公开(公告)号：US11335295B1

公开(公告)日：2022-05-17

申请号：US17339803

申请日：2021-06-04

Applicant: Synaptics Incorporated

Inventor： Tomohiro Hirakawa ,  Takayuki Noto ,  Masaaki Shiomura ,  Hirokazu Hatayama ,  Yoriaki Miyoshi ,  Keiichi Yoshida ,  Hiroshi Shimura

IPC: G09G3/36 ,  G06F3/01 ,  G06F3/044 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  G06F3/041

Abstract: A processing system includes a timing controller and source driver circuitry. The timing controller is configured to stop scanning of a plurality of gate lines of a display panel in response to a detection of a communication failure between the processing system and a controller. The source driver circuitry is configured to update a plurality of display elements of the display panel to cause a black display in response to expiration of a time limit after the detection of the communication failure. The timing controller may be further configured to resume the scanning of the plurality of gate lines in response to the expiration of the time limit.

公开(公告)号：US12230219B2

公开(公告)日：2025-02-18

申请号：US18505654

申请日：2023-11-09

Applicant: Synaptics Incorporated

Inventor： Hirokazu Hatayama ,  Makoto Takeuchi ,  Shigeru Ota

IPC: G09G3/3275

Abstract: A display driver includes a memory, a data driver, and a control circuit. The data driver is configured to: in a first mode, update a display panel based at least in part on a command provided to the display driver asynchronously with a display vertical sync signal; and in a second mode, update the display panel based at least in part on first image data stored in the memory in synchronization with the display vertical sync signal. The control circuit configured to: switch from the first mode to the second mode in response to a first command; and, in the second mode, adjust the display vertical sync signal based at least in part on an external vertical sync signal.

公开(公告)号：US20240134474A1

公开(公告)日：2024-04-25

申请号：US18403522

申请日：2024-01-03

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：US20240071319A1

公开(公告)日：2024-02-29

申请号：US18505654

申请日：2023-11-09

Applicant: Synaptics Incorporated

Inventor： Hirokazu Hatayama ,  Makoto Takeuchi ,  Shigeru Ota

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2360/02

Abstract: A display driver includes a memory, a data driver, and a control circuit. The data driver is configured to: in a first mode, update a display panel based at least in part on a command provided to the display driver asynchronously with a display vertical sync signal; and in a second mode, update the display panel based at least in part on first image data stored in the memory in synchronization with the display vertical sync signal. The control circuit configured to: switch from the first mode to the second mode in response to a first command; and, in the second mode, adjust the display vertical sync signal based at least in part on an external vertical sync signal.

公开(公告)号：US20230325027A1

公开(公告)日：2023-10-12

申请号：US17717780

申请日：2022-04-11

Applicant: Synaptics Incorporated

Inventor： Masaaki Shiomura ,  Hirokazu Hatayama ,  Makoto Takeuchi ,  Takayuki Noto ,  Nobukazu Tanaka ,  Daisuke Ito ,  Tomohiro Hirakawa

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

CPC classification number: G06F3/04166 ,  G06F3/0442 ,  G09G2310/08 ,  G09G2340/0435 ,  G09G2330/021 ,  G09G3/20

Abstract: In general, in one aspect, one or more embodiments relate to an input device that includes a proximity sensing panel including sensor electrodes, and a proximity sensing circuit. The proximity sensing circuit is configured to determine that an image refresh rate to an equal or lower frequency than a beacon signal rate. The input-display device is configured to align transmitting a beacon signal on proximity sensing panel to during non-refresh period of a display or perform an additional image refresh frame on the display panel immediately before a next Vsync signal and a corresponding non-refresh period.

公开(公告)号：US20230306913A1

公开(公告)日：2023-09-28

申请号：US17703925

申请日：2022-03-24

Applicant: Synaptics Incorporated

Inventor： Hirokazu Hatayama ,  Makoto Takeuchi ,  Shigeru Ota

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2360/02

Abstract: A display driver includes a GRAM, a data driver, and a control circuit. The data driver is configured to: update, in a first mode, display elements of a display panel based on a command provided to the display driver asynchronously with a display vertical sync signal; update, in a second mode, the display elements based on image data stored in the GRAM in synchronization with the display vertical sync signal; and update, in a third mode, the display elements in synchronization with an external vertical sync signal. The control circuit is configured to: switch the display drive to a second mode in response to a first command; adjust, in the second mode, the display vertical sync signal based on an external vertical sync signal; and switch the display driver to the third mode after achieving synchronization of the display vertical sync signal with the external vertical sync signal.