Quantum Dots

Researchers develop a perovskite-based 3D printing ink that could power next generation OLED devices

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.

Read the full story Posted: Feb 08,2024

Toray Research Center shows how OLED inspection and analysis enable the production of higher performance OLED panels

Toray Research Center (TRC) has launched a new open online webinar focused on OLED inspection and analysis technologies. TRC, who supplies technical analysis and support for R&D and manufacturing, invites you to attend the online lectures at no cost, to get a deeper understanding on OLED inspection and analysis, and how to achieve higher performance displays. The webinar recordings are accessible until February 15.

Toray Research Center TRC banner

The webinar include four presentations:

  • Identification of Trace Impurities Using High-Resolution Mass Spectrometry (Toward High-Quality OLED Panels)
  • Analysis of Small Molecule OLED Layers in Solution Process and Vacuum Deposition Process
  • Moisture Diffusion Evaluation in Encapsulant
  • Analysis of QD sheet (Quantum Dot Enhancement Film)

The first presentation, titled Identification of Trace Impurities Using High-Resolution Mass Spectrometry (Toward High-Quality OLED Panels), details examples of possible degradation in OLED devices that lead to performance reduction. In this presentation, TRC discusses the role of analysis, the advantages of high mass resolution, different evaluation techniques and how it can help developers increase the performance of OLED displays.

Read the full story Posted: Feb 06,2024

SDC upgrades its QD-OLED line, starts producing 31.5" 4K panels

Samsung Display announced that it is beginning to produce a new 31.5" 4K QD-OLED. This is SDC's highest density QD-OLED display, at 140 PPI. The company recently upgraded its QD inkjet printing deposition system to support this higher resolution. It will also enable SDC to produce 8K 65" QD-OLED displays (that will also be 140 PPI). 

Samsung Display also announced that next year it will start producing 27" QHD QD-OLED monitor panels that will support a 360Hz refresh rate, targeting the gaming monitor market. 

Read the full story Posted: Dec 13,2023

Reports suggest Kateeva's printers failed Samsung's QD printing tests, will not be used for QD-OLED production

According to reports, Kateeva's QD-OLED printing project saga is not over. Samsung Display tested the company's latest printers, but these failed the tests and Samsung Display will not but these printers. SDC planned to replace the currently-used Semes' printers, which also suffer from low performance.

Kateeva YIELDJet TFE system photo

Samsung Display is also not committed yet to expand its QD-OLED production lines, which means that in any case it does not need to buy new printers for production expansion. Earlier reports suggested that SDC wanted to upgrade it current capability for higher density (to reach 8K TV printing), so this may be the reason behind the testing of Kateeva's new printers.

Read the full story Posted: Nov 14,2023

The Korean Government to designate OLED as a national strategic technology

In April 2022, we reported that the Korean Government is considering designating OLED technology as a "national strategic technology", which means that companies will be given tax benefits, to encourage further investments and R&D in the OLED industry.

According to new reports to Korea, the government will unveil a new draft tax law tomorrow that will indeed include new benefits to OLED developers, as OLED will be regarded as a national strategic technology indeed. This will encourage companies to establish new OLED R&D activities and new production lines. The government is also also looking to add microLED and quantum dot display technologies as strategic technologies.

Read the full story Posted: Jan 13,2023

The MicroLED Industry Association to host a Perovskite microLED technology webinar

On March 27 the MicroLED Industry Association will host a private webinar on perovskite materials for the microLED industry. Perovskite materials hold great promise for the solar industry and in recent years we are seeing promising signs for the adoption of perovskites the display industry.

Researchers Fabricate Large-area Sky-blue PeLEDs image

The upcoming Seminar will feature four world-leading speakers, and will also be open to a Q&A session. We will learn more about the state-of-the-art perovskite research and development, with a focus of course on applications in the microLED industry - for both perovskite QDs and PeLEDs.

Read the full story Posted: Dec 20,2022

Kateeva starts to ship 8K QD deposition systems to Samsung Display

According to reports, Kateeva started to ship quantum dots inkjet printing equipment to Samsung Display, for the production of QD-OLED panels. It appears as if Samsung is interested in producing 8K QD-OLEDs, and its current inkjet printing supplier, Semes, is not ready with printers that support 8K QD deposition.

Kateeva YIELDJet TFE system photo

Kateeva announced that it has designed a new system, called the YIELDjet Jarvis, that supports 8.5-Gen substrates and can indeed enable 8K TV deposition. Kateeva says that the Jarvis system has the ability to print using solvent-based RGB inks or nanoparticle inks with its proprietary ink recirculation system to ensure uniform particle distribution.

Read the full story Posted: Dec 03,2022

Toray Research Center to host an OLED technology webinar to discuss dopant ratios

Toray Research Center (TRC) is now hosting online webinars focused on display technologies. TRC, who supplies technical analysis and support for R&D and manufacturing, invites you to attend the online lectures at no cost, to learn more about OLED, microLED and QD technologies and analysis of OLED devices.

Toray Research Center TRC banner

The webinars include recorded presentations, which will be available online up until to November 22. You can register for the webinars here.

The webinar will include three different presentations:

  • OLED dopant ratio for efficient emission
  • Laser-based processes for microLED production, analysis method to evaluate chips after transfer
  • Degradation analysis of QD-LED devices

Read the full story Posted: Nov 15,2022

Toray Research Center to host an OLED, MicroLED and QD technology webinar

In the next two weeks, Toray Research Center (TRC) is hosting online webinars focused on display technologies. TRC, who supplies technical analysis and support for R&D and manufacturing, invites you to attend the online lectures at no cost, to learn more about OLED, microLED and QD technologies and analysis of OLED devices.

Toray Research Center TRC banner

The webinars include recorded presentations, which will be available online up until to November 22. You can register for the webinars here.

Read the full story Posted: Nov 08,2022

The Perovskite for Displays Market Report updated to September 2022

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 September 2022, with all the latest commercial and research activity.

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.

Read the full story Posted: Sep 02,2022