Patent ID: 9128547
Filing Date: 2015-09-08
Classification: G06F,H01L

Abstract:
1. A transparent piezoelectric sheet comprising: a quadrilateral-shaped transparent piezoelectric film including an organic polymer, the quadrilateral-shaped transparent piezoelectric film having four sides and entire main surfaces that are piezoelectric; a first transparent plate electrode layered on part of a first main surface, which is one side surface of the main surfaces of the transparent piezoelectric film; and a second transparent plate electrode layered on part of a second main surface, which is an opposite side surface from the first main surfaces of the transparent piezoelectric film, the transparent piezoelectric film has a non-covered portion, which is a part of the first main surface, not covered by the first transparent plate electrode, the non-covered portion is one of at least a part of the second transparent plate electrode being overlapped with at least a part of the non-covered portion as seen in a an view, as seen in the plan view, an overlap region being equal to or greater than 70% of an area of the main surfaces of the transparent piezoelectric film, the overlap region which is an area of a region of overlap between the first transparent plate electrode and the second transparent plate electrode, and the transparent piezoelectric sheet being used in a state that