公开(公告)号：US11907453B2

公开(公告)日：2024-02-20

申请号：US17712936

申请日：2022-04-04

Applicant: Synaptics Incorporated

Inventor： Makoto Takeuchi ,  Hirokazu Hatayama ,  Masaaki Shiomura ,  Nobukazu Tanaka ,  Daisuke Ito ,  Takayuki Noto ,  Takashi Miyamoto

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/04182

Abstract: A display driver includes a driver circuit and a sensing controller. The driver circuit is configured to drive a display panel according to display information. The display panel defines a sensing region. The sensing controller interface circuit is configured to transmit an output vertical sync signal to a proximity sensing controller. The proximity sensing controller is configured to generate positional information of an input object based at least in part on a resulting signal received from a sensor electrode disposed in the sensing region. The output vertical sync signal comprises encoding the display information in the output vertical sync signal.

公开(公告)号：US20230152925A1

公开(公告)日：2023-05-18

申请号：US17525846

申请日：2021-11-12

Applicant: Synaptics Incorporated

Inventor： Masaaki Shiomura ,  Daisuke Ito ,  He-Wei Li

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04184 ,  G06F3/044 ,  G06F3/04166

Abstract: Driving a display of an input-display device includes generating, during a first display frame, a first touch sensing waveform to be applied to a touch screen of the display, and generating, during a second display frame, a second touch sensing waveform to be applied to the touch screen. The first touch sensing waveform generates on the display a first touch-to-display noise pattern of touch-to-display noise artifacts. The second touch sensing waveform generates on the display a second touch-to-display noise pattern of touch-to-display noise artifacts. The second touch-to-display noise pattern mitigates the first touch-to-display noise pattern.

公开(公告)号：US11592937B1

公开(公告)日：2023-02-28

申请号：US17689720

申请日：2022-03-08

Applicant: Synaptics Incorporated

Inventor： Masaaki Shiomura ,  Nobukazu Tanaka ,  Daisuke Ito ,  Sung-Sool Lee

IPC: G06F3/041 ,  G06F3/044

Abstract: A display controller includes a touch sensing controller configured to drive sensing electrodes with a touch sensing waveform that includes multiple modulations. The touch sensing controller is further configured to halt driving the plurality of sensing electrodes when a number of the modulations satisfies a selected sub-burst size. The touch sensing waveform is synchronized to an instance of a horizontal sync signal.

公开(公告)号：US11513635B2

公开(公告)日：2022-11-29

申请号：US17716267

申请日：2022-04-08

Applicant: Synaptics Incorporated

Inventor： Daisuke Ito ,  Hiroshi Takeyama ,  Jonathan Losh

IPC: G06F3/041 ,  G06F3/044

Abstract: A processing system for an input device comprises sensor circuitry. The sensor circuitry is configured to operate sensor electrodes for input sensing during a first sensing frame. During a first period of the first sensing frame the sensor circuitry is configured to drive a first portion of the sensor electrodes with a sensing signal, drive a second portion of the sensor electrodes with a guarding signal, and drive a third portion of the sensor electrodes with a reference signal. The guarding signal and the sensing signal have at least one characteristic in common selected from the group consisting of amplitude, phase and frequency. The third portion of the sensor electrodes overlaps a first gate line of a display panel selected for updating during the first period.

公开(公告)号：US20230315223A1

公开(公告)日：2023-10-05

申请号：US17712936

申请日：2022-04-04

Applicant: Synaptics Incorporated

Inventor： Makoto Takeuchi ,  Hirokazu Hatayama ,  Masaaki Shiomura ,  Nobukazu Tanaka ,  Daisuke Ito ,  Takayuki Noto ,  Takashi Miyamoto

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/04182

Abstract: A display driver includes a driver circuit and a sensing controller. The driver circuit is configured to drive a display panel according to display information. The display panel defines a sensing region. The sensing controller interface circuit is configured to transmit an output vertical sync signal to a proximity sensing controller. The proximity sensing controller is configured to generate positional information of an input object based at least in part on a resulting signal received from a sensor electrode disposed in the sensing region. The output vertical sync signal comprises encoding the display information in the output vertical sync signal.

公开(公告)号：US11467694B2

公开(公告)日：2022-10-11

申请号：US17243192

申请日：2021-04-28

Applicant: Synaptics Incorporated

Inventor： Daisuke Ito ,  Jonathan Losh

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/32 ,  G09G3/3291

Abstract: An input-display device includes a display screen disposed on a display substrate, the display screen including a multitude of display pixels. The input-display device further includes a multitude of capacitive sensing electrodes for capacitive sensing in a sensing region of the display screen. The input-display device also includes a source driver circuit configured to generate a data voltage for driving a pixel circuit associated with one display pixel of the multitude of display pixels and determine a timing for a compensatory modulation of the data voltage. The timing is determined using a sensing waveform of the capacitive sensing. The source driver circuit is also configured to determine an amplitude of the compensatory modulation, generate a modulated data voltage by applying the compensatory modulation to the data voltage, and drive the pixel circuit using the modulated data voltage.

公开(公告)号：US20220187976A1

公开(公告)日：2022-06-16

申请号：US17243192

申请日：2021-04-28

Applicant: Synaptics Incorporated

Inventor： Daisuke Ito ,  Jonathan Losh

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3291

Abstract: An input-display device includes a display screen disposed on a display substrate, the display screen including a multitude of display pixels. The input-display device further includes a multitude of capacitive sensing electrodes for capacitive sensing in a sensing region of the display screen. The input-display device also includes a source driver circuit configured to generate a data voltage for driving a pixel circuit associated with one display pixel of the multitude of display pixels and determine a timing for a compensatory modulation of the data voltage. The timing is determined using a sensing waveform of the capacitive sensing. The source driver circuit is also configured to determine an amplitude of the compensatory modulation, generate a modulated data voltage by applying the compensatory modulation to the data voltage, and drive the pixel circuit using the modulated data voltage.

公开(公告)号：US12130989B2

公开(公告)日：2024-10-29

申请号：US18463402

申请日：2023-09-08

Applicant: Synaptics Incorporated

Inventor： Masaaki Shiomura ,  Daisuke Ito ,  He-Wei Li

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04184 ,  G06F3/04166 ,  G06F3/044

Abstract: Driving a display of an input-display device includes generating, during a first display frame, a first touch sensing waveform to be applied to a touch screen of the display, and generating, during a second display frame, a second touch sensing waveform to be applied to the touch screen. The first touch sensing waveform generates on the display a first touch-to-display noise pattern of touch-to-display noise artifacts. The second touch sensing waveform generates on the display a second touch-to-display noise pattern of touch-to-display noise artifacts. The second touch-to-display noise pattern mitigates the first touch-to-display noise pattern.

公开(公告)号：US11816285B2

公开(公告)日：2023-11-14

申请号：US17707692

申请日：2022-03-29

Applicant: Synaptics Incorporated

Inventor： Daisuke Ito ,  Nobukazu Tanaka ,  Masaaki Shiomura

IPC: G06F3/041 ,  G09G5/10

CPC classification number: G06F3/04166 ,  G09G5/10 ,  G06F2203/04101 ,  G09G2310/027

Abstract: An input-display device includes a display panel, sensor electrodes, and a display driver. The display panel includes source lines. The sensor electrodes are capacitively coupled to the source lines. The display driver is configured to receive image data. The display driver is further configured to process the image data in response to a detection of a horizontal stripe pattern in an image corresponding to the image data. The display driver is further configured to drive the source lines based at least in part on the processed image data.

公开(公告)号：US11556195B2

公开(公告)日：2023-01-17

申请号：US16912624

申请日：2020-06-25

Applicant: Synaptics Incorporated

Inventor： Petr Shepelev ,  Daisuke Ito ,  Toshifumi Ogata

IPC: G06F3/041 ,  G09G3/3208 ,  G06F3/044

Abstract: An input-display device includes a display screen on a display substrate and capacitive sensing electrodes for capacitive sensing in a sensing region of the display screen. The input-display device also includes a touch and display driver integration (TDDI) circuit on the display substrate, the TDDI circuit including a source driver circuit driving a subset of display pixels of the display screen based on a processed image signal, and an analog frontend for the capacitive sensing, interfacing with the capacitive sensing electrodes to obtain touch signals. The input-display device also includes an image processing circuit generating the processed image signal based on a received image signal and a display parameter, a touch processing circuit generating a touch output signal by processing the touch signals based on instructions of a touch firmware, and a memory physically separate from the display substrate, the memory storing the display parameter and the touch firmware.