LCD screen works from touch? Answered
I was taking apart a small department store card reader and as i was doing so i noticed that the LCD screen would kinda work from my fingers touching it. Some parts of numbers and indicators glowed as I ran my fingers across it. Is this from static electricity is my hands? Or just residual power in the display. All wires were removed from it so no capacitors to power it or anything. I did notice that the silicon-rubber-carbon? thing on the top and bottom of it were attached. Can someone with a knowledge of how these displays work please explain this phenomenon.