公开(公告)号：US20250103163A1

公开(公告)日：2025-03-27

申请号：US18830448

申请日：2024-09-10

Applicant: Apple Inc.

Inventor： Karan S. JAIN ,  Nandita VENUGOPAL ,  Santosh POKHREL

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch sensor panel operable within small form factor devices utilizes a plurality of discrete column electrodes arranged in a plurality of columns, and a plurality of continuous row electrodes arranged in a plurality of rows. Each column is divided into a plurality of regions, with each region formed from a plurality of electrically connected discrete column electrodes within that column. A scan plan includes a series of mutual capacitance scans wherein discrete column electrode(s) in all regions in all columns are sequentially stimulated, and AC signals indicative of mutual capacitance at certain the continuous row electrode(s) is measured. The scan plan includes a series of projection self-capacitance scans, wherein AC signals indicative of self-capacitance at a plurality of continuous row electrodes is measured for all rows, and AC signals indicative of self-capacitance at the discrete column electrodes in each region of all columns is measured.

公开(公告)号：US20200012358A1

公开(公告)日：2020-01-09

申请号：US16029489

申请日：2018-07-06

Applicant: Apple Inc.

Inventor： Blake R. MARSHALL ,  Reza NASIRI MAHALATI ,  Wing Kong LOW ,  Izhar BENTOV ,  Ashwin Kumar ASOKA KUMAR SHENOI ,  Henry N. TSAO ,  Supratik DATTA ,  Wesley W. ZUBER ,  Nandita VENUGOPAL ,  Karan S. JAIN

IPC: G06F3/0354 ,  G06F3/044 ,  G06F3/038

Abstract: Touch-based input devices, such as a stylus, can receive tactile input from a user. The tactile input functions can be performed by a touch sensor, such as a capacitive sensing device. A touch sensor can be integrated into a stylus in a low profile form. Tactile input can be received at the user's natural grip location. Furthermore, the stylus can effectively distinguish between tactile inputs from a user and disregard sustained tactile inputs that are provided while the user simply holds the stylus at the user's natural grip location.

公开(公告)号：US20250103169A1

公开(公告)日：2025-03-27

申请号：US18892135

申请日：2024-09-20

Applicant: Apple Inc.

Inventor： Karan S. JAIN ,  Eric E. GEMNAY ,  Sung Yul CHU ,  Ming-Ling YEH ,  Abhilash GOYAL ,  Jigar M. PATEL

IPC: G06F3/044 ,  G06F3/041

Abstract: Disclosed herein is a touch sensor panel including a substrate, a plurality of conductive layers including a first conductive layer and a second conductive layer, a plurality of vias from the first conductive layer to the second conductive layer, and control circuitry mounted to a printed circuit. The control circuitry can include touch sensing circuitry. The first conductive layer can include a plurality of touch electrodes. The second conductive layer can be separated from the substrate by at least the first conductive layer and can include a bonding region with a plurality of bond pads for interconnection with the plurality of touch electrodes. The printed circuit can be separated from the substrate by at least the plurality of conductive layers and can be bonded to the plurality of bond pads by a conductive bonding material between the second conductive layer and the printed circuit.

公开(公告)号：US20240393909A1

公开(公告)日：2024-11-28

申请号：US18791964

申请日：2024-08-01

Applicant: Apple Inc.

Inventor： Karan S. JAIN ,  Santosh POKHREL

IPC: G06F3/044

Abstract: Touch electrode architectures for reducing the occurrence of negative pixels in mutual capacitance touch sensor panels that are caused by poorly grounded objects are disclosed. A touch electrode architecture can utilize mutual capacitance unit cells, each of which include a drive electrode, a sense electrode, and one or more ground bars. The one or more ground bars can provide an increased capacitive path to ground for a poorly grounded finger, which can result in a larger reduction in mutual capacitance between the drive and sense electrodes, improving touch detection. In addition, the increased capacitive coupling between the object and ground reduces the amount of charge that couples back onto nearby sense electrodes, which can reduce the negative pixel that can occur at those electrodes and reduce the number of touch detection errors. The one or more ground bars can be formed in the same layer as the drive electrode.

公开(公告)号：US20240094853A1

公开(公告)日：2024-03-21

申请号：US18446835

申请日：2023-08-09

Applicant: Apple Inc.

Inventor： Karan S. JAIN ,  Santosh POKHREL

IPC: G06F3/044

CPC classification number: G06F3/0443

Abstract: Touch electrode architectures for reducing the occurrence of negative pixels in mutual capacitance touch sensor panels that are caused by poorly grounded objects are disclosed. A touch electrode architecture can utilize mutual capacitance unit cells, each of which include a drive electrode, a sense electrode, and one or more ground bars. The one or more ground bars can provide an increased capacitive path to ground for a poorly grounded finger, which can result in a larger reduction in mutual capacitance between the drive and sense electrodes, improving touch detection. In addition, the increased capacitive coupling between the object and ground reduces the amount of charge that couples back onto nearby sense electrodes, which can reduce the negative pixel that can occur at those electrodes and reduce the number of touch detection errors. The one or more ground bars can be formed in the same layer as the drive electrode.