“…So which was the best looking glasses-free large screen 3DTV? Who was the 3D-glasses-free queen of CES? Not Sony’s 56” 4K, or 46” 2K LCD panel prototypes shown with floor platforms that wisely limited the viewing area/angles. Not the 65” and 56” LCD models from Toshiba shown with fixed feet marks on the floor (so you better not move) in a tunnel-type booth that also precluded angled views other than straight to the set. Not even LG. The best looking large screen 3D image without using 3D glasses to my eyes was the one demoed by 3DFusion in a private viewing at the Stratosphere hotel in Vegas. I dedicated an unusual couple of hours viewing different 3D content and talking to the people responsible for this effort.
The majority of the 3DFusion technical 3D ASD team is based in Netherlands, Europe, and the company has a corporate office in NYC. When attending CES I generally avoid going to meetings in hotels outside the Las Vegas Convention Center because of the excessive time it takes to reach them (and return to the show), but I made an exception in this case because I knew that what I was about to witness was worth the effort. But I didn’t go alone. While attending a Consortium meeting of industry members at CES, I ran into Chris Chinnock
, Founder and President of Insight Media
and a key facilitator of the 3D@Home Consortium
, and extended a courtesy invitation to him to attend the demo with me.
In November, when I attended the 3D University
workshop in NYC, ... 3DFusion invited me to view their auto-stereoscopic (glasses free) 3DTVs (22”, 42", 55", and a 128" video wall of 9-LCD tiled panels) in their Wall Street corporate office but my return flight to Washington D.C. did not allow for sufficient time for the demo, so we arranged a private visit at CES, and I am very glad I did.
I will cover further this 3DFusion development and their technology in an follow up article but I just wanted to, once again, defuse the negative press claiming that the technology for auto-stereoscopic 3D will take 5 to 10 years to be available.
I consider the 3D technology to be at its beginning phase, and for it to be just a feature within a good quality HDTV for those that may want to occasionally watch a 3D movie, and hope that the 3D transmission and display technology will improve with time so the image quality of 3D could eventually be as good as, or better than, the quality reached by HD and no less than what the 3D cameras recorded at the source. However, I also consider that regular consumers are not as concerned about high image quality as they are about accessing appealing content with online convenience, lower price, and features like Smart TV connected to the Internet for browsing and Netflix without waiting for a disc, Skype, etc.
In other words, the setback that 3D entails to the reached plateau of quality HD image and adequate infrastructure may not be of concern to the average consumer that drives huge volume sales and seems to be content with an over-compressed, low-resolution YouTube video on a large 1080p quality panel if the content is of interest, unfortunately for those that strive for quality.
While it is true that glasses-free 3D demos over the past couple of years have shown viewing limitations in resolution, size, and viewing zones for a low number of viewers, the fact is that 3DFusion has done a considerable effort on their software engine to process in real time a 3D source to soften, and most of the time completely eliminate, the typical visual breaks viewers experience when moving between viewing zones to change their sitting position or when moving their heads, which is known to disturb the 3D effect.
In the case of the 42” 3D LCD shown by 3DFusion at CES 2011, the visual breaks between viewing zones were almost imperceptible and I was able to change positions freely in front of the 3DTV panel maintaining a uniform 3D viewing even at wide lateral angles, a typical weakness of LCD panels even with HD. Although CES did not show the variety of 3D without glasses TVs I was hoping to see, I was glad to see Sony’s and Toshiba’s demos, but they did not compare to the viewing-zones-change ability of the 3DFusion demo.
The 56” Sony 4K set (which was a demo of future technology, no specs, no timeline, no pricing) showed a crisp 3D trailer of racing cars but the viewing was visibly disturbed when changing the viewing position or moving the head (the 46” 2K LCD set degraded the experience even further). The Toshiba’s glasses-free pair of 3DTVs, announced to be available by year-end for an undisclosed price and specs, also offered a 3D viewing experience that could not compete with the quality of the 3DFusion demo.
Granted, these demos were prototypes that are expected to improve when their final products are out, but that was the case with 3DFusion as well and the difference was noticeable. How the Sony’s and Toshiba’s 3DTVs would have performed if using the 3DFusion proprietary software to soften the viewing zone breaks? I would assume much better but that is a conjecture, and I’d rather concentrate on facts.
The 3DFusion panel (based on off-the-shelf LCD), the lenticular screen, and the proprietary software were all designed to show 9 zone views of approximately 900x500 pixels of effective resolution per view zone (eye) using a sub-pixel sharing method to offer the best resolution while maximizing the use of the total 1920x1080 pixel resolution of the panel. These numbers will continue to improve according to 3DFusion management (a 47” panel with 1500+ lines (rows) of vertical of resolution is in the works, 1.5x 1080p HD resolution, with 27 views).
Regarding original resolution of the 3D source image, it must be highlighted that a passive polarized 3DTV with glasses shows 1920x540 per eye of the original resolution of 1920x1080 of Blu-ray 3D/3D camera recording, but only shows 960x540 per eye of that original resolution (one quarter of it) when displaying 3D content that was broadcasted side-by-side
, regardless of the magic interpolation of created pixels the TV can do to complete the displayed image.
Side-by-side is one common 3D format/structure used by DirecTV and Cable with some 3D content, and eventually most probably be used by over-the-air 3D broadcast to maximize the 6 MHz bandwidth limitation of the channel allocation.
In other words, the number of pixels of “original resolution” each eye receives on the 3DFusion demo without 3D glasses (900x500) is similar to what each eye receives of the same “original resolution of 1920x1080” from a side-by-side 3D broadcast when displayed on a passive glasses 3DTV (960x540). Would you prefer to view the same original pixels with or without glasses?
... the company is now making available a proprietary real-time processing software solution that manufacturers can license to facilitate their implementation of better quality glasses-free 3D. Such a processing feature can be incorporated into Blu-ray players, external boxes, or the display itself to reach the same goal. Although the technology can be applied to plasma panels, the company feels that the results will not be as good because of the lower fill rate of plasma displaying 3D images.
Although no price was officially established, informal discussions pointed to a starting $8,000 range until sufficient production volume can be leveraged. When judging an $8,000 price on a 2011 world of $2,000-$3,000 3D active/passive displays that require glasses, one may react negatively to the choice, but it is important to remember the high prices during the introduction of HDTV
in 1998, with first generation CRT RPTVs in the range of $5,000-$9,000 (56” Toshiba to 64” Pioneer Elite), over-the-air HDTV tuners as high as $3,000 (Pioneer external unit) just to tune ATSC, and 42” plasma panels around the $10,000 range (Fujitsu for example) that were not even in HD resolution.
I remember that in detail because I have been involved with HDTV since the 80s and purchased my early-adopter HDTV and tuners as soon as they became available, certainly at prohibitive prices but worth every penny when considering the importance of that first experience of a technology that took so much effort and time to develop by the US television industry.
This phase of glasses-free 3D should be evaluated under the same perspective until economies-of-scale kick-in for the glasses-free 3D business model, while the 3D auto-stereoscopic technology improves rapidly on a daily basis.
I close with a quote 3DFusion received from a renowned 3D industry leader at a November 12th 2010 demonstration of 3DFusion's 42" glasses-free Auto Stereoscopic Display at the 3ality Digital
Studio in LA, where 3ality Digital CEO’s Steve Schklair
offered the following thoughts on the 3DFusion 3DTV ASD platform: "…this is the best autostereo display I've seen to date"…"For certain commercial applications, the 3D Fusion ASD is ready now, and this technology for the home is a lot closer than I previously thought. Their live 3D camera capture / ASD display, complete with on-the –fly depth adjustments, clearly demonstrates proof of concept. It works.
Rodolfo La Maestra, HDTV Magazine