LG Display unveiled its latest OLED TV technology, branded as OLED EX. LG says that these WOLED panels combine new deuterium compounds and personalized algorithms to improve the image quality and increase brightness by up to 30%. EX is an acronym of Evolution and eXperience.

LG Display says that it has "successfully converted the hydrogen elements present in organic light emitting elements into stable deuterium". LGD extracts the deuterium compounds from water, and after stabilization, the compounds allow the OLED devices to be brighter - and also last longer.

The Fraunhofer FEP, in collaboration with GlobalFoundries Dresden Module One and digades, developed an ultra-low power color OLED microdisplay. The researchers at the Fraunhofer say that this display consumes the least power compared to all available microdisplays.

The new microdisplay was developed as part of the Backplane project, funded by the German government (SWMA grant number100392259). The researchers presented a prototype display that features two primary colors and a QVGA (320x240) resolution. The display is based on the Fraunhofer's existing OLED-on-silicon technology, which up until now was used to create monochrome microdisplays.

A few days ago we posted that Apple has reportedly decided to delay its iPad OLED launch to 2023, and the company canceled its current joint development project with Samsung Display, as SDC could not develop what Apple wanted - a tandem stack structure, which would have improved the lifetime and performance of the AMOLED display.

According to a new report from Korea, LG Display is also developing a tablet display for Apple - a 12.9" AMOLED panel. LG's iPad display will be ready for mass production by 2023-2024, and it will use a tandem (2 stacks) architecture on an LTPO backplane. As SDC's project is canceled, it is likely that LG's 12.9" will be the first OLED adopted by Apple's tablets.

Hyperfluoresence emitter system developer Kyulux announced that its green material is getting close to commercialization. The company is now working closely with OLED makers, preparing for early adoption.

Kyulux says that its green emitter has not only met the required performance of OLED panel makers, in terms of efficiency, lifetime and driving voltage - but has actually surpassed the performance of green phosphorescent emitters in top emission devices. The green HF device achieves higher current efficiency, longer lifetime and offers a narrow emission spectrum and can thus enable better chromaticity.

Our friends at DisplayMate posted an in-depth technical review of the iPhone 13 Pro Max display. The 6.7-inch 1284x2778 10Hz-120Hz 1200 nits LTPO AMOLED receives DisplayMate's highest display performance grade of A+.

DisplayMate says that the new display outperforms the display adopted by Apple in last year's iPhone 12 Pro Max. The iPhone 13 Pro display's new adaptive 120Hz refresh rate which results in a 25% boost to power efficiency. The new display is also brighter by 27% and enjoys a higher absolute color accuracy. The size of the notch was also reduced by 20%.

Researchers from Jilin Univeristy in Changchun, China, have managed to improve the brightness of OLED devices by 25% (21 enhancement in current efficiency) by applying corrugated alloy (Ag-Al) electrodes.

AFM images of the corrugated alloy electrodes

The researchers say that the periodic corrugations were precisely tuned based on the composition ratio of the alloy to efficiently recover the photons trapped in surface plasmon-polariton resonance.

Taiwan-based INT Tech announced that it has produced new AMOLED microdisplay samples at its $143 million fab in Taizhou in Zhejiang province, China, and the company is still on track for mass production in Q4 2021.

The new 0.7-inch INT Tech uNEEDXR display is a direct-emission display that features a brightness of over 5,000 nits, 3147 PPI and a low power consumption (less than 500mW@5000nits).

Samsung Display announced its latest OLED panel, the Eco²OLED, which increase light output by 33% compared to SDC's previous OLED panels. The increase light translates into a power consumption reduction of up to 25%.

For the Eco²OLED panel, Samsung finally managed to commercialize a polarizer-free OLED, after many years of R&D. The first phone to adopt this display will be Samsung's upcoming Galaxy Fold 3. Interestingly Samsung says that the new design also enabled it to incorporate a high-quality under-the-display camera as more light is entered through the OLED.

Researchers from the University of Michigan developed a new electrode design for OLED devices, that can increase light output by up to 20% compared to current electrodes. The new electrode is compatible with current production processes.

The new design helps to minimize the waveguiding effect, which traps around 80% of the light produced by the OLED emitters. The researchers used a modal elimination approach, which involves optimizing the organic stack and the replacing the ITO anode with a thin film of silver deposited on a layer of copper. This kind of approach can be applied to other light emitting structures such as inorganic LEDs, perovskite LEDs, quantum dots and more.

Canada-based OTI Lumionics developed innovative OLED materials and technologies. In August 2020 the company announced that it will start shipping its 2nd-gen ConducTorr Cathode Patterning Materials (CPM) by the end of 2020 to customers, which will use these to create OLED displays with under-the-display camera and face unlock technologies.

We had a short talk with the company's founder and CEO, Dr. Michael G. Helander, during which we discussed the company's technology, status and future plans.