Electrical Bistable Devices Using Organic Materials 73 3. Organic Bistable Materials and DevelopmentTrends In organic electrical materials having certainchemical structure, bistability is observed in which twostable resistance values exist for a single appliedvoltage value.Figure 2 shows an example of thosecharacteristics. forexample, and applying a bias voltage at both ends tomaintain the on/off-state of the bistable device, lightemission can be made continuous even with a struc-ture similar to that of the passive matrix method. Theon/off-state is switched by applying control pulsevoltages that correspond to each switching voltage.