A resistive touch screen panel made with a Kodak transparent conductive film and featuring completely invisible conductive patterns was demonstrated for the first time today at the Printed Electronics USA 2011 Show.
The polymer-based 14" touch screen panel was fabricated by GSI Technologies, LLC, and features Kodak HCF-225 Film/ESTAR™ Base and Clevios™ PEDOT:PSS coating with a surface resistivity of 225 ohms/sq. It was built using conventional printing processes, including UV-cured and heat processed inks.
The demonstration represents a milestone for Eastman Kodak Company's Industrial Materials Group and Heraeus Precious Metals GmbH & Co. KG.
The two companies have been experimenting with a variety of films and formulations to create a touch screen that provides superior performance, flexibility, stability, transparency, neutral color and low haze - all at an economic price as a working alternative to Indium Tin Oxide (ITO).
"Kodak's high quality conductive films and large scale coating process capabilities, combined with Heraeus advanced technologies and patterning techniques, offers breakthrough capabilities for touch screens built for electronic devices, when compared with the sputtering required in the manufacture of ITO films," stated Mark Juba, General Manager, Industrial Materials Group, Eastman Kodak Company.
In a NanoMarkets 2011 "Transparent Conductor Markets Report," it is predicted that the overall market for transparent conductor technologies will reach $6.9 billion by 2016. The report said new technologies such as the one demonstrated today are expected to capture up to 20% of this market from ITO based systems.
In addition to the touch screen development, Kodak announced a next generation polyester film with extraordinarily low haze growth characteristics, as well as an expanded family of Kodak HCF films for a variety of electronic display applications.
When subjected to temperatures of up to 150º C, the uncoated Kodak ESTAR™ Polyester film showed a change in haze from 0.2% to 0.4%. The same film with an adhesion promoting primer on one side resulted in a change in haze from 0.4% to 0.5%.
In addition to the improved haze stability, the new film - an extension of the Kodak ESTAR™ (PET) film line - also features high clarity, optical-grade surface quality and shrinkage characteristics of 1% or less % in the machine and transverse directions.
It is seen as a possible replacement for flexible display processes involving ITO sputter deposition, and in vacuum forming where uniform high clarity and low shrinkage characteristics are required.
The expanded portfolio of Kodak HCF-150, 225, and 700 film bases - coupled with HCF-350 already on the market - feature comparable electrical resistivity, transmittance and environmental stability to ITO.
However, these films can be scaled for large area applications without a change in the resulting conductivity levels or chemical definitions. For more information visit http://www.kodak.com/go/img.
As the world's foremost imaging innovator, Kodak helps consumers, businesses, and creative professionals unleash the power of pictures and printing to enrich their lives and businesses. Kodak's Industrial Materials Group offers a portfolio of functional films that enable customers in the electronic, optical and related industrial markets bring tomorrow's ideas to market today. For more information, visit http://www.kodak.com/go/img.
Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company with 160 years of tradition. Our fields of competence include precious metals, materials and technologies; sensors; biomaterials; and medical products, as well as dental products, quartz glass, and specialty light sources. With product revenues of €4.1 billion and precious metals trading revenues of €17.9 billion, as well as more than 12,900 employees in over 120 subsidiaries worldwide, Heraeus holds a leading position in its global markets. Visit the Conductive Polymers Division of Heraeus at www.clevios.com