling warped!).

 

Who says we have to be stuck with two color choices for refrigerators? Not Changhong.

Who says we have to be stuck with two color choices for refrigerators? Not Changhong.

 

For many of these manufacturers, appliances and white goods are taking on a more important role in contributing to the bottom line. The margins are better on high-end refrigerators and washer-dryer sets for the likes of Samsung and LG, even though consumers don’t turn them over as often as televisions. For Panasonic, beauty products are an important income stream.

Cameras and camcorders are still holding their own against mobile phones, surprisingly. I entered the CES arena equipped with both a new Samsung Galaxy 5 phone and a Panasonic Lumix ZS40 camera. While the Galaxy 5 does take some great pictures under ideal conditions, it was no match for the 30:1 optical zoom lens (Leica glass) on the Lumix – the latter allowed me to shoot under, around, and over people to get the photos I needed.

Speaking of mobile phones and tablets, there wasn’t much news to be had at the show. LG showed its updated LG G-Flex 2 and Samsung had a crowd around its Galaxy family of phones and tablets, but there just wasn’t the “BYOD buzz” we’ve seen in previous years. The 5” to 5.5” screen size seems to be a sweet spot for phones now – 6-inch models were scarce in Vegas.

LG's G-Flex 2 smartphone still has the curve, but has actually gotten smaller with a 5.5

LG’s G-Flex 2 smartphone still has the curve, but has actually gotten smaller with a 5.5″ screen.

With every possible connection moving to Wi-Fi, range extenders are the hot item right now.

With every possible connection moving to Wi-Fi, range extenders are the hot item right now.

 

Connecting all of this stuff together made for a more compelling story from my perspective, especially as far as wireless technology goes. I saw more demos of wireless video streaming, wireless appliance control, wireless security systems, and wireless display connectivity at CES than at previous shows.

The 802.11ac channel bonding protocol is becoming increasingly important for making this stuff work in the 5 GHz band. And the wide-open spaces at 60 GHz are starting to attract everyone’s attention – having 2 GHz channels to play with is a lot more appealing for making high bitrate connections than fighting the congestion at 2.4 and 5 GHz.

Display interfaces are getting fast – a lot faster – and relying on compression for the first time. And now we’re starting to see the boundaries blur between small, high-performance mobile display interfaces and full-sized versions, which leads me to wonder why we need so many versions of HDMI and DisplayPort in the first place.

I’d be remiss if I didn’t mention the growing number of automobile manufacturers who set up shop in the North Hall every year. It reminds me of the New York Auto Show, with the likes of Hyundai, VW, Ford, Fiat Chrysler, and Audi showing off their latest high-tech “connected” automobiles that can do everything from mirror your smartphone’s display to recognize speech commands, navigate flawlessly, and even drive themselves.

This McLaren coupe is so smart, it doesn't even need you to drive it. (So how do you impress your friends?)

This McLaren coupe is so smart, it doesn’t even need you to drive it. (So how do you impress your friends?)

It seems logical that Toyota would come out with a hydrogen-powered car. After all, the 2nd most abundant thing in the universe after hydrogen is the Toyota Camry, (Or it just seems that way...)

It seems logical that Toyota would come out with a hydrogen-powered car. After all, the 2nd most abundant thing in the universe after hydrogen is the Toyota Camry, (Or it just seems that way…)

 

And there were plenty of alternatives to gasoline-powered engines to seen, from BMW’s i3 electric car to Toshiba’s Mirai hydrogen fuel cell vehicle. All equipped with Bluetooth, 802.11, Sirius, and in some cases, user-customizable dashboard displays using flexible displays (important to survive vibration and G-forces).

Quite a bit to take in over three and a half days! What follows is my list (in no particular order) of significant products and trends I spotted in Vegas. Let’s see if they hold up as the year progresses:

High Dynamic Range – as usual, a hot new technology makes its appearance at the show and quickly becomes a buzzword. HDR Ultra HDTVs were shown by numerous manufacturers at CES; none more prominently as Samsung, who made HDR the centerpiece of their Monday press conference with their S UHD line. Virtually all of these TVs use quantum dot technology to boost image brightness and color saturation, and only one (LG) had an alternative path to HDR with M+ technology.

HDR is a key part of the transition to next-generation television. So are wider color spaces, high frame rates, and increasing resolution. Looks like everyone’s getting into the game, including the Chinese. Interestingly, I saw only one demo of Dolby’s HDR technology in the TCL booth (Vizio also has it), so it appears many homegrown solutions are in the works for HDR displays.

LG Display's 65-inch curved OLED TV helps you get over the demise of plasma pretty quickly.

LG Display’s 65-inch curved OLED TV helps you get over the demise of plasma pretty quickly.

 

OLEDS Are Back – at least as far as LG is concerned. Seven new Ultra HD OLED TVs were rolled out at CES with sizes ranging from 55 inches to 77 inches, and one of them can flex back and forth from flat to curved surface mode. A partnership with Harman-Kardon should ensure better audio quality than you hear from typical super-thin televisions. (There were even two models featuring bases made from Swarovski crystal!)

With the demise of plasma, videophiles are still looking for displays that can give them the magic combination of deep blacks, saturated colors, and wide viewing angles. Right now, OLEDs are the only game in town, but they’ve proven to be tricky to manufacture with acceptable yields. LG Display seems to have overcome that barrier with these models (which use IGZO TFTs for pixel switching, by the way) and it will be interesting to see the uptake as 2015 winds on.

Super MHL Is Here: The battle for fastest display interface shifts back and forth between Silicon Image and VESA. DisplayPort fired the first salvo with their introduction of version 1.3, raising the maximum data rate to 32 Gb/s and introducing Display Stream compression for the first time. Now, the MHL Consortium has fired back with Super MHL. MHL stands for Mobile High-definition Link, and in its first iteration, allowed transport of 1080p/60 video over the 5-pin micro USB connector found on smartphones and tablets.

But Super MHL is different – it is a full-sized connector with 32 pins and matches the data rate of DP 1.3. The CES demo showed a Samsung 8K display being driven through Super MHL. How would anyone fit this on a mobile device? Does it replace HDMI 2.0? (It’s a LOT faster and uses DS compression, too.) So many questions to be answered…

Wait - isn't MHL a small connector for mobile devices? Did they put it on steroids?

Wait – isn’t MHL a small connector for mobile devices? Did they put it on steroids?

Hmmm...apparently they did give MHL

Hmmm…apparently they did give MHL “the juice.”

 

Talk To Me: Conexant showed a demo of voice control for TV set-top boxes (change channels, bring up program guide, set DVR recordings) that was leap years ahead of their demo from 2013. This system works exceptionally well in noisy environments and can be used to control other devices, such as room lighting, thermostats, and security systems.

Conexant is looking to sell their technology as a system on chip (SoC) to a wide cross section of manufacturers. The trick had been reliable speech recognition in all kinds of high and low noise environments, something that doomed Samsung’s voice control TVs back in 2012. It appears they’ve finally pulled it off, but the focus has shifted away from TVs to set-top boxes this time around.

I’ll Be Watching You: The EyeTribe of Denmark showed an amazing eye tracking and control system at ShowStoppers that can operate tablets and phones and costs all of $99. Yep, you read that right! While Tobii’s impressive demos have focused on laptops and gaming systems, EyeTribe has gone after potentially the biggest market for eye tracking. How many times have you wished you could operate your mobile phone while your hands were full?

Look, ma! No hands! (Alternate caption: The Eyes Have It...)

Look, ma! No hands! (Alternate caption: The Eyes Have It…)

Is your IP video slow? Sluggish? Does it drop out? Try new Giraffic video for faster streams, cleaner video, and no buffering drop-outs! Available without a prescription.

Is your IP video slow? Sluggish? Does it drop out? Try new Giraffic video for faster streams, cleaner video, and no buffering drop-outs! (Available without a prescription.)

 

Faster Video For All: Giraffic had an intriguing demo of optimizing and speeding up video streaming rates over conventional TCP/IP networks. And it had nothing to do with adaptive bitrate streaming, using H.265 encoding, or AVB protocols. What Giraffic is doing is changing the nature and frequency of HTTP requests. This is the best way I can explain it: Imagine you just sat down with a big piece of chocolate cake and want to eat it as quickly as possible. If you take big bites, you’ll be chewing for a while and some pieces may get stuck in your throat.

But if you start with very small bites (like crumbs) and keep shoveling them in quickly, you’ll finish the cake just as fast – or perhaps faster – than the conventional way of eating. And that’s what Giraffic does – it keeps nibbling at the video stream to ensure continuous delivery, even with 4K content. The company claims they can achieve streaming throughput 200% to 300% faster than conventional video streaming, with no freeze-ups and annoying “buffering” warnings.

4K Blu-ray: Okay, we’ve been waiting for this for some time now. And 4K video streaming has already begun at Netflix and Amazon. But Ultra HD BD is finally out of the gate, although you won’t see it until the fourth quarter of this year. Streaming rates will be on the high side of 100 Mb/s with single and dual-layer discs available. (And yes, high dynamic range will be a part of the equation!) Panasonic showed their prototype of an Ultra HD Blu-ray player at the show. The question is; with all the enhancements coming to streaming, does optical disc matter anymore? Time will tell…

Here's Panasonic's prototype Ultra HD Blu-ray player, chugging along at 108 Mb/s while standing still!

Here’s Panasonic’s prototype Ultra HD Blu-ray player, chugging along at 108 Mb/s while standing still!

 

Now THERE'S an LCD shape you don't see every day! (Except perhaps in the nVIDIA booth...)

Now THERE’S an LCD shape you don’t see every day! (Except perhaps in the nVIDIA booth…)

Circular LCD Displays: This was a breakout year for oddball sizes of LCDs, particularly in the Sharp booth where automotive displays were shown. (LG Display also exhibited circular and curved LCD displays.) Given the drop in TV prices and Sharp’s ever-dwindling market share in TVs, the market for automotive and transportation displays may be a better bet, long-term. Especially given the company’s leadership in implementing IGZO TFTs, which are important for brighter displays with lower power consumption and higher pixel density.

USB Type-C Connectors: VESA had an excellent demo of this game-changing connector, which has a symmetrical design (no need to worry about which way you’ve plugged it in) and can multiplex DisplayPort 1.3 video with high-speed data. USB 3.1 Type-C is seen as the next generation of USB connectors for mobile and portable devices, and by itself, it can move serial data at 10 Gb/s.

SiBEAM Snap Wireless Connectivity: Silicon Image has revived the SiBEAM name (they bought the company in 2011) and implemented their 60 GHz wireless display connectivity into a close-proximity variant. You simply bring two Snap-equipped devices together (like a smartphone or tablet and a matching cradle), and voila – you’ve established a full bandwidth data and display connection that can run up to 12 Gb/s. Plus, the connector can be used for wireless charging.

SI is showing integrated Snap transmitter and receiver chips that would replace USB 2.0 or 3.0 connections. Clearly, they are also targeting USB interfaces that support DisplayPort 1.3 (see USB 3.1 Type-C) and trying to move away from physical display connections. (This was one argument against using MHL to connect to televisions.) But if they’re successful, what happens to MHL? And now that Super MHL has been shown, what happens to conventional HDMI? Stay tuned..

This little bugger is a brand-new USB 3.1 Type-C connector. Look for it to start appearing on mobile devices in 2015.

This little bugger is a brand-new USB 3.1 Type-C connector. Look for it to start appearing on mobile devices in 2015.

It's 27 inches diagonally and offers 5K resolution. Talk about immersive....

It’s 27 inches diagonally and offers 5K resolution. Talk about immersive….

Make a fashion statement and superimpose video over the real world at the same time.

Make a fashion statement and superimpose video over the real world at the same time.

 

Super-wide, high resolution desktop monitors: Seems like everybody had one of these at the show. HP, Dell, LG Display, Samsung, and others showed 27-inch widescreen displays with “5K” resolution (5120×2880 pixels). These monitors also support wider color gamuts and use 10-bit panels (a necessity, given all the 10-bit RGB images they’ll be asked to display). What’s surprising is how inexpensive these monitors are – HP’s Z27Q version will be available in March for just $1300.

Toshiba Glass: The jury’s still out on whether Google Glass is a hit or a bust (I’m leaning toward the latter). But Toshiba, who recently retrenched their television operations to Japan, is all-in with a line of enhanced glasses that employ a tiny projection module to show images on the lens surface. This has been tried before – Epson’s Moverio VR glasses have tiny QHD LCD panels embedded in them – and it remains to be seen if the public will buy into the idea. They do look stylish, though. (And there’s even a pair of safety goggles in the line.)

I’ll close out this report with a few passing thoughts. First, it’s impossible to miss the trends of mass-produced, cheap consumer electronics that are increasingly showing up at CES.  Next, there is hardly any new technology debuting at the show that multiple manufacturers have in short order (and that includes the Chinese).

Whereas voice recognition was big a few years ago, gesture control took its place the past couple of years. But now that Omek (bought by Intel) and PrimeSense (bought by Apple) are absent from the scene, voice recognition has come back. My new Galaxy 5 phone has Samsung voice on it and it works reasonably well. However, it appears that consumers just haven’t jumped on the gesture recognition bandwagon yet.

Remember 3D? I almost got all the way through this report without mentioning it. A few companies still showed it, such as LG, Toshiba, HP, Hisense, Changhong, Ultra D (digital signage), Panasonic, and some gaming companies. Likewise, Google TV was gone this year, replaced by Android TV in such places as the Sony booth. Aside from program guide searches, I’m not convinced that the average TV viewer needs a Google search engine or Android OS on their TV. But I could be wrong.

Cute little guy, isn't he? (Where's my fly swatter...)

Cute little guy, isn’t he? (Where’s my fly swatter…)

Makes the long hours on the show floor worth it.

Makes the long hours on the show floor worth it.

 

Remember drones? I almost managed to skip them as well. There were so many at the show, ranging from behemoths that idled in place overhead while we visited tables at Digital Experience to pocket-sized models with built-in cameras that could zip unobtrusively over a crowd under the control of your smartphone. (I’m waiting for the first pocket-sized EMP generators to appear next year – like electronic bug-zappers.)

Finally, after a day full of press conferences during which there was only about 30 minutes of actual, usable news, I’d like to see a temporary moratorium placed on the words “innovation,” “big data,” “stunning,” “cloud,” “ultra” anything, and in the Chinese booths, “happiness.”

The only thing stunning about Vegas is how expensive cab rides have become. True happiness can only be found at Big Daddy’s Barbecue outside the Central Hall (dee-lish!). “Big Data” should be the name of a blues band, or at least the harmonica player. (Maybe Big Data and The Cloud?)

And I’m sorry, but a floor-mounted pet camera and toothbrushes that sync up to video games are not “innovation.” Cute, yes, but no innovative. (Although the self-powered skateboard I saw that can run up to 16 miles might fall into that category…)

CES 2014 In The Rear-View Mirror

Once again, CES has come and gone. It sneaks up on us right after a relaxing Christmas / New Year holiday. We’re jolted out of a quiet reverie and it’s back to the rush to board at the airport gate, walking the serpentine lines for taxis at McCarran Airport, and “late to bed, early to rise” as we scramble to make our booth and off-site appointments in Las Vegas.

We don’t make them all on time. Some we miss completely. But there’s a serendipity angle to it all: We might find, in our haste to get from one meeting to another, some amazing new gadget we didn’t know about as we take shortcuts through booths in the North, South, and Central Halls.

Or a colleague sends us a text or leaves a voicemail, emphatically stating “you have to see this!” Or a chance meeting leads to an ad hoc meeting, often off-site or over a hasty lunch in the convention center.

My point is this: You “find” as many cool things at the show as you “lose.” For every must-see product that you don’t see, there’s another one you trip over. Granted; many “must-see” products are yawners – you’ve figured it out 30 seconds into your carefully-staged meeting with PR people and company executives, and you’re getting fidgety.

LS Samsung Booth MCU 600p

My best CES discoveries involve products or demos where I can observe them anonymously, without PR folks hovering at my side or staring at my badge before they pounce like hungry mountain lions.

Unlike most of my colleagues in the consumer electronics press, I don’t need to break stories the instant I hear about them. There are already too many people doing that. What’s missing is the filter of analysis – some time spent to digest the significance of a press release, product demo, or concept demo.

And that’s what I enjoy the most: Waiting a few days – or even a week – after the show to think about what I saw and ultimately explain the significance of it all. What follows is my analysis of the 2014 International CES (as we are instructed to call it) and which products and demos I thought had real significance, as opposed to those which served no apparent purpose beyond generating daily headlines and “buzz.”

Curved TV screens: OK, I had to start with this one, since every TV manufacturer at the show (save Panasonic and Toshiba) exhibited one or more curved-screen OLED and LCD televisions. Is there something to the curved-screen concept? On first blush, you’d think so, given all of the PR hype that accompanied these products.

The truth is; really big TV screens do benefit a little from a curved surface, particularly if they are UHDTV models and you are sitting close to them. The effect is not unlike Cinerama movie screens from the 1950s and 1960s. (That’s how I saw Dr. Zhivago and 2001: A Space Odyssey back in the day.)

Toshiba described their version of the 21:9 widescreen LCD TV as having

Toshiba described their version of the 21:9 widescreen LCD TV as having “5K” resolution – and mathematically, it does (I guess!).

This wall of 56-inch curved OLEDs greeted visitors to the Panasonic booth.

This wall of 56-inch curved OLEDs greeted visitors to the Panasonic booth.

Bear in mind I’m talking about BIG screens here – in the range of 80 inches and up. The super-widescreen (21:9 aspect ratio) LCD TVs shown by Samsung, LG, and Toshiba used the curve to great effect. But conventional 16:9 TVs didn’t seem to benefit as much, especially in side-by-side demos.

The facts show that worldwide TV shipments and sales have declined for two straight years, except in China where they grew by double digits each year. TV prices are also collapsing – you can buy a first-tier 55-inch “smart” 1080p LCD TV now for $600, and 60-inch “smart” sets are well under $800 – so manufacturers will try anything to stimulate sales.

Is that the reason why we’re seeing so many UHDTV (4K) TVs all of a sudden? Partially. Unfortunately, there’s just no money in manufacturing and selling 2K TVs anymore (ask the Japanese manufacturers how that’s been working for them), and the incremental cost to crank out 4K LCD panels isn’t that much.

Chinese panel and TV manufacturers have already figured this out and are shifting production to 4K in large panels while simultaneously dropping prices. You can already buy a 50-inch 4K LCD TV from TCL for $999. Vizio, who is a contract buyer much like Apple, announced at the show that they’d have a 55-inch 4K LCD TV for $1299 and a 65-inch model for well under $2,000.

Hisense is building a factory in the U.S. to assemble TVs. And you wondered if they were serious about the North American TV business?

Hisense is building a factory in the U.S. to assemble TVs. And you wondered if they were serious about the North American TV business?

Vizio's 65-inch high dynamic range (HDR) 4K TV was very impressive.

Vizio’s 65-inch high dynamic range (HDR) 4K TV was very impressive.

Consider that the going price for a 55-inch 4K “smart” LCD TV from Samsung, LG, and Sony is sitting at $2,999 as of this writing and you can see where the industry is heading. My prediction is that all LCD TV screens 60 inches or larger will use 4K panels exclusively within three years. (4K scaling engines work much better than you might think!)

And don’t make the popular mistake of conflating 4K with 3D as ‘failed’ technologies. The latter was basically doomed from the start: Who wants to wear glasses to watch television? Not many people I know. Unfortunately, glasses-free (autostereo) TV is still not ready for prime time, so 3D (for now) is basically a freebie add-on to certain models of televisions.

4K, on the other hand, has legs. And those legs will get stronger and faster as the new High Efficiency Video Codec (HEVC) chips start showing up in televisions and video encoders. HEVC, or H.265 encoding, can cut the required bit rate for 2K content delivery in half. That means it can also deliver 4K at the old 2K rates, somewhere in the ballpark of 10 – 20 Mb/s.

Toshiba (like many others) is moving quickly to adopt and integrate HEVC H.265  encoding and decoding into their products.

Toshiba (like many others) is moving quickly to adopt and integrate HEVC H.265 encoding and decoding into their products.

Nanotech's Nuvola 4K media player costs only $300 and delivers the goods.

Nanotech’s Nuvola 4K media player costs only $300 and delivers the goods.

While consumer demand for 4K is slowly ramping up, there is plenty of interest in UHDTV from the commercial AV sector. And Panasonic focused in on that sector almost exclusively in their CES booth. I’m not sure why – there are plenty of inferences here; most significantly, it would appear that Panasonic is exiting the money-losing television business entirely. (Ditto nearby Toshiba, which had similar 4K “applications” showcased and which also did not exhibit a line of 2014 televisions.)

Long story short; you may be buying 4K televisions in the near future whether you want ‘em or not. It’s a manufacturing and plant utilization issue, and if commercial demand for 4K picks up as expected, that will drive the changeover even faster.

As for sources of 4K content; Samsung announced a partnership with Paramount and Fox to get it into the home via the M-Go platform. Comcast had an Xfinity demo for connected set-top-boxes to stream 4K, and of course Netflix plans to roll out 4K delivery this year direct to subscribers.

I’m not sure how they’ll pull that off. My broadband speeds vary widely, depending on time of day: I’m writing this at noontime and according to CNET’s Broadband Speed Test, my downstream bit rate is about 22 megabits per second (Mb/s). Yet, I’ve seen that drop to as low as 2 – 3 Mb/s during late evening hours, when many neighbors are no doubt streaming Netflix movies.

Even so, HEVC will definitely help that problem. I spoke to a couple of Comcast folks on my flights out to and back from CES, and they’re all focused on the bandwidth and bit rate challenges of 2K streaming, let alone 4K. More 4K streaming interface products are needed, such as Nanotech’s $300 Nuvola NP-H1, which is about the size of an Apple TV box and ridiculously simple to connect and operate.

LG's got a 77-inch curved OLED TV that can also flex. (Why, I don't know...)

LG’s got a 77-inch curved OLED TV that can also flex. (Why, I don’t know…)

nVidia built an impressive 3D heads-up display into the dash of a BMW i3 electric car.

nVidia built an impressive 3D heads-up display into the dash of a BMW i3 electric car.

Oh, yeah. I should have mentioned organic light-emitting diode (OLED) displays earlier. There were lots of OLED displays at CES, ranging from the cool, curved 6-inch OLED screen used in the new LG G-Flex curved smartphone to prototype 30-inch OLED TVs and workstation monitors in the TCL booth and on to the 55-inch, 65-iunch, and even 77-inch OLED TVs seen around the floor. (LG’s 77-inch offering is current the world’s largest OLED TV, and of course, it’s curved.)

OLEDs are tricky beasts to manufacture. Yields are usually on the low side (less than 25% per manufacturing run) and that number goes down as screen sizes increase, which explains the high prices for these TVs.

And there’s the unresolved issue of differential color aging, most notably in dark blue emitters. With current OLED science, you can expect dark blue emitters to reach half-brightness at about 5,000 hours of operation with a maximum brightness of 200 nits. Samsung addresses this quandary by employing two blue emitters for every red and green pixel on their OLED TVs, while LG has the more difficult task of managing blue aging in their white OLED emitters.

Several studies over the past three years consistently show people hanging on to their flat screen TVs for 5 to 7 years, which is likely to be a lot longer than 5,000 hours of operation. Will differential color aging rear its ugly head as early adopters shell out close to $10K for a 55-inch OLED TV? Bet on it.

Turns out, there’s another way to get wide color gamuts and saturated colors: Quantum dots. QDs, as we call them, are inorganic compounds that exhibit piezoelectric behavior when bombarded with photons. They emit stable, narrow-bandwidth colors with no drift, and can do so for long periods of time – long enough to work in a consumer television.

3M featured its quantum dot film (QDF) in several demos. An LCD TV equipped with it is at the top of the picture.

3M featured its quantum dot film (QDF) in several demos. An LCD TV equipped with it is at the top of the picture.

This prototype WiHD dongle turns any smartphone or tablet equipped with MHL or Micro HDMI interfaces into a 60 GHz wireless playback system.

This prototype WiHD dongle turns any smartphone or tablet equipped with MHL or Micro HDMI interfaces into a 60 GHz wireless playback system.

QDs are manufactured by numerous companies, most notably Nanosys and QD Vision in the United States.  The former company has partnered with 3M to manufacture an optical film that goes on the backside of LCD panels, while the latter offers Color IQ optical components that interface with the entire LED illumination system in edge-lit TVs.

Sony is already selling 55-inch and 65-inch 4K LCD TVs using the Color IQ technology, and I can tell you that the difference in color is remarkable. Red – perhaps the most difficult color to reproduce accurately in any flat-screen TV – really looks like red when viewed with a QD backlight. And it’s possible to show many subtle shades of red with this technology.

All you need is a QD film or emitter with arrays of red and green dots, plus a backlight made up of blue LEDs. The blue passes through, while the blue photons “tickle” the red and green dots, causing them to emit their respective colors. It’s also possible to build a direct-illumination display out of quantum dots that would rival OLED TVs.

How about 4K display interfaces? By now, you’ve probably heard that HDMI has “upgraded” to version 2.0 and can support a maximum data rate of 18 gigabits per second (GB/s).  Practically speaking; because of the way display data is transmitted, only 16 Gb/s of that is really available for a display connection. Still, that’s fast enough to show 4K content (3840×2160, or Quad HD) with a 60 Hz frame rate, using 8-bit color.

DisplayPort can now carry USB 3.0 on its physical layer. Here's an Accell DockPort breakout box with Mini DisplayPort and USB connections.

DisplayPort can now carry USB 3.0 on its physical layer. Here’s an Accell DockPort breakout box with Mini DisplayPort and USB connections.

Epson's Moverio glasses aren't as sexy as Google Glass - but then, they can do more things.

Epson’s Moverio glasses aren’t as sexy as Google Glass – but then, they can do more things.

Over at the DisplayPort booth, I heard stories of version 1.3 looming later this spring. DisplayPort 1.2, unlike HDMI, uses a packet structure to stream display, audio, and other data across four scalable lanes, and has a maximum rate of 21.6 Gb/s – much faster than HDMI. Applying the “20 percent” rule, that leaves about 17.3 Gb/s to actually carry 4K signals. And the extra bits over HDMI means that DP can transport 3840×2160 video with a frame rate of 60 Hz, but with 10-bit color.

Don’t underestimate the value of higher data rates: 4K could turn out to be a revolutionary shift in the way we watch TV, adding much wide color gamuts, higher frame rates, and high dynamic range (HDR) to the equation. HDMI clearly isn’t fast enough to play on that field; DP barely is. Both interfaces still have a long way to go.

So – why not make a wireless 4K connection? There were plenty of demos of wireless connectivity at the show, and I’m not just talking about Wi-Fi. Perhaps the most impressive was in the Silicon Image meeting room, all the way at the back of the lower South Hall, near the Arizona border.

SI, which bought out wireless manufacturer SiBEAM a few years ago, demonstrated super-compact 60 GHz wireless HDMI and MHL links using their UltraGig silicon. A variety of prototype cradles for phones and tablets were available for the demo: Simply plug in your handheld device and start streaming 1080p/60 video to a nearby 55-inch LCD TV screen.

Granted, the 60 GHz tech is a bit exotic. But it works quite well in small rooms and can take advantage of signal multipath “bounces” by using multiple, steerable antenna arrays built-in to each chip. And it can handle 4K, too – as long as the bit rate doesn’t exceed the HDMI 2.0 specification, the resolution, color bit depth, and frame rate are irrelevant.

This sort of product is a “holy grail” item for meeting rooms and education. Indeed; I field numerous questions every year during my InfoComm wireless AV classes along these lines: “Where can I buy a wireless tablet dongle?” Patience, my friends. Patience…

LG was one of many companies showing

LG was one of many companies showing “digital health” products, like these LifeBand monitors.

You can now buy the concave-surface LG G-Flex smartphone. But I don't think you'll see any of these in the near future...

You can now buy the concave-surface LG G-Flex smartphone. But you won’t see any of these in the near future…

The decline in TV shipments and sales seems to be offset by a boom in connected personal lifestyle and health gadgets, most notably wristbands that monitor your pulse and workouts. There were plenty of these trinkets at the show and an entire booth in the lower South Hall devoted to “digital health.”

Of course, the big name brands had these products – LG’s LifeBand was a good example. But so did the Chinese and Taiwanese manufacturers. “Digital health” was like tablets a few years back – so many products were introduced at the show that they went from “wow!” to “ho-hum” in one day.

This boom in personal connectivity extends to appliances, beds (Sleep Number had a model that can elevate the head of the bed automatically with a voice command), cars (BMW’s i3 connected electric car was ubiquitous), and even your home. Combine it with short-range Bluetooth or ZigBee wireless connectivity and you can control and monitor just about anything on your smartphone and tablet.

Granted; there isn’t the money in these small products like there used to be in televisions. But consumers do want to connect, monitor, and control everything in their lives, and their refrigerators, cars, beds, televisions, percolators, and toasters will be able to comply. (And in 4K resolution, too!)

PointGrab can mute a TV simply by raising a finger to your lips!

PointGrab lets you mute a TV simply by raising a finger to your lips!

Panasonic downplayed TVs at CES, but had a functioning beauty salon in their booth (by appointment only..)

Panasonic downplayed TVs at CES, but had a functioning beauty salon in their booth (by appointment only..)

Obviously, I didn’t visit the subjects of gesture and voice control. There were several good demos at the show of each, and two of the leading companies I showcased last year – Omek and Prime Sense – have been subsequently acquired by Intel and Apple. Hillcrest Labs, PointGrab, and other had compelling demos of gesture control in Las Vegas – a subject for a later time.

Summing up, let’s first revisit my mantra: Hardware is cheap, and anyone can make it. Televisions and optical disc media storage are clearly on the decline, while streaming, 4K, health monitoring, and wireless are hot. The television manufacturing business is slowly and inexorably moving to China as prices continue their free-fall.

The consumer is shifting his and her focus to all the devices in the home they use every days; not just television. Connectivity is everything, and the television is evolving from an entertainment device into a control center or “hub” of connectivity. The more those connections are made with wireless, the better – and that includes high-definition video from tablets and phones.

It’s going to be an interesting year…

 

 

 

 

 

 

 

 

 

 

HDMI 2.0 Is Here…And It’s Not Fast Enough?

This morning, the HDMI Forum announced the release of HDMI 2.0, which was almost two years in the making. The impetus for this new standard was and continues to be 4K, which requires such increases in data rates that the older 1.4 version can’t support it, except at slow frame rates.

Now, HDMI 2.0 has a maximum data rate of 18 gigabits per second (Gb/s), slightly faster than DisplayPort’s 17.2 Gb/s. If you do the math, this should be fast enough to transport 3840×2160 video with frame rates of 50 and 60 Hz, using 8-bit and 10-bit color (at 60 Hz, the clock rate for 8-bit 4K is about 14.9 Gb/s; with 10-bit color, about 17.9 Gb/s).

Here are the highlights from the official press release:

“HDMI 2.0, which is backwards compatible with earlier versions of the HDMI specifications, significantly increases bandwidth up to 18Gb/s and adds key enhancements to support continuing market requirements for enhancing the consumer video and audio experience. New functionality includes:

– Support for 4k@50/60, (2160p: 4 times the clarity of 1080p/60 video resolution)

– Up to 32 audio channels for a multi-dimensional immersive audio experience

– Up to 1536kHz audio sample frequency for the highest audio fidelity

– Simultaneous delivery of dual video streams to multiple users on the same screen

– Simultaneous delivery of multi-stream audio to multiple users (up to 4)

– Support for the wide-angle theatrical 21:9 video aspect ratio

– Dynamic synchronization of video and audio streams

– CEC extensions provides expanded command and control of consumer electronics devices through a single control point

HDMI 2.0 does not define new cables or new connectors. Current High Speed cables (Category 2 cables) are capable of carrying the increased bandwidth.”

After reviewing the specifications, it appears to me that the HDMI Forum was trying to squeeze every last drop of speed out of the existing connector/interface architecture without having to re-engineer the standard. There’s no mention of locking connectors (a bugaboo of the broadcast and AV industries). Nor is there any discussion of speeding up HDCP key exchanges beyond what’s already been accomplished with InstaPort. But an HDMI 2.0 standard should eliminate the need for two or even four separate HDMI ports to playback 4K content (several TV and projector manufacturers currently use this approach).

Adding multiple channels of audio and increasing the sampling frequency is relatively simple stuff, as the bit rates for audio are a small fraction of those needed for 2K and 4K video. And you can already deliver two separate video streams through one HDMI connector – it’s only a bandwidth issue; the new standard just establishes a protocol for doing so. Supporting 21:9 isn’t all that big a deal, either.

I’m not sure what “dynamic synchronization of video and audio streams” means yet and will have to talk to the folks at HDMI Licensing to get a better explanation. As for CEC, it appears that control functionality has been souped-up beyond the basic command sets used to operate AV receivers and Blu-ray players.

What’s clear now is that HDMI 2.0 is NOT going to be the big breakthrough many of us analysts and writers expected, and that it will NOT be able to transport 10-bit and 12-bit 4K video running at higher frame rates (>60 Hz). Both of these specifications are necessary to develop high dynamic range (HDR) video and movie content.

Nor is there any indication of supporting a high-speed data bus overlay like Thunderbolt, which is becoming more important with the growth in popularity of tablets and smart phones, not to mention ultrabooks. These devices are leading the industry changeover to single, dense, multifunction interfaces across all sorts of CE products.

In contrast; over at VESA, they’ve already commenced development of Display Stream, a new interface that will use “light” JPEG compression to push data rates up to 25 Gb/s and beyond over conventional DisplayPort connections. This is a more “future-proof” approach to display connectivity and reflects the current state of 4K and UHDTV product and content development, what with all of the 4K television announcements that have been made this year.

But the reality is that HDMI dominates the CE marketplace and is making major inroads to commercial AV and broadcast installations. The market has largely ignored DisplayPort, despite the facts that (a) there are currently no royalties associated with its use, (b) its connectors come in many different flavors, including support for mobile and fiber optic interfaces, and (c) it already supports a high-speed data bus overlay – the 20 Gb/s Thunderbolt layer.

Maybe they’ll get it right next time..

SMPTE Philadelphia Chapter: Dealing with Consumer Display Interfaces in a Professional World

SMPTE Philadelphia Chapter

September 2011 Meeting

WHYY Studios

Independence Mall (5th and Race Streets)

Philadelphia, PA

RSVP: swalker@whyy.org, 215-351-1270

SMPTE 2011 Technical Conference: Dealing with Consumer Display Interfaces in a Professional World

2011 SMPTE Technical Conference & Exhibition

3:00  PM, Tuesday, October 25, 2011

Renaissance Hollywood Hotel

1755 North Highland Avenue

Hollywood, CA 90028