US 11,994,761 B2
Ground feature in a capacitive touch system
Jon Bertrand, Taylorsville, UT (US); Paul Glad, Sandy, UT (US); and Douglas Steck, Riverton, UT (US)
Assigned to Cirque Corporation, Sandy, UT (US)
Filed by Cirque Corporation, Sandy, UT (US)
Filed on May 18, 2023, as Appl. No. 18/198,934.
Application 18/198,934 is a continuation of application No. 17/654,415, filed on Mar. 11, 2022, granted, now 11,719,971.
Prior Publication US 2023/0288743 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/1333 (2006.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G02F 1/133334 (2021.01) [G02F 1/13338 (2013.01); G06F 3/0412 (2013.01); G06F 3/0416 (2013.01); G06F 3/0446 (2019.05); G06F 2203/04107 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a touch sensor; the touch sensor having a first set of electrodes and a second set of electrodes that are electrically isolated from the first set of electrodes;
a shield layer positioned adjacent to the touch sensor;
the shield layer has a first section and a second section where the first section of the shield layer includes multiple openings defined in the thickness of the first section and the second section of the shield layer has a different electrical characteristic than the first section; and
a ground feature incorporated into the touch sensor;
a first region of the touch sensor is adjacent to an antenna configured to direct a radio frequency signal through the first region of the touch sensor;
wherein the first region of the touch sensor aligns with the first section of the shield layer;
wherein the ground feature is a ring that surrounds at least the first region of the touch sensor.