公开(公告)号：US20170083152A1

公开(公告)日：2017-03-23

申请号：US14860364

申请日：2015-09-21

Applicant: Apple Inc.

Inventor： Alexandre GOUREVITCH ,  Albert LIN ,  Isaac CHAN ,  Martin Paul GRUNTHANER ,  Prathit BUGNAIT ,  Seyed Mohammad NAVIDPOUR ,  Sumant RANGANATHAN

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04106

Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface of a touch sensor panel is disclosed. Electrodes associated with a more linear signal profile can correlate to lower wobble error. In some examples, electrodes can be configured such that the signal profile associated with each electrode is spread to be wider, and thus, more linear. In some configurations, electrodes can include two or more bars extending along the length of the electrode with each bar electrically connected to one another at one or both ends. Bars can be of non-uniform width or spacing. Some configurations can include a “split bar,” which can divide a bar lengthwise in order to improve optical uniformity. In some examples, electrodes can include projections which can interleave with corresponding projections in adjacent electrodes.

公开(公告)号：US20200042120A1

公开(公告)日：2020-02-06

申请号：US16530955

申请日：2019-08-02

Applicant: Apple Inc.

Inventor： Ashray Vinayak GOGTE ,  Warren S. A. RIEUTORT-LOUIS ,  Alexandre GOUREVITCH ,  Christophe BLONDIN

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel includes drive electrodes and sense electrodes, wherein the drive electrodes and sense electrodes form touch nodes. In some examples, touch nodes include differently-sized drive and/or sense electrodes, and changes to the size or quantity of reference or floating electrodes disposed within the drive and/or sense electrodes are used to substantially balance the areas of the drive and/or sense electrodes in a given touch node.

公开(公告)号：US20200026393A1

公开(公告)日：2020-01-23

申请号：US16459314

申请日：2019-07-01

Applicant: Apple Inc.

Inventor： Alexandre GOUREVITCH ,  Christophe BLONDIN ,  Ashray Vinayak GOGTE ,  Xiaoqi ZHOU ,  Vipul CHAWLA ,  Robert Leo SHERIDAN

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a first layer including a plurality of drive lines including drive electrodes, wherein the drive lines are configured to be coupled to drive circuitry during touch sensing on the touch sensor panel. In some examples, the first layer includes a plurality of sense lines including sense electrodes, wherein the sense lines are configured to be coupled to sense circuitry during the touch sensing on the touch sensor panel. In some examples, the first layer includes a plurality of first shielding electrodes, wherein the first shielding electrodes are disposed between the drive electrodes and the sense electrodes. In some examples, the touch sensor panel comprises a second layer, different than the first layer, including one or more bridges electrically coupling at least two of the first shielding electrodes together.