公开(公告)号：US11720211B2

公开(公告)日：2023-08-08

申请号：US17776156

申请日：2020-10-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuji Nonami ,  Hirofumi Yamada ,  Tetsuya Minamide ,  Shigeyuki Fujii

IPC: G06F3/044

CPC classification number: G06F3/044

Abstract: A touch sensor includes a substrate with a first surface, and a plurality of first electrodes on the first surface of the substrate in a view area. The first surface of the substrate includes a plurality of bottomed grooves extending linearly. Each first electrode includes a plurality of fine lines including a conductive material buried in one of the grooves. Each fine line includes a bottomed recess recessed from the first surface toward the bottom surface of each groove.