ArcelorMittal and Novaled Engaged in Joint OLED-Development



    ArcelorMittal, the world's largest quality steel maker, and
    Novaled, OLED (Organic Light Emitting Diode) technology and material
    provider, have joined forces for a new OLED project. The partners are
    developing top-emitting OLEDs on flexible substrates for signage and
    lighting purposes since 2006.

    By using ArcelorMittal's steel plates as substrates, remarkable
    properties for bendable OLED applications can be achieved. Metallic
    substrates offer several advantages. Compared to standard glass-sheets
    they are more robust and durable and commonly produced by roll-to-roll
    process. This production method can be adapted to a subsequent inline
    process for OLED-deposition enabling high through-put manufacturing
    with low tact time. In this collaboration Novaled contributes both its
    broad technical experience with respect to highly efficient and stable
    OLED device architectures as well as its material know-how for doped
    transport layers.

    "We are always looking for ways to innovate and develop new
    application fields that add value to our steel products. We consider
    OLEDs to be very promising" says Michel Beguin, General Manager of
    ArcelorMittal's Industry Research Centre. "The Novaled technology
    gives us the advantage of an efficient top inverted structure well
    adapted to our metal substrate".

    "RGB OLEDs have been processed directly on classical steel plates.
    The striking results showed that the Novaled technology enables
    standard steel foil acting as reflective bottom electrode" adds Jan
    Blochwitz-Nimoth, CTO of Novaled. "We are very pleased to support
    ArcelorMittal in its OLED developments on metal plates".

    About OLEDs

    OLEDs, unlike normal (inorganic) LEDs, incorporate organic
    materials in thin layers generating light emission when electrical
    power is applied. In contrast to LEDs, they are rather large-area
    sources with low brightness that emit diffuse light in any colour.
    They can be easily structured to show patterns of colour or
    homogeneous white light. Currently OLEDs are mainly applied in small
    display applications, e.g. mobile telephones, MP3 players or personal
    digital assistants (PDAs). In the future, thanks to OLEDs' diffuse
    emission character and slim/lightweight form, it will be easier for
    people to create an adaptable lighting environment and to feel
    comfortable in any mood. By combining colour with shape, organic LEDs
    will also create a new way of decorating and personalizing people's
    surroundings with light. OLEDs offer the potential to become even more
    efficient as energy-saving bulbs. Once efficient OLEDs are available
    at mass production costs, they can be used for a multitude of
    applications in lighting.

    About ArcelorMittal Liege Research Centre

    ArcelorMittal Liege Research Centre is a unit of the ArcelorMittal
    Group specializing in the research and development of products and
    steel solutions dedicated to the Industry market and in particular in
    Construction. Located in Sart-Tilman University Park, ArcelorMittal
    Liege Research Centre employs 100 Research Engineers and Technicians.
    This center develops new products and applications based on the use of
    new coatings (organic, vacuum). Energy Management is considered as a
    major concern.

    About ArcelorMittal

    ArcelorMittal is the world's number one steel company, with
    320,000 employees in more than 60 countries. It has led the
    consolidation of the world steel industry and today ranks as the only
    truly global steelmaker wit an industrial presence in 27 countries.

    ArcelorMittal is the leader in all major global markets, including
    automotive, construction, household appliances and packaging. The
    Group leads in R&D and technology, holds sizeable captive supplies of
    raw materials and outstanding distribution networks.

    Its industrial presence in Europe, Asia, Africa and America give
    the Group exposure to all the key steel markets, from emerging to
    mature. ArcelorMittal will be looking to develop positions in the
    high-growth Chinese and Indian markets.

    ArcelorMittal key pro forma financials for 2006 show combined
    revenues of USD 88.6 billions. Its production was equivalent to around
    10 per cent of world steel output.

    ArcelorMittal is listed on the stock exchanges of New York (MT),
    Amsterdam (MT), Paris (MTP), Brussels (MTBL), Luxembourg (MT) and on
    the Spanish stock exchanges of Barcelona, Bilbao, Madrid (MTS) and
    Valencia.

    www.arcelormittal.com

    About Novaled

    Novaled AG is engaged in the research, development and
    commercialization of organic light-emitting diode (OLED) technologies
    and proprietary materials. The Company is a spin-off of the Dresden
    University and the Fraunhofer-Gesellschaft. Main investors are Credit
    Agricole Private Equity, TechnoStart, TechFund Capital Europe and CDC
    Entreprises Innovation.

    Founded in 2001, Novaled experienced a rapid growth maturing into
    a world-class company. Novaled commercializes its Novaled PIN OLED(TM)
    technology along with its proprietary OLED materials to display makers
    and lighting companies. The company has a strong IP position in OLED
    technology based on more than 300 patents granted or pending.
    www.novaled.com