May 2009

DuPont new Green materials has lifetime of over a million hours

A few years ago, lifetime was the biggest issue with OLEDs, but it seems companies are showing very rapid advances. Dupont announced today that they developed new (third Generation) printable, solution process OLED materials.

The Green Gen3 material has over one million hours lifetime (that's over 100 years of constant use!) with 25 cd/A efficiency. The color coordinates are 0.26, 0.65. 

The light-blue Gen 3 (color coordinates 0.14, 0.12) has 38,000 hours from 1000 cd/m2, efficiency of 6.0 cd/A, and a lifetime of 38,000 hours. A deeper blue (color coordinates 0.14, 0.08) was developed with 7,000 hours. Due to its deep blue color, the lifetime of this material at the luminance required for a 200 cd/m2 display is calculated to be approximately 41,000 hours. 

The Gen-3 red has a lifetime of 62,000 hours, current efficiency of 13 cd/A, and color coordinates (0.68, 0.32). 

Read the full story Posted: May 29,2009

More info about Kodak's white lighting project

Yesterday we reported that Kodak got a 1.7M$ two-year contact from the DOE to develop key technologies and processes for OLED lighting panels. There wasn't much information in the original PR, so we got Kodak to explain it a bit for us, and here's what they say:

"The object of the proposed project is to construct OLED lighting panels with efficacy (> 50 lm/W) and lifetime (>20,000 h) superior to most of the current commercially available luminaires.  The lighting panels will be constructed of 15 cm x 15 cm lighting tiles that can be used to build lighting panels of different sizes and shapes.  The architecture is based on small molecule OLED and comprises four key technology components that enable this achievement: internal light extraction-enhancement structure, low voltage design, stacked architecture, and fluorescent-phosphorescent hybrid emitters.  The proposed project will focus on developing structures and processes suitable for high volume, low cost manufacturing (ie Kodak VIST technology) of these OLED lighting panels."

Read the full story Posted: May 28,2009

Kodak Awarded $1.7 Million U.S. DOE Contract to Develop OLED Lighting


Eastman Kodak has been awarded a $1.7 million two-year
contract by the United States Department of Energy (DOE) to develop key
technologies and processes for OLED lighting panels.



Kodak white light OLED prototype


During the Product
Development phase of the Solid State Lighting project, Kodak will
develop an OLED luminaire that meets Energy Star color and efficacy
specifications and will address key areas of manufacturing processes to
reduce cost. Kodak’s Vapor Injection Source Technology allows
manufacturers to significantly reduce unit-manufacturing costs, with
high manufacturing throughput and material utilization that initially
exceeds 50%, and could be greater than 75% in future manufacturing
applications.

Read the full story Posted: May 27,2009

Samsung shows a flexible 6.5" OLED Prototype


Samsung mobile display are showing a new 6.5" flexible OLED panel prototype. They say it's more flexible than any previous model by Samsung (and there have been a few...).



Samsung flexible OLED prototypeSamsung flexible OLED prototype


Samsung will demo this new panel at SID in a couple of days, so hopefully we'll get more details on the prototype.


Read the full story Posted: May 27,2009
Kyulux - Hyperfluoresence OLED emitters Kyulux - Hyperfluoresence OLED emitters