Patent ID: 7973744

Claim:
A display device comprising: a substrate having a surface of a planar state; a first electrode provided on the surface of the substrate and having a surface of a planar states; a first controller having a first power source to apply a voltage to the first electrode; and a self-heat generation type organic actuator, an end side of which is fixed on the substrate, and provided on the first electrode, wherein the actuator includes a plate-like conductive organic material member on which a pair of second electrodes is provided to supply an electric power to the organic material member, and a second controller having a second power source to supply a voltage to the pair of second electrodes, and wherein (a) the actuator is assumed that a fixed portion at the end side of the actuator and other portion thereof are inflected about the end side, in an initial state, (b) a voltage is applied to the pair of second electrodes and a voltage applied to the first electrode is turned to a non-applied state so that the actuator is deformed from an inflected state to a planar state, (c) the voltage applied to the pair of second electrodes is turned to the non-applied state and the first electrode is turned to a voltage applied-state so that the actuator maintains the planar state, (d) the voltage applied to the pair of second electrodes is turned to the non-applied state and the first electrode is turned to a voltage applied-state so that the actuator maintains the planar state, (e) the voltage applied to the pair of second electrodes is then turned to the non-applied state and the first electrode is turned to the voltage non-applied state so that the actuator maintains continuously the planar state, (f) the voltage applied to the pair of second electrodes is turned to the applied-state and the first electrode is turned to the voltage non-applied state so that the actuator maintains continuously the planar state, (g) the voltage applied to the pair of second electrodes is turned to the non-applied state and the first electrode is turned to the voltage non-applied state so that the actuator is deformed from the planar state to the inflected state, and operations (b) to (g) are repeated so that the actuator can indicate two states of the planar state and inflected state.