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：US20230022093A1

公开(公告)日：2023-01-26

申请号：US17717315

申请日：2022-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwoo Park ,  Taejoon Kim ,  Jungmok Park ,  Il Ho Lee ,  Wankee Jun ,  Hyun-Wook Cho

IPC: G06F3/041 ,  H01L27/32

Abstract: A display device including: a display panel configured to display an image in units of a frame; an input sensor disposed on the display panel, and configured to sense an external input; a panel driver configured to control driving of the display panel in response to a synchronization signal; and a sensor controller configured to control driving of the input sensor, wherein the sensor controller receives the synchronization signal from the panel driver and outputs a plurality of transmission signals to the input sensor, and the plurality of transmission signals are varyingly generated based on the synchronization signal.

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：US12216144B2

公开(公告)日：2025-02-04

申请号：US18340678

申请日：2023-06-23

Applicant: Samsung Display Co., Ltd.

Inventor： Eunsol Seo ,  Hyun-Wook Cho ,  Sangkook Kim ,  Taejoon Kim ,  Eungkwan Lee ,  Jaewoo Choi

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

Abstract: In a method for testing an electronic device, the method includes: providing an electronic device including a display layer and a sensor layer on the display layer and configured to operate at a touch drive frequency, the sensor layer including a plurality of first electrodes and a plurality of second electrodes insulatively intersecting the plurality of first electrodes; providing a test signal having a test frequency higher than the touch drive frequency to the plurality of first electrodes; measuring mutual capacitance with the plurality of first electrodes through the plurality of second electrodes; and determining whether or not the sensor layer is defective, based on the mutual capacitance.

公开(公告)号：US11995265B2

公开(公告)日：2024-05-28

申请号：US17955794

申请日：2022-09-29

Applicant: Samsung Display Co., Ltd.

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

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

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/0446 ,  H10K59/12

Abstract: A display device includes a display panel that displays an image, an input sensor that senses an external input, and a sensing controller that controls the driving of the input sensor. The input sensor includes a plurality of scanning electrodes and a plurality of sensing electrodes. The sensing controller simultaneously transmits input scanning signals to at least two scanning electrodes of the plurality of scanning electrodes during a group scanning period. The group scanning period includes a plurality of scanning periods. The sensing controller transmits a compensating signal having a phase different from a phase of at least one of the input scanning signals to at least one sensing electrode of the plurality of sensing electrodes during at least one scanning period of the plurality of scanning periods.

公开(公告)号：US11893187B2

公开(公告)日：2024-02-06

申请号：US17717315

申请日：2022-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwoo Park ,  Taejoon Kim ,  Jungmok Park ,  Il Ho Lee ,  Wankee Jun ,  Hyun-Wook Cho

IPC: G06F3/041 ,  H10K59/40

CPC classification number: G06F3/04184 ,  H10K59/40

Abstract: A display device including: a display panel configured to display an image in units of a frame; an input sensor disposed on the display panel, and configured to sense an external input; a panel driver configured to control driving of the display panel in response to a synchronization signal; and a sensor controller configured to control driving of the input sensor, wherein the sensor controller receives the synchronization signal from the panel driver and outputs a plurality of transmission signals to the input sensor, and the plurality of transmission signals are varyingly generated based on the synchronization signal.

公开(公告)号：US11797142B2

公开(公告)日：2023-10-24

申请号：US18054939

申请日：2022-11-14

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0446 ,  G06F3/0412

Abstract: A display device includes a display panel and an input sensing panel. The input sensing panel includes pluralities of first and second sensing electrodes and electrostatic induction patterns, each of which is connected to a sensing electrode from one of the pluralities of sensing electrodes and overlaps another sensing electrode from the other one of the pluralities of sensing electrodes. The input sensing panel includes a first area where deviations of mutual capacitances between the first and second sensing electrodes are small and a second area where the deviations are large. The electrostatic induction patterns include first electrostatic induction patterns disposed in the first area and second electrostatic induction patterns disposed in the second area, the second electrostatic induction patterns having a different area from the first electrostatic induction patterns, or the number of second electrostatic induction patterns being different from the number of first electrostatic induction patterns.

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.