The Custom Integrator Show Installment 01B is live.  This Podcast wraps up our initial look at 3-D.  This time we discuss some of the implications of 3-D when looking at the displays, projectors, and PC video cards.  We also through in a few topics at the end in preparation for CEDIA.


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One of the big areas of confusion lately is the concept the interaction between 120 Hz displays and 3-D content.  It is not good enough to just have a 120 (or 240) Hz display.  You also need to have the right type of display technology in addition to the proper electronics for decoding and rendering the 3-D material.

Considerations for 120 Hz Displays

  • For motion smearing

  • Does not solve the problems with time-sequential-based 3-D

  • Currently there are no 120Hz video signals with 120 distinct frames per second

  • Cannot be used for 120Hz 3-D unless it is labeled “3-D Ready” or “3-D capable”

Current Implementations for the Home

  • Anaglyph with red and cyan (green) glasses for stereoscopic 3-D (and “red-sharpened” differential diopter plastic glasses)

     – Poor quality

     – High ghosting

     – “Retinal Rivalry”

     – Inability to reproduce full color

     – Used for current 3-D DVDs

     – Used for stereoscopic 3-D games

  • Blu-ray 3-D standard in the works

Another area we discuss is in relation to HDMI 1.4.  The specification outlines support for a variety of 3-d delivery platforms, which just happen to coincide with the approaches we discussed in the previous Installment (01A).

  • Frame, line, or field alternative methods
  • Side by side methods (full and half)
  • 2D plus depth methods

I believe that 3-D will put a huge strain on the interconnecting cables for delivering 3-D from the source to the displays, particularly if HDMI extenders over CAT-6 are used.

Even more so is the impact of another very popular trend – 4K (or 4K x 2K).  Currently, 4K primarily is used in commercial cinemas, but it is starting to get some traction in the homes, too.  Think about a resolution that is about 4 times that of the current “Full HD” 1080p.  That is an awful lot of data to have to shovel down a piece of cable 60 or more times a second, especially if you are dealing with Deep Color at potentially 16 bits per pixel.

There really are two different “4K resolutions” in the field

  • 3840 pixels wide by 2160 pixels high
  • 4096 pixels wide by 2160 pixels high

However, 4K covers an even broader range once you start to get into the different aspect ratios (thanks to Wikipedia:

Digital film standards





Full Aperture 4K

4096 x 3112



Academy 4K

3656 × 2664



Digital cinema 4K

4096 × 1714



3996 × 2160



Full Aperture Native 2K

2048 × 1556



Academy 2K

1828 × 1332



Digital Cinema 2K

2048 × 858



1998 × 1080



It really makes one think about where we are going to be in the next couple of years and how we are going to deliver these experiences in the home.  I can’t wait to experience all of them.

A great resource I recommend: Today3D at



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