ETRI develops a flexible OLED with transparent graphene electrodes

Researchers from Korea's ETRI (Electronics and Telecommunications Research Institute) developed a flexible OLED panel that use a transparent graphene electrode. ETRI will detail this new graphene-based OLED panel at SID DisplayWeek 2018 in May.

ETRI graphene-electrode OLED prototype, Apr 2017

A rigid graphene-based OLED prototype (ETRI 2017)

The researchers produced a "fully operational" 40x40 mm OLED panel that uses the pixelated graphene film as electrodes.

The OLED Handbook, 2018 edition

We are happy to announce the eighth edition of The OLED Handbook, the most comprehensive resource on OLED technology, industry and market - now updated for 2018. The OLED industry grows and changes very fast, and the new edition include new details on the OLED mobile display market, new production fabs in China, OLED TVs, flexible OLEDs and more.

Reading this book, you'll learn all about:

  • OLED technology and materials and production processes
  • How OLEDs compare to LCD displays
  • OLED TVs, flexible OLEDs and transparent OLEDs
  • The OLED lighting industry
  • The future of OLED displays and lighting and the challenges ahead

The book also provides:

  • A history of OLED development
  • A guide to OLED investment
  • A comprehensive list of OLED companies
  • A list of existing and planned AMOLED fabs
  • OLED lighting roadmaps
  • An in-depth look into flexible OLEDs and OLED encapsulation

The OLED handbook has been read by hundreds of display engineers, business developers, researchers, equipment vendors, OLED material companies, private investors and others who wished to learn more about OLEDs today and in the future. I truly believe that it is the best introduction to OLED displays and lighting!

SEL develops a new Host-Guest system that enables red phosphorescent emitters with 5.4X the lifetime

Researchers from Japan's Semiconductor Energy Laboratory (SEL) developed a novel Host-Guest system that drastically improves the lifetime of OLED emitters. The researchers report that using this system, a deep-red phosphorescent emitter achieved 5.4 times longer the lifetime compared to the same emitter with a conventional system.

The researchers will present the new system at SID DisplayWeek 2018 in May. The new system is not only highly durable, it also satisfies the red chromaticity of the BT.2020 standard.

AGC developed an ultra-thin flexible cover glass suitable for foldable devices

Asahi Glass developed an ultra-thin chemically strengthened 0.07 mm flexible glass that has a bending stress of over 1200 MPa - which makes it possible to use this as a cover glass for foldable devices with a curvature radius of 2.5 mm or even lower.

AGC 0.1 mm flexible glass (2011)

To create this glass, AGC developed a new process that achieved 80% higher impact-failure resistance compared to glass with conventional chemical strengthening. AGC will discuss this new glass at SID Displayweek 2018 in May - and will also hopefully demonstrate it.

OLEDWorks starts producing curved OLED lighting panels

In April 2017 OLEDWorks announced its roadmap for 2018-2020, stating that it will released 80-100 lm/W flexible panels in 2018. It seems that the company indeed started producing flexible curved OLED panels, even though it did not announce this officially.


Germany-based producer WALO-TL announced it will present two new OLED lighting lamps (the WALOSUMMER and WALOSPRING) - and both use a range of panels made by OLEDWorks, including curved rectangular panels. In addition, OLEDWorks published the following image on its instagram feed, showing an RGB Studio lamp that uses what seems to be the same panels.

Researchers discover a new way to improve the current injection in OLED devices

Researchers from the Max Planck Institute for Polymer Research developed a way to improve the current injection from the positive electrode in OLED panels. To enhance the hole injection the researchers covered the positive electrode with an ultrathin layer of an organic semiconductor as a spacer layer between the electrode and the light-emitting organic semiconductor.

Current flowing through an OLED (Max Planck Institute for Polymer Research)Current flowing from an electrode (left) to the organic material (right) via a thin molecular layer (center)

The researchers say that they did not actually expect that adding an extra layer and eliminating the physical contact between the electrode and the emitting layer actually improves the electrical contact.

Samsung aims to ship 43 million Galaxy S9 phones in 2018

Yesterday reports from Korea suggested that pre-orders for the Galaxy S9 in Korea are 30% lower compared to the pre-orders of the Galaxy S8 in 2017. The Korea Herald, however, today says that Samsung believes it will sell more Galaxy S9 phones than it did with the GS8.

Samsung Galaxy S9 and S9 Plus photo

The Korea Herald says that Samsung told its suppliers that its target is to sell 43 million GS9 (and GS9 plus) phones in 2018. In 2017, Samsung shipped 41 million GS8 and GS8 plus phones. In 2016, Samsung shipped 48 million GS7 phones, so even if it reaches its target of 43 million GS9 phones, it will still lag behind The GS7.