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Laser TV/projection technology


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It seems that new LED technologies will be past by laser technology in the display market.

They even claim the end of plasma TV's. (due to better quality with lower production cost)


news: http://www.theage.com.au/news/NATIONAL/Laser-TV-predicted-to-be-death-of-plasma/2006/10/10/1160246121576.html

lasers: http://www.novalux.com/


Making a big investment in a new plasma screen could be a bad idea now.

They claim to have a first commercial model end 2007.

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There are other things to consider though. Most notably is the absence of a source capable of taking advantage of the abilities of such technology.


Right now, we are limited by HD-DVD and Blu-Ray. The existing format war will make the adoption of either technology very slow. Also, consider who benefits the most from either HD-DVD or Blu-Ray: people with 50" TV's and above, and the ability to display a "true" 1080P signal. This represents an extremely small proportion of TV owners. Even as prices drop, there are people who simply have no interest in owning a TV screen that large.


Lastly, consider another major factor: resolution. An increased resolution is not even mentioned. Increasing "pitch" and color depth will only take you so far.


In sum, while the "tech specs" of these TV's would indicate they are superior, the reality is going to be "what you see is what you get". While completely anecdotal, I bet 95% of the "normal" consumer market will NOT be able to notice the claimed improvement offered by this technology.

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actually, laser projection will increase the amount of heat rediated which may decrease product life and then more heat sinks!!!


Uhm, you didn't read any of it didn't you?


Energy consumption will decrease and MTBF increases strongly.

20.000 hours (compared to 2000 lamp hours with current projectors TV's)

That is almost 7years for 8 hours every day, by then I will buy something else.


P.S. you don't need heat to make laser light.

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As a side project, I am working on some small things on a laser display for the US air force. Though I still haven't personally seen the laser display, theoretically, it can provide a wider spectrum of colours and contrasts and ofcourse higher brightness with respect to current technology. Heat is not an issue.


Interestingly, a laser's greatest advantage in other fields (its coherence properties) is its greatest disadvantage in displays. Laser displays are plagued with laser speckle issues (speckle is the random noise caused by interference effects from reflection off a rough surface such as a display screen). Speckle is known to hinder resolution and make it uncomfortable for the eyes to watch the screen.

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