US 12,073,051 B2
Touch sensor panel with staggered touch electrodes
Emmanuelle J. Merced-Grafals, San Jose, CA (US); and Matthew D. Hollands, San Francisco, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Mar. 8, 2023, as Appl. No. 18/180,773.
Claims priority of provisional application 63/362,738, filed on Apr. 8, 2022.
Prior Publication US 2023/0325043 A1, Oct. 12, 2023
Int. Cl. G06F 3/044 (2006.01)
CPC G06F 3/0448 (2019.05) [G06F 3/0446 (2019.05)] 20 Claims
OG exemplary drawing
 
1. A touch sensor panel, comprising:
a plurality of touch electrodes in a two-dimensional array, the plurality of touch electrodes including a first touch electrode and a second touch electrode disposed along a first axis, and a third touch electrode offset along the second axis from the first touch electrode;
wherein the first touch electrode and the second touch electrode each include one or more first protrusions along a first side and one or more second protrusions along a second side, opposite the first side;
wherein the one or more first protrusions along the first side are offset along a second axis, orthogonal to the first axis, from the one or more second protrusions along the second side;
wherein the first touch electrode and the second touch electrode tessellate such that the one or more first protrusions along the first side of the first touch electrode interlock with the one or more second protrusions along the second side of the second touch electrode; and
wherein the first touch electrode is connected to a first routing trace extending, along the first axis, from the first touch electrode to first edge of the two-dimensional array, the first routing trace being parallel to a second routing trace extending, along the first axis, from the second touch electrode to the first edge of the two-dimensional array; and
wherein a third side of the third touch electrode disposed opposite a respective routing trace of a respective touch electrode disposed along the first axis with the first touch electrode and the second touch electrode; and
wherein a fourth side of the third touch electrode, opposite the third side of the third touch electrode, comprises an edge extension to a second edge of the two-dimensional array, different than the first edge.