US 11,747,944 B2
Touch sensing device
Naoki Shiga, Yao (JP); and Takeshi Isoda, Yao (JP)
Assigned to HOSIDEN CORPORATION, Yao (JP)
Filed by HOSIDEN CORPORATION, Yao (JP)
Filed on Sep. 7, 2021, as Appl. No. 17/467,802.
Claims priority of application No. 2020-153687 (JP), filed on Sep. 14, 2020.
Prior Publication US 2022/0083171 A1, Mar. 17, 2022
Int. Cl. G06F 3/044 (2006.01); B32B 1/00 (2006.01); B32B 5/18 (2006.01); B32B 27/06 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0443 (2019.05) [B32B 1/00 (2013.01); B32B 5/18 (2013.01); B32B 27/065 (2013.01); G06F 3/0445 (2019.05); B32B 2266/06 (2013.01); B32B 2266/08 (2013.01); B32B 2307/51 (2013.01); B32B 2307/7265 (2013.01); B32B 2457/208 (2013.01); G06F 3/0416 (2013.01); G06F 2203/04107 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A touch sensing device comprising:
a sensor being a capacitive, resistive, or optical touch sensor, the sensor being configured to detect a detection target approaching the sensor from one side in a first direction and including at least one first electrode and at least one second electrode, the at least one first electrode being configured such that signals of the or each first electrode change in accordance with a change in capacitance between the or each first electrode and the or each second electrode, the change being caused by an approach of the detection target from the one side in the first direction, the first direction being a thickness direction of the sensor; and
a water shielding layer being composed of a waterproof elastic substance, wherein
the water shielding layer is substantially as large as, or larger than, the sensor in projected area in a plan view of the one side in the first direction, larger than the at least one first electrode in projected area in the plan view of the one side in the first direction, and larger than the at least one second electrode in projected area in the plan view of the one side in the first direction, and
the water shielding layer is disposed on the one side in the first direction relative to the sensor, covers substantially the entire sensor from the one side in the first direction, and entirely covers the at least one second electrode and the at least one second electrode from the one side in the first direction.