Quantum Dots - Page 2

Samsung Display is showing several new displays and technologies at Displayweek 2025. First up we have Samsung's latest Sensor OLED display protype that allows for allows fingerprint recognition and cardiovascular health monitoring across the entire screen surface. 

To create this display, SDC integrated OPD directly during the OLED deposition process, embedding the sensors into the panel itself (what is sometimes referred to as a bi-directional OLED). Beyond fingerprints, it measures biometric data such as heart rate, blood pressure and stress levels. This technology is based on how OLED light reflects differently depending on the contraction and relaxation of blood vessels.

Samsung Display today announced a new, and somewhat curious brand identity for its QD-OLED technology, underscoring how QD-OLEDs provide a distinctive wide color gamut (which will 'vivify' your display), and also emphasizing the blue color that is the basis of the QD-OLED emission:

QD-OLED panels were first introduced by Samsung Display in 2021, and have been used in over 170 products, mostly TV and monitors, from brands that include Samsung Electronics, Sony, Dell, HP, and Asus.

Samsung Electronics has reportedly decided to accelerate the development of its QD-EL display technology. Working together with its affiliate companies, Samsung aims to commercialize QD-EL displays within the next few year. QD-EL displays are similar to OLEDs, but use quantum dots as the emitter itself. Samsung hopes that QD-EL displays will outperform its OLED displays, with a larger color gamut and higher efficiency.

Over the past years, we have seen many QD-EL prototypes, from Samsung Display. TCL CSoT, Sharp and  BOE.

We're happy to announce the 2025 edition of The Perovskite Handbook. This book is a comprehensive guide to perovskite materials, applications and industry. Perovskites are an exciting class of materials that feature a myriad of exciting properties and are considered the future of solar cells, displays, sensors, LEDs and more. The perovskite industry is at an inflection point, with dramatic investments and commitments, and perovskite could become important material to watch for all display developers. The handbook is now updated to January 2025 and lists recent developments and new companies, initiatives and research activities. 

Reading this book, you'll learn all about:

• Different perovskite materials, their properties and structure
• How perovskites can be made, tuned and used
• What kinds of applications perovskites may be suitable for
• What the obstacles on the way to a perovskite revolution are
• Perovskite solar cells, their merits and challenges
• Perovskite QDs, LEDs, and other applications
• The state of the perovskite market, potential and future

The book also provides: a history of perovskite research, a guide to perovskite companies and developers, information on leading collaboration and development projects, a comprehensive list of perovskite companies, market updates and much more!

We're happy to announce an update to our Perovskite for the Display Industry Market Report. This market report, brought to you by the world's leading perovskite and OLED industry experts, is a comprehensive guide to next-generation perovskite-based solutions for the display industry that enable efficient, low cost and high-quality display devices. The report is now updated to July 2024, with all the latest commercial and research activity - including 9 new research papers, new company, new brochures, and commercial updates and more!

Reading this report, you'll learn all about:

• Perovskite materials and their properties
• Perovskite applications in the display industry
• Perovskite QDs for color conversion
• Prominent perovskite display related research activities

The report also provides a list of perovskite display companies, datasheets and brochures of pQD film solutions, an introduction to perovskite materials and processes, an introduction to emerging display technologies and more

TCL CSOT demonstrated its latest displays, technologies and prototypes at Display Week 2024. The company is focused on inkjet printing technologies, and a lot of the displays on show were indeed printed.

So first up, we TCL demonstrated a 14" 2880x1800 400 nits 30-120Hz ink-jet printed LTPO AMOLED display. The display is produced on a glass substrate, with thin film encapsulation (a 'hybrid OLED').

Samsung Display had a rather large booth at Displayweek 2024, showing its latest OLED displays and technologies. Samsung showed several displays - including foldable smartphone panels, laptop and tablet displays, two QD-OLED displays, its 9.4" round automotive AMOLED, and more.

One interesting display was a panel that combines a foldable and a rollable display, that can open up to an impressively large display. Samsung brands it as a Flex Note Extendable Display.

Japan-based Sharp Corp, an LCD display industry pioneer, announced that it will stop all of its large-area LCD production by the end of 2024. Sharp's Osaka-based factory was the last LCD TV fab in Japan, and it will be turned into a data center run by its subsidiary Sakai Display Products Corp.

Sharp says that its current midterm plans are strengthen its home appliances and office equipment businesses, by incorporating AI technologies. It also plans to sell its semiconductor business. Sharp says it will focus its remaining small/medium LCD display business on the automotive and VR sectors.

Sony announced its 2024 TV lineup, and interestingly, the top model (the Bravia 9) is a Mini-LED backlit QLED TV. The entry-level model (the Bravia 7) is also a QLED display, while the mid-range model, the Bravia 8, is based on LGD's WOLED panels.

The Bravia 8 offers 55-, 65- and 77 inch 4K WOLED panels, Sony's OLED Acoustic Surface Audio+ sound system, an upgraded XR Processor, and the creator calibration picture settings. Sony's 2024 TVs will launch in the summer of 2024.

Researchers at Lawrence Berkeley National Laboratory (Berkeley Lab), led by Prof. Peidong Yang, developed a new 3D printing ink based on perovskite materials, that exhibits unity photoluminescence quantum yield (PLQY). Interestingly, as it is a 3D printable ink, it is possible to create luminescent objects from it, as seen in the image below:

The researchers brand the new ink as 'supramolecular ink', and say it is produced without any rare metals. It is a combination of several powders containing hafnium (Hf) and zirconium (Zr), and is made at room temperatures. In a process called supramolecular assembly, tiny molecular building block structures are self-assembled within the ink. These supramolecular structures enable the material to achieve stable and high-purity synthesis at low temperatures.