All I Ever WanteD To Know About DTV, But Was Afraid To Ask
March 16, 2010 |
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Or, how I learned to stop worrying and watch 3D.
One of the many benefits of working for CEA is that you get to attend the International CES each January and are among the first in the nation and often, the world, to see the latest technology has to offer. But how does the CEA staff stay current throughout the year. Well, like a lot of you, we read the trade and consumer news and visit electronics stores, blogs and websites, but sometimes you need someone who really understands the technology behind the glossy screens and casings to explain in simple terms how something works the way it does.
So when I got the Outlook invite to attend a brown bag product knowledge luncheon on DTV technology with a focus on 3DTV, I was in. Apparently I wasn’t the only one to jump at the chance because a large crowd of CEA staff gathered in our board room last week to learn about the technology from the Vice President of our Technology & Standards department, Brian Markwalter. Brian is an expert not only in consumer electronics and technology standards but also at converting engineer-speak into regular-person speak, as he so successfully does on many occasions for our CE Vision magazine.
Even though most (or more likely, all) of us in the room had seen 3DTV demonstrations at both the 2009 and 2010 CES, and maybe witnessed it at a movie theater in the last year, some of us (me) only had a hazy idea of how it actually works.
Brian began with an explanation of terms related to 3D including the different ways of creating 3D, namely Anaglyph, Polarized and Field Sequential and the history of 3D. Apparently 3D was first discovered in the 1800s and has fascinated mankind on and off ever since but apparently never got the traction to become mainstream until now. In simple terms the various methods of delivering 3D all amount to one thing – fooling the human brain by creating a disparity between the vergence and the focal distance or, having each eye see a different image. Apparently if you deploy too much disparity (either negative or positive) between the two images seen, it results in distortion and viewer fatigue.
The viewer fatigue issue segued off into a discussion among staff about who likes to watch 3D, who gets motion sickness when they watch, and who can’t see it at all. Brian mentioned that as part of CEA’s Technology & Standards 3D working group there would be a track tasked with looking at potential health issues related to 3D.
Next Brian talked about LCD and Plasma displays and how they differed, including nifty charts showing the magic behind the amazing images that appear at the front. I found out that LCD is a transmissive technology and Plasma is emissive. He also delved into OLED TV, a wonderful technology that is facing various challenges in scrolling up to bigger screen sizes that are cost-effective to produce. With the popularity of e-readers, this presentation wouldn’t have been complete without a look behind the screen to see how e-ink works. Who knew that e-ink is used for black and white eReaders and LCD for eReaders that offer color displays?
We rounded out this product knowledge luncheon with the opportunity to try out a Samsung PC fitted with Nvidia’s 3D vision kit of special glasses and IR synchronizer.
Thanks to Brian Markwalter for a fantastic presentation and to Cindy Arce for organizing this, and all, the product knowledge luncheons for the CEA staff and for securing various products and technologies for us to try out first-hand.
Does your organization do something similar? I’d love to hear how you learn about products, services and technologies in your given field.
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