DuPont - Page 5

The new set of materials rely on DuPont hole-injection layer (HIL) material and include those essential in the construction of an OLED display, such as light-emitting and charge-transport materials.

DuPont Displays said it has also exceeded the reported performance of other solution-based OLED materials and has measured accelerated lifetimes of the three primary colors that could translate in a display to 20,000 hours of white lifetime (which is extended by as much as five times when showing video) at a normal viewing brightness (200 cd/m2). At 1000 cd/m2 -- the standard test luminance used in the industry -- the DuPont materials have lifetimes (T50) of 14,000 hours for blue with CIE 1931 color coordinates of (0.14, 0.16), 230,000 hours for green with color coordinates of (0.29, 0.65), and 46,000 hours for red with color coordinates of (0.66, 0.34).

Ron Mertens from OLED-Info.com recently had the opportunity to interview Chyi-Shan Suen, director of sales & marketing of Vitex systems.

Headquartered in San Jose CA, Vitex is an IP-centric licensing, engineering service and material company in the business of thin-film barrier coatings and flexible substrates for the FPD market. Vitex's development of a thin-film moisture barrier technology continues to gain acceptance within the industry due to its demonstrated ability to meet the rigorous environmental requirements for thin-film encapsulation of bottom- and top-emission OLEDs. In addition, this technology can be applied to a wide range of organic semiconductor applications such as photovoltaics and batteries.

Q: First of all, thank you for accepting to do this interview session with us. Can you describe the Barix system?

The Barix Encapsulation™ is comprised of alternating layers of organic and inorganic films. The organic layer smooths and planarizes the display surface, while the inorganic is the real barrier. The total thickness of the coating is only about 3 microns or less. It is flexible, transparent and is applied at low temperature. The coating can be applied directly on top of an OLED display, eliminating the mechanical packaging components while providing the moisture and oxygen protection required by an OLED display.

DuPont announced a significant technology breakthrough in its OLED technology, taking a significant step toward commercialization of this next generation flat panel display offering. Using advanced materials, OLEDs produce low power, thin, high-performance flat panel displays. OLED panels are emissive, eliminating the need for backlights and simplifying display design compared to other display technologies, such as liquid crystal displays (LCDs).

DuPont has achieved lifetimes of the three primary colors each exceeding 10,000 hours of white lifetime (or 40,000 hours for a typical video) at the brightnesses required for a 200 nit display. With this development, DuPont has demonstrated that OLEDs can be manufactured at high yields and low total cost.

Plastic Logic announced today that it has developed the world's largest flexible organic active matrix display. The display consists of a flexible, high resolution, printed active-matrix backplane driving an electronic paper frontplane from US-based E Ink Corporation.

The display will be shown at the 12th International Displays Workshop in Takamatsu, Japan from December 6/9. Dr Seamus Burns, Plastic Logic's Group Leader for Displays, will give a presentation describing the new display in the Sunport Hall Takamatsu Main Hall on Wednesday 7 December 2005 at 09.50. The displays are 10" diagonal SVGA (600 by 800) with 100ppi resolution and 4 levels of greyscale. The thickness of the display when laminated with E-Ink Imaging Film(TM) is less than 0.4mm. The backplane substrate is made from low temperature PET supplied by DuPont Teijin Films which is more flexible and easier to handle than alternatives such as thin glass or steel foil.