公开(公告)号：US20250103159A1

公开(公告)日：2025-03-27

申请号：US18825670

申请日：2024-09-05

Applicant: Samsung Display Co., Ltd.

Inventor： BO-HWAN LEE ,  SANGHUN PARK ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes a display layer, and a sensor layer having a sensing region and a second sensing region. The sensor layer includes a plurality of first transmission electrodes and a plurality of second transmission electrodes, a first transmission signal having a first waveform and a second transmission signal having a second waveform are provided to the plurality of first transmission electrodes, a third transmission signal having the second waveform and a fourth transmission signal having the first waveform are provided to the plurality of second transmission electrodes, and the first to fourth transmission signals are provided concurrently.

公开(公告)号：US20240119877A1

公开(公告)日：2024-04-11

申请号：US18446195

申请日：2023-08-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： YONGSUB SO ,  KEUMDONG JUNG ,  SANGHUN PARK ,  DA EUN YI ,  BO-HWAN LEE ,  BYEONGKYU JEON

IPC: G09G3/02

CPC classification number: G09G3/025 ,  G09G2300/0804 ,  G09G2310/021 ,  G09G2310/0213 ,  G09G2310/08 ,  G09G2360/12 ,  G09G2370/22

Abstract: A display device includes a display panel, an input sensor disposed on the display panel and sensing an input during a sensing frame period, a display controller receiving a vertical synchronization signal and a horizontal synchronization signal and controlling driving of the display panel in response to the vertical synchronization signal and the horizontal synchronization signal, and a sensor controller providing a transmission signal including a plurality of sampling periods to the input sensor. The display controller provides frequency information of a display frame period to the sensor controller using at least one of the vertical synchronization signal and the horizontal synchronization signal, and the sensor controller controls the number of the sampling periods of the sensing frame period based on the frequency information.

公开(公告)号：US20230138868A1

公开(公告)日：2023-05-04

申请号：US17812251

申请日：2022-07-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： CHANGBUM KIM ,  JINA KANG ,  JINWOO KIM ,  BYEONGKYU JEON

IPC: G06F3/044 ,  G06F3/041

Abstract: An electronic device includes a display panel, an input sensor disposed on the display panel and including first sensing electrodes extending in a first direction and second sensing electrodes extending in a second direction crossing the first direction, and a sensor controller connected to the input sensor. First and second areas are defined in the input sensor based on an input position to which an input by an input device is applied. The input position is located in the first area and not in the second area. The sensor controller applies a first signal to at least one first sensing electrode disposed in the first area and at least one second sensing electrode disposed in the first area and applies a second signal having an opposite phase to a phase of the first signal to the other first and second sensing electrodes disposed in the second area.

公开(公告)号：US20230114072A1

公开(公告)日：2023-04-13

申请号：US17960558

申请日：2022-10-05

Applicant: Samsung Display Co., Ltd.

Inventor： JINA KANG ,  JINWOO KIM ,  CHANGBUM KIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3275

Abstract: An electronic device includes a display panel, an input sensor, a panel driver, and a sensor controller. The panel driver drives the display panel at a first operating frequency in a first driving mode and drives the display panel at a second operating frequency lower than the first operating frequency in a second driving. The display panel displays the image in units of first driving frames in the first driving mode and displays the image in units of second driving frames in the second driving mode. The sensor controller transmits a first mode uplink signal to the input sensor in a first scheme in the first driving mode and transmits a second mode uplink signal to the input sensor in a second scheme different from the first scheme in the second driving mode.

公开(公告)号：US20220057882A1

公开(公告)日：2022-02-24

申请号：US17243060

申请日：2021-04-28

Applicant: Samsung Display Co., Ltd.

Inventor： DONGCHUN LEE ,  JINWOO KIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/044

Abstract: An electronic device includes: a display panel configured to display an image; an input sensor comprising transmission electrodes on the display panel and reception electrodes that insulately cross the transmission electrodes; and a sensor controller configured to operate in a first mode or a second mode different from the first mode, wherein, in the first mode, the sensor controller is configured to transmit an uplink signal to an input device through the input sensor and to receive a downlink signal from the input device through the input sensor, wherein an input sensing frame, in which the sensor controller operates in the first mode, comprises an uplink period for which the uplink signal is provided to the input sensor, and the sensor controller is configured to not apply the uplink signal to at least a portion of the transmission electrodes during the uplink period.

公开(公告)号：US20250147622A1

公开(公告)日：2025-05-08

申请号：US18883930

申请日：2024-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHUN PARK ,  YONGSUB SO ,  BYEONGKYU JEON ,  HYEONSEO CHO

IPC: G06F3/041 ,  G06F1/16 ,  G06F3/0354 ,  G06F3/044

Abstract: An electronic device which includes a display layer that operates in a folded state or an unfolded state and has an active region including a folding region and a plurality of non-folding regions, a sensor layer, and a sensor driver that operates in a charging drive mode to transmit a charging signal to the sensor layer. The sensor layer includes a plurality of first electrodes, a plurality of second electrodes, a plurality of first auxiliary electrodes, and a plurality of second auxiliary electrodes. The sensor driver sequentially provides the charging signal to the plurality of first auxiliary electrodes in a first direction during the charging drive mode, and the number of times that the charging signal is provided in the folded state and the number of times that the charging signal is provided in the unfolded state are different from each other.

公开(公告)号：US20250117098A1

公开(公告)日：2025-04-10

申请号：US18739500

申请日：2024-06-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SANGHUN PARK ,  YOUNGMIN PARK ,  YONGSUB SO ,  BO-HWAN LEE ,  HOEUNG LEE ,  BYEONGKYU JEON

IPC: G06F3/041 ,  H03M1/78

Abstract: A touch sensor apparatus may include a multiplexer including a first transistor connected to a first touch sensor and a second transistor connected to a second touch sensor, a touch driver connected to the first touch sensor through the first transistor and connected to the second touch sensor through the second transistor, the first touch sensor disposed at a first distance from the touch driver and the second touch sensor disposed at a second distance shorter than the first distance from the touch driver. A first on-resistance of the first transistor may be smaller than a second on-resistance of the second transistor.

公开(公告)号：US20240028166A1

公开(公告)日：2024-01-25

申请号：US18474504

申请日：2023-09-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： CHANGBUM KIM ,  JINA KANG ,  JINWOO KIM ,  BYEONGKYU JEON

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0442 ,  G06F3/0446 ,  G06F3/04162

Abstract: An electronic device includes a display panel, an input sensor disposed on the display panel and including first sensing electrodes extending in a first direction and second sensing electrodes extending in a second direction crossing the first direction, and a sensor controller connected to the input sensor. First and second areas are defined in the input sensor based on an input position to which an input by an input device is applied. The input position is located in the first area and not in the second area. The sensor controller applies a first signal to at least one first sensing electrode disposed in the first area and at least one second sensing electrode disposed in the first area and applies a second signal having an opposite phase to a phase of the first signal to the other first and second sensing electrodes disposed in the second area.

公开(公告)号：US20230409146A1

公开(公告)日：2023-12-21

申请号：US18104725

申请日：2023-02-01

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGBUM KIM ,  JINA KANG ,  MIYOUNG KIM ,  KANGWON LEE ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038

CPC classification number: G06F3/04186 ,  G06F3/04162 ,  G06F3/03545 ,  G06F3/0383 ,  G06F2203/04106

Abstract: An electronic device includes: a display layer; a sensor layer to operate in a first mode for detecting a first input by a touch, and a second mode different from the first mode and including a plurality of frames; and a sensor controller to control the sensor layer. Each of the plurality of frames includes a downlink signal including information used to detect a second input by an input device, and a sensing signal including information used to detect the first input. When the first input is detected in the second mode, the sensor controller is to: output first coordinates of the first input based on the sensing signal of at least one frame in which the first input is detected; and correct second coordinates of the second input based on the first coordinates during a period of at least two frames including the at least one frame.

公开(公告)号：US20250085808A1

公开(公告)日：2025-03-13

申请号：US18742275

申请日：2024-06-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SANGHUN PARK ,  JASEUNG KU ,  JINWOO KIM ,  BO-HWAN LEE ,  SANGHYUN LIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch sensor apparatus includes a touch sensor and a transistor. The transistor is connected to the touch sensor. The transistor includes a first electrode configured to receive a first touch driving signal, a control electrode configured to receive a second touch driving signal and a second electrode connected to the touch sensor. A phase of the first touch driving signal is substantially the same as a phase of the second touch driving signal.