公开(公告)号：US20240143114A1

公开(公告)日：2024-05-02

申请号：US18341729

申请日：2023-06-26

Applicant: Samsung Display Co., LTD.

Inventor： Jun Young KO ,  Tae Hyeon YANG ,  Han Su CHO ,  Tae Joon KIM ,  Hyun Wook CHO ,  Jae Woo CHOI

IPC: G06F3/041 ,  G09G3/3275

CPC classification number: G06F3/04184 ,  G06F3/04164 ,  G09G3/3275 ,  G09G2310/08 ,  G09G2354/00

Abstract: A driving circuit includes: a display driver to generate a horizontal synchronization signal and a vertical synchronization signal according to a first clock signal of a first oscillator; a sensor driver to generate a touch signal according to a second clock signal of a second oscillator; and a determination circuit to detect a cycle of at least one of the horizontal synchronization signal or the vertical synchronization signal according to the second clock signal, and output a detection signal when the cycle is out of a range. The determination circuit is a part of the display driver or the sensor driver.

公开(公告)号：US20230315228A1

公开(公告)日：2023-10-05

申请号：US18102069

申请日：2023-01-26

Applicant: Samsung Display Co., Ltd.

Inventor： Hyung Bae KIM ,  Sang Kook KIM ,  Tae Joon KIM ,  Jae Hyun PARK ,  Ji Yeong LEE ,  Hyun Wook CHO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0446

Abstract: A touch detection module includes driving electrodes extending parallel to each other, sensing electrodes crossing the driving electrodes, and a touch driver circuit for supplying touch driving signals to the driving electrodes and for detecting touch sensing signals through the sensing electrodes to determine touch position coordinates. The touch driver circuit selects between a group driving scheme and a sequential driving scheme for at least one frame. According to the group driving scheme, the touch driver circuit sorts the driving electrodes into groups, simultaneously drives driving electrodes in a same group among the groups, and drives the groups at different times. According to the sequential driving scheme, the touch driving circuit sequentially drives the driving electrodes.

公开(公告)号：US20250077034A1

公开(公告)日：2025-03-06

申请号：US18637955

申请日：2024-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eung Kwan LEE ,  Tae Joon KIM ,  Ji Yeong LEE ,  Hyun Wook CHO ,  Jae Woo CHOI

IPC: G06F3/044 ,  G06F3/041

Abstract: A display device includes a plurality of touch cells, and a central area and an edge area. The plurality of touch cells is arranged in a first direction and a second direction crossing the first direction, and is located in the central area and the edge area. The edge area includes first to fourth sub-edge areas. Shapes of touch cells in the central area are different from shapes of touch cells in the edge area. Shapes of touch cells in the first and second sub-edge areas are different from shapes of touch cells in the third and fourth sub-edge areas.

公开(公告)号：US20240404440A1

公开(公告)日：2024-12-05

申请号：US18804628

申请日：2024-08-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Hyeon YANG ,  Jun Young KO ,  Han Su CHO ,  Tae Joon KIM ,  Jae Woo CHOI

IPC: G09G3/00 ,  G06F3/041 ,  G06F3/044 ,  G09G3/3233

Abstract: A display device includes a touch panel and a display panel. The touch panel outputs touch sensing signals. At least one of a plurality of touch sensing signals is converted from a time domain to a frequency domain, and then information on a thickness of a common electrode is detected based on a peak of the converted touch sensing signal. As a result, it is possible to inspect whether the common electrode is formed with a uniform thickness without destroying the display device.

公开(公告)号：US20240264695A1

公开(公告)日：2024-08-08

申请号：US18406481

申请日：2024-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Woo CHOI ,  Jun Young KO ,  Tae Joon KIM ,  Gyeong Nam BANG ,  Hye Yun HAN

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04164 ,  G06F3/0443 ,  G06F3/0446 ,  G06F2203/04112

Abstract: A touch sensor may include a sensing area and a non-sensing area. The touch sensor may include: a sensor base layer; a first sensing electrode and a second sensing electrode each disposed on the sensor base layer in the sensing area; a first sensing line and a second sensing line each disposed on the sensor base layer, the first sensing line being electrically connected to the first sensing electrode, the second sensing line being electrically connected to the second sensing electrode; and an auxiliary line disposed on the sensor base layer. The second sensing line may include a 2-1-th sensing line disposed in the sensing area, and a 2-2-th sensing line disposed in the non-sensing area. The auxiliary line may overlap the second sensing electrode in a plan view, enclose at least a portion of the 2-1-th sensing line, and be electrically connected to the second sensing electrode.

公开(公告)号：US20240220044A1

公开(公告)日：2024-07-04

申请号：US18211487

申请日：2023-06-19

Applicant: Samsung Display Co., Ltd.

Inventor： Min Hong KIM ,  Tae Joon KIM ,  Jung Mok PARK ,  Jin Woo PARK ,  Hyun Wook CHO

IPC: G06F3/041 ,  G09G3/20

CPC classification number: G06F3/0416 ,  G09G3/2096 ,  G09G2300/0842

Abstract: According to an embodiment of the disclosure, a display device includes a sensor driver receiving firmware from an host in which the firmware is stored, the sensor driver including a second memory storing the firmware supplied from the host and initialized when a reset signal is supplied from the host, and a sensing unit for supplying a recovery signal corresponding to an abnormal state of the sensor driver to the host while sensing at least one of an internal voltage and a clock signal of the sensor driver.

公开(公告)号：US20240134487A1

公开(公告)日：2024-04-25

申请号：US18402507

申请日：2024-01-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyung Bae KIM ,  Min Hong KIM ,  Sang Kook KIM ,  Tae Joon KIM ,  Jae Hyun PARK ,  Ji Yeong LEE ,  Hyun Wook CHO

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0443 ,  G06F3/04164 ,  G06F3/0446

Abstract: A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.

公开(公告)号：US20230326228A1

公开(公告)日：2023-10-12

申请号：US18132262

申请日：2023-04-07

Applicant: Samsung Display Co., Ltd.

Inventor： Kee Yong KIM ,  Jung Hun SIN ,  Young Sik KIM ,  Tae Joon KIM ,  Hee Woong PARK ,  Sang Wook YOO

IPC: G06V40/13 ,  G06V40/12

CPC classification number: G06V40/13 ,  G06V40/1347 ,  G06V40/1365

Abstract: Provided is a fingerprint authentication device comprising a biometric sensor that senses biometric information to generate a sensing signal; an image processor that extracts a calibration function based on calibration data and generates a fingerprint image based on the calibration function and the sensing signal; and an authenticator that performs fingerprint authentication by comparing the fingerprint image and registered fingerprint information. The calibration data includes information on a calibration coefficient of the calibration function.

公开(公告)号：US20230152928A1

公开(公告)日：2023-05-18

申请号：US17807166

申请日：2022-06-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUNG BAE KIM ,  Min Hong Kim ,  Sang Kook KIM ,  Tae Joon KIM ,  Jae Hyun PARK ,  Ji Yeong LEE ,  Hyun Wook CHO

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0443 ,  G06F3/0446 ,  G06F3/04164

Abstract: A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.

公开(公告)号：US20180011582A1

公开(公告)日：2018-01-11

申请号：US15643442

申请日：2017-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Young KO ,  Tae Joon KIM ,  Sang Kook KIM ,  Eung Kwan LEE ,  Hyun Wook CHO ,  Eun Sol SEO

IPC: G06F3/041

Abstract: Disclosed is a touch sensor, including: first sensing patterns extended in a first direction and arranged in a second direction crossing the first direction, in which each of the first sensing patterns includes: first variable resistive patterns arranged in the first direction; and first conductive patterns connecting the first variable resistive patterns, and lengths of the first variable resistive patterns in the first direction are increased in the second direction.