US 12,443,307 B2
Touch sensor
Hiromitsu Niwa, Gifu Ken (JP); Takafumi Adachi, Gifu Ken (JP); and Mitsuru Satou, Kanagawa Ken (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 18/834,027
Filed by Panasonic Intellectual Property Management Co., Ltd., Kadoma (JP)
PCT Filed Jan. 23, 2023, PCT No. PCT/JP2023/001855
§ 371(c)(1), (2) Date Jul. 29, 2024,
PCT Pub. No. WO2023/145673, PCT Pub. Date Aug. 3, 2023.
Claims priority of application No. 2022-013151 (JP), filed on Jan. 31, 2022.
Prior Publication US 2025/0147617 A1, May 8, 2025
Int. Cl. G06F 3/041 (2006.01); H05K 1/18 (2006.01)
CPC G06F 3/04164 (2019.05) [H05K 1/189 (2013.01); G06F 2203/04102 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A touch sensor, comprising:
a sensor board; and
a flexible wiring board connected to the sensor board, wherein
the flexible wiring board comprises:
an insulative and flexible insulating board;
a ground layer connectable to a ground potential, which is arranged on a first surface of the insulating board, at a position excluding a connection area between the sensor board and the insulating board; and
a first lightning arrester electrically connected to the ground layer, which is arranged on the first surface of the insulating board, wherein
the first lightning arrester extends from the ground layer toward a contour end of the insulating board, wherein
the first lightning arrester is configured such that one end thereof is positioned at the contour end of the insulating board,
wherein, the flexible wiring board further comprises a second lightning arrester,
the second lightning arrester comprises layers of electroconductive materials arranged in a part of a surface of the ground layer opposite to the insulating board, and
the second lightning arrester is arranged with an interval from the first lightning arrester, in a longitudinal direction of the connection area.