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Hitachi Cooks Up Capacitive Display that Works with Styli

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Nov 17, 2010, 8:06 AM by Eric M. Zeman

Hitachi Displays recently announced that it has developed a new capacitive display that can be operated with a plastic stylus, gloved hand, or other non-conductive object. Capacitive displays differ from resistive displays in that they rely on the electric signals in our skin to register contact. Because objects such as styli don't have electric signals, they can't be used with capacitive displays. Resistive displays respond to physical pressure, which is why they work well with styli. Hitachi's new capacitive display uses a projection-type electrostatic touch panel that converts input from non-conductive materials into a capacitive signal. Hitachi says that the technology will allow people to use input devices other than their fingers, and it still supports multitouch. Hitachi didn't indicate if or when this new screen technology might be used by devices such as mobile phones.

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