http://www.engadget.com/2006/01/05/sonys-82-inch-lcd-hdtv-prototype-is-the-first-xvycc-compliant-d/ Engadget Comments for Sony's 82-inch LCD HDTV prototype is the first xvYCC compliant display http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2010 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2006/01/05/sonys-82-inch-lcd-hdtv-prototype-is-the-first-xvycc-compliant-d/http://www.engadget.com/2006/01/05/sonys-82-inch-lcd-hdtv-prototype-is-the-first-xvycc-compliant-d/


The extended YCC thing might forever be relegated to high-end sets (it's not really the kind of thing a lot of people would notice in a TV, unless they're major videophiles), but supposedly affordable LED-backlit panels are less than a year away and I predict this technology will be in mainstream sets starting in 2007 or 2008.

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This individual colour LEDs seems to take it even further - allowing a RED to be more RED by simply not having any blue or green in the backlight, but again, it can only do this over a small area instead of per pixel.]]>Jan 5th 2006 11:42AMhttp://www.engadget.com/2006/01/05/sonys-82-inch-lcd-hdtv-prototype-is-the-first-xvycc-compliant-d/http://www.engadget.com/2006/01/05/sonys-82-inch-lcd-hdtv-prototype-is-the-first-xvycc-compliant-d/Jan 5th 2006 11:45AMhttp://www.engadget.com/2006/01/05/sonys-82-inch-lcd-hdtv-prototype-is-the-first-xvycc-compliant-d/http://www.engadget.com/2006/01/05/sonys-82-inch-lcd-hdtv-prototype-is-the-first-xvycc-compliant-d/


The gain from the LEDs come from the much wider color gamut they allow. The gamut of regular backlights (basically fluorescent tubes) is really poor. It's a huge compromise -- an attempt to create a muddy white from a bunch of emissions that aren't really pure primary colors, but are instead the best that can be gotten from running a current through rare earth compounds within a single tube. On top of that there are big gaps in the spectrum as the gas doesn't fluoresce in a linear way (unlike much more linear incandescent light.) It's just not attractive and many colors are badly attenuated or shifted because of the gaps. It's why people look better under incandescent light than fluorescents.



LED backlighting is much better as it's not one source of pseudo-white light, but three discrete LEDs combining to generate white, so each LED can be engineered with a more linearity and a much closer match to a pure primary (making it possible to render more intense colors.) They're also intensely bright, which isn't as important on a computer monitor but would matter if you're watching TV in a bright room.



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Read "LED Backlights Boost LCD TV Color"

http://neasia.nikkeibp.com/neasiaarchivedetail/000503
If you want to read more about LED backlighting, Nikkei Electronics Asia ran a good technical article on the topic back in March, 2005.



Read "LED Backlights Boost LCD TV Color"

http://neasia.nikkeibp.com/neasiaarchivedetail/000503

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