Help for LCD displays?

Discussion in 'Digital Photography' started by Rich, Dec 14, 2005.

  1. Rich

    Rich Guest

    Nano World: Clear, hard nano-based coating

    A transparent coating loaded with particles only nanometers or
    billionths of a meter in diameter is far harder than other
    conventional organic coatings on the market, for potential use in
    everything from iPods and cell phones to car windows and flexible
    video displays, experts told UPI's Nano World.

    Akron, Ohio-based Ecology Coatings has developed a new coating for
    polycarbonate plastics. Polycarbonate is extremely tough and naturally
    transparent and is one of the most widely used engineered materials in
    the world, finding its way into lightweight eyeglass lenses, safer
    cars, shatterproof windows, computer parts and hundreds of other
    products.

    "The hope is to replace glass with something lighter and more
    breakage-resistant," said Ecology Coatings Chief Chemist Sally Ramsey.

    While polycarbonate is very breakage-resistant, it is easily
    scratched, Ramsey explained. Polycarbonate is often given coatings to
    improve its scratch resistance, but these are not always very strong
    and can compromise the material's transparency, adversely affecting
    other aspects of a device's performance. For instance, scratched iPod
    and cell-phone screens can drain energy as users try to brighten them
    up in order to read them properly.

    In analyses of the new coating, New Berlin, Wis.-based coatings
    specialist company Tekra found it rated three to four levels harder
    than any conventional organic coating on the market today according to
    the Japanese Industry Standard, a rigorous test for coating hardness.
    This means it is "at least 50 percent harder," Ramsey said.

    "Ecology Coatings has developed a technology for polycarbonates that
    throws the door open wide on a whole new set of performance properties
    that benefit manufacturers and consumers," said Tekra Research and
    Development Manager Jason Wichmann.

    The key to the coating's strength and transparency are oxide
    nanoparticles roughly 50 nanometers wide. These hard particles help
    prevent abrasive edges and surfaces from penetrating and scratching
    the coating. At the same time, the nanoparticles are small enough to
    allow light to pass through undisturbed.

    "We are finding that in order to stay at the cutting edge of the new
    industrials, companies need to start looking at nanomaterials or risk
    quickly becoming dinosaurs," Wichmann said.

    Developing a technique in which a coating will stick onto a surface
    without inadvertently clouding it up was "the biggest challenge,"
    Ramsey said. The solution they came up with uses ultraviolet light to
    quickly cure the coating applied to the polycarbonate without etching
    the surface. This process contains no toxic solvents, water or other
    liquids.

    In addition to incorporating oxide nanoparticles into coatings, "we
    are also exploring the incorporation of other substances to deliver
    specialized properties. These basic clear coats are exciting, but they
    are just the beginning," Ramsey said.

    Copyright 2005 by United Press International




    This news is brought to you by PhysOrg.com
     
    Rich, Dec 14, 2005
    #1
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  2. Rich

    Paul Guest

    I am sure you are an intelligent guy, but maybe you should have condensed
    your post into a nanopost.


    "Rich" <> wrote in message
    news:...
    > Nano World: Clear, hard nano-based coating
    >
    > A transparent coating loaded with particles only nanometers or
    > billionths of a meter in diameter is far harder than other
    > conventional organic coatings on the market, for potential use in
    > everything from iPods and cell phones to car windows and flexible
    > video displays, experts told UPI's Nano World.
    >
    > Akron, Ohio-based Ecology Coatings has developed a new coating for
    > polycarbonate plastics. Polycarbonate is extremely tough and naturally
    > transparent and is one of the most widely used engineered materials in
    > the world, finding its way into lightweight eyeglass lenses, safer
    > cars, shatterproof windows, computer parts and hundreds of other
    > products.
    >
    > "The hope is to replace glass with something lighter and more
    > breakage-resistant," said Ecology Coatings Chief Chemist Sally Ramsey.
    >
    > While polycarbonate is very breakage-resistant, it is easily
    > scratched, Ramsey explained. Polycarbonate is often given coatings to
    > improve its scratch resistance, but these are not always very strong
    > and can compromise the material's transparency, adversely affecting
    > other aspects of a device's performance. For instance, scratched iPod
    > and cell-phone screens can drain energy as users try to brighten them
    > up in order to read them properly.
    >
    > In analyses of the new coating, New Berlin, Wis.-based coatings
    > specialist company Tekra found it rated three to four levels harder
    > than any conventional organic coating on the market today according to
    > the Japanese Industry Standard, a rigorous test for coating hardness.
    > This means it is "at least 50 percent harder," Ramsey said.
    >
    > "Ecology Coatings has developed a technology for polycarbonates that
    > throws the door open wide on a whole new set of performance properties
    > that benefit manufacturers and consumers," said Tekra Research and
    > Development Manager Jason Wichmann.
    >
    > The key to the coating's strength and transparency are oxide
    > nanoparticles roughly 50 nanometers wide. These hard particles help
    > prevent abrasive edges and surfaces from penetrating and scratching
    > the coating. At the same time, the nanoparticles are small enough to
    > allow light to pass through undisturbed.
    >
    > "We are finding that in order to stay at the cutting edge of the new
    > industrials, companies need to start looking at nanomaterials or risk
    > quickly becoming dinosaurs," Wichmann said.
    >
    > Developing a technique in which a coating will stick onto a surface
    > without inadvertently clouding it up was "the biggest challenge,"
    > Ramsey said. The solution they came up with uses ultraviolet light to
    > quickly cure the coating applied to the polycarbonate without etching
    > the surface. This process contains no toxic solvents, water or other
    > liquids.
    >
    > In addition to incorporating oxide nanoparticles into coatings, "we
    > are also exploring the incorporation of other substances to deliver
    > specialized properties. These basic clear coats are exciting, but they
    > are just the beginning," Ramsey said.
    >
    > Copyright 2005 by United Press International
    >
    >
    >
    >
    > This news is brought to you by PhysOrg.com
    >
     
    Paul, Dec 14, 2005
    #2
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