公开(公告)号：US20230418415A1

公开(公告)日：2023-12-28

申请号：US18100228

申请日：2023-01-23

Applicant: Samsung Display Co., Ltd.

Inventor： WOOMI BAE ,  JINWOO KIM ,  SOONGYU LEE ,  HYOJIN LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/045 ,  G06F2203/04108 ,  G06F3/044

Abstract: A display device includes a display panel, a touch panel on the display panel, a host processor, and a display panel driver. The host processor receives proximity data of the touch panel. The display panel driver receives an input control signal from the host processor and drives the display panel based on the input control signal. The touch panel includes a proximity area and a non-proximity area. The host processor counts a rise of the proximity data in the proximity area to generate a first count value. The host processor resets the first count value when the proximity data in the non-proximity area increase.

公开(公告)号：US20240143113A1

公开(公告)日：2024-05-02

申请号：US18451417

申请日：2023-08-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYOJIN LEE ,  SOONGYU LEE ,  JINWOO KIM ,  WOOMI BAE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04182 ,  G06F3/0446 ,  G06F2203/04108

Abstract: A display device includes a display panel, an input sensor operating in an input sensing mode or a proximity sensing mode, a sensor controller driving the input sensor in the input sensing mode or the proximity sensing mode, and a main controller controlling driving of the sensor controller. The input sensor includes a sensing area and a non-sensing area. The sensing area is divided into a proximity sensing area and a plurality of reference areas in the proximity sensing mode. The main controller generates a noise control signal based on a plurality of reference sensing signals sensed in the reference areas, and determines whether an object is in proximity based on the noise control signal and a proximity sensing signal sensed in the proximity sensing area.

公开(公告)号：US20240086015A1

公开(公告)日：2024-03-14

申请号：US18236581

申请日：2023-08-22

Applicant: SAMSUNG DISPLAY CO. LTD

Inventor： KEUMDONG JUNG ,  JINWOO KIM

IPC: G06F3/041 ,  G09G3/3266

CPC classification number: G06F3/04184 ,  G09G3/3266 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2354/00

Abstract: A display device including: a display panel; an input sensor disposed on the display panel and including a transmission electrode and a reception electrode; a readout circuit configured to output a low-voltage transmission signal and to receive a reception signal from the reception electrode; and an output circuit configured to convert the low-voltage transmission signal into a transmission signal and to provide the transmission signal to the transmission electrode.

公开(公告)号：US20220069634A1

公开(公告)日：2022-03-03

申请号：US17363902

申请日：2021-06-30

Applicant: Samsung Display Co., Ltd.

Inventor： SOONGYU LEE ,  JINWOO KIM

IPC: H02J50/80 ,  H02J50/10 ,  G06F1/16 ,  G06F3/0354

Abstract: A display device includes: a display panel comprising a display area at which an image is displayed; an input sensor on the display panel and configured to operate in a first mode to sense a first input or in a second mode to sense a second input provided by an input device; a sensor controller configured to control an operation of the input sensor; and a wireless power supply configured to transmit a wireless power signal to the input device at a transmission frequency in response to the input sensor operating in the second mode, wherein the sensor controller is configured to transmit an uplink signal to the input device through the input sensor in the second mode, and the uplink signal comprises a set signal corresponding to the transmission frequency of the wireless power signal.

公开(公告)号：US20240069672A1

公开(公告)日：2024-02-29

申请号：US18328285

申请日：2023-06-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYOJIN LEE ,  SOONGYU LEE ,  JINWOO KIM ,  WOOMI BAE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/041662 ,  G06F3/0446

Abstract: A method of driving an input sensor to detect a proximity of a user includes driving the input sensor in a direct sensing mode, the input sensor including first sensing electrodes and second sensing electrodes insulated from the first sensing electrodes, and upon determining the user is engaged in a call, driving the input sensor in in a first proximity sensing mode by applying a driving signal to each of the first sensing electrodes. when the user has not performed the direct touch, and driving the input sensor in a second proximity sensing mode by applying no driving signal to a first subset of the first sensing electrodes and applying the driving signal to a second other subset of the first sensing electrodes, when the user has performed the direct touch.

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：US20190362684A1

公开(公告)日：2019-11-28

申请号：US16534288

申请日：2019-08-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JINWOO KIM ,  BYEONG-DOO KANG ,  JONG-HWA KIM ,  JONGMAN BAE

IPC: G09G3/36

Abstract: A display panel driving apparatus includes a data driver, a gate driver, an extra resistance part through which a constant current passes, and a circuit configured to generate a first gamma voltage, and output a first extra gamma voltage indirectly to the data driver through the extra resistance part. The data driver is configured to generate a data signal based on the first gamma voltage and output the data signal to a data line of a display panel. The gate driver is configured to output a gate signal to a gate line of the display panel.

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.