The Fraunhofer Institute for Photonic Microsystems (Fraunhofer IPMS) has over 200 employees, doing research in electronic, mechanical and optical components and their integration into devices and systems.
The Fraunhofer IPMS has been working on OLED since 2000, and in 2009 launched a new department called COMEDD (the Center for Organics, Materials and Electronic Devices Dresden) to handle its OLED research and pilot fabrication. COMEDD was turned into an independent Fraunhofer Institute in 2012 and now it is a business unit at Fraunhofer FEP.
In January 2009 we interviewed Prof. Karl Leo, Institute Director of the Fraunhofer IPMS.
The latest Fraunhofer OLED news:
LetinAR adopts the Fraunhofer's FEP low-power OLED microdisplays in its new pinhole effect PinMR AR technology
The Fraunhofer FEP institute has teamed up with Korean-based LetinAR to develop an ultra-low-power OLED microdisplay based optic lens for AR applications. The Fraunhofer and LetinAR will present the new technology at MWC 2019.
LetinAR's PinMR technology uses the Pinhole Effect with tiny mirrors and embedded them with eyeglass lenses. The PinMR mirrors reflect the light generated by a microdisplay and guide it into the user's pupils. Users may view the virtual image created via microdisplay equipped with magnifying see-through optics as well as the image from the real world at ease. Human eyes cannot detect the mirrors, which are smaller than pupils. Only the virtual image formed by the light reflected by those mirrors is visible.
Researchers from the Fraunhofer FEP Institute developed a miniaturized OLED-on-silicon based phosphorescence sensor. Such sensors are used today typically for oxygen concentration measurement. The researchers say that this technology enables a small-sized sensor that offers a fast and precise evaluation. In the future such sensors could be produced at a relatively low cost.
The new sensor is based on a chemical marker that is excited by modulated blue OLED light. The phosphorescent response of the marker is then detected directly inside the sensor chip. The OLED device is 4.7 x 2.2 mm in size. The researchers hope to be able to reduce the size of the entire chip down to 2 x 2 mm.
The Fraunhofer FEP institute, the Holst Center and other partners have developed a 15-meter long OLED lighting panel, the longer OLED device ever (beating their own 2017 record of a 10-meter OLED). This work was done as part of the Lyteus, the EU's €14 million initiative within PI-SCALE.
The partners in this project say that this is the first OLED produced using a new unique roll-to-roll (R2R) process that combines the performance of an evaporated OLED stack with solution processing of auxiliary layers.
The Fraunhofer FEP developed a wearable OLED lighting button, is ready to help commercialize the technology
Researchers at the Fraunhofer FEP institute developed a new wearable OLED-based "button" that can be integrated into textiles. The OLEDs can be designed in any shape, be transparent, dimmable and also patterned. There is also a two-color variant.
The Fraunhofer developers say that such elements can be used for fashion trends, branding, safety applications, light therapy and more. The so-called O-Button is based on an OLED deposited on a wafer-thin foil combined with a micro-controller on a conventional circuit board.
Researchers from the Fraunhofer FEP institute developed a new micro-patterning process using an electron beam to produce OLED microdisplays on silicon substrates. This could enable a new way to produce direct-emission OLED microdisplays, which will be more efficient and bright compared to the current ones that use color filters.
The electron beam patterning is performed after the encapsulation step - the beam goes through the encapsulation layer and can be used to modify the emission of the OLED materials. To create red, green, and blue pixels, an organic layer of the OLED itself is ablated by a thermal electron beam process.
In January 2015 the EU launched the LOMID project to develop next-generation large-area OLED microdisplays, and in 2017 the partners in the project announced the production of a 1-inch diagonal 1200x1920 (2,300 PPI) 120Hz curved OLED microdisplay.
The Fraunhofer FEP demonstrated this panel at SID 2018, as you can see in the video above. The institute also demonstrated a new design which uses two such panels and special optics to provide double the resolution for each eye.
Fraunhofer, Holst and VTT developed a new flexible OLED lighting bracelet produced at the EU PI-SCALE line
The Fraunhofer FEP, together with VTT and the Holst Center developed a new wearable OLED lighting bracelet, one of the first one of the first flexible organic electronic product to be produced at the European PI-SCALE pilot production line.
The yellow and red OLED deposition in this prototype was performed at the Fraunhofer FPP (which can handle both sheet-to-sheet and roll-to-roll processes), while the barrier web was produced at the Holst Centre. VTT integrated the OLEDs into the bracelet. Such a bracelet, with its low power consumption, could be used as a security device, as a fashion jewelry, and more.
Ten Germany-based companies established a new OLED lighting alliance, called the "OLED Licht Forum" that aim to develop and promote OLED lighting technologies through dialogue and expert exchange. The forum will also organize conferences, lectures and institution visits.
The forum was founded by OLEDWorks, OSRAM, Merck, BASF coatings, EMDE, Fraunhofer, Hema electronic, Irlbacher, APEVA and WALO-TL. One of the first activities will be to create an OLED showroom in Germany that will be open to the public.
The LOMID project partners manage to produce 1" curved WUXGA OLED Microdisplays at satisfactory yields
In January 2015 the EU launched a new project to develop next-generation large-area OLED microdisplays. The so-called LOMID (Large cost-effective OLED microdisplays and their applications) project's main goal is to produce 13x21 mm (~1-inch diagonal) 1200x1920 (2,300 PPI) 120Hz curved OLED microdisplay.
Dr. Uwe Fogel, the project's coordinator from the Fraunhofer FEP institute, updated today that the consortium managed to produce the first microdisplay samples at satisfactory yields, and it is now improving these yields. LOMID partners are already demonstrating the microdisplays in smart glasses for both VR and visually-impaired people.
The Fraunhofer FEP demonstrate AR/VR dataglasses based on its SVGA bi-directional OLED microdisplays
The Fraunhofer FEP institute has successfully integrated its bi-directional OLED microdisplays into an VR / AR HMD (or dataglasses, as the Fraunhofer calls it) for 2D and 3D content.
The new HMD demonstrator uses the Fraunhofer's SVGA (800x600) displays and connects via a USB interface and an HDMI connection. The bi-directional displays can be used for eye tracking to support novel user interfaces.