公开(公告)号：US20220244803A1

公开(公告)日：2022-08-04

申请号：US17723344

申请日：2022-04-18

Applicant: Samsung Display Co., Ltd.

Inventor： Ga Young KIM ,  Jang Hui Kim ,  A Ra Jo

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/045

Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.

公开(公告)号：US20210223888A1

公开(公告)日：2021-07-22

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：US20220334700A1

公开(公告)日：2022-10-20

申请号：US17545452

申请日：2021-12-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun LIM ,  Ga Young KIM ,  Young Min PARK ,  Hyun Jee JEON

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046

Abstract: A display device includes a display unit having pixels, a touch sensing unit including touch electrodes disposed on the display unit, and a touch driver configured to supply a touch driving signal to the plurality of touch electrodes and receive a touch sensing signal from the touch electrodes. The touch driver supplies a first touch driving signal having a first phase to one or more first touch electrodes, and supplies a second touch driving signal having a second phase opposite to the first phase to one or more second touch electrodes, at least a part of which is disposed across a specific point from the first touch electrodes. The touch driver receives a first touch sensing signal having the first phase from at least one of the first touch electrodes, and receives a second touch sensing signal having the second phase from at least one of the second touch electrodes.

公开(公告)号：US20200319735A1

公开(公告)日：2020-10-08

申请号：US16835784

申请日：2020-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Hui KIM ,  Ga Young KIM ,  Do Ik KIM ,  Sang Chul LEE ,  A Ra JO

IPC: G06F3/045

Abstract: The 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 a plurality of 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 plurality of first touch electrodes and the plurality of second touch electrodes.

公开(公告)号：US20190332212A1

公开(公告)日：2019-10-31

申请号：US16363345

申请日：2019-03-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JUNG HAK KIM ,  Do lk 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：US20180329576A1

公开(公告)日：2018-11-15

申请号：US15949585

申请日：2018-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Do Ik KIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06F2203/04111

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.

公开(公告)号：US20230333680A1

公开(公告)日：2023-10-19

申请号：US18211282

申请日：2023-06-18

Applicant: Samsung Display Co., Ltd.

Inventor： Ga Young KIM ,  Jang Hui KIM ,  A Ra JO

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/045

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F3/045 ,  G06F3/04164 ,  G06F2203/04106 ,  G06F3/0446 ,  G06F3/04144 ,  G06F2203/04105 ,  G06F3/0443 ,  G06F2203/04113 ,  G06F3/0414 ,  G06F3/0416 ,  G06F2203/04111

Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.

公开(公告)号：US20220137736A1

公开(公告)日：2022-05-05

申请号：US17546992

申请日：2021-12-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Hui KIM ,  Ga Young KIM ,  Do lk KIM ,  Sang Chul LEE ,  A Ra JO

IPC: G06F3/045

Abstract: The 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 a plurality of 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 plurality of first touch electrodes and the plurality of second touch electrodes.

公开(公告)号：US20210064187A1

公开(公告)日：2021-03-04

申请号：US16848694

申请日：2020-04-14

Applicant: Samsung Display Co., Ltd.

Inventor： Choon Hyop LEE ,  Kang Won LEE ,  Ga Young KIM ,  Jang Hui KIM ,  A Ra JO

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

Abstract: A sensing circuit includes: a plurality of sensor electrodes; a first capacitance between the sensor electrodes; a plurality of proximity sensing electrodes electrically isolated from the sensor electrodes; and a second capacitance between at least one of the sensor electrodes and the proximity sensing electrodes. A density of at least one of the proximity sensing electrodes is less than a density of at least one of the sensor electrodes.

公开(公告)号：US20240393894A1

公开(公告)日：2024-11-28

申请号：US18444763

申请日：2024-02-19

Applicant: Samsung Display Co., Ltd.

Inventor： Kyo Won KU ,  Jin A KANG ,  Ga Young KIM ,  Mi Young KIM ,  Sang Hyun LIM

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/046 ,  H02J50/05

Abstract: A display device includes a display panel including sub-pixels, a display panel driver configured to control the display panel, a touch panel including a touch sensor including a plurality of touch electrodes and a charger including a plurality of charge electrodes, and a touch panel driver configured to provide a first charge voltage having a first phase to N first charge electrodes among the charge electrodes in a first charge period, and provide the first charge voltage to M (M is different from N) second charge electrode among the charge electrodes in a second charge period.