Japan Display announces a breakthrough lithographic-based OLED production method

Japan Display (JDI) announced that it has developed a new OLED deposition technology, which they refer to as eLEAP, that is cost effective and can be used to create OLEDs that are brighter, more efficient, and longer lasting compared to OLEDs produced using mask evaporation (FMM). eLEAP also enables OLED freeform deposition. JDI regards its new technology as a " historic breakthrough in display technology".

JDI eLEAP aperture ratio image

eLEAP is based on a lithographic method, and does not require any masks. The main advantage seems to be that OLED displays produced by eLEAP technology can achieve an aperture ratio of 60%, compared with FMM OLEDs which achieve a ratio of about 28%. This means that the OLED displays can be driven at lower currents - which extends the lifetime, improves the efficiency and also enables higher-peak brightness when needed.

A study by LG Display shows that OLED is the optimal gaming display technology

LG Display says that according to an original research it has conducted, OLED is the optical gaming display technology.

LG Dispaly 48-inch bendable gaming OLED monitor (CES-2021)

In this research, several gamers played different gaming genres on LCD and OLED displays, and on curved and flat displays. The study results show that a gamer’s reaction time can be improved by using OLED, while a display’s curvature provides a more immersive gaming experience.

Samsung's laptop OLED displays receive UL's halo-free certification

Samsung Display announced that its OLED displays for laptop applications has received 'Halo Free' verification from the safety science leader, UL, for its glare-free and sharp picture quality.

Samsung OLED halo-free (UL verification)

Samsung explains that LCD displays suffer from light-blurring which occurs when the outline of a bright subject appears white on an image with sharp contrast. This is because even with local dimming, LCDs cannot adjust the backlight brightness exactly on the edge. OLEDs, with their self-lit pixels, do not suffer from this.

The Perovskite Handbook - 2022 edition

OLED-Info and Perovskite-Info are happy to announce the 2022 edition of The Perovskite Handbook. This book is a comprehensive guide to perovskite materials, applications and industry, and it is now updated to January 2022 and lists recent developments and new companies, initiatives and research activities.

Perovskites are an exciting class of materials that feature a myriad of exciting properties. Perovskites are now entering the display market, with applications in quantum dots, LEDs, lasers and more.

The Perovskite Handbook

Reading this book, you'll learn all about:

  • Different perovskite materials, their properties and structure
  • How perovskites can be made, tuned and used
  • What kinds of applications perovskites are suitable for
  • Perovskites Quantum Dots
  • Perovskite solar cells, their merits and challenges
  • Perovskites-based LEDs
  • The state of the perovskite market, potential and future

The book also provides: a history of perovskite research, a guide to perovskite companies and developers, information on leading collaboration and development projects, a comprehensive list of perovskite companies and much more!

Reports suggest that Meta is working on two VR headsets, one with miniLED displays and the other with microOLED displays

Reports suggest that Meta (Facebook) is developing two new VR headsets, with very different display technologies - one with mini-LED displays, and the other with OLED microdisplays (as we reported in August 2021).

Oculus Rift consumer photo

The Oculus Quest Pro (codenamed Cambria) will be based on mini-LED displays, . Meta aims to launch the Quest Pro in the summer of 2022 and hopes to sell 3 million headsets by the end of the year.

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.

Consumers are ready for an OLED laptop, at least according to our poll

In the last couple of years, we have seen OLED displays starting to be adopted in high-end laptop devices, and recently prices of OLED laptop panels have dropped and more mid-range laptops have opted for OLED displays (usually as an optional upgrade over an IPS LCD).

Will you next laptop featurean OLED display? (poll, 2021-08)

I recently bought a new laptop, the Lenovo Yoga Slim 7i Pro OLED, with a 14-inch 2880x1800 (2.8K) 90Hz AMOLED display. The screen, as expected from an OLED, looks brilliant. Some people are still concerned about OLED in laptops, though. Some worry that the display might suffer from burn-in.

OLED vs MicroLED - a technology comparison

MicroLED displays are exciting to many, as the technology seems to be the front runner for the next-generation display of choice in many market segments - from AR/VR glasses through wearables to TVs and IT displays.

MicroLED vs OLED vs LCD vs MicroLED tablet
The MicroLED industry though, even after billions of dollars spent on R&D, is still at a very early stage. Production costs are high, processes are not reliable enough, and there are several technical challenges to overcome before production can begin (except for some niche areas such as ultra large-size premium TVs).

OLED lighting may benefit your sleep, and even help reduce weight

Researchers from the University of Tsukuba in Japan have compared the effects of LED and OLED lighting on physical processes that occur during sleep. The researchers show that OLED exposure has a reduced effect on sleep architecture and energy metabolism.

LED and OLED sleep lab (University of Tsukuba)

OLED devices emits white light which contains less blue light compared to LED devices, and this does not lead to any effect on sleep architecture, but it does reduce energy expenditure and core body temperature. In addition, fat oxidation during sleep was significantly lower after exposure to LED compared with OLED. Thus OLED lighting has a similar effect to that of dim light.

Some Apple iPad Pro users complain of 'blooming' in the mini LED display

Apple's latest iPad Pro tablets use a mini-LED backlit LCD (which Apple refers to as Liquid Retina XDR). This relatively new display technology is seen as a way to achieve almost OLED-quality contrast ratio and an improved power consumption as the thousands of small LEDs enable very small dimming zones.

While most reviews of the new display are quite positive, some users are complaining of "blooming" - the edges of bright objects on dark backgrounds tend to 'bleed' as the dimming zone is not small enough.

Cambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDsCambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDs