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The article discusses the importance of ink technology to printed electronics. The author states that disposable-battery testers added into the product or packaging is considered one of the first widely used printed-electronics applications. These low-cost, interactive testers depend on conductive inks to form a resistive-heating and temperature-responsive inks to provide the display. Electronic paper is another display technology that benefits from printed electronics. Electronic paper has the capacity to reflect light like ordinary paper.

The article focuses on the newly developed electronic paper technology in the U.S. It has been predicted that the demonstration of electronic products indicates the E-paper technology's readiness in the market. The E-paper was made out of organic electronics which contains tiny balls of ink designed to respond to electric charges in the monitor of the computer and act like pixels. This new technology was developed by the Xerox Palo Alto Research Center which was first named as Gyricon. Recently, continuous developments and improvements were conducted on the E-paper in terms of its contrast ratios, resolutions and brightness levels.