Tetrapod quantum dot LEDs could lead to cheaper, better HDTVs soon - AVS Forum
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post #1 of 4 Old 09-15-2013, 09:06 AM - Thread Starter
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http://www.engadget.com/2013/09/13/tetrapod-quantum-dots-materials-led-lcd/


"Tetrapod Quantum Dots are an advanced nanoscale material that improves the performance and energy efficiency of very high-resolution computer, TV and smartphone displays. Quantum Materials' patent-pending continuous-flow technology produces uniform, narrow bandwidth tetrapod quantum dots with bright emission, less aggregation, purer colors (including high-luminous red) and precise color rendition.

Manufacturers are seeking to "print" tetrapod quantum dots onto backplane films in liquid crystal displays (LCD) for brighter images, larger screens and a wider gamut of colors to deliver a new visual experience in image technology. Thinner, lighter, brighter and less expensive QD-LED displays, including portable and flexible devices, will offer almost infinite contrast levels, deep black levels and high light output with no motion blur or field-of-view issues."
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post #2 of 4 Old 09-15-2013, 01:58 PM
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Manufacturers are seeking to "print" tetrapod quantum dots onto backplane films in liquid crystal displays (LCD) for brighter images, larger screens and a wider gamut of colors to deliver a new visual experience in image technology. Thinner, lighter, brighter and less expensive QD-LED displays, including portable and flexible devices, will offer almost infinite contrast levels, deep black levels and high light output with no motion blur or field-of-view issues.

These appear to be Quantum Dots on film for LCD displays rather than true Quantum Dot Light Emitting Diodes (QLEDs). Per the list of Quantum Dot Displays, only QD visions's dots are available commercially in Sony's displays so far. Hopefully more vendors will bring prices down and get them in more displays as the Quantum Dot Color Gamut is fairly large. While they fall short of Rec 2020, hopefully in the near future they will at least be able to hit 100% of Adobe RGB and DCI P3.


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post #3 of 4 Old 03-05-2014, 12:40 PM
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Quote:
Originally Posted by NLPsajeeth View Post

Quote:
Manufacturers are seeking to "print" tetrapod quantum dots onto backplane films in liquid crystal displays (LCD) for brighter images, larger screens and a wider gamut of colors to deliver a new visual experience in image technology. Thinner, lighter, brighter and less expensive QD-LED displays, including portable and flexible devices, will offer almost infinite contrast levels, deep black levels and high light output with no motion blur or field-of-view issues.

These appear to be Quantum Dots on film for LCD displays rather than true Quantum Dot Light Emitting Diodes (QLEDs). Per the list of Quantum Dot Displays, only QD visions's dots are available commercially in Sony's displays so far. Hopefully more vendors will bring prices down and get them in more displays as the Quantum Dot Color Gamut is fairly large. While they fall short of Rec 2020, hopefully in the near future they will at least be able to hit 100% of Adobe RGB and DCI P3.

There seem to be a range of new 'wide color gamut' LED/LCDs hitting the market this year. Beyond the Sony 950B, there is the Vizio Reference Series, the Toshiba Radiance L9400U, and probably others including the Panasonic AX800.

In addition, there have been announcements from panel manufacturers AUO and Innolux regarding the availability and supply of WCG LED/LCD panels in 2014:

AUO: http://www.auo.com/?sn=107&lang=en-US&c=9&n=1544

Innolux: http://www.digitimes.com/news/a20130820PD214.html

Is it known if QD Vision is the quantum dot supplier being used by AUO and Innolux or is it one of their competitors (assuming the WCG panels are being implemented through the use of quantum dots)?

It seems like the technology Sony pioneered in 2013 (at least in terms of the end result of WCG LED/LCD display) has gained major momentum in 2014 and I would appreciate any insight anyone has into the technologies and vendors behind this trend...

-fafrd

Is it known what technology these panel manufacturers are using for WCG LED/LCD panels? Is it quantum dots and if so embedded in film like the Sony 2013 'Triluminous' display technology or through another mechanism such as a coating directly on the LEDs?
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post #4 of 4 Old 03-05-2014, 01:07 PM
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Originally Posted by fafrd View Post

There seem to be a range of new 'wide color gamut' LED/LCDs hitting the market this year. Beyond the Sony 950B, there is the Vizio Reference Series, the Toshiba Radiance L9400U, and probably others including the Panasonic AX800.

In addition, there have been announcements from panel manufacturers AUO and Innolux regarding the availability and supply of WCG LED/LCD panels in 2014:

AUO: http://www.auo.com/?sn=107&lang=en-US&c=9&n=1544

Innolux: http://www.digitimes.com/news/a20130820PD214.html

Is it known if QD Vision is the quantum dot supplier being used by AUO and Innolux or is it one of their competitors (assuming the WCG panels are being implemented through the use of quantum dots)?

It seems like the technology Sony pioneered in 2013 (at least in terms of the end result of WCG LED/LCD display) has gained major momentum in 2014 and I would appreciate any insight anyone has into the technologies and vendors behind this trend...

-fafrd

Is it known what technology these panel manufacturers are using for WCG LED/LCD panels? Is it quantum dots and if so embedded in film like the Sony 2013 'Triluminous' display technology or through another mechanism such as a coating directly on the LEDs?

I think I might have just found the answer to my own question (red phosphor powder). I decided to post the information in a new thread on the subject here: http://www.avsforum.com/t/1521141/2014-ntsc-100-high-color-gamut-panels-using-red-phospher

-fafrd

p.s. here is the link to the article I found: http://global.ofweek.com/news/Red-phosphor-powder-used-in-making-high-color-gamut-TVs-8077

And the most relevant (and final) paragraph:

"As TV manufacturers use a new generation of red phosphor powder to reach high color gamut in 2014, the industry will be focusing its attention on whether the cost/performance (C/P) and pricing strategy is better than QD technology; and whether it will successfully bring new demands to the already saturated large-sized LED TV market."
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