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Epson Develops “First” Inkjet Equipment for Manufacturing Color Filters
DEC
2006 — Seiko Epson Corp has developed inkjet equipment for
manufacturing color filters compatible with 8th-generation large LCDs.
This equipment has been installed at Sharp Corp’s Kameyama Plant No. 2
and is in operation for production of color filters destined for
Sharp’s latest large-screen LCD TVs.The inkjet-based color filter
manufacturing technique grew out of research into industrial
applications for inkjet technology conducted by Epson over many years.
Through its participation in the Future Vision project to develop
next-generation displays, the company worked this research into a
method for manufacturing large-screen LCD TVs that has attracted
attention for its remarkable effectiveness in reducing both the
environmental impact and the cost of manufacturing. Epson will continue
to develop its inkjet-based manufacturing equipment business —
including color filter applications — to contribute to the widespread
introduction of next-generation manufacturing processes.Based on
original Micro Piezo head techniques accumulated in the course of its
inkjet printer business, the company has researched and developed new
technologies for applying inkjet methods to industrial processes. These
efforts have resulted in a range of applications including a method of
forming alignment layers for LCDs using inkjet technology — claimed to
be the world’s first industrial application of inkjet technology.
Manufacturing of color filters with inkjet methods is another result of
the R&D conducted by Epson’s LCD business over the last 10 years
with a view to commercialization of industrial inkjet applications.At
the same time, the company took part in the project led by Future
Vision to develop next-generation displays and looked at how its
original technologies could help to advance industrial processes. By
cooperating with Sharp Corp, which also took part in the project, the
company succeeded in developing the world’s first manufacturing
technology to produce color filters for large-screen LCD TVs using
inkjet methods.Compared to conventional color filter manufacturing
methods, this new technology achieves better color properties.
Moreover, it is an environmentally friendly next-generation
manufacturing technology that significantly reduces waste volumes. Amid
trends towards larger flat panel displays and lower prices, inkjet is
likely to become the mainstream method of manufacturing color filters.
More than 50% of color filter manufacturing for large-screen LCD TVs is
forecast to switch to inkjet methods within the next three years,
making this technology the de facto industry standard.
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