[xt00]

Very cool. The basic principle is that a conductive wire is coated in EL material. Those wires run one direction in the weave of the matrix -- lets call them columns. And then the other direction is another wire that is relatively flat that contacts against the EL material and lays nicely flat against the EL coated wire. The second set of wires lets call those rows. Since the rows are fairly transparent, when you apply a voltage between the column and row you form a voltage across the EL material and it lights up in that particular row / column intersection. That's how you address each pixel. The transparent electrodes are polyurethane ionic gel fibers that use a ionic material called EMIM-TFSI apparently.

[jfengel]

Do you get cross-talk?

That is, if you want to light up E3 and G8, and so you activate rows E and G and columns 3 and 8, do you also get E8 and G3 illuminated?