Posts Tagged ‘HDTV’

Samsung and Panasonic 3D TVs: Any better than Sony?

This past Sunday, I packed up my Sanyo Xacti pistol camera and headed over to a nearby Best Buy store. My goal was to re-run the same off-axis viewing tests that I conducted on a Sony Bravia 3D LCD TV at the CEA Line Shows. Except this time around, my guinea pigs would be Samsung and Panasonic products.

I picked a normal exposure for the correct (level) view and didn’t change it as I rotated the camera and glasses around. This was done so you could see any change in screen brightness.

First up was a Samsung 55-inch LED model. I settled in the comfy chair, pulled out the lone pair of active shutter glasses, and picked a few scenes from Monsters vs. Aliens.

Figure 1 shows a close-up view of the screen through the right eye lens, with the glasses positioned at the correct angle to the screen. No ghost images (crosstalk) were spotted and picture quality was high.

Figure 1

The next image shows the view with the glasses tilted about 30 degrees to the left. No objectionable ghosting here, either, although this particular scene is of a TV weatherman on a ‘flat’ picture tube – not much 3D going on here.

Figure 2

Figure 3 shows the view with the glasses tilted about 60 degrees to the left. The image is noticeably darker now, as the polarizers in the glasses are starting to cancel out the polarized light from the LCD TV screen.

Figure 3

Figure 4 shows – nothing! The glasses are tilted about 80 degrees to the left and the ‘twist’ of polarized light from the LCD screen is canceled out by the polarizing angle of the 3D glasses. Not surprising, considering that two polarizers are being used in the 3D glasses.

Figure 4

These tests don’t mean the Samsung glasses are completely free from ghost images when tilted. Figures 5a and 5b show two different views with the glasses tilted at about 45 degrees to either side, and you can see crosstalk in both images.

Figure 5a

Figure 5b

On to Panasonic! Figure 6 shows the 50-inch plasma screen head-on, as seen through the right lens.

Figure 6

The next figure shows the same screen with a tilt of about 45 degrees. Picture brightness has dropped a little, but there is no ghosting evident in the image.

Figure 7

Figure 8 shows the screen as seen at a nearly vertical angle, about 80 degrees. Image brightness is still good and there is only a hint of ghosting to be seen (look around St. Peter’s dome). Figure 9 shows the screen 90 degrees to horizontal and it’s still largely free of crosstalk.

Figure 8

Figure 9

From these tests. it should be pretty clear that plasma has a big advantage over LCD technology for viewing 3D, and that’s because plasma TVs don’t use polarizers as part of their imaging process. (Anti-glare glass is used, but doesn’t seem to have an adverse effect on 3D viewing angles.)

In contrast, it’s a tricky proposition to pair up polarized glasses with a polarized TV screen, as we’re just seen with Samsung and Sony LCD TVs. Your head really needs to be level to avoid seeing any ghost images.

It appears that the crosstalk problem is worse on Sony’s 3D LCD TVs because they’re only using one polarizer per glass lens (that’s the consensus educated guess). That decision results in images that are brighter, but are ridden with crosstalk – even when the glasses are positioned level to the screen. So there’s no allowance for head tilt  – even slight amounts – with Sony’s approach.

By using two polarizers per lens, Samsung cuts down crosstalk more thoroughly, just at the cost of screen brightness. But you can tilt your head at a greater angle and not be distracted by crosstalk through the glasses.

Panasonic is also using dual polarizers and their images were about as bright as Samsung’s, but nearly free of ghost images when viewed at any angle. If and when OLED-based 3D TVs make it to market, you can expect to see that same level of performance.

So…now you know!

3D TVs: Not Selling like Hotcakes?

Thinking about buying a 3D TV? You might be wise to sit on your hands for a while longer, because you’ll save a few hundred dollars and get more equipment at the checkout line to show for your patience.

Sunday’s Best Buy insert showed a Panasonic 3D TV package that includes the TC-P50VT20 3D plasma TV (comes with one pair of glasses, PLUS an extra two pairs of active shutter glasses, PLUS Geek Squad delivery and setup, all for $2249.96. That supposedly reflects a $700 savings over full list price. (The extra two pairs of glasses are valued at $300).

A few months ago, Panasonic announced a 3D bundle of the TC-P50VT20, one pair of glasses, and their BDT-300 3D Blu-ray player ($399.00) for $2,899, exclusively at Best Buy. That package likely ran out of gas quickly because there are only a handful of 3D Blu-ray discs available to watch right now.

So Best Buy’s new deal shifts focus to ESPN’s 3D coverage of the World Cup soccer matches, which started on June 11. All fine and dandy, but the ‘catch’ is that some cable TV customers will have to upgrade to newer Samsung, Pace, Motorola, and Cisco set-top boxes to receive the ESPN 3D channel – it can’t be done on older set-tops. (And good luck finding out exactly where and if ESPN 3D pops up in your service area!) UPDATE: Comcast is carrying the ESPN 3D signal in the 1080i side-by-side format, encoded as MPEG2 @ 18 Mb/s.

Samsung and Best Buy may have put together an even better deal. For $2769, you can get a UN55C7000 55-inch 240Hz LCD TV (LED backlit, of course) PLUS a BD-C6900 Blu-ray player, PLUS a 3D starter kit (two pairs of AS glasses and a copy of Monsters vs. Aliens in 3D), PLUS the Geek Squad delivery and setup as before. Don’t need a 55-inch screen? Substitute a UN40C7000 40-inch LCD 3D TV, and the price drops to $1799.

The 3D ‘kit’ is all yours for about $2800 bucks.

‘New kid on the block’ HH Gregg (at least, new in eastern Pennsylvania) has the same deal on the 55-inch set, or you can go with a 46-inch model for $2139. (They don’t mention anything about installation and setup, though.) Sixth Avenue Electronics also has the 55-inch and 46-inch packages, and will do free delivery and installation on both.

The Sears Sunday flier states that you can get the BD-C6900 BD player and the 3D starter kit free with the purchase of any Samsung 3D TV, which might be the best deal of all. They’ve priced the 46-inch LN46C750 3D TV (CCFL backlight) at $1529, while Samsung’s PN-50C7000 3D plasma TV is tagged at $1799.

Imagine that. We’re barely three months from all those big 3D product launches in New York, and prices have already started dropping like a stone. To make matters even more interesting, XpanD announced a few months ago at the NAB show that they plan to introduce universal ‘learning’ active shutter glasses to the marketplace later this year, which will directly impact the sales of proprietary AS glasses.

These bundled prices make you wonder about the real value of the glasses and Blu-ray players. In a business where margins are very tight, accessories such as glasses, cables, and even installation services are very important to the bottom line. Both the Panasonic and Samsung BD players list for $400, but my guess is that neither is selling very well right now: Hence, Panasonic’s decision to de-emphasize the player and Samsung’s ploy to throw theirs in as an extra to drive TV sales.

What will be telling is how much this year’s World Cup 3D coverage drives TV sales. You may recall that the World Cup did little or nothing to stimulate sales of HDTVs four years ago because Asian TV manufacturers overlooked an obvious fact: World Cup fanatics in Europe prefer to watch matches in pubs and taverns with their pals – not at home.

While ESPN is to be commended for making a substantial effort and investment to produce 3D coverage, it’s unfortunate that one of the least-appealing sports to Americans (historically speaking) is the focus of this coverage and not something like baseball, or basketball (NBA Finals), or even tennis.

What happens after July 11, when the Cup tournament concludes? How much 3D coverage will be available to drive TV sales throughout the summer?

Apparently not very much, based on the announcements made to date. And that means we’re likely to see even bigger discounts on 3D TV packages by September.

(By the way, none of the package deals I mentioned includes an HDMI cable. Hey, retailers have to make a buck someplace!)

?

The DTV Transition: One Year Later

Many HDTVexpert.com readers know I started this Web site back in 2004 as a way to provide useful information on HDTV – how to receive it, how to watch it, and how to get the most out of it.

As it turned out, the most popular articles were (and continue to be) “how to receive digital TV” tutorials. More specifically; how to select and use antennas for over-the-air DTV reception.

Over this past Memorial Day weekend, I had a chance to visit the site of one of my more interesting DTV reception challenges. The house, located high in a steep valley in southern Vermont, is completely blocked-in by a ring of hills and sits 50+ miles from the Albany, NY TV transmitters atop Helderberg Mountain. (Well, most of ‘em are up there.)

The occasion was to install a new flat screen TV and tap my ground-level UHF/VHF antenna system one more time to provide free HDTV to that screen. (The other two taps drive Zenith converter boxes.)

Sure enough, after a few hours of stringing cable and drilling holes, my brother and his wife were able to watch the French Open in HD via NBC affiliate WNYT and the Indianapolis 500 in HD from ABC affiliate WTEN. I also tossed in an upscaling DVD player so that they could enjoy their sizable collection of DVDs in widescreen ‘near’ 1080p quality.

That RF system is done – there’s nothing I can do to improve it, other than periodic maintenance and repairs. And other DTV antenna systems I’ve installed in upstate New York, on a Canadian island, in Maine, at the Jersey shore, and on the roofs of a few locals are perking along happily, with their owners enjoying one of the few great deals left in this world…free television, and in high-definition, too.

It’s a work of art, and a thing of beauty.

My own system is doing a bang-up job hauling in DTV signals from New York City (65 miles), Scranton (70 miles), Philadelphia (22 miles) and Allentown (25 miles). If I get tired of all the ‘hometown cheering’ for the Phillies and Flyers on local DTV stations, I can always switch back to New York DTVs WCBS, WNBC, WABC, and WWOR and get the scoop on the Yankees, Giants, and Knicks. (And if WMCN-DT wasn’t spewing out their inane infomercials on channel 44, I could watch WTXF as well!)

The future of over-the-air DTV isn’t very clear at the moment. FCC Chairman Julius Genachowski has called for re-allocating much of the UHF TV spectrum, to be used instead for wireless broadband to solve an Internet ‘connectivity crisis.’ (Verizon chairman Ivan Seidenberg has gone on record as saying that this ‘crisis’ is largely non-existent, and that Verizon isn’t even using all of the recycled TV spectrum it bought for such an application.)

Even so, we might as well enjoy OTA DTV while it lasts, which I hope will be a long time. So that brings me to the point of this essay, which is to ask readers this: How is the DTV transition working out for you? Are you connected? Everything running hunky-dory?

Or, are you still having problems with antennas, or older set-top boxes? Still trying to pull in DTV signals in a tough location? Got noise or co-channel interference issues?

Tell me about them. I’d like to hear your stories, and will publish as many as I can.Maybe I can even solve a reception problem for you, if I get lucky.

Drop me an email at pete@hdtvexpert.com with particulars (and photos as well, if you have them). I’d like to get a sense of how many readers are still watching free over-the-air DTV. And how many have opted to drop cable, or cut back on it in favor of broadband video services like Netflix or Hulu.

It’s a very different world we’re living in than ten years ago. Back then, we got excited when a temporary antenna, braced out on our decks or stuck in a low-hanging tree, intermittently pulled in HD broadcasts of Monday Night Football. Remember how revved up you felt back then when the signal finally locked up?

Somehow, Peter Griffin and Saturday Night Live streaming to my laptop doesn’t hold quite the same thrill…

3D: All revved up, but nowhere to go!

How much fun would it be to buy a new sports car if there wasn’t any gas available to power it, or roads to drive it on?

That’s exactly the situation that today’s consumers are facing with 3D TVs: There just isn’t enough content to watch on them. And it’s even more of a problem with 3D movies, as manufacturers have inked several deals giving them exclusive rights to bundle specific 3D movie releases with their 3D TVs and Blu-ray players.

Remember when HDTV first got off the ground, back in 1998? There wasn’t a whole lot of HD content to watch, aside from a few prime time shows on CBS and the occasional movie on ABC.

Consequently, retail demand for HDTVs didn’t really take off until HD programming picked up with movies on HBO, an expanded slate of shows and sports on major TV networks, and the introduction of HD program services by Dish Network. The 2000 Super Bowl, the first to be broadcast in HD, helped generate more interest in HDTV sets.

Even so, it took a few more years before the ball really got rolling and events such as the 2004 Olympics, the Stanley Cup, NBA Playoffs, and World Series were all broadcast in HD formats.

While it’s true that 3D programming choices will expand considerably this month as ESPN launches its World Cup 3D coverage and DirecTV begins 24/7 3D broadcasts, the pickings are slim when it comes to 3D movies.

Those exclusive ‘bundling’ deals are part of the reason. Samsung has locked up 3D Blu-ray distribution of the Shrek franchise (four movies in all) for the rest of 2010, and had a recent exclusive deal for 3D BD copies of Monsters vs. Aliens.

Panasonic has a similar deal to ship 3D BD copies of Coraline and Ice Age: Dawn of the Dinosaurs in 3D with their 3D TVs, and apparently will have first dibs on Avatar when it’s released in 3D this fall, according to the Web site www.hollywoodinhighdef.com.

What’s more, Sony is apparently negotiating a deal with Disney to have exclusive rights to the 3D BD release of Alice in Wonderland this fall, bundling it with Sony 3D Bravia TVs and BD players. Cloudy with a Chance of Meatballs is supposed to be the first ‘open’ 3D BD release later this month, but even it will be part of a Sony 3D TV bundle (no surprise there, Cloudy was released by Sony Pictures!).

They jury’s still out on whether 3D in the home will be a success. But limiting the pipeline of 3D movies to a trickle at this critical juncture simply isn’t good business. If TV manufacturers really wanted to drive sales, they should pick up the costs of 3D BD mastering for popular movies and let distributors flood the market with these movies.

Frankly, I’m surprised the Blu-ray Marketing Association and Digital Entertainment Group aren’t lobbying more vigorously for this approach. The Blu-ray format hasn’t exactly been an overwhelming success, and 3D is a way for it to ‘niche’ its way forward as the replacement for red laser DVDs. (Incorporating DVRs and BD-R capacity into BD players is another, equally important way to drive adoption of the BD format.)

The DVD format wasn’t hamstrung like this, when it launched in 1997. Players were expensive at the time, but within months, consumers had plenty of DVD movies to choose from at retail, and it didn’t take long for rental stores to start offering them, either.

Reverting back to my analogy: For now, consumers can enjoy their shiny new sports car while it sits in the garage, or zips around the neighborhood. But until those fast roads get built and there is an ample supply of fuel, consumers will continue to drive around in their older sedans and SUVs.

Supply drives demand these days in the HDTV business. Come on, Hollywood – when will the floodgates open on 3D Blu-ray movies?

Aside to Netflix: What’s YOUR timetable for 3D movie streaming? Hmmm?

NAB 2010: A Show in Transition

Some of the big questions facing attendees as their flights landed in Las Vegas were these: Can NAB survive? Will it evolve into something different? Is it even that important to attend NAB anymore?

The answer to all three questions is “yes.” Even though attendance was still down from 2008 (NAB claimed 83,000 ‘officially;’ my guesstimate was more like 55,000 to 60,000), there were plenty of companies in attendance with lots of cool products to check out.

That said, the show is undergoing a rapid transformation away from a traditional ‘broadcasting’ show to a mix of InfoComm and CES – hot new products for professionals. Of course, 3D was all over the place. But so was networked video, which dominated the upper and lower South Hall exhibit areas.

Booths were smaller this year, and that’s not going to change any time soon…not when the typical booth is showing products that have price tags in the hundreds and low thousands. Contrast that with NAB shows 15 years ago, when most of the price tags had three and four zeros in them!

You know attendance was off when this was one of the largest booths in the Central Hall!

On the other hand, the alternative wasn’t too attractive…

The smaller booths and lower number of exhibitors resulted in wider aisles and less traffic – a plus. But it also resulted in NAB placing the main registration area smack in the middle of the Central Hall, something I’ve never seen before.  And there was plenty of wide-open space at the end of that hall, as well in the North and South Halls.

Can NAB be staged in three halls? Absolutely! And can you see everything you need to see in three days? Try two days. (Thursday has become ‘exhibitor bonding day,’ to quote a fellow editor.) I could have covered my beat in two days if necessary.

THE TRENDS

Not surprisingly, 3D was a big topic this year, although not to the same extent as it was at CES. The SMPTE/ETC/EBU Digital Cinema Summit focused entirely on 3D for both days, and I was fortunate enough to deliver one of the papers to a jammed room of 500+ attendees.

Sony, Panasonic, JVC, Canon, Grass Valley, AVID, Doremi, Harris, Evertz, and Ross Video were just some of the companies showing 3D products in Vegas. Those products ranged from 3D monitors and cameras to 3D workflow (acquisition, editing, post, effects, and playout) software and hardware.

Sony’s LM4251TD 42-inch LCD monitor uses micropolarizers for passive 3D viewing.

Other specialized 3D brands were in attendance, too. TD Vision, Miracube, Mistika, and HDlogix had nice exhibits in the South Hall, down the street from Grass Valley. Smaller companies like Cine-tal occupied the 3D Pavilion nearby, while Motorola and Ericsson showcased 3D transport and format recognition products upstairs.

Although the consumer TV market is seeing a big push towards active-shutter 3D TVs and monitors, the emphasis at NAB was on passive 3D viewing (cheaper glasses, more expensive displays). JVC, Hyundai, and LG all manufacture them, and there were plenty of folks standing around with RealD X-pol eyewear watching the demos.

The projector guys were on top of things, too. projectiondesign showed a stacked pair of 3-chip 1080p lightboxes in the Mistika booth, using linear polarized glasses. HDI showed a 100-inch, 1080p LCoS rear-projection TV in the HDlogix booth, also using X-pol glasses. Christie also had suitable 3D projection systems out for inspection.

There were also some demos that left me scratching my head, such as Canon’s dual-projection X-pol 3D demo, using a pair of REALiS WUXGA (1920×1200) LCoS projectors. While it worked well, it requires two separate projectors and outboard 3D filter holders – too klunky! (A Canon rep told me that was because of the 60 Hz frame rate limitation on the internal video processor.)

Well, it IS 3D, but I doubt Canon will sell very many of these rigs…

Broadband video and IPTV were also big this year. This market for MPEG-4 AVC over Ethernet, fiber, or private data networks is exploding, and encoder companies such as Adtec, Vbrick, Harmonic, Ericsson, Harris, Motorola, and Digital Rapids were showing a full range of compatible products.

Sezmi also occupied a booth at the show. This company has a unique selling proposition – a set-top box that receives both terrestrial (read: free) digital TV and selected cable channels carried on secondary terrestrial channels. It also accesses a video-on-demand server through broadband connections (SDTV only) and has a customizable program guide for each user.

While not technically broadband, the nascent MH broadcast format was in abundance at NAB. MH uses MPEG-4 AVC coding in multiple streams with IP headers to send low-resolution video to handheld receivers, such as mobile phones and combo PDA/receiver products. MH is catching on in popularity with broadcasters, who see it as a more sensible alternative to simple multicasting of secondary channels that very few people may be watching.

ATSC MH on an iPhone? Brilliant! (There’s an app for everything!)

MY PICKS

After three days of walking around, I came up with a list of “finds” that I’ll share here. These are all products that represented clever thinking, breakthrough technology, and/or new price points. Some were easy to spot; others required quite a bit of digging. But they all made the trip to Lost Wages worth it (and that’s saying a lot, considering how airlines jam you in like sardines these days!).

TV Logic: This manufacturer of LCD broadcast monitor showed the world’s first active-matrix OLED broadcast monitor (unless you think Sony’s press announcement hit first, which it didn’t.) The LM-150 ($6,200) uses a LG Display 15-inch OLED panel with 1366×768 pixel resolution and come equipped with all the expected niceties including markers, crop marks, caption displays, over/underscan, and HD/SDI, HDMI, and analog video jacks. There’s also a 3D version in the works (TDM-150) that will sell for about $7,700.

This was the coolest product at the show. But will it REALLY last 30,000 hours?

Ericsson: In addition to a host of MPEG-4 and IPTV encoders, the ‘big E’ also showcased an innovative, iPad-like LCD touchscreen remote control/video viewer. Dubbed the IPTV remote, this product can dial up video from broadband, cable, satellite, and even your home network. Not only that, it can monitor weather sensors and your home security system. (Sound much like a Crestron product?) The IPTV remote will not be offered for sale at retail. Rather, it’s intended to be a content provider offering.

Christie: Have you seen their MicroTiles yet on the Colbert Report? These innovative ‘mini’ DLP projection cubes use LED light engines to power 800×600 DMDs (the actual working resolution is 720×540) and measure about 12” x 16.” They can be configured in just about any format you wish, including floor and ceiling projection, and up to 1024 can be driven at one time. The LED light source is specified to last over 60,000 hours. Think of LED-powered LEGOÔ blocks, and you’ve got the concept.

And YOU thought iPads were all the rage…

SmallHD: It wasn’t easy finding these guys behind the Sony booth, but they’d come up with a focus assist monitor for video and still cameras that they claim is the world’s smallest HD video monitor. The actual size is about 5.6 inches and the glass is WXGA (1280×800) LCD. It comes in two flavors – one for digital SLRs ($899) and one with SDI input ($1199). The monitors are an inch thick, weigh 10 ounces, and mount to hot shoes.

Z3 Technology: I found this booth on my last pass through the South Hall, and it was worth the stop. They showed the Z3-MVE-01 MPEG encoder, a compact box that codes HD up to 1920×1080 resolution using H.64 High Profile (up to 30Hz), with Ethernet and ASI outputs. Input compatibility includes composite, component, HDMI, DVI, and HD-SDI video…all for $5,000.

JVC’s 46-inch X-pol monitor always drew a crowd.

Adtec: I didn’t expect to see an HDMI-to-QAM modulator at the show, but that’s exactly what Adtec pulled out for me. The HDMI2QAM is a dual-channel design that encodes anything from the HDMI inputs (yes, they are HDCP-compliant) to a pair of quadrature amplitude modulation (QAM) channels, using MPEG-2 encoding. The modulation format is selectable between 64-QAM (SD), 128-QAM (not widely use), and 256-QAM (HD). Bit rates are constant and optimized for each mode (i.e. 38.8 Mb/s for each HD channel).

 

Cydle: This new start-up demonstrated an app for iPods and iPhones that allows viewing of ATSC MH (A/153) video. Along with it comes the i30,  a battery-powered docking station with built-in antenna (UHF). This means that your ‘i-whatever’ has two batteries to draw from, so if you run low on talk power, simply switch to the i30 battery. Both can charge simultaneously. Cool!

Sezmi’s personal program guide rivals TiVo for user-friendliness.

Panasonic: I’ve seen it before at CES, but it now has a model number. The company’s first production camcorder now goes by the moniker AG-3DA1 and is yours for the low, low price of just $21,000. (Well, all things are relative, I guess.) The camera weighs about 6 and a half pounds and uses a pair of 2.l07 MP sensors (full 1920×1080) to record 1080i and 720p HD content to SD memory cards. Convergence and horizontal and vertical displacement are fully adjustable.

Panasonic gets another mention for the AG-AF100, which they claim is the world’s first Micro 4/3-inch (1.33:1) HD camcorder. That’s a big deal because the 4/3” format matches the coverage area of 35mm film frames…which means you can use standard 35mm film camera lenses to get effects like shallow focus, soft focus, and vignettes. The camera records to SD/SDHC/SDXC memory cards using the AVCHD format and supports 1080i/p and 720p formats, including 23.98/24/25 Hz.

Sony gets extra credit for announcing the world’s second (or first) AM-OLED professional video monitor. The PVM-750 ($3,850) is a bit smaller than TV Logic’s offering at 7.4 inches (16:9), and is not quite full HD resolution at 960×540 pixels. (Not that you’d notice on such  small screen!)  The PVM-750 has 3G HD-SDI, HDMI, and composite video inputs, the full range of adjustments from tally and markers to blue screen mode and AC/battery power operation. No word on lifespan of the display, but Sony uses small molecule (SM) OLED technology, as does LG Display.

LP Technologies rounds out my list with one of those ‘too good to be true’ products: An LCD-based 9 kHz to 3 GHz spectrum analyzer with USB 2.0 interface, built-in preamp, and Ethernet connectivity for remote monitoring. Sorry, no internal battery pack!) The USB hook-up can be used to save data in the Excel format, while the internal memory can tore 900 different waveforms. The display is a 6.4” 640×480 (VGA) LCD type. And the cost? Just $4,500…

Stick one of these on a Canon 5D MK II, and you can shoot an entire episode of ‘House!’ (No kidding!)