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：US11567605B2

公开(公告)日：2023-01-31

申请号：US17172062

申请日：2021-02-09

Applicant: Samsung Display Co., LTD.

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

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes: a display panel and an input sensor disposed on the display panel and operable in a first mode and a second mode different from the first mode, wherein the input sensor may include a plurality of sensing electrodes, a plurality of sensing wirings electrically connected to the plurality of sensing electrodes, respectively, and a blocking part covering the plurality of sensing wirings. The blocking part is configured to be floated in the first mode and to receive a substantially constant voltage in the second mode.

公开(公告)号：US12243457B2

公开(公告)日：2025-03-04

申请号：US18150931

申请日：2023-01-06

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G01R31/26 ,  G09G3/00

Abstract: Disclosed is an apparatus for inspecting a defect of a display panel. The apparatus for inspecting includes the display panel that displays an image, an input sensor that is disposed on the display panel and senses an input applied from outside, a sensor driving part that drives the input sensor, and an inspection part that is connected with the sensor driving part, sets a frequency of the input sensor to an inspection frequency, and detects the defect of the display panel based on a change in a jitter occurring when the input sensor is driven at the inspection frequency. The inspection frequency includes a harmonic frequency of a driving frequency of the display panel.

公开(公告)号：US12019822B2

公开(公告)日：2024-06-25

申请号：US18095530

申请日：2023-01-10

Applicant: Samsung Display Co., Ltd.

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

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04162 ,  G06F3/0446 ,  G06F3/0412 ,  G06F2203/04107

Abstract: A display device includes: a display panel; and an input sensor disposed on the display panel, wherein the input sensor includes: a plurality of sensing electrodes; a plurality of sensing wirings electrically connected to the plurality of sensing electrodes, respectively; and a conductive part covering the plurality of sensing wirings, wherein the conductive part is configured to be floated or to receive a substantially constant voltage, and wherein the conductive part has a single, contiguous shape.

公开(公告)号：US20230064190A1

公开(公告)日：2023-03-02

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 ,  G01R31/50 ,  G01R31/28

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.

公开(公告)号：US11467688B2

公开(公告)日：2022-10-11

申请号：US17477967

申请日：2021-09-17

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

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：US20220121309A1

公开(公告)日：2022-04-21

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 ,  H01L27/32 ,  H01L51/52 ,  G01R31/28

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：US20220108660A1

公开(公告)日：2022-04-07

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 ,  H01L51/52 ,  H01L27/32

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.