Image enhancement with polymer grid triode arrays

Alan J. Heeger, David J. Heeger, John Langan, Yang Yang

Research output: Contribution to journalArticle


An array of polymer grid triodes connected by a common grid functions as a "plastic retina," providing local contrast gain control for image enhancement. This simple device, made from layers of conducting polymers, functions as an active resistive network that performs center-surround filtering. The polymer grid triode array with common grid is a continuous analog of the discrete approach of Mead, with a variety of fabrication advantages and significant savings in area within the unit cell of each pixel.

Original languageEnglish (US)
Pages (from-to)1642-1644
Number of pages3
Issue number5242
Publication statusPublished - Dec 8 1995


ASJC Scopus subject areas

  • General

Cite this

Heeger, A. J., Heeger, D. J., Langan, J., & Yang, Y. (1995). Image enhancement with polymer grid triode arrays. Science, 270(5242), 1642-1644.