Industrial Technology Research Institute

Eastman-kodak Company

Domenic Maiola

Robert G Capurso

David M Johnson

Stanley W Stephenson

Theodore K Ricks

James M Papa

A system and method for writing bistable media with a writehead is described. The media has two or more discrete write areas, each area defined by at least one electrical contact, and the media further has at least one alignment feature positioned with regard to one or more discrete write area. The writehead has corresponding alignment features and electrical conductors to the alignment features and electrical contacts of the media.

Indexing writehead for bistable media

A transaction card system includes a transaction card with a display tag for displaying short term information, the character display having optical states that are stable without power and viewable from one side of the display tag and an array of electrical contacts for electrically addressing the character display from the other side of the tag, a contact window through which the contacts are accessible, machine readable data on the card, and a long term information printed on the transaction card; a transaction card writer having a reader for reading the machine readable data and having means for updating the short term information displayed on the transaction card; and a central computer connected to the transaction card writer having a data base and a central processor for receiving the information read by the magnetic card reader and generating display commands for the transaction card writer.

Card with embedded bistable display having short and long term information

A transaction card system includes a transaction cared with a display tag for displaying short term information, the character display having optical states that are stable without power and viewable from one side of the display tag and an array of electrical contacts for electrically addressing the character display from the other side of the tag, a contact window through which the contacts are accessible, machine readable data on the card, and long term information printed on the transaction card; a transaction card writer having a reader for reading the machine readable data and having means for updating the short term information displayed on the transaction card; and a central computer connected to the transaction card writer having a data base and a central processor for receiving the information read by the magnetic card reader and generating display commands for the transaction card writer.

A system and method for writing bistable media is described, wherein the media has at least one through hole that interacts with at least one protrusion on a writer to align the media with the writer.

Writing device for bistable material with improved flexible material alignment features

Apparatus for changing the display state of a bistable liquid crystal display on a display tag having a plurality of electrical contact pads connected to a corresponding plurality of electrodes in the liquid crystal display includes a body defining a slot for receiving and locating the display tag with respect to the body; a plurality of contact pins located in the body and being mounted for movement into the slot to contact the electrical contact pads of a display tag located in the slot; drive electronics electrically connected to the contact pins for receiving display command signals from an external source and for applying electrical drive signals to the electrodes of the display when the contact pins are in contact with the electrical contact pads; and operator control means for moving the contact pins into electrical contact with the electrical contact pads and causing the drive electronics to apply the electrical drive signals to the contact pins.

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Rochester, NY, United States of America

Domenic Maiola