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    Strain sensing in foldable displays
    2.
    发明授权
    Strain sensing in foldable displays 有权

    公开(公告)号：US11488499B2

    公开(公告)日：2022-11-01

    申请号：US17085359

    申请日：2020-10-30

    Applicant: Synaptics Incorporated

    Inventor： Petr Shepelev ,  Takayuki Noto ,  Takashi Nose

    IPC: G09F9/30 ,  G01B7/30 ,  H01L41/113 ,  H01L51/00

    Abstract: A method and apparatus for sensing strain in a flexible electronic display. In some implementations, a display controller may be coupled to an electronic display panel. The display controller is configured to receive sensor signals from one or more piezoresistive sensors disposed in the electronic display panel, determine an amount of strain in the electronic display panel based on the received sensor signals, determine a bend angle of the electronic display panel based on the determined amount of strain, and update a configuration of the electronic display panel based at least in part on the determined bend angle. In some implementations, the electronic display panel may be an organic light-emitting diode (OLED) display panel. In some implementations, the electronic display panel may include a polycrystalline silicon (poly-Si) backplane disposed on a flexible substrate, where each of the piezoresistive sensors includes one or more strain gauges formed on the poly-Si backplane.

    DEVICE AND METHOD FOR CAPACITIVE SENSING
    3.
    发明申请
    DEVICE AND METHOD FOR CAPACITIVE SENSING 有权

    公开(公告)号：US20210389841A1

    公开(公告)日：2021-12-16

    申请号：US17407766

    申请日：2021-08-20

    Applicant: Synaptics Incorporated

    Inventor： Xueyong Yang ,  Tetsuo Tanemura ,  Nobukazu Tanaka ,  Takayuki Noto

    IPC: G06F3/041 ,  G06F3/044

    Abstract: A semiconductor device comprises driver circuitry, an analog-digital (AD) converter, and processing circuitry. The driver circuitry is configured to supply a drive signal to a sensor array in a sensing frame comprising 2N bursts, N being an integer of two or more. The mixer circuitry is configured to modulate a plurality of carrier waves with a plurality of sensing signals corresponding to capacitances of a plurality of sensing electrodes of the sensor array, respectively, to output a plurality of mixer outputs. A number of the plurality of sensing electrodes is 2N−1 or 2N. The AD converter is configured to perform AD conversion on a sum signal of the plurality of mixer outputs. The processing circuitry is configured to detect an object based on the output of the AD converter.

    Sensing system and semiconductor device
    4.
    发明授权
    Sensing system and semiconductor device 有权

    公开(公告)号：US10235000B2

    公开(公告)日：2019-03-19

    申请号：US15789103

    申请日：2017-10-20

    Applicant: Synaptics Incorporated

    Inventor： Nobukazu Tanaka ,  Takayuki Noto ,  Tetsuo Tanemura

    IPC: G06F3/044 ,  G06F3/041

    Abstract: A sensing system includes: a transmitter circuitry configured to transmit drive signals to N sensors, N being a positive integer; N receiver circuitries configured to receive in parallel N sense signals generated in response to the drive signals by N sensors, N being a positive integer; N modulation circuitries configured to modulate outputs of the N receiver circuitries; a mixer circuitry configured to mix outputs of the N modulation circuitries; an A/D converter circuitry configured to receive an output of the mixer circuitry; and a demodulation circuitry. The demodulation circuitry is configured to demodulate an output of the A/D converter circuitry to generate N digital sense values corresponding to the N sense signals.

    Device and method for proximity sensing on an input device
    7.
    发明授权
    Device and method for proximity sensing on an input device 有权

    公开(公告)号：US11209926B2

    公开(公告)日：2021-12-28

    申请号：US17142462

    申请日：2021-01-06

    Applicant: Synaptics Incorporated

    Inventor： Shinobu Nohtomi ,  Nobukazu Tanaka ,  Takayuki Noto

    IPC: G06F3/041 ,  H03K17/955 ,  G06F3/044 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/36

    Abstract: A processing system comprises a first source amplifier and an analog front end. The first source amplifier comprises a first input electrically connectable to a first sensor electrode of a display panel and configured to generate a first drive signal based on a first grayscale voltage corresponding to a first pixel data and generate a first comparison output signal based on a first sensing signal from the first sensor electrode and a reference voltage. The analog front end is configured to generate a first digital detection data used for proximity sensing based on the first comparison output signal outputted from the first source amplifier.

    DEVICE AND METHOD FOR PROXIMITY SENSING ON AN INPUT DEVICE
    8.
    发明申请
    DEVICE AND METHOD FOR PROXIMITY SENSING ON AN INPUT DEVICE 有权

    公开(公告)号：US20210157434A1

    公开(公告)日：2021-05-27

    申请号：US17142462

    申请日：2021-01-06

    Applicant: Synaptics Incorporated

    Inventor： Shinobu Nohtomi ,  Nobukazu Tanaka ,  Takayuki Noto

    IPC: G06F3/041 ,  G09G3/20 ,  H03K17/955 ,  G06F3/044

    Abstract: A processing system comprises a first source amplifier and an analog front end. The first source amplifier comprises a first input electrically connectable to a first sensor electrode of a display panel and configured to generate a first drive signal based on a first grayscale voltage corresponding to a first pixel data and generate a first comparison output signal based on a first sensing signal from the first sensor electrode and a reference voltage. The analog front end is configured to generate a first digital detection data used for proximity sensing based on the first comparison output signal outputted from the first source amplifier.

    Device and method for proximity sensing on an input device
    9.
    发明授权
    Device and method for proximity sensing on an input device 有权

    公开(公告)号：US10928944B1

    公开(公告)日：2021-02-23

    申请号：US16692755

    申请日：2019-11-22

    Applicant: SYNAPTICS INCORPORATED

    Inventor： Shinobu Nohtomi ,  Nobukazu Tanaka ,  Takayuki Noto

    IPC: G06F3/041 ,  H03K17/955 ,  G06F3/044 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/36

    Abstract: A processing system comprises a first source amplifier and an analog front end. The first source amplifier comprises a first input electrically connectable to a first sensor electrode of a display panel and configured to generate a first drive signal based on a first grayscale voltage corresponding to a first pixel data and generate a first comparison output signal based on a first sensing signal from the first sensor electrode and a reference voltage. The analog front end is configured to generate a first digital detection data used for proximity sensing based on the first comparison output signal outputted from the first source amplifier.

    Methods and systems for matrix electrode arrays
    10.
    发明授权
    Methods and systems for matrix electrode arrays 有权

    公开(公告)号：US10318084B2

    公开(公告)日：2019-06-11

    申请号：US15707213

    申请日：2017-09-18

    Applicant: Synaptics Incorporated

    Inventor： Petr Shepelev ,  Tetsuo Tanemura ,  Nobukazu Tanaka ,  Takayuki Noto

    IPC: G06F3/044 ,  G06F1/16 ,  G06F3/041 ,  G09G3/36 ,  G09G3/20 ,  G02F1/1333 ,  G09G3/3208

    Abstract: An input device may include a matrix electrode array that includes various transmitter electrodes and various receiver electrodes. The transmitter electrodes may be disposed in a first direction. The receiver electrodes may be disposed in a second direction that is substantially parallel with the first direction. The input device may further include a first set of routing traces coupled to the transmitter electrodes and disposed underneath the transmitter electrodes in the first direction. The input device may further include a second set of routing traces coupled to the receiver electrodes and disposed underneath the receiver electrodes in the second direction.

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