Patent ID: 9709867
Date: 2017-07-18
CPC Classifications: G02F

Claim:
1. A passive matrix display device, comprising: a set of pixel cells arranged in a matrix, wherein each of the pixel cells includes, wherein the coloring of each pixel cell is provided by a change in redox state of said electrochromic and electrochemically active organic polymer material of said first pixel layer, and the color of the third pixel layer remains unchanged during a color switching of the pixel, wherein said second pixel layer of each of said pixel cells is formed of a material including electrically conductive carbon, which in combination with the materials in the first and third pixel layers in all pixel cells provides a threshold voltage at least in response to a potential difference applied across said pixel cell, and wherein the potential difference is set so that a sum of potential differences distributed in a non-addressed cell by cross-talk from addressed pixel cells is lower than the threshold voltage of the pixel cell.