| 摘要 |
PROBLEM TO BE SOLVED: To provide a driver of a bimorph piezoelectric element which allows for a large amount of displacement and a large generation force in the bimorph piezoelectric element, and to provide a portable terminal including the same, an acoustic generator, an acoustic generation device, and an electronic apparatus.SOLUTION: A driver of a bimorph piezoelectric element includes a bimorph piezoelectric element 1 having a laminate 15 of a plurality of piezoelectric layers 11 and a plurality of electrode layers 12, and consisting of a first region 13 located on one side in the lamination direction, and a second region 14 located on the other side in the lamination direction, and a drive circuit 17 for driving the bimorph piezoelectric element 1. A drive voltage is applied, respectively, to the first region 13 and second region 14, while offsetting a reverse potential. |
