06118426 is referenced by 479 patents and cites 27 patents.

A process for creating an electronically addressable display includes multiple printing operations, similar to a multi-color process in conventional screen printing. In some of the process steps, electrically non-active inks are printed onto areas of the receiving substrate, and in other steps, electrically active inks are printed onto different areas of the substrate. The printed display can be used in a variety of applications. This display can be used as an indicator by changing state of the display after a certain time has elapsed, or when a certain pressure, thermal, radiative, moisture, acoustic, inclination, pH, or other threshold is passed. In one embodiment, the display is incorporated into a battery indicator. A sticker display is described. The sticker is adhesive backed and may then be applied to a surface to create a functional information display unit. This invention also features a display that is both powered and controlled using radio frequencies. It describes a complete system for controlling, addressing, and powering a display. The system includes an antenna or antennae, passive charging circuitry, and active control system, a display, and an energy storage unit. There is also a separate transmitter that provides the remote power for the display. The system is meant to be used anywhere it is useful to provide intermittent updates of information such as in a store, on a highway, or in an airport. A tile-based display allowing a modular system for large area display is created using a printable display material.

Title
Transducers and indicators having printed displays
Application Number
935800
Publication Number
6118426
Application Date
August 27, 1998
Publication Date
September 12, 2000
Inventor
Joseph M Jacobson
Newton Centre
MA, US
Barrett Comiskey
Cambridge
MA, US
Jonathan D Albert
Cambridge
MA, US
Agent
Testa Hurwitz & Thibeault
Assignee
E Ink Corporation
MA, US
IPC
G09G 3/34
View Original Source