Friday, October 22, 2010

HDMI 4.1 fills the bill even for 3-D devices coming this holiday season

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Until I read this article I thought HDMI was the only choice for new HD electronic components but I guess there is something called Display Port.  Since I retired I guess I'm getting a little slow on tracking electronic trends!


Image via Wikipedia

DisplayPort is another new video connector that’s being included on newer equipment, especially laptops.  It was designed as the successor to DVI and VGA on computers, but hasn’t seen as much adoption as either DVI or HDMI.  However, it is being included on all newer Macs and many Dell, HP, and Lenovo computers.  It is actually very similar to HDMI, so it streams both HD video and audio on the same cable, and can output up to 1920×1080 resolution and 8 channels of audio on a single cable.
 On the good side, DisplayPort does support HDCP, so you can use it to playback protected HD content from Blu-rays and more.  You can also connect it to an HDMI or DVI port with a  convertor, since the digital signal is compatible.  The problem is, few monitors and TVs include DisplayPort ports, so you’ll almost have to have a convertor if you want to connect your laptop to a larger screen. -What’s the Difference Between HDMI and DVI? Which is Better?

 I was relieved to see that "Geeks" agrees with my favorite bargain hunter, Stacy Johnson, who says a cheap $10 HDMI cable is all you need too.  Monster cables costing hundreds or even thousands of dollars are a ridiculous waste of money.  That company needs to reinvent itself now that digital video is becoming so widespread.  


The one question this article didn't answer for me, though, was whether the current crop of HDMI cables will handle true 3D that will be available on HD televisions this holiday season.  But, I found this statement about the new HDMI 4.1 standard.


The latest version of the HDMI standard establishes critical infrastructure for implementing 3D video in the home, defining input/output protocols that will allow 3D displays and source devices to communicate through an HDMI link. It’s a major milestone on the path to bringing true 3D gaming and 3D home theater to the mass market, supporting resolutions up to 1080p in 3D.
3D technology is evolving rapidly, with several competing approaches under development, so the HDMI 1.4 specification establishes protocols for a number of popular 3D display methods, including:
  • Frame, line, or field alternative methods
  • Side by side methods (full and half)
  • 2D plus depth methods

  - HDMI.org
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