公开(公告)号：US20230289009A1

公开(公告)日：2023-09-14

申请号：US18092342

申请日：2023-01-02

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHYUN LIM ,  YOUNGSIK KIM

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/04164 ,  G06F3/0446

Abstract: Disclosed is a display device including a display panel, an input sensor that is disposed on the display panel and that includes sensing electrodes, a master readout circuit that is electrically connected with a first portion of the sensing electrodes and that generates first reception signals corresponding to a signal received from the first portion of the sensing electrodes, and a slave readout circuit that is electrically connected with the a second portion of the sensing electrodes and that generates second reception signals corresponding to a signal received from the second portion of the sensing electrodes. The master readout circuit provides a synchronization signal to the slave readout circuit, and the slave readout circuit operates in response to the synchronization signal and provides a sensing signal corresponding to the second reception signals to the master readout circuit.

公开(公告)号：US20220392407A1

公开(公告)日：2022-12-08

申请号：US17697132

申请日：2022-03-17

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHYUN LIM

IPC: G09G3/3266 ,  G09G3/3275 ,  G06F3/044

Abstract: A display device includes a display panel including a plurality of pixels for displaying an image and a plurality of data lines electrically connected with the pixels, and a panel driving block that receives an image signal from an outside and transmits a data signal to the display panel through the data lines. The display panel includes a plurality of impedance control units that are electrically connected with the data lines, respectively, and adjusts an impedance of each of the data lines in response to an impedance control signal.

公开(公告)号：US20220326809A1

公开(公告)日：2022-10-13

申请号：US17582890

申请日：2022-01-24

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHYUN LIM ,  GAYOUNG KIM ,  YOUNGMIN PARK ,  Hyunjee JEON

IPC: G06F3/044 ,  H01L27/32 ,  H04M1/02

Abstract: An electronic device includes a display panel and an input sensor disposed on the display panel and having a first sensing electrode extending in a first direction. The first sensing electrode includes a first trunk portion extending in the first direction and a first branch portion extending from the first trunk portion in a second direction crossing the first direction. The first branch portion includes a plurality of first branches and a plurality of second branches. The first branches extend in a direction opposite to a direction in which the second branches extend in the second direction, and the number of the first branches is equal to the number of the second branches.

公开(公告)号：US20250156004A1

公开(公告)日：2025-05-15

申请号：US18793645

申请日：2024-08-02

Applicant: Samsung Display Co., Ltd.

Inventor： HYUNGBAE KIM ,  GWANG-BUM KO ,  SANGHYUN LIM

IPC: G06F3/041 ,  G06F3/044

Abstract: An electronic device includes: a display panel; a sensor layer on the display panel, the sensor layer having a sensing area corresponding to a display area of the display panel, the sensing area comprising a first area and a second area surrounding the first area; and a sensor driver configured to: drive the sensor layer; receive a sensing signal corresponding to an input device, the sensing signal comprising a first peak value, a second peak value, and a third peak value; and calculate coordinates of the input device at the second area based on the second peak value and the third peak value.

公开(公告)号：US20250130675A1

公开(公告)日：2025-04-24

申请号：US18774755

申请日：2024-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHYUN LIM

IPC: G06F3/044 ,  G06F3/041 ,  H10K59/12 ,  H10K59/40

Abstract: A display device includes a display panel and an input sensor. The input sensor may include a first detection pattern, and a first detection electrode including a bridge pattern electrically connected to the first detection pattern. The bridge pattern may include a (1-1)-th conductive layer, and a (1-2)-th conductive layer, and the first detection pattern may include a (2-1)-th conductive layer, and a (2-2)-th conductive layer. A first opening portion that exposes the one surface of the (1-1)-th conductive layer may be defined in the (1-2)-th conductive layer, and a second opening portion that exposes the one surface of the (2-1)-th conductive layer may be defined in the (2-2)-th conductive layer. The one surface of the (1-1)-th conductive layer and the one surface of the (2-1)-th conductive layer may be in contact with each other.

公开(公告)号：US20250077035A1

公开(公告)日：2025-03-06

申请号：US18816181

申请日：2024-08-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUNJEE JEON ,  GWANG-BUM KO ,  SANGHYUN LIM

IPC: G06F3/046 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/041 ,  H10K59/126 ,  H10K59/40

Abstract: The present application relates to a display device and an electronic device including the same. The display device includes a display panel including a display region and a non-display region, and an input sensor disposed on the display panel. The display panel includes a base layer including resin layers, pixels disposed on the base layer and overlapping the display region, a charging electrode disposed under at least one resin layer and overlapping the display region, and a first shielding pattern disposed on the base layer and overlapping the display region, the first shielding pattern having a first thickness and having at least one slit dividing the first shielding pattern into sections. The first thickness corresponds to a thickness satisfying a relation of the following equation: T ⁢ 1 ≤ ( D A ⁢ B ⁢ C ) 1 / 2 , where T1 represents the first thickness, A is π, B is permeability of the first shielding pattern, C is frequency of electric current flowing through the first shielding pattern, and D is resistivity of the first shielding pattern.

公开(公告)号：US20250053262A1

公开(公告)日：2025-02-13

申请号：US18774129

申请日：2024-07-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUNGBAE KIM ,  SANGHYUN LIM

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/32

Abstract: An electronic device includes a host processor to output a first signal having a first frequency and a second signal having a second frequency higher than the first frequency and containing frame data, a driving controller configured to receive the frame data from the host processor and to generate image data, a display layer to display an image based on the image data, a sensor layer disposed on the display layer and including a plurality of sensing electrodes, and a sensor driver to provide a transmit signal having a third frequency to the plurality of sensing electrodes. The host processor determines the first frequency based on the third frequency.

公开(公告)号：US20250021190A1

公开(公告)日：2025-01-16

申请号：US18740111

申请日：2024-06-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUNGBAE KIM ,  SANGHYUN LIM

IPC: G06F3/041

Abstract: Provided is an electronic device. The electronic device includes a display layer, a sensor layer disposed on the display layer and including a plurality of sensing electrodes, a sensor driving part, a first virtual sensor part including a plurality of virtual electrodes, a first RC circuit electrically connected between the sensor driving part and the first virtual sensor part, and a flexible circuit board which is connected to the display layer and on which the sensor driving part and the first RC circuit are disposed. The sensor driving part may be configured to receive a touch signal from the plurality of sensing electrodes and receive a first noise signal from the plurality of virtual electrodes, the first RC circuit may be configured to control a magnitude of the first noise signal, and the sensor driving part may be configured to subtract the touch signal and the first noise signal.

公开(公告)号：US20240127740A1

公开(公告)日：2024-04-18

申请号：US18234792

申请日：2023-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： KYOWON KU ,  SANGHYUN LIM

IPC: G09G3/32

CPC classification number: G09G3/32

Abstract: An input sensing device includes: an input sensor including a transmission electrode, a first reception electrode, and a second reception electrode; and a readout circuit configured to provide a transmit signal to the transmission electrode, to receive a first receive signal from the first reception electrode, and to receive a second receive signal from the second reception electrode, wherein the readout circuit includes: a switching circuit configured to transfer the first receive signal and the second receive signal to a first node and a second node, respectively, during a touch sensing period and to transfer one of the first receive signal and the second receive signal to the first node and the second node during a compensation period; a first output circuit configured to convert a signal of the first node into a first sensing signal; and a second output circuit configured to convert a signal of the second node into a second sensing signal.

公开(公告)号：US20220137773A1

公开(公告)日：2022-05-05

申请号：US17337864

申请日：2021-06-03

Applicant: Samsung Display Co., Ltd.

Inventor： SANGHYUN LIM

IPC: G06F3/041 ,  G06F3/046 ,  G09G3/20

Abstract: A display device includes a display panel which displays an image, a touch sensor which senses a touch, a display controller which drives the display panel, and a touch controller which drives the touch sensor. The display controller transfers a timing signal representing a timing of a display operation to the touch controller, and provides display driving information to the touch controller by modulating the timing signal in a blank period of a frame period.