公开(公告)号：US12223140B2

公开(公告)日：2025-02-11

申请号：US18095906

申请日：2023-01-11

Applicant: Samsung Display Co., Ltd.

Inventor： Hyungbae Kim ,  Hyun-Wook Cho ,  Sangkook Kim ,  Taejoon Kim ,  Jaehyun Park ,  Jiyeong Lee

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

Abstract: Provided is a display device comprising a display panel, an input sensor including a first sensing area having a first sub-area and a second sub-area, and a first sensor controller configured to drive the first sensing area. Here, the input sensor includes first sensing electrodes disposed in the first sub-area to receive a first transmission signal from the first sensor controller, second sensing electrodes disposed in the first sub-area and intersected with the first sensing electrodes, third sensing electrodes disposed in the second sub-area to receive a second transmission signal having a phase inverted from that of the first transmission signal from the first sensor controller, and fourth sensing electrodes disposed in the second sub-area and intersected with the third sensing electrodes.

公开(公告)号：US11579738B2

公开(公告)日：2023-02-14

申请号：US17531846

申请日：2021-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Wook Cho ,  Min-Hong Kim ,  Sangkook Kim ,  TaeJoon Kim ,  Jungmok Park

IPC: G06F3/044 ,  G06F3/041

Abstract: A circuit board including: a body part including a driving chip; a pad part including a plurality of pads connected to a plurality of lines, wherein the pad part extends in a first direction from the body part; and a line part including a first line of the lines, wherein the first line is electrically connected to the driving chip, the line part extends in the first direction from the body part, and the line part is bendable with respect to a bending line.

公开(公告)号：US12164735B2

公开(公告)日：2024-12-10

申请号：US18156928

申请日：2023-01-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyungbae Kim ,  Hyun-Wook Cho ,  Sangkook Kim ,  Taejoon Kim

IPC: G09G5/00 ,  G06F3/041 ,  G06F3/044 ,  H10K59/40

Abstract: An input sensing part includes a first sensing electrode, a second sensing electrode that is insulated from the first sensing electrode and crosses the first sensing electrode, a plurality of dummy electrodes that are disposed in dummy areas located between the first and second sensing electrodes, when viewed in a plan view, and a dummy connection pattern that is insulated from the first and second sensing electrodes. The dummy connection pattern crosses the first sensing electrode or the second sensing electrode, when viewed in a plan view, and connects the dummy electrodes.

公开(公告)号：US12056309B2

公开(公告)日：2024-08-06

申请号：US18053509

申请日：2022-11-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eungkwan Lee ,  Hyun-Wook Cho ,  Sangkook Kim ,  Taejoon Kim ,  Jeongheon Lee

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/04186 ,  G06F3/0443 ,  G06F3/0446 ,  G06F2203/04111

Abstract: An electronic device includes a display layer, a sensor layer, and a sensor driver that receives a sensitivity value from a node defined in an area where one electrode intersects one cross electrode, and calculates an input coordinate based on the sensitivity value. When the sensitivity value received from the node is equal to or greater than a first threshold value, the sensor driver calculates the input coordinate based on the sensitivity value. When each of a plurality of sensitivity values received from the node and a plurality of peripheral nodes adjacent to the node is less than the first threshold value and greater than or equal to a second threshold value, the sensor driver calculates the input coordinate based on the plurality of sensitivity values.

公开(公告)号：US12039127B2

公开(公告)日：2024-07-16

申请号：US18132326

申请日：2023-04-07

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Wook Cho ,  Youngsik Kim ,  Sangkook Kim ,  Taejoon Kim

IPC: G06F3/041 ,  G06F3/042 ,  H10K59/131 ,  H10K59/40 ,  H10K59/88

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  G06F3/0421 ,  H10K59/131 ,  H10K59/40 ,  H10K59/88 ,  G06F2203/04102

Abstract: A display device, includes: a display panel including an active region and a peripheral region which are adjacent to each other; and an input-sensing panel on the display panel, the input-sensing panel comprising a first region, a second region, and a third region, which are overlapped with the active region and are sequentially arranged, and a fourth region, which is overlapped with the peripheral region, wherein the input-sensing panel comprises: a sensing electrode in the first and second regions and includes a plurality of conductive lines; and a trace line in the third and fourth regions and connected to the sensing electrode, wherein a density per unit area of the conductive lines is higher in the second region than in the first region.

公开(公告)号：US20230305659A1

公开(公告)日：2023-09-28

申请号：US18155041

申请日：2023-01-16

Applicant: Samsung Display Co., Ltd.

Inventor： HYUNGBAE KIM ,  Hyun-Wook Cho ,  Sangkook Kim ,  Taejoon Kim

IPC: G06F3/041 ,  H10K59/40 ,  H10K59/80

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/04164 ,  H10K59/40 ,  H10K59/873 ,  G06F2203/04112 ,  G06F2203/04107 ,  G06F3/0446

Abstract: A display device includes a display panel, and an input sensing part disposed on the display panel and in which an active region and a non-active region around the active region are defined. The input sensing part includes a plurality of sensing electrodes dispose in the active region, a plurality of sensing lines electrically connected to the sensing electrodes and disposed in the non-active region, and a guard line, a ground line, and an electromagnetic attenuating line spaced apart from the sensing lines and disposed in the non-active region. The guard line, the ground line, and the electromagnetic attenuating line are disposed at an outside of the sensing lines.

公开(公告)号：US20250123706A1

公开(公告)日：2025-04-17

申请号：US18909946

申请日：2024-10-09

Applicant: Samsung Display Co., Ltd.

Inventor： Bongil Kang ,  Minhong Kim ,  Sangkook Kim ,  Yerin Oh

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device is disclosed that includes a display panel displaying an image, a display driving portion configured to drive the display panel, a touch unit disposed on the display panel and including a driving electrode and a sensing electrode, a touch driving portion configured to transmit a touch driving signal to the driving electrode and receive a touch sensing signal from the sensing electrode, and a main processor configured to control the display driving portion and the touch driving portion, in which a driving frequency of the touch driving signal is determined based on an amount of change in touch capacitance due to an external input, with respect to touch capacitance between the driving electrode and the sensing electrode.

公开(公告)号：US12073045B2

公开(公告)日：2024-08-27

申请号：US18155041

申请日：2023-01-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyungbae Kim ,  Hyun-Wook Cho ,  Sangkook Kim ,  Taejoon Kim

IPC: G06F3/041 ,  H10K59/40 ,  H10K59/80 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/04164 ,  H10K59/40 ,  H10K59/873 ,  G06F3/0446 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: A display device includes a display panel, and an input sensing part disposed on the display panel and in which an active region and a non-active region around the active region are defined. The input sensing part includes a plurality of sensing electrodes dispose in the active region, a plurality of sensing lines electrically connected to the sensing electrodes and disposed in the non-active region, and a guard line, a ground line, and an electromagnetic attenuating line spaced apart from the sensing lines and disposed in the non-active region. The guard line, the ground line, and the electromagnetic attenuating line are disposed at an outside of the sensing lines.

公开(公告)号：US11906561B2

公开(公告)日：2024-02-20

申请号：US17464293

申请日：2021-09-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bongil Kang ,  Joo-Hyeon Jeong ,  Jun-Young Ko ,  Sangkook Kim ,  Gayeon Yun

IPC: G01R27/26 ,  G01R31/28 ,  G09G3/00 ,  H10K59/40

CPC classification number: G01R27/2605 ,  G01R31/2825 ,  G09G3/006 ,  H10K59/40

Abstract: An inspection device inspects a display for defects. The display includes a power supply, a circuit board having a stabilizer to stabilize the power supply, a display panel which is electrically connected to the circuit board and has a first electrode, and an input sensor which is disposed on the display panel and has a second electrode. The inspection logic measures a value of capacitance between the first electrode and the second electrode of the display, and includes a frequency setter that sets a driving frequency of the second electrode to a frequency in a predetermined range.

公开(公告)号：US11733793B2

公开(公告)日：2023-08-22

申请号：US17487165

申请日：2021-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Bongil Kang ,  Sangkook Kim ,  Gayeon Yun

IPC: G06F3/041 ,  G06F3/044 ,  G01R27/26

CPC classification number: G06F3/0412 ,  G01R27/2605 ,  G06F3/0443 ,  G06F3/0446 ,  G06F3/0447 ,  G06F3/04164 ,  G06F2203/04111

Abstract: A method of testing an electronic device includes providing an electronic device. The electronic device includes a display layer that includes a common electrode. The electronic device also includes a sensor layer disposed on the display layer and that includes a first sensing electrode and a second sensing electrode. The first sensing electrode and the second sensing electrode cross each other and are electrically disconnected. The method further includes providing a test signal that includes a test frequency to the first sensing electrode, measuring a capacitance of a capacitor disposed between the first and second sensing electrodes based on the test signal, and testing the common electrode based on the capacitance.