Originally Posted by Paul.R.S
I'll keep looking but thanks for the reply, Mr. Stewart. As opposed to scrolling through yet another thread or hearing from a resident expert, I'm really looking for a brief "white paper," perhaps from the BDA. There are too many discrepancies (like the little frame-packed/frame-sequential bauble in posts 16 and 17) over what is often minutiae and too much implementation variance from manuf to manuf on smaller details. I want to grasp the broad strokes on just the spec. I'd sure like to think that the BDA had to have released something more technical than a press release, like an executive summary.
The BDA does not publish specs/white papers for free. So a PR
is about all you are going to get.
If you have a question - ask it. Lots of knowledgeable people on this forum.
Meanwhile, if indeed my understanding is not correct on the 3D BD signal format standard, I stand corrected and have a related question more specific to the topic of this thread: If indeed frame packing is the standard, why is leading BDA member Panasonic making players that output checkerboard? Is there a setting in the player menu that allows one to switch that output to frame packing for use with a display that accepts that and not checkerboard?
Frame packing is the method that the HDMI TX chip uses to assemble the data which is then sent on to the 3D display where is does it's thing via the HDMI RX chip. Because AVC-MVC is used as the codec, there is approx. 150% - 50% more than a 2D BD. Not 200%. There is some interpolation going on due to redundant frames. That is how MVC works.
Panasonic decided to build the very best 3D BD player like they decided to build the very best 3DTV with their VT series. They recognized some issues that they addressed; That 1.4 3D will not go through a 1.3 AVR so they use dual HDMI outputs (selectable in a menu) that allows one output to be used for 1.3 HD audio (to AVR) and the other as a 1.4 HDMI out for 3D video (300 & 350). They also saw the opportunity to provide a 3D BD player for the millions of 3D ready RPTVs that Mits and Samsung sold/sell which require checkerboard to work. So they added that to their players. It is a menu selectable output. Samsung has totally ignored it's past customers.
Perhaps my understanding of checkerboard is skewed by reading largely info at the Mitsu site (since I have a Mitsu DLP). But I thought checkerboard was largely a format that comes in to play as something 'universal' that other formats can be converted from in case a display can't accept what a source natively outputs. From the Mitsu 3D FAQ
TI developed 3D for their DLP chips. Because the DLP chip in an RPTV is different than what is used in a projector, they invented a method to show 3D on a DLP RPTV. And that method requires checkerboard as the 3D format for a successful execution. DLP projectors don't use checkerboard to display 3D. And they invented a comm system for the glasses that works for both with no emitter required; DLP-LINK.
The Checkerboard format is really designed as method of displaying 3D on the TV and not expected to be used to send 3D signals to your home. The Mitsubishi 3D TVs display 3D using the checkerboard format so the Mitsubishi 3D Adapter is designed to convert the Frame packing, side-by-side and top-bottom signals mentioned above to the checkerboard format.
That is correct.
When the Vizio 65" 3DTV (LCD) arrives next year, it will use Xpol technology which means no active shutter glasses. It uses passive polarized glasses - the same kind they give out at a RealD 3D Cinema. But it only works using the Line-by-Line 3D format so it will convert all the other formats to L-b-L just like the 3DA-1 convets them to Checkerboard