Samsung's Full-Color Display with Quantum Dots

Connect the quantum dots for a full-colour image : Nature News

low-energy televisions.

Ink stamps have been used to print text and pictures for centuries. Now, engineers have adapted the technique to build pixels into the first full-colour 'quantum dot' display — a feat that could eventually lead to televisions that are more energy-efficient and have sharper screen images than anything available today.

Engineers have been hoping to make improved television displays with the help of quantum dots — semiconducting crystals billionths of a metre across — for more than a decade. The dots could produce much crisper images than those in liquid-crystal displays, because quantum dots emit light at an extremely narrow, and finely tunable, range of wavelengths.

Dots deliver full-colour display - physicsworld.com

Researchers in South Korea and the UK say that they have produced the first large-area, full-colour display based on red, green and blue quantum dots. The technology could spur the launch of colour TV screens combining a vast colour range with an incredibly small pixel size.

Both attributes stem from the intrinsic properties of the quantum dots, which despite being just a few nanometres in diameter comprise several thousand atoms that form tiny compound-semiconductor crystals. [...]

The First Full-Color Display with Quantum Dots - Technology Review

Samsung's four-inch diagonal display is controlled using an active matrix, which means each of its color quantum-dot pixels is turned on and off with a thin-film transistor. The researchers have made the prototype on glass as well as on flexible plastic, as reported in Nature Photonics this week. "We have converted a scientific challenge into a real technological achievement," says Jong Min Kim, a fellow at the Samsung Advanced Institute of Technology.
Quantum-dot displays would consume less than a fifth of the power of LCDs, says Samsung researcher Tae-Ho Kim. They promise to be brighter and longer-lasting than OLEDs. What's more, they could be manufactured for less than half of what it costs to make LCD or OLED screens.

This potential has caught the attention of big display manufacturers other than Samsung. LG Display is partnering with MIT spinoff QD Vision to develop quantum-dot displays.

QD Vision Inc. - Quantum Dot Technology for Lighting and Displays


QD Vision's Quantum Light™ products offer a unique solution for display systems, providing both superior light and color performance, while simultaneously reducing manufacturing and operating costs and significantly improving energy efficiency.  Quantum Light™ inks and optics are available for all types of displays, from mobile handsets to large, flat screen, high-definition televisions.  More »