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：US20240338095A1

公开(公告)日：2024-10-10

申请号：US18423672

申请日：2024-01-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KYOUNGHUN BEEN ,  HYOJIN LEE ,  YOUNGSIK KIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/041662 ,  G06F3/04184 ,  G06F3/0446 ,  G06F2203/04101

Abstract: Disclosed is an electronic device which include a display layer that includes a plurality of pixels, a sensor layer disposed on the display layer and includes a plurality of first electrodes and a plurality of second electrodes, a display driver that drives the display layer, and a sensor driver that drives the sensor layer and selectively operates, in a proximity sensing mode, in a first mode or a second mode different from the first mode. When the electronic device enters the proximity sensing mode, the display layer operates in an active period during which data are received from the display driver and a blank period during which the data are not received. The sensor driver operates in the second mode in a period overlapping the blank period.

公开(公告)号：US20240118769A1

公开(公告)日：2024-04-11

申请号：US18450362

申请日：2023-08-15

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0446

Abstract: An input sensing device includes a sensor that includes a plurality of first electrodes and a plurality of second electrodes, and a sensor driver that operates in a first sensing mode and a second sensing mode. During the first sensing mode, the sensor driver generates a first sensing signal by transmitting transmission signals to the sensor and receiving reception signals from the sensor. During the second sensing mode, the sensor driver generates a second sensing signal by transmitting the transmission signals to the sensor and receiving the reception signals from the sensor. The sensor driver selects one of a plurality of compensation maps based on the first sensing signal, compensates for the second sensing signal based on the selected compensation map, and outputs the compensated sensing signal.

公开(公告)号：US20220083193A1

公开(公告)日：2022-03-17

申请号：US17334607

申请日：2021-05-28

Applicant: Samsung Display Co., Ltd.

Inventor： JINA KANG ,  DONGCHUN LEE ,  SOONGYU LEE ,  JINWOO KIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G09G3/20 ,  G09G3/00

Abstract: An electronic device includes: an input sensor on a display panel; and a sensor controller configured to operate in a first mode for sensing a first input by an input device or a second mode for sensing a second input through the input sensor, the sensor controller being configured to transmit an uplink signal to the input device through the input sensor and to receive a downlink signal from the input device through the input sensor in the first mode, wherein an input sensing frame comprises an uplink period in which the uplink signal is provided to the input sensor, and an interval between a start time point of the display frame and a start time point of the uplink period is variable in a unit of at least one input sensing frame during k input sensing frames, where k is an integer equal to or greater than 2.

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.