Researchers reach 100% IQE with a single-layer TADF device, getting closer to commercial viability

A few months ago we reported on research conducted at Germany's Max Planck Institute, led by Prof. Paul W.M. Blom, that looks into single-layer OLED devices. In such devices, a single TADF OLED emitter layer is sandwiched between two electrode - a much simpler design compared to commercial OLED devices that use multilayer stacks, sometimes with 10 or more layers.

The researchers the the MPI say that in fact it is possible to develop highly efficient OLEDs with just the TADF emitter, as there's no fundamental reason or major benefits that arise from multilayer OLEDs. The researchers continue their work, and now they have developed a new single-layer blue OLED in which every injected electron is converted into a photon - or 100% IQE. This is the first time that such a single-layer OLED device was demonstrated (see image above).

Read the full story Posted: Jun 04,2023

Sinovia demonstrates its roll-to-roll printed OLEDs at Display Week 2023

Sinovia Technologies developed roll-to-roll printed OLED production technologies, that enable the companies to produce simple (segmented) flexible OLED displays at low cost.

The company has a pilot OLED production line for smart labeling, packaging, etc. The company demonstrated some of its displays at Display Week 2023. Even thought these are low-cost solutions, the performance of the OLEDs is good, with over 10,000 operating hours.

Read the full story Posted: Jun 03,2023

The Fraunhofer FEP showcases its latest OLED microdisplays at Display Week 2023

During Display Week 2023, the institute demonstrated its latest displays, including the world's highest-density OLED microdisplays, reaching a PPI of 10,000 with a pixel size of only 2.5 um.

Fraunhofer's 10,000 PPI display was e a 0.18" 1440x1080 (monochrome) panel, produced on 300 mm wafers, using a 28 nm backplane process. The Fraunhofer also showcases ultra low-power microdisplays, and more technologies.

Read the full story Posted: Jun 03,2023

JDI announced it will acquire JOLED IP and some of its employees, but will not acquire its production facilities and technology

A few months ago we reported that Japan-based inkjet printing OLED developer JOLED has filed for bankruptcy, and that Japan Display (JDI) will take over JOLED's technology and operations. JDI released an official statement regarding JOLED and its plans for the future.

LG UltraFine OLED Pro photo

So indeed on March 7 2023, JDI signed a basic agreement to support JOLED. Since then the two companies held 'extensive discussions', following which JDI decided to form a subsidiary company called 'JDI Design and Development' or JDIDD, that will acquire JOLED’s OLED technology development business and all related operations.

Read the full story Posted: Jun 02,2023

Merck launches new highly-effective ALD OLED encapsulation materials

Merck introduces new OLED encapsulation materials that the company says offer superior flexibility, higher reliability, and longer lifetime for flexible devices compared to existing solutions. 

Merck says that its new low-temperature ALD silicon materials offer highly improved barrier characteristics - 100 times more effective than current solutions. And they can be deposited in thin layers - 20 times thinner than existing solutions. Merck introduced low-temperature ALD silicon materials in 2022 for automotive OLED, and the company expects that the new materials will be used for the encapsulation of flexible IT OLED displays (laptops, tablets and monitors).

Read the full story Posted: Jun 02,2023

Kopin increases its potential OLED production capacity via new partner agreements

Kopin Corporation announced that it has executed new partner agreements to increase its OLED production capacity. The company operates its OLED microdisplay business in a fabless model and so it can utilize several OLED deposition and silicon wafer partners.

Kopin says that it entered these new agreements to support several US Department of Defense and NATO-friendly projects. Kopin says that via these new agreements, it also gained access to a broader set of OLED displays and other advanced technologies - which likely means it actually intends to buy complete displays from other OLED microdisplay makers. 

Read the full story Posted: Jun 01,2023