QuantumDots-Info: the QD experts

Quantum Dots developer Nanosys, in collaboration with Nangtong Changed New Material (CYD) announced that it has developed air-stable quantum dot materials for the display industry, using diffuser plate technology.

Nanosys already launched a product, called xQDEF Diffuser Plate - and in fact Nanosys says that it has already received orders from multiple tier one consumer electronics brands such as TCL and Hisense for the xQDEF Diffuser Plate, which is now in mass production and products based on this material will be shipping within this quarter.

Researchers at Los Alamos National Laboratory (LANL) have assessed the status of research into colloidal quantum dot lasers with a focus on prospective electrically pumped devices, or laser diodes.

Their review analyzes the challenges for developing lasing with electrical excitation, and presents approaches to overcome them.

The Coretec Group announced that it has developed an efficient and highly scalable way to produce Silicon Quantum Dots (SiQDs).

The company says that its unique chemistry and processes enable the production of SiQDs that will be suitable for LED applications. Coretec says that SiQDs are metal-free QDs that possess all the favorable properties of their toxic metal-containing counterparts with the added benefits of elemental abundance, biological compatibility, and optical properties.

Last year, Poland-based Ergis Group launched an OLED encapsulation film platform called Ergis noDiffusion®. The company is currently testing its film solutions at customer sites in Asia, the EU and the US, and it is now starting to offer the same platform for the protection of quantum dot films (QD films) used in display and lighting applications.

These new films can be tuned to fit specific needs. Ergis can deploy its films on several substrate types, with varying film thickness, and the barrier properties can be tuned to be between 10-6 to 10-3. This means that custom films can be created to suit the specific sensitivity of the QDs for water vapor and to achieve specific product lifetime or other required properties.

Quantum Dots developer Nanosys is reportedly in talks to go public via a merger with a SPAC company called GigInternational1. If the deal goes through, Nanosys will gain a valuation of around $1 billion USD.

Nanosys has several lines of QD products, including one that is heavy metal free. The company says it has the world's largest quantum dots production capacity, it lists major display makers as customers and it has shipped materials to over 35 million devices to date.

A new report from Korea says that Samsung Electronics aims to ship its first QD-OLED TV in the first half of 2022. The first TVs will be 55" and 65" in size, and these will be demonstrated in CES 2022 (in January). Later in 2022 the company will also introduce 70-inch QD-OLED TVs.

Samsung Display has already started to produce panel prototypes, and is on track to start mass production in Q3 2021.

Market Analysts from UBI Research say that following an analysis of 160 patents filed by Samsung Display related to its quantum dot nanorod LED (QNED) technology, it has come to the conclusion that SDC has has completed the development of the QNED display structure.

UBI says that Samsung still needs to find a way to maintain the number of aligned nanorod LEDs within each pixels, though, so the development is not finished yet.

Researchers from Northwestern University developed a perovskite quantum-dots based emitter that features high stability, self-healing and very high brightness.

Perovskite QDs can realize single photon emission at room temperature and have excellent optical properties. The research team has developed a unique spray-synthesis method to create these pQDs which greatly increases the contact area of two different solutions, making it possible to grow a uniform protective organic layer on the surface of the quantum dots.

China-based BOE shows its latest emissive-QD display (AMQLED) at SID Displayweek 2021:

The 55-inch display offers a 3840x2160 (4K) resolution, a contrast ratio of 1,000,000 : 1 and a wide color gamut (90% BT2020). BOE says that all the functional layers of this display (HIL, HTL, QD and ETL) were ink-jet printed which enable BOE to achieve a material utilization rate of over 90%.

DSCC sees fast growth ahead for the use of inkjet printing technologies for the production of quantum dots color conversion layers in OLED displays.

As you can see in the chart, the gray area represents the capacity (in 1,000 sqm) at Samsung's QD-OLED Fabs.