What's Quantum Dot display technology?
Anyone looking into the various HDTV display technologies will no doubt come across Quantum Dot technology which is being used by some manufacturers in their flagship HDTVs. A major hot topic at this year's Consumer Elecrtronics Show (CES), Quantum Dot applications have actually been around for years and on various devices. What is quantum dot technology and why should you care?
First, the basics. LCD is a panel technology (just like Plasma) and LED is a backlighting technology (just like fluorescent tubes). Quantum Dots are lighting components of newer LED HDTVs and displays
Quantum Dot TV panels make colours look purer, more distinct and with a heightened sense of depth. It’s all down to intelligent backlight technology, a QD display reproduces more tones and textures than standard LED backlighting and the result is the rendering of colours previously never shown on a screen.
Quantum dots are made of incredibly tiny particles. They range between 2 to 10 nanometers in diameter, which is equivalent to 50 atoms. While small, these quantum dots can really heighten the level of colour and detail on various displays for HDTVs, tablets, notebooks and even smartphones.
Most original LCD TVs were backlit by fluorescent tubes; later on, manufacturers switched to more efficient LEDs for backlighting. This allowed manufacturers to make TVs thinner and more efficient, and allowed for slimmer and larger display sizes. Quantum Dot technology promises to be an even better backlight than LED.
The same pros and cons cited for LCD TVs also apply to those using QD namely black levels, contrast, motion, viewing angles and screen uniformity.
QD LEDs are 50-100 times brighter than CRT and LCD displays, they also have better saturated green colors, manageability on polymers which can contribute to thinner display and the use of the same material to generate different colors.
The end result is that Quantum Dots can eventually enable more affordable production of high-quality displays at a fraction of the cost of high-end OLED displays but with similar properties.
So, while quantum dots work in a similar way as competing LEDs, they can create even more distinct reds, greens, and blues than colored LED. This leads to improved colour fidelity, more accurate hues, and even more realistic images.
Quantum dots are usually arranged in a tube called a quantum rail—adjacent to the LEDs, or in a sheet of film atop the light-guide plate. When a quantum dot is struck by light, it glows with a very specific colour that can be finely tuned. This is where the colours can be made extremely accurate.
QD technology is called many things by various manufacturers. Sony, for example, calls their version Triluminos and they attribute this feature for colours that really pop and and extremely vibrant images. The end result is that we can now for the first time 'see' various colours that have not been rendered accurately before.
Expect to see and hear more about Quantum Dot technology this year as it becomes one of the key features in various HDTVs and displays.
http://community.futureshop.ca/t5/Tech-Blog/W...a-p/520506
Anyone looking into the various HDTV display technologies will no doubt come across Quantum Dot technology which is being used by some manufacturers in their flagship HDTVs. A major hot topic at this year's Consumer Elecrtronics Show (CES), Quantum Dot applications have actually been around for years and on various devices. What is quantum dot technology and why should you care?
First, the basics. LCD is a panel technology (just like Plasma) and LED is a backlighting technology (just like fluorescent tubes). Quantum Dots are lighting components of newer LED HDTVs and displays
Quantum Dot TV panels make colours look purer, more distinct and with a heightened sense of depth. It’s all down to intelligent backlight technology, a QD display reproduces more tones and textures than standard LED backlighting and the result is the rendering of colours previously never shown on a screen.
Quantum dots are made of incredibly tiny particles. They range between 2 to 10 nanometers in diameter, which is equivalent to 50 atoms. While small, these quantum dots can really heighten the level of colour and detail on various displays for HDTVs, tablets, notebooks and even smartphones.
Most original LCD TVs were backlit by fluorescent tubes; later on, manufacturers switched to more efficient LEDs for backlighting. This allowed manufacturers to make TVs thinner and more efficient, and allowed for slimmer and larger display sizes. Quantum Dot technology promises to be an even better backlight than LED.
The same pros and cons cited for LCD TVs also apply to those using QD namely black levels, contrast, motion, viewing angles and screen uniformity.
QD LEDs are 50-100 times brighter than CRT and LCD displays, they also have better saturated green colors, manageability on polymers which can contribute to thinner display and the use of the same material to generate different colors.
The end result is that Quantum Dots can eventually enable more affordable production of high-quality displays at a fraction of the cost of high-end OLED displays but with similar properties.
So, while quantum dots work in a similar way as competing LEDs, they can create even more distinct reds, greens, and blues than colored LED. This leads to improved colour fidelity, more accurate hues, and even more realistic images.
Quantum dots are usually arranged in a tube called a quantum rail—adjacent to the LEDs, or in a sheet of film atop the light-guide plate. When a quantum dot is struck by light, it glows with a very specific colour that can be finely tuned. This is where the colours can be made extremely accurate.
QD technology is called many things by various manufacturers. Sony, for example, calls their version Triluminos and they attribute this feature for colours that really pop and and extremely vibrant images. The end result is that we can now for the first time 'see' various colours that have not been rendered accurately before.
Expect to see and hear more about Quantum Dot technology this year as it becomes one of the key features in various HDTVs and displays.
http://community.futureshop.ca/t5/Tech-Blog/W...a-p/520506
