Samsung aims to reduce the thickness of its future QD-OLED panels by removing the QD glass substrate

According to reports in Korean media, Samsung is developing a new process which will allow it to reduce the thickness of its QD-OLED panels.

Samsung Display QD-OLED panels at CES 2022

The current QD-OLED design uses two glass substrates, one for the TFT backplen (and the OLED frontplane materials), and one for the QD conversion layer. The new plan is to remove the QD glass substrate, and inkjet print the QDs directly on the OLED TFE encapsulation layer.

DSCC: miniLED IT panels are more expensive to produce than tandem OLED panels

DSCC posted an interesting article, comparing the production costs of OLED vs mini-LED panels for IT. DSCC estimates that for tablets and notebooks, a tandem structure will be used, and the panels will be based on rigid substrates.

Mini-LED vs OLED IT panel production cost comparison (2021-2025, DSCC)

In the chart above you see a production cost comparison, between 2021 and 2025, for 12.9" panels. DSCC looks at two OLED production options: a tandem OLED panel with an LTPO backplane produced in a 6-Gen fab, and a similar panel that uses an Oxide-TFT backplane and produced in a larger 8.5-Gen fab. As you can see, OLED panels are more cost effective, and will remain so throughout the forecast period.

Optimized Laser Cutting Processes and System Solutions for Separation of Ultra-Thin Glass

This is a sponsored post by 3D-MicroMac

Laser cutting processes of glass materials based on filament technology have been increasingly adopted in industrial applications. Besides standard glass thicknesses ultra-thin glass offers exciting opportunities for further improvements of new devices.

Flexible OLED glass photo (3D Micromac)

The main reason for this is the perfect match of material properties like mechanical resistance and flexibility as well as optical performance. The required machining processes to perform perimeter cutting as well as structuring and via drilling are confronted with high quality requirements.

SDC collaborates with ULVAC to develop 8.5-Gen vertical OLED deposition

As demand for larger mobile OLED displays, for laptops, tablets and monitors is on the rise, there are reports that Samsung Display is considering building a 8.5-Gen AMOLED fab dedicated for laptop and IT displays.

Samsung Display's AMOLED displays for tablets and laptops photo

This new fab will be the first 8.5-Gen RGB OLED deposition fab, and Samsung is looking into new technologies to enable OLED deposition on larger substrates. It is reported today that SDC is developing, in collaboration with ULVAC, vertical deposition technology.

LG Chem developed a PET-based foldable OLED cover film, says it is more durable than Polyimide and UTG

LG Chem announced that it has developed a new PET-based foldable OLED cover film. LGC says its new film is thinner and more durable than both polyimide films and Ultra-Thin Glass, currently used in foldable OLEDs.

PET-based foldable OLED cover film (LG Chem)

LG Chem designed new materials, which are coated on both sides of the PET film to strengthen its heat resistance and mechanical properties. The company says the new film withstands over 200,000 folding cycles.

OLED webinar to introduce OLED lighting manufacturing and R2R production

An AILU (Association of Industrial Laser Users) webinar, scheduled for September 15, will introduce the basics of OLED lighting, discuss the choice for the right substrate and encapsulation material as well as the current status of roll-to-roll processing. The webinar is sponsored by 3D Micromac, the industry leader in laser micromachining and roll-to-roll laser systems.

The webinar will also show results from the EU-funded LAOLA project, which is a collaboration between German and Japanese companies and research institutes. The LAOLA project, led by the Fraunhofer FEP, develops the use of ultra-thin flexible glass as a substrate and encapsulation material in roll-to-roll technology for this purpose.

OLED developments at the IIT's FlexE Center

The National Center for Flexible Electronics (FlexE) was established in 2014 as a Centre of Excellence at the Indian Institute of Technology (IIT) in Kanpur. The vision of the center is to "catalyse the development of domestic industry in the field of large area flexible electronics".

OLED lighting prototypes, FlexE Center

The FlexE center has some interesting OLED projects, and we recently had a discussion with researchers from the center to learn more about the OLED R&D activities.

DSCC details Samsung's upcoming foldable OLED phones

DSCC posted an interesting blog post in which the company shares its information on Samsung's upcoming foldable smartphones.

Samsung Galaxy Z Flip photoSamsung Galaxy Z Flip

First up is the Galaxy Z Flip 3 (which is a bit strange as there's no Galaxy Z Flip 2). This new phone will feature an Ultra Thin Glass cover - which for the first time will not be exclusively produced by SCHOTT. This time Corning will supply some of the UTG for Samsung. According to DSCC, Corning’s UTG will be processed by Korean supplier eCONY. This is interesting - a while back it was reported that Samsung Electronics halted its UTG project with Corning.

Kolon says it supplies polyimide films to Xiaomi's Mi Mix Fold cover window

Kolon Industries says that the company is supplying colorless polyimide (CPI) films to Xiaomi - used as cover windows for Xiaomi's latest Mi Mix Fold smartphone. Xiaomi sold over 40,000 such smartphones within one minute, and the company hopes to ship around 500,000 units in total.

Xiaomi Mi Mix Fold photo

Kolon says it is the only company that produces such CPI films, and the company says it also supplied films for Huawei's Mate X, Motorola's Razr and Lenovo's Thinkpad X1 foldable laptop - and will also supply to Oppo and Vivo for their own foldable devices.

UBI says UTG will hold a 80% market share in the foldable OLED cover material market

UBI Research estimates that Ultra-Thin Glass (UTG) will hold a 80% market share in the foldable OLED panel cover material market. The rest of the market will adopt Polyimide films.

UTG vs PI, foldable cover material forecast (2021-2025, UBI Research)

According to UBI, Samsung Display will only use UTG in its future foldable OLED displays. Transparent Polyimide films will be used in budget models, or for displays larger than 10" in size. BOE and CSoT currently use Polyimide films in foldable OLEDs, but both companies are looking to adopt UTG in future displays.

Merck - Advancing Display, Advancing LifeMerck - Advancing Display, Advancing Life