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Mark Peters : July 29th 2005 - 09:00 CET

OLED Technology licensed to Orion Korea

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KodakOLED Technology licensed to Orion Korea : Eastman Kodak Company is licensing its organic light emitting diode (OLED) display technology to Orion OLED Co., Ltd. of Korea. This brings to more than 15 the number of display manufacturers licensing Kodak's passive matrix organic display technology. "We believe OLED display's brightness and readability will add value to the products we make," said Jae Hwal Yoo, chief executive officer of Orion OLED. "Kodak's experience and leadership in OLED materials and displays were important considerations in our decision to license its technology." Orion OLED manufactures OLED panels and module displays for a variety of consumer products, including digital cameras, cellular phones and MP3 players.
OLED Technology licensed to Orion KoreaOLED display technology
"Orion OLED is the latest manufacturer to explore the potential for Kodak display technology, and we value their decision to license our technology," said Mary Jane Hellyar, president, Display and Components Group and senior vice president, Eastman Kodak Company. "Orion OLED joins the ranks of producers taking advantage of OLED technology to enhance the benefits of display quality in a variety of applications, from simple sub-displays in cell phones to full color panels in portable media/communication devices."

Sharp images and viewable from almost any angle
Organic solid-state displays offer bright, sharp images that are viewable from almost any angle. OLED displays comprise thin films of organic materials that emit light when stimulated with an electrical charge. Unlike conventional liquid crystal displays, OLED displays do not require a backlight. Benefits over conventional technologies include extended color gamut, higher contrast, wider viewing angle for superb readability in most lighting conditions, faster response time to support crisp streaming video, and thinner design for better ergonomics. These benefits provide direct advantages for a variety of applications such as digital cameras, portable media players, mobile phones, PDAs and other devices. The royalty-bearing license to Orion OLED covers use of passive matrix OLED modules in a variety of flat panel display applications. The agreement also gives Orion OLED the opportunity to purchase Kodak's patented OLED materials for use in manufacturing displays.

About Orion OLED Co., Ltd.
Established in 1965 as part of Orion Electric Co., Ltd., the first company to introduce cathode-ray tube technology in Korea, Orion OLED provides cutting-edge OLED technology to world-class cellular phone manufacturers and MP3 player makers. Orion OLED is focusing on full color OLED modules that improve the value of their clients' products. As a result, customers have rewarded Orion OLED with sustainable long-term partnerships. With the accumulated know-how in flat panel businesses, such as Plasma Display Panels and Field Emission Display, Orion OLED offers customers high performance OLEDs and superior quality services to insure customer satisfaction.

Learn about OLED
Kodak first discovered organic materials that glowed in response to electrical currents in the late 1970s. Since then, Kodak has set industry benchmarks with patented discoveries and OLED technology. Kodak's materials discovery research addresses molecular design and synthesis of organic materials for their chemical and physical properties. Computational analysis is used to model and predict the molecules' behavior. Physical chemistry expertise helps to understand how chemicals interact and how changes in their properties affect their behavior. Finally, materials analysis determines what is happening when molecules interact.

Color improvements using fluorescent dyes
In the late 1970s, Eastman Kodak Company scientist Dr. Ching Tang discovered that sending an electrical current through a carbon compound caused these materials to glow. Dr. Tang and Steven Van Slyke continued research in this vein. In 1987, they reported OLED materials that became the foundation for OLED displays produced today. The first color "discovered" in this early OLED research was green. Kodak has since improved the purity and brightness of color. As early as 1989, the Kodak research team demonstrated color improvements using fluorescent dyes, or dopants, to boost the efficiency and control of color output. Until now, display technology has presented only a fraction of what can be captured digitally. Gauging OLED color performance in terms of hue, chroma and lightness reveals the materials' advantages in showing bright, vibrant images with strong color fidelity.

What is AM OLED - Active Matrix?
Active matrix (AM) OLED displays stack cathode, organic, and anode layers on top of another layer - or substrate - that contains circuitry. The pixels are defined by the deposition of the organic material in a continuous, discrete "dot" pattern. Each pixel is activated directly: A corresponding circuit delivers voltage to the cathode and anode materials, stimulating the middle organic layer. AM OLED pixels turn on and off more than three times faster than the speed of conventional motion picture film - making these displays ideal for fluid, full-motion video. The substrate - low-temperature polysilicon (LTPS) technology - transmits electrical current extremely efficiently, and its integrated circuitry cuts down AM OLED displays' weight and cost, too.

What is PM OLED - Passive Matrix
Passive matrix (PM) OLED displays stack layers in a linear pattern, much like a grid, with "columns" of organic and cathode materials superimposed on "rows" of anode material. Each intersection or pixel contains all three substances. External circuitry controls electrical current passing through the anode "rows" and cathode "columns," stimulating the organic layer within each pixel. As pixels turn on and off in sequence, pictures form on the screen. PM OLED displays’ function and configuration are well-suited for text and icon displays in dashboard and audio equipment. Comparable to semiconductors in design, PM OLED displays are easily, cost-effectively manufactured with today’s production techniques.

OLED materials
Kodak's OLED materials make up full-color displays that surpass even LCDs in brilliance and color. And Kodak has continually improved color purity and brightness since its scientists first discovered OLED materials. Today, Kodak's exclusive color systems, dopants, and other materials are crucial ingredients in industry-leading devices for many applications.

- Rich color saturation
- Excellent luminous efficiency
- Long lifetime
- Excellent drive voltage (power) efficiency
- Certified, device-tested "EL" grade
- Noteworthy color gamut in full-color OLED systems
- Third-generation KODAK OLED materials.

OLED Production
OLED production techniques are evolving to minimize facilities requirements and take advantage of conventional technology and processes. Kodak provides technology expertise, services and materials to help licensing partners begin manufacturing operations. Precision material deposition is crucial to superior displays. Kodak’s advances in deposition techniques and equipment continue to bring more control and efficiency to manufacturing - including the number of substrates that can be processed. And OLED screens are easy to integrate into a wide range of devices. Today, active OLED displays are manufactured using the same TFT process used to build circuitry on the glass substrate.

Active OLED Display Production
Red, blue and green materials can be arranged in triads for each pixel through techniques such as precision shadow masking. This method blocks areas of the substrate surface for exact deposition and registration without gaps or overlap in color areas. Full-color effects also can be produced using a white emitting layer. A color filter array made through photolithographic techniques is inserted between the anode and substrate layers to produce red, blue and green effects.

About Eastman Kodak
Kodak is the leader in helping people take, share, print and view images - for memories, for information, for entertainment. With sales of $13.5 billion in 2004, the company is committed to a digitally oriented growth strategy focused on the following businesses: Health - supplying the medical and dental industries with traditional and digital imaging-information products and services, as well healthcare IT solutions and services; Graphic Communications - offering on-demand color and black and white printing, wide-format inkjet printing, high-speed, high-volume continuous inkjet printing, as well as document scanning, archiving and multi-vendor IT services; Digital & Film Imaging Systems - providing consumers, professionals and cinematographers with digital and traditional products and services; and Display & Components - which designs and manufactures state-of-the-art organic light-emitting diode displays as well as other specialty materials, and delivers imaging sensors to original equipment manufacturers.

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