公开(公告)号：US11670242B2

公开(公告)日：2023-06-06

申请号：US17369106

申请日：2021-07-07

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/3275 ,  G09G3/3266 ,  H01L27/32 ,  H01L51/52

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  H01L27/323 ,  H01L27/326 ,  H01L51/5237 ,  G09G2310/027

Abstract: An electronic device includes display driver and a sensor driver. The display driver drives a display layer and provide a grayscale voltage to a data lines. The sensor driver is synchronized with the display driver to drive a sensor layer, and operates in a first sensing mode and a second sensing mode. In the first sensing mode, the sensor driver senses an input through the sensor layer based on a first timing. In the second sensing mode, the sensor driver senses an input through the sensor layer based on a second timing different from the first timing.

公开(公告)号：US11592939B1

公开(公告)日：2023-02-28

申请号：US17730523

申请日：2022-04-27

Applicant: Samsung Display Co., Ltd.

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

IPC: G06F3/041 ,  G09G3/20

Abstract: Disclosed is a display device including a display panel, an input sensing layer, a display controller that drives the display panel and outputs a synchronization signal including information about an operating frequency of the display panel, and a sensing controller that receives the synchronization signal and determines an operating frequency of the input sensing layer based on the synchronization signal. A driving frame of the display panel includes a first section during which an image is not displayed and a second section during which an image is displayed. During the driving frame, the display controller transmits a data signal for displaying an image to the display panel. The synchronization signal includes a first pulse corresponding to a timing of the first section, and a second pulse corresponding to a timing of the second section.

公开(公告)号：US12135845B2

公开(公告)日：2024-11-05

申请号：US17399304

申请日：2021-08-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaehyun Park ,  Min-Hong Kim ,  Jungmok Park ,  Jiyeong Lee ,  Hyun-Wook Cho

IPC: G06F3/041 ,  G01R31/28 ,  H10K50/842 ,  H10K59/40 ,  G06F3/044

Abstract: An electronic device includes a display panel, an input sensor disposed on the display panel and including a sensing electrode, a first signal line connected to the sensing electrode, and a second signal line connected to the sensing electrode, and a circuit board electrically connected to the input sensor. The circuit board includes a first group signal line electrically connected to the first signal line, a second group signal line electrically connected to the first group signal line and to the second signal line, a first inspection signal line electrically connected to the first group signal line, and a second inspection signal line electrically connected to the second group signal line.

公开(公告)号：US12073040B2

公开(公告)日：2024-08-27

申请号：US17962669

申请日：2022-10-10

Applicant: Samsung Display Co., Ltd.

Inventor： Junseong Lee ,  Bogeun Yuk ,  Min-Hong Kim ,  Taejoon Kim ,  Eungkwan Lee ,  Hyun-Wook Cho

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0446 ,  G06F2203/04108

Abstract: A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.

公开(公告)号：US11360615B2

公开(公告)日：2022-06-14

申请号：US17180191

申请日：2021-02-19

Applicant: Samsung Display Co., Ltd.

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

IPC: G06F3/044 ,  G06F3/041 ,  H01L27/32

Abstract: An electronic device may include a display panel, and an input sensor, in which a first region, a second region enclosing the first region, and a third region enclosing the second region are defined, on the display panel and including sensing electrodes including a first electrode including a first main electrode and a first subsidiary electrode, and a second electrode adjacent the first electrode, and including a second main electrode and a second subsidiary electrode between the first main electrode and the first subsidiary electrode in the first region.

公开(公告)号：US12130979B2

公开(公告)日：2024-10-29

申请号：US17242717

申请日：2021-04-28

Applicant: Samsung Display Co., Ltd.

Inventor： Min-Hong Kim ,  Hyun-Wook Cho ,  Taejoon Kim ,  Jaehyun Park ,  Jungmok Park ,  Bogeun Yuk

IPC: G06F3/041 ,  H05K1/18 ,  H01R12/52

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  H05K1/181 ,  H01R12/52 ,  H05K2201/10128 ,  H05K2201/10378 ,  H05K2201/10515 ,  H05K2201/10522 ,  H05K2201/1053

Abstract: A circuit board includes a base substrate, and a connection structure disposed on the base substrate, and connected to the base substrate by an accessing part. The connection structure includes a first connection electrode, a second connection electrode disposed in a same layer as the first connection electrode, a third connection electrode connected to the first connection electrode on the first connection electrode, and a fourth connection electrode connected to the second connection electrode on the second connection electrode, and disposed in a same layer as the third connection electrode.

公开(公告)号：US12086350B2

公开(公告)日：2024-09-10

申请号：US17450877

申请日：2021-10-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun-Wook Cho ,  Min-Hong Kim ,  Taejoon Kim ,  Jungmok Park ,  Jinwoo Park

IPC: G06F3/041 ,  G06F3/044 ,  H05K1/14 ,  H05K1/18 ,  H10K59/40

CPC classification number: G06F3/04164 ,  H05K1/142 ,  G06F3/0446 ,  G06F2203/04111 ,  H05K1/18 ,  H05K1/189 ,  H05K2201/049 ,  H10K59/40

Abstract: A display device includes a display panel, and an input sensor disposed on the display panel. The input sensor includes a detection electrode in an active area of the input sensor, a signal line connected to the detection electrode, a slave chip connected to the signal line and overlapping a non-active area adjacent to the active area, a master chip overlapping the non-active area, and a plurality of connection lines connecting the master chip and the slave chip so that a sensed signal of the detection electrode is delivered to the master chip through the slave chip.

公开(公告)号：US12069806B2

公开(公告)日：2024-08-20

申请号：US17681842

申请日：2022-02-28

Applicant: Samsung Display Co., LTD.

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

IPC: H05K1/18 ,  H05K1/14 ,  H02J50/00 ,  H02J50/10

CPC classification number: H05K1/18 ,  H05K1/147 ,  H02J50/005 ,  H02J50/10 ,  H05K2201/1003 ,  H05K2201/10128

Abstract: A display device includes a display panel including a first surface and a second surface opposite to the first surface, the second surface having a first area and a second area surrounding the first area, a conductive sheet disposed on the second surface of the display panel and including a first conductive line disposed in the first area and extending in a first direction and a conductive layer disposed in the second area, a first circuit board bending from the first surface to the second surface to be connected to a first end of the first conductive line, and a second circuit board spaced apart from the first circuit board in the first direction, the second circuit board bending from the first surface to the second surface to be connected to a second end opposite to the first end of the first conductive line.

公开(公告)号：US11614834B2

公开(公告)日：2023-03-28

申请号：US17583729

申请日：2022-01-25

Applicant: Samsung Display Co., Ltd.

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

IPC: G06F3/041 ,  G06F3/044

Abstract: Disclosed is a display device including a display panel, an input sensing layer, a display controller that receives a vertical synchronization signal and a horizontal synchronization signal and controls an operation of the display panel depending on the vertical synchronization signal and the horizontal synchronization signal, and a sensing controller that receives the vertical synchronization signal and the horizontal synchronization signal and generates a driving control signal for driving the input sensing layer. One frame of the vertical synchronization signal includes a first vertical section and a second vertical section in which the display controller transmits a data signal to the display panel. The sensing controller determines an operating frequency of the driving control signal based on a horizontal synchronization signal, which is included in a first horizontal section overlapping with the first vertical section, in the horizontal synchronization signal.

公开(公告)号：US12074427B2

公开(公告)日：2024-08-27

申请号：US17865422

申请日：2022-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： Min-Hong Kim ,  Taejoon Kim ,  Jungmok Park ,  Hyun-Wook Cho ,  Jaewoo Choi

IPC: H02H3/24 ,  G01R27/02 ,  G01R31/28 ,  G01R31/50

CPC classification number: H02H3/24 ,  G01R27/025 ,  G01R31/2837 ,  G01R31/50

Abstract: An input sensor short-circuit inspection method including: setting an inspection frequency for detecting a short-circuit of an input sensor comprising a plurality of electrodes; driving the input sensor in an inspection mode at the set inspection frequency; and detecting the short-circuit of the input sensor based on a capacitance charged between adjacent electrodes among the plurality of electrodes of the input sensor in the inspection mode.