公开(公告)号：US20230229275A1

公开(公告)日：2023-07-20

申请号：US18185968

申请日：2023-03-17

Applicant: Apple Inc.

Inventor： William Matthew Pender PAUL ,  Christoph H. KRAH ,  Bin HUANG ,  Stanley Bo-Ting WANG

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/0446

Abstract: In some examples, a touch screen can include touch electrodes that can function as drive (Tx) electrodes and sense (Rx) electrodes during a touch sensing operation of the electronic device. The drive electrodes can include +Tx electrodes and -Tx electrodes that can receive drive signals that can have the same amplitude and frequency and opposite phases, for example. In some examples, the surface areas of the +Tx electrodes and the -Tx electrodes can be the same and the distances of the +Tx electrodes and -Tx electrodes from the Rx electrodes can be different. In some examples, the total charge coupled to a proximate or touching object can be zero, which can mitigate problems associated with ungrounded or poorly grounded objects in contact with the touch screen.

公开(公告)号：US20230094533A1

公开(公告)日：2023-03-30

申请号：US17933820

申请日：2022-09-20

Applicant: Apple Inc.

Inventor： Christoph H. KRAH ,  Bin HUANG ,  Stanley B. WANG

IPC: G06F3/041 ,  G09G3/32 ,  G06F3/042 ,  G06F3/044 ,  H01L27/15

Abstract: An electronic device can include integrated micro circuitry configurable for optical sensing and touch and/or proximity sensing. An integrated touch screen can include light emitting diodes or organic light emitting diodes and chiplets. In some examples, the LEDs/OLEDs and chiplets can be disposed in a visible area of the integrated touch screen. In some examples, some or all of the chiplets can be disposed outside of the visible area of the integrated touch screen. In some examples, the chiplets can include display driving circuitry and touch sensing circuitry, and can optionally perform optical sensing using the touch sensing circuitry. In some examples, the chiplets can include separate touch chiplets configured to perform touch sensing (and/or optical sensing) and display chiplets configured to perform display functionality (and optionally provide some switching functionality).

公开(公告)号：US20220057897A1

公开(公告)日：2022-02-24

申请号：US16998456

申请日：2020-08-20

Applicant: Apple Inc.

Inventor： William Matthew Pender PAUL ,  Christoph H. KRAH ,  Bin HUANG ,  Stanley Bo-Ting WANG

IPC: G06F3/044 ,  G06F3/041

Abstract: In some examples, a touch screen can include touch electrodes that can function as drive (Tx) electrodes and sense (Rx) electrodes during a touch sensing operation of the electronic device. The drive electrodes can include +Tx electrodes and −Tx electrodes that can receive drive signals that can have the same amplitude and frequency and opposite phases, for example. In some examples, the surface areas of the +Tx electrodes and the −Tx electrodes can be the same and the distances of the +Tx electrodes and −Tx electrodes from the Rx electrodes can be different. In some examples, the total charge coupled to a proximate or touching object can be zero, which can mitigate problems associated with ungrounded or poorly grounded objects in contact with the touch screen.