US 11,816,298 B2
Single layer capacitive imaging sensors
David Hoch, San Jose, CA (US)
Assigned to Synaptics Incorporated, San Jose, CA (US)
Filed by Synaptics Incorporated, San Jose, CA (US)
Filed on Aug. 14, 2020, as Appl. No. 16/994,520.
Prior Publication US 2022/0050551 A1, Feb. 17, 2022
Int. Cl. G06F 3/044 (2006.01)
CPC G06F 3/0443 (2019.05) [G06F 3/0448 (2019.05); G06F 2203/04112 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A capacitive sensing layer of an input device, the capacitive sensing layer comprising:
a substantially rectangular sensor pattern extending in a horizontal direction and in a vertical direction, the rectangular sensor pattern comprising:
a first plurality of electrodes;
wherein each of the first plurality of electrodes comprises a strip extending in the vertical direction,
wherein the first plurality of electrodes is separated in the horizontal direction by a first plurality of gaps, and
wherein the first plurality of electrodes comprises sensing elements with multiple horizontal lengths and vertical extensions;
a second plurality of electrodes;
wherein each of the second plurality of electrodes comprises a substantially rectangular pad, disposed adjacent to one of the first plurality of electrodes, in one of the first plurality of gaps,
wherein two of the second plurality of electrodes are disposed horizontally in each of the first plurality of gaps in the horizontal direction,
wherein the two of the second plurality of electrodes in each of the first plurality of gaps are separated by a second plurality of gaps,
wherein a subset of the second plurality of electrodes is disposed in each of the first plurality of gaps, in the vertical direction, and
wherein the second plurality of electrodes are separated by a third plurality of gaps in the horizontal direction and into which are disposed the first plurality of electrodes; and
a plurality of routing traces of the second plurality of electrodes disposed in the second plurality of gaps,
wherein the first and second plurality of electrodes and the plurality of routing traces are disposed in a same layer of the substantially rectangular sensor pattern,
wherein an electrode of the second plurality of electrodes comprises a height in the vertical direction that is an integer multiple of a length in the horizontal direction of the electrode,
wherein the first plurality of electrodes and the second plurality of electrodes establishes a sensing grid, and
wherein the sensing grid is rotated with respect to the horizontal direction and the vertical direction.