Blue color

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). 

Scientists at the Pacific Northwest National Laboratory scientist have designed, synthesized and tested new blue OLED materials. They claim that these new materials have an improved efficiency - by at least 25 percent.

Blue OLED prototype

The new materials are phosphorescent OLEDs.

Via EurekAlert

Plextronics announced today that its conductive ink has been shown to improve the performance of certain P-OLED devices.

BASF and Osram Opto Semiconductors have developed a highly efficient white OLEDs. The efficiency is over 60 lumens per watt, and meet the international Energy Star SSL standard for color requirements. 

Jin Sung-Ho, a chemistry professor at Pusan National Univeristy in South Korea, say they have succeeded in devloping efficient true-blue OLED materials. The project was state funded, together with Seoul National University.

Via AFP

At their yearly share holder meeting, UDC reviewed their company's and the OLED industry's progress. UDC also highlights continued adoption of its energy-efficient PHOLED technology in commercial displays and advances in its flexible OLED, white OLED lighting, and printable, phosphorescent P(2)OLED(TM) technologies.

Universal Display’s Chief Executive Officer, Steven V. Abramson, began the meeting by reviewing progress in the commercialization of the Company’s OLED technologies over the past year. Mr. Abramson followed this by highlighting advances in next generation technologies for display and lighting applications, and providing a vision of the future for the Company and the OLED industry.

Merck KGaA announced today that it is launching several new OLED materials, including a blue singlet emitter (SEB series) that features ultra deep blue color coordinates. Measured in solvent, this dopant shows a color as deep as CIE(x;y) 0.15/ 0.09 with a full width half maximum (FWHM) of only 54 nm.

Idemitsu Kosan and Sony announced the achievement of 28.5% internal quantum efficiency (IQE) in deep blue fluorescent OLED devices, the world's highest level of luminous efficiency for this technology.

Toray Industries Inc announced that it has succeeded in developing blue light emitting materials, boasting the world’s highest levels of efficiency and pure color emissions, for use in full-color organic EL displays.

The combination of Toray’s proprietary molecular design technology and nano-dispersion technology was instrumental in the material achieving superior light emitting performances of luminous efficiency 6 cd/A (candela/ampere) and color purity (CIE(x,y) = (0.14,0.10)) in combination with Toray’s electron-transporting material.

Evaluation of these newly developed materials with respect to its applications is currently underway and Toray is committed to accelerating the process towards its early commercialization.

Idemitsu Kosan and Universal Display Corporation today announced that they have signed an agreement to extend their collaboration to accelerate the development of phosphorescent OLED materials for use in displays fabricated through “dry” processing methods, such as vacuum thermal evaporation. The agreement expands the collaboration into red and green phosphorescent OLED materials, in addition to the blue materials that the two companies have been collaborating to develop since December, 2006.