OLED Encapsulation: introduction and market status - Page 3

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 expand the 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.

Last month we posted that the Korean Elec publication claims that Apple is aiming to adopt OLEDs in its next iPad Pro devices - and as Apple wants extended lifetime from these panels, the Korean panel makers are developing tandem OLED devices (easier for LG as it is already producing such panels for automotive applications).

Today another Korean publication, ETNews, has posted that Apple is aiming to start using OLEDs in its iPads in 2022. According to ETNews, Apple indeed reached out to both LG Display and Samsung Display for these OLEDs.

Poland-based Ergis Group has developed a new solution for OLED panel encapsulation. The noDiffusion film, developed in collaboration with Ergis' partners can be adopted as both the flexible substrate and the encapsulation layer for OLED devices.

The Ergis noDiffusion film offers high barrier properties, high level of optical transmittance and a low level of light scattering. This enables the production of OLED displays with extended lifetimes, efficiency and image properties. The noDiffusion film can also be used in the production of solar panels to increase panel efficiency and lifetimes.

Ergis says that the biggest advantage of its new film solution is the lower manufacturing costs, as the films already include an embedded encapsulation layer and could optionally include an embedded electrode layer.

Omdia says that the global foldable OLED display market will grow from 700,000 units to 3.9 million in 2020 (a 5X increase) - and will continue its fast growth to reach 73.1 million in 2025.

Omdia says that the main challenge of the foldable OLED market is the reliability of the displays - mainly the cover, the touch sensor and the polarizer films. Display makers will need to adopt new technologies such as ultrathin glass covers (UTG), touch sensors on TFE and color filters on TFE

Meyer Burger announced that it is selling its PixDro inkjet printing business to Germany-based Suss MicroTec SE. The agreed price is $5 million, and the transaction is expected to be completed by the end of February 2020. Meyer Burger reveals that PixDro currently has annual sales of around $8 million. This transaction continues Meyer burger's strategic focus on its solar (PV) business.

PixDro develops and manufactures inkjet printing equipment for for the electronics and semiconductor industries. PixDro started out as a startup in Isarel, and was later integrated into the Netherlands-based OTB-Group, which was later renamed Roth & Rau AG, which was then acquired by Meyer Burger. The company continues its journey and will now be part of Suss MicroTec.

According to a report from Korea, LG Display has halted production at one of its production lines at its E6 production fab, LG's 6-Gen flexible OLED line that commenced production at the end of 2018.

According to the report, the problem lies with LGD's thin film encapsulation equipment - specifically the equipment that deposited the organic particles - which apparently suffers from sub par performance, not good enough for commercial production. LG is using equipment made by its subsidiary LG PRI in the E6-1 line, which is now halted.

Researchers from the Korea Advanced Institute of Science and Technology (KAIST) developed a self-powered wearable and washable OLED display device. The whole device is fabricated on textiles and the efficient OLED devices are driven by polymer solar modules.

Both the OLED device and the polymer solar panels are sensitive to moisture and oxygen, and regular OLED encapsulation will not protect such a device when washed. The researches designed a new washable encapsulation barrier using both ALD and spin coating. The device is flexible (curvature radius of 3 mm) and survived 20 washing cycles of 10 minutes each with little change in performance.

Samsung Display is developing hybrid QD-OLED TV technology, and according to estimates, the company aims to begin trial production in 2019. It is also estimated that Samsung has several challenges to overcome, but according to new reports from Digitimes, Samsung is aiming to start installing equipment for the new fab as early as December 2018.

The new fab will begin operation in the second half of 2019 - pilot production at first which will be expanded to full scale mass production. The new fab will be built in Samsung's L8 LCD production line in Asan, and will take over one of the two lines currently in operation at the fab. Samsung's initial production capacity will be around 25,000 monthly G8 substrates.

In 2015, the EU launched the €4.4 million Flexolighting project (led by Brunel University London) with an aim to develop new materials, processes and methods to overcome current OLED lighting challenges - including lifetime, lighting uniformity and more.

The project's consortium announced that following the project completion and a rethinking of the complete OLED supply chain, it believes that high efficiency OLED lighting panels can be produced at a cost that is on a similar level with LED lighting.

Japan-based Meidensha Corporation announced that it has developed a new technology to deposit barrier films for bendable displays and electronics. The new process is done at very low temperatures (30 C) which can significantly lower energy costs compared to current plamsa-based processes (usually run at 100-150 C).

The new technology uses a 100% ozone environment. Together with Japan's AIST, Meidensha developed a device that continuously generates pure ozone. This technology was patented earlier this year.