公开(公告)号：US20230008160A1

公开(公告)日：2023-01-12

申请号：US17858863

申请日：2022-07-06

Applicant: Futaba Corporation

Inventor： Koji TAJIMA ,  Hiroaki EGUCHI ,  Tomoya SATO

IPC: G06F3/041 ,  G06F3/044

Abstract: An objective of the present invention is to provide a structure of a touch panel which may be efficiently produced while avoiding degradation of visibility. A touch panel device includes: a piezo film having a piezoelectric effect; a touch detecting section disposed at a first face of two faces of the piezo film, the two faces extending orthogonally to a thickness direction of the piezo film, wherein the touch detecting section has an electrode structure which is patterned for enabling detection of a touch position; an insulating layer formed on a second face of the two faces of the piezo film by means of a layer application process, the second face being opposite to the first face; and a conductive layer formed on the insulating layer.

公开(公告)号：US20230010682A1

公开(公告)日：2023-01-12

申请号：US17858874

申请日：2022-07-06

Applicant: Futaba Corporation

Inventor： Koji TAJIMA ,  Hiroaki EGUCHI ,  Tomoya SATO

IPC: G06F3/041 ,  H01L41/113

Abstract: An objective of the present invention is to provide a structure of a touch panel which may avoid degradation of visibility. A touch panel device includes a piezo film having a piezoelectric effect, a touch detecting section disposed at a first face of two faces of the piezo film, the two faces extending orthogonally to a thickness direction of the piezo film, wherein the touch detecting section has an electrode structure which is patterned for enabling detection of a touch position, a conductive layer formed at a second face of the two faces of the piezo film, the second face being opposite to the first face, and a coating layer disposed on the first face of the piezo film, wherein the first face is adhered to the touch detecting section via the coating layer by means of an adhesive.