OLED News and Information Aggregator Blog
Posts tagged university
Biopixels developed from bioluminescent E. coli bacteria
Jan 2nd
Researchers from the University of California San Diego managed to develop “biopxels” – made from bioluminescent E. coli bacteria. The researchers managed to sync a colony of bacteria using quorum sensing. Each colony is thus a single “pixel”. The researchers produced a “chip” which holds 13,000 colony-pixels (a total of about 50 million bacteria). This technology isn’t likely to lead us to biology TVs, but the researchers do hope to develop this technology for biological sensors. read more
Continued here:
Biopixels developed from bioluminescent E. coli bacteria
New white top-emitting OLED architecture achieves high efficiency and outstanding color quality
Dec 24th
Researchers from Dresden’s University of Technology (TU Dresden) developed new highly efficient white top-emitting OLED design that feature “outstanding” color quality, and is compatible with flexible OLEDs. In this new design a refractive index matched microlens film was laminated to the top-emitting OLED to form direct optical contact. This enabled the researchers to achieve a CRI of 93, CIE coordinates of (0.472, 0.430) and an emission from 410 to 750 nm that almost spans the complete visible spectrum (380 to 780 nm). The efficiency is up to 30 lm/W (on par with the latest record white OLEDs from Novaled and OSRAM ). The lamination of such an outcoupling structure should be fully roll-to-roll compatible and even allows to be used as an encapsulation film when water and oxygen barriers are added. read more
Original post:
New white top-emitting OLED architecture achieves high efficiency and outstanding color quality
Horizontal orientation of emitting OLED molecules
Nov 1st
Prof. Daisuke Yokoyama from the Yamagata University in Japan published an interesting research paper about molecular orientation in small-molecule OLEDs. Daisuke says that orienting the molecules horizontally has two positive effects: the light outcoupling efficiency is increased (by around 50% compared to randomly oriented emitters) and the charge transport between molecules becomes more efficient (which can lead to a lower driving voltage). Daisuke tells us that some materials in commercial OLEDs are already horizontally oriented – but not all. He claims that most phosphorescent emitters are not horizontally oriented yet. If so, we can expect good performance increases once these materials are oriented.
See the original post:
Horizontal orientation of emitting OLED molecules
Philips OLED Lumiblade – come play with us
Jul 10th
Students studying Communications at the University of Maastricht (Netherlands) visited Philip’s Lumiblade Creative Lab workshops in Aachen, Germany. They produced a nice video spot about the lab and Philip’s OLED lighting panels, and apparently got good grades, too. Philips opened the Lumiblade Creative Lab in April 2010, a place where professionals from a wide range of creative backgrounds can experience and experiment with Lumiblades OLED lighting panels . Philips’ lab can also give advice, guidance and practical support for OLED Lighting projects.
Here is the original post:
Philips OLED Lumiblade – come play with us
Researchers create a flexible array of inorganic LEDs
Oct 19th
Researchers led by John Rogers from the University of Illinois have developed a stretchable/bendable sheets of LEDs and light sensors. They are interested in applications that interface with the human body, and so they prefer inorganic LEDs to OLEDs as they are brighter, more reliable and are more easily made waterproof. The team has printed an interlaced array of LEDs, on a rigid wafer, then dissolved the top layer of the substrate to release a thin network of LEDs that can be transferred to a flexible, waterproof polymer sheet. Each LED is just 100 microns across (about the width of a human hair) and 2.5 microns thick and is connected to its neighbors by serpentine strands that can accommodate the deformation of stretching and twisting. They managed to put the arrays on aluminum foils, leaves ,sheets of paper and around nylon threads. read more
View post:
Researchers create a flexible array of inorganic LEDs
Demonstrate flexible electronic screen readers
Nov 27th
Source: klaipeda.diena.com read more
Read the original here:
Demonstrate flexible electronic screen readers
Researchers drive an OLED display using Carbon Nanotubes
Nov 24th
Researchers from the University of Southern California has created a large functional array of transistors made using simple solution-processing methods from carbon nanotubes. These have been used to drive a simple 4" OLED display, and the group is now working towards a ‘truly integrate’ OLED display that is both flexible and transparent. Carbon Nanotubes is a promising material for making control cibruit for displays – they are efficient, and can be used to make flexible and transparent displays. Now the USC researchers have found an ‘easy’ way to make large arrays of transistors with good performance
The rest is here:
Researchers drive an OLED display using Carbon Nanotubes
NEMO Project: 11 Partners Conduct Research on New OLED Materials
Nov 4th
Merck KGaA and DELO Industrial Adhesives announced today that it has launched a project called “New materials for OLEDs from solutions” (NEMO) together with renowned partners from industry and science. The objective of this project, which is being co-funded by the German Federal Ministry of Education and Research, is to develop innovative, soluble materials for use in large-area organic light-emitting diode components for devices such as televisions, electronic traffic signs or lighting systems.
Go here to see the original:
NEMO Project: 11 Partners Conduct Research on New OLED Materials
Polar OLED: New material company, spun-off the University of Hull
Nov 3rd
Polar OLED is a new company, spun off from the University of Hull in the UK. Polar is working on "liquid crystal based polymer OLED materials", and are currently shipping sample materials for research. Polar say that their materials will be far more cost effective to manufacture than what’s available today
View original post here:
Polar OLED: New material company, spun-off the University of Hull
OLED PROJECT GOES “TOPLESS” !
Aug 11th
The future of green lighting in “Project Topless” (Thin Organic Polymeric Light Emitting Semi-conductor Surfaces) a UK government sponsored project incorporating polymer OLED technology into super-energy efficient lighting for everyday use with the ability to crank out the equivalent of 50 watts of halogen light power in only 3.5 watts of organic light. – - The project which started in December
Original post:
OLED PROJECT GOES “TOPLESS” !