I apologize if this belongs in the Display section, but I wondered about whether Arduino LCD screens can do a couple things.
1) Is the voltage across individual cells of the LCD screen programable so that the voltage across adjacent cells could be a range of numbers instead of an "on" voltage or 0 volts? Or is the "on" voltage the only programable voltage?
2) It seems like the green plastic behind the actual LCD screen contains electronics necessary for the LCD screen's function. Is there a way to expose the back of the LCD screen (remove the backlight and components other than the electrodes and liquid crystals) and still have the electronics working so that a voltage can be applied across the crystals? For example, I know this can be done with a computer LCD screen as the necessary components to apply voltage across the individual cells are located on a strip at the bottom of the screen.