公开(公告)号：US11481053B2

公开(公告)日：2022-10-25

申请号：US16363345

申请日：2019-03-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hak Kim ,  Do Ik Kim ,  Gwang Bum Ko ,  Ga Young Kim ,  Young Sik Kim ,  Sang Chul Lee

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52

Abstract: A touch sensor includes a base layer and a plurality of first touch electrodes disposed on the base layer. The plurality of first touch electrodes are arranged in a first direction. The plurality of first touch electrodes include openings, and are electrically connected to one another. A plurality of second touch electrodes are disposed on the base layer. The plurality of second touch electrodes are arranged in a second direction. The plurality of second touch electrodes are electrically connected to one another. First pressure sensing electrodes and second pressure sensing electrodes are separated from each other and are disposed in the openings. The pressure sensing electrodes and second pressure sensing electrodes are spaced apart from the first touch electrodes. The first pressure sensing electrodes, the second pressure sensing electrodes, the first touch electrodes, and the second touch electrodes are all disposed in a first layer.

公开(公告)号：US11231819B2

公开(公告)日：2022-01-25

申请号：US17222856

申请日：2021-04-05

Applicant: Samsung Display Co., Ltd.

Inventor： Do Ik Kim ,  Jang hui Kim ,  Sang Chul Lee ,  Ga Young Kim

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.

公开(公告)号：US11079870B2

公开(公告)日：2021-08-03

申请号：US16596116

申请日：2019-10-08

Applicant: Samsung Display Co., Ltd.

Inventor： Kang Won Lee ,  Choon Hyop Lee ,  Sang Chul Lee ,  Seung Hwan Chung

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes: a display panel; a pressure sensor disposed below the display panel, the pressure sensor configured to detect pressure applied to the display panel; and a supporting layer disposed on a surface of the pressure sensor facing away from the display panel.

公开(公告)号：US11061508B2

公开(公告)日：2021-07-13

申请号：US17026333

申请日：2020-09-21

Applicant: Samsung Display Co., Ltd.

Inventor： Do Ik Kim ,  Sang Hyun Lim ,  Ga Young Kim ,  Young Sik Kim ,  Sang Chul Lee

IPC: G06F3/041 ,  G06F3/044

Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.

公开(公告)号：US10775916B2

公开(公告)日：2020-09-15

申请号：US16163116

申请日：2018-10-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Do Ik Kim ,  Gwang Bum Ko ,  Jung Hak Kim ,  Sang Chul Lee ,  Ga Young Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

Abstract: There is provided a display device including a high-sensitivity touch sensor. A display device includes: pixels arranged in a display region; sensing electrodes arranged in a sensing region; sensing lines coupled to the respective sensing electrodes; a noise detection electrode disposed on the same layer as the sensing electrodes; sensing channels each including a first input terminal coupled to any one of the sensing electrodes and a second input terminal coupled to the noise detection electrode, the sensing channels each generating an output signal corresponding to a voltage difference between the first and second input terminals; and a processor detecting a touch input, using the output signals of the sensing channels.

公开(公告)号：US12147632B2

公开(公告)日：2024-11-19

申请号：US18374569

申请日：2023-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Do Ik Kim ,  Jang hui Kim ,  Sang Chul Lee ,  Ga Young Kim

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.

公开(公告)号：US12105925B2

公开(公告)日：2024-10-01

申请号：US18238578

申请日：2023-08-28

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Hui Kim ,  Ga Young Kim ,  Do Ik Kim ,  Sang Chul Lee ,  A Ra Jo

IPC: G06F3/045

CPC classification number: G06F3/045 ,  G06F2203/04105

Abstract: A touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the first touch electrodes and the second touch electrodes.

公开(公告)号：US12079411B2

公开(公告)日：2024-09-03

申请号：US18309745

申请日：2023-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hak Kim ,  Do Ik Kim ,  Ga Young Kim ,  Young Sik Kim ,  Sang Chul Lee

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3225

CPC classification number: G06F3/0412 ,  G06F3/0418 ,  G06F3/04184 ,  G06F3/044 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0446 ,  G06F2203/04111 ,  G09G3/3225

Abstract: A display device includes a display region and a sensing region overlapping with each other, a plurality of pixels in the display region, a plurality of first electrodes arranged in a first direction in the sensing region, a plurality of second electrodes arranged in a second direction in the sensing region, and a driving circuit including a display driver for driving the pixels corresponding to image data, and a touch driver for sensing a touch input using a sensing signal input from each of the first electrodes, and configured to supply a noise compensation signal corresponding to the image data to the second electrodes during a period in which the pixels are driven.

公开(公告)号：US12007815B2

公开(公告)日：2024-06-11

申请号：US17154649

申请日：2021-01-21

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Jae Lee ,  Jang Hui Kim ,  Kang Won Lee ,  Sang Chul Lee

IPC: G06F1/16 ,  H01Q1/38

CPC classification number: G06F1/1698 ,  H01Q1/38

Abstract: A display device includes: a substrate; a first sensor electrode and a second sensor electrode disposed on the substrate; an antenna electrically separated from the first sensor electrode to transmit and receive radio frequency signals; and an antenna feed line electrically connected to the antenna pattern.

公开(公告)号：US11775123B2

公开(公告)日：2023-10-03

申请号：US17713085

申请日：2022-04-04

Applicant: Samsung Display Co., Ltd.

Inventor： Do Ik Kim ,  Ga Young Kim ,  Young Sik Kim ,  Sang Chul Lee

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0445 ,  G06F3/0418 ,  G06F3/0446 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: A touch sensor includes a sensor unit including a plurality of first electrodes in an active area spaced apart from each other, and at least one second electrode, a plurality of sensing channels respectively coupled to one of the first electrodes, and each sensing channel including a reference node having a variable voltage coupled to the at least one second electrode, and a processor configured to receive output signals from the sensing channels, and detect a touch input based on the output signals. The plurality of sensing channels may be configured to supply driving signals to respective first electrodes during a first period, receive sensing signals from respective first electrodes during a second period, and generate the output signals corresponding to the sensing signals received from respective first electrodes based on potentials of the respective reference nodes. A method of driving a touch sensor also is disclosed.