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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.
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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.
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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.
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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
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.
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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.
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公开(公告)号：US12169608B2
公开(公告)日：2024-12-17
申请号：US18502139
申请日：2023-11-06
Applicant: Synaptics Incorporated
Inventor： Masaaki Shiomura , Hirokazu Hatayama , Makoto Takeuchi , Takayuki Noto , Nobukazu Tanaka , Daisuke Ito , Tomohiro Hirakawa
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 configured to receive an indication of a transition from a first image refresh rate to a second image refresh rate, wherein the first image refresh rate is greater than a beacon signal rate and the second image refresh rate is equal to or lower than the beacon signal rate. The proximity sensing panel is also configured to align transmitting a beacon signal on the proximity sensing panel to a non-refresh period corresponding to the second refresh rate.
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公开(公告)号：US20240069671A1
公开(公告)日：2024-02-29
申请号：US18502139
申请日：2023-11-06
Applicant: Synaptics Incorporated
Inventor： Masaaki Shiomura , Hirokazu Hatayama , Makoto Takeuchi , Takayuki Noto , Nobukazu Tanaka , Daisuke Ito , Tomohiro Hirakawa
CPC classification number: G06F3/04166 , G06F3/0442 , G09G3/20 , G09G2310/08 , G09G2330/021 , G09G2340/0435
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 configured to receive an indication of a transition from a first image refresh rate to a second image refresh rate, wherein the first image refresh rate is greater than a beacon signal rate and the second image refresh rate is equal to or lower than the beacon signal rate. The proximity sensing panel is also configured to align transmitting a beacon signal on the proximity sensing panel to a non-refresh period corresponding to the second refresh rate.
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公开(公告)号：US11861103B2
公开(公告)日：2024-01-02
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
CPC classification number: G06F3/04166 , G06F3/0442 , G09G3/20 , G09G2310/08 , G09G2330/021 , G09G2340/0435
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.
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9.发明授权
公开(公告)号：US11194420B2
公开(公告)日：2021-12-07
申请号：US16688982
申请日：2019-11-19
Applicant: SYNAPTICS INCORPORATED
Inventor： Atsushi Shikata , Shigeru Ota , Makoto Takeuchi , Jiro Shimbo , Kentaro Suzuki
Abstract: A processing system comprises interface circuitry and a timing controller. The interface circuitry is configured to receive a vertical sync period indicator that indicates a start of an external vertical sync period. The timing controller is configured to, in response to a change in a display frame rate, control timing of a display drive operation and a proximity sensing operation to maintain a proximity sensing frame rate based on input timing of the vertical sync period indicator to the interface circuitry. The processing system is configured to supply drive signals to display elements of a display panel in the display drive operation and acquire sensing signals from sensor electrodes of the display panel in the proximity sensing operation.
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公开(公告)号：US11151941B1
公开(公告)日：2021-10-19
申请号：US16893776
申请日：2020-06-05
Applicant: Synaptics Incorporated
Inventor： Atsushi Shikata , Kazuhiro Okamura , Hirobumi Furihata , Shigeru Ota , Makoto Takeuchi
IPC: G09G3/32 , G09G3/3258
Abstract: A display driver includes signal supply circuitry and a power source controller. The signal supply circuitry is configured to update a display panel during a refresh period and not update the display panel during a non-refresh period that follows the refresh period. The power source controller is configured to modify a high-side power source voltage supplied to the display panel at least during the non-refresh period.
