Sony TVs show high-end color via quantum dot tech

Jan 15, 2013 by Nancy Owano weblog

(Phys.org)—Sony's Bravia LCD TVs, in selected models, have incorporated quantum dot technology to boost sales of these high-end televisions by featuring exceptionally high-end color. The technology is from the Massachusetts-based company, QD Vision, and that technology involves nanoscale particles known as quantum dots. They are to significantly improve color viewing for the new Sony TVs.

"By integrating QD Vision's "Color IQ" optical component with Sony's unique display technologies, our Bravia television sets achieve significantly wider , that provides a far more natural and vivid viewing experience," said Masashi Imamura, President, Home Entertainment and Sound Business Group, of Sony, in a press statement.

QD Vision's technology works with major LCD applications, including , LCD monitors and mobile displays. The technology harnesses the unique light-emitting properties of quantum dots, which is a class of nanomaterials. The approach used by QD Vision increases the range of colors that an LCD television can display by about 50 percent, allowing for purer colors. QD Vision describes itself as a nanomaterials product company delivering advanced display and lighting solutions, and it has been working to commercialize the technology advances it made at MIT some years ago.

Its edge is as, in its words, "the only quantum dot company solely focused on displays and lighting." The co-founders have worked on their technology along with scientific advisors, MIT professors Vladimir Bulovic and Moungi Bawendi, who the company said " is considered the father of quantum dot technology." Bawendi's work has been focused on uses for quantum dots as alternatives to fluorescent and proteins for labeling, imaging, and monitoring biological systems and for better understanding and battling cancer.

Technology Review, explaining how QD Vision technology translates into a Sony TV viewing experience, noted how in , each pixel is illuminated from behind by a white backlight, and different colors are created by changing the amount of light allowed to pass through three different filters. QD Vision's technology eliminates the white backlight and uses quantum dots to enhance the backlight. It starts with a conventional blue LED, which produces pure blue light. The blue light stimulates two kinds of that emit pure green and pure red.

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Color IQ promo


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User comments : 10

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that_guy
3.7 / 5 (3) Jan 15, 2013
I fail to understand the unending urge to create electronic media to advertize the amazing color or sound of a product for the express purpose of letting me see or hear it over the internet.

Assuming the camera used could even properly quantify the vibrancy of said device, I'm absolutely positive that I would not know any better, even if the TV had twice the color vibrancy of the monitor I'm using to watch the video of it on.

It's like trying to show how great a 4k tv is on a 720p video without zooming in on it.

You've got to be a little more creative when advertising something that that presumably has greater properties than the ability of media used to distribute the advertisements.
baudrunner
1 / 5 (3) Jan 15, 2013
People will be adjusting the color saturation in any case to suit their personal preferences. I fail to see how this makes for a better TV viewing experience.
that_guy
not rated yet Jan 15, 2013
I fail to see how this makes for a better TV viewing experience.


In essence, that's what I'm saying - Without actually factually seeing it in person, we cannot see if it actually provides a compelling benefit.
dan42day
1 / 5 (2) Jan 16, 2013
Yeah, but if it increases interest in the product and differentiates it from it's competitors, then it is successful advertisement.

I'll bet you are both still interested enough to check it out in person if the opportunity presents itself.

I can see where using pure red, blue, and green would reduce the contamination from the wider range of frequencies that would pass through each of the color filters. That would allow the LCD's to create a more exact match for the pixal value specified by the image sensor that recorded it. That should improve the pictures color quality.

Or not, would have to see it to be sure.
rah
1 / 5 (2) Jan 16, 2013
And the price is half as much as today's LCD TV's?!! All right!! It didn't actually say that in the article, but since price wasn't mentioned, it's safe to assume the prices will drop by 50%.
StarGazer2011
1 / 5 (2) Jan 16, 2013
the really dissapointing this about this "article" is the complete failure of the author to do anything but paraphrase the promo material. How about taking some readings of the color accuracy and posting those compared to a non-quantum-dot tv? too hard?
PS3
1 / 5 (1) Jan 16, 2013
Sounds great! I want to know how it compares with OLED.
antialias_physorg
not rated yet Jan 16, 2013
the really dissapointing this about this "article" is the complete failure of the author to do anything but paraphrase the promo material.

This is an aggregation site. Not a site where authored/original articles are posted.
ChuckG
1 / 5 (1) Jan 16, 2013
If we actually lived in an Ektachrome world, this would be great.

But we don't, at least not so I've noticed. No need to juice up the color on your TV screen to the point of unreality.
alfie_null
not rated yet Jan 16, 2013
Not that I'm against increasing gamut, but I wonder if this is a little like 4k - the capability is there, but no media to take advantage of it.
Cameras, recorded content (discs, older analog tapes, films, etc.), digital encoding techniques for transmission, are likely designed for smaller gamuts.

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