| abstract |
The invention discloses the board that a kind of font is scalable, including carrying reeded backboard, conductive liquid it is filled with in groove, stretch tight on the groove edge of groove and set dielectric elastomeric body thin film, dielectric elastomeric body thin film contacts towards the one side of groove with conductive liquid, scribbling nano line electrode on another side, conductive liquid is connected with power supply respectively with nano line electrode.The word on board of the present invention or picture can be made to produce corresponding dynamic effect, to reach the purpose highlighted by the size and change frequency changing driving voltage. |