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An electrophoretic ink for all-printed reflective electronic displays

Author

Listed:
  • Barrett Comiskey

    (Massachusetts Institute of Technology, The Media Laboratory)

  • J. D. Albert

    (Massachusetts Institute of Technology, The Media Laboratory)

  • Hidekazu Yoshizawa

    (Massachusetts Institute of Technology, The Media Laboratory)

  • Joseph Jacobson

    (Massachusetts Institute of Technology, The Media Laboratory)

Abstract

It has for many years been an ambition of researchers in display media to create a flexible low-cost system that is the electronic analogue of paper. In this context, microparticle-based displays1,2,3,4,5 have long intrigued researchers. Switchable contrast in such displays is achieved by the electromigration of highly scattering or absorbing microparticles (in the size range 0.1–5 μm), quite distinct from the molecular-scale properties that govern the behaviour of the more familiar liquid-crystal displays6. Microparticle-based displays possess intrinsic bistability, exhibit extremely low power d.c. field addressing and have demonstrated high contrast and reflectivity. These features, combined with a near-lambertian viewing characteristic, result in an ‘ink on paper’ look7. But such displays have to date suffered from short lifetimes and difficulty in manufacture. Here we report the synthesis of an electrophoretic ink based on the microencapsulation of an electrophoretic dispersion8. The use of a microencapsulated electrophoretic medium solves the lifetime issues and permits the fabrication of a bistable electronic display solely by means of printing. This system may satisfy the practical requirements of electronic paper.

Suggested Citation

  • Barrett Comiskey & J. D. Albert & Hidekazu Yoshizawa & Joseph Jacobson, 1998. "An electrophoretic ink for all-printed reflective electronic displays," Nature, Nature, vol. 394(6690), pages 253-255, July.
  • Handle: RePEc:nat:nature:v:394:y:1998:i:6690:d:10.1038_28349
    DOI: 10.1038/28349
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    Cited by:

    1. María Rodríguez Fernández & Eduardo Zalama Casanova & Ignacio González Alonso, 2015. "Review of Display Technologies Focusing on Power Consumption," Sustainability, MDPI, vol. 7(8), pages 1-22, August.

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