Patent ID: 9148730
Filing Date: 2015-09-29
Classification: H04R,Y10T

Abstract:
1. An electrostatic speaker comprising: an oscillator formed of a sheet-like member and having conductivity and flexibility; a first cushioning material layer and a second cushioning material layer, each formed of a sheet-like member and having insulation property, air permeability and elasticity; a first electrode and a second electrode, each formed of a sheet-like member and having conductivity, air permeability and flexibility; and a first cover layer and a second cover layer, each formed of a sheet-like member and having insulation property, wherein the oscillator is disposed between the first cushioning material layer and the second cushioning material layer, the first cushioning material layer is disposed between the oscillator and the first electrode, and the second cushioning material layer is disposed between the oscillator and the second electrode, the first electrode is disposed between the first cushioning material layer and the first cover layer, and the second electrode is disposed between the second cushioning material layer and the second cover layer, a laminated body includes a plurality of layers including at least the first cover layer and the second cover layer, the laminated body includes: a first region including an outer edge end of the laminated body; and a second region inside the first region, in the second region, two adjacent layers of the plurality of layers included in the laminated body are fixed to each other, and strength at the outer edge end in the first region is higher than strength in the second region.