US 11,983,377 B2
Touch module
Hung-Wei Kuo, Taipei (TW); Tse-Ping Kuan, Taipei (TW); Ying-Yen Huang, Taipei (TW); and Wei-Chiang Huang, Taipei (TW)
Assigned to PRIMAX ELECTRONICS LTD., Taipei (TW)
Filed by Primax Electronics Ltd., Taipei (TW)
Filed on May 31, 2023, as Appl. No. 18/204,229.
Claims priority of provisional application 63/396,816, filed on Aug. 10, 2022.
Prior Publication US 2024/0053857 A1, Feb. 15, 2024
Int. Cl. G06F 3/046 (2006.01); G06F 3/041 (2006.01); G06F 3/047 (2006.01)
CPC G06F 3/046 (2013.01) [G06F 3/04164 (2019.05); G06F 3/047 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A touch module, comprising:
a base plate comprising a top side;
a magnet located at the top side of the base plate;
a touchpad located over the top side of the base plate, wherein the magnet is covered by the touchpad; and
a magnetic board coupled with the touchpad and aligned with the magnet, wherein the magnetic board comprises:
a first wiring layer located beside the magnet, and comprising a first sensing line, wherein the first sensing line is wound in a first direction, and the first sensing line comprises a first contacting terminal and a first conducting terminal;
a second wiring layer located over the first wiring layer, and comprising a second sensing line, wherein the second sensing line is wound in the first direction, and the second sensing line comprises a second contacting terminal and a second conducting terminal;
a third wiring layer located over the first wiring layer, and comprising a third sensing line, wherein the third sensing line is wound in the first direction, and the third sensing line comprises a third contacting terminal and a third conducting terminal; and
a fourth wiring layer located over the third wiring layer, and located near the touchpad, wherein the fourth wiring layer comprises a first communication part and a second communication part,
wherein the first wiring layer, the second wiring layer, the third wiring layer and the fourth wiring layer are in parallel with each other and stacked on each other, and the first wiring layer, the second wiring layer, the third wiring layer and the fourth wiring layer are aligned with the magnet,
wherein the first sensing line of the first wiring layer is electrically connected with the second sensing line of the second wiring layer through the first communication part of the fourth wiring layer, and the second sensing line of the second wiring layer is electrically connected with the third sensing line of the third wiring layer through the second communication part of the fourth wiring layer,
wherein the first sensing line, the second sensing line and the third sensing line sense a magnetic field of the magnet and generates a vibration.