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公开(公告)号：US11099699B2
公开(公告)日：2021-08-24
申请号：US16870443
申请日：2020-05-08
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik Kim , Sang Hyun Lim , Ga Young Kim
Abstract: A touch sensor including a substrate including an active area and a non-active area, a plurality of first electrodes extending in first direction on the active area, a plurality of second electrodes extending in a second direction crossing the first direction on the active area, a plurality of third electrodes including electrode portions disposed in the first electrodes, respectively, being separated from the first electrodes, and extending in the first direction on the active area, and a sensing circuit including a plurality of signal receivers receiving sensing signals from the first electrodes, respectively, in which each of the signal receivers includes first and second input terminals connected to a pair of first and third electrodes corresponding to each other, respectively, and outputs a signal corresponding to a voltage difference between the first and second input terminals.
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公开(公告)号：US20200285339A1
公开(公告)日：2020-09-10
申请号：US16809061
申请日：2020-03-04
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik Kim , Jang-Hui Kim , Ga Young Kim , A Ra Jo
Abstract: A touch sensor and a display device, in which the touch sensor includes: a base layer including a first region which is a flat portion, and a second region which is a curved portion extending from the first region; touch electrodes arranged on the base layer and each including an opening; a strain gauge disposed in the first region; and a temperature compensation pattern disposed in the second region.
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公开(公告)号：US20200272270A1
公开(公告)日：2020-08-27
申请号：US16870443
申请日：2020-05-08
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik Kim , Sang Hyun Lim , Ga Young Kim
Abstract: A touch sensor including a substrate including an active area and a non-active area, a plurality of first electrodes extending in first direction on the active area, a plurality of second electrodes extending in a second direction crossing the first direction on the active area, a plurality of third electrodes including electrode portions disposed in the first electrodes, respectively, being separated from the first electrodes, and extending in the first direction on the active area, and a sensing circuit including a plurality of signal receivers receiving sensing signals from the first electrodes, respectively, in which each of the signal receivers includes first and second input terminals connected to a pair of first and third electrodes corresponding to each other, respectively, and outputs a signal corresponding to a voltage difference between the first and second input terminals.
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公开(公告)号：US12282625B2
公开(公告)日：2025-04-22
申请号：US18595419
申请日：2024-03-05
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hyun Lim , Ga Young Kim , Young Min Park , Hyun Jee Jeon
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.
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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
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.
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Patent Agency Ranking
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.
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公开(公告)号：US12086340B2
公开(公告)日：2024-09-10
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
CPC classification number: G06F3/0412 , G06F3/044 , G06F3/045 , G06F3/0414 , G06F3/04144 , G06F3/0416 , G06F3/04164 , G06F3/0443 , G06F3/0446 , G06F2203/04105 , G06F2203/04106 , G06F2203/04111 , G06F2203/04113
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.
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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.
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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
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.
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公开(公告)号：US11768571B2
公开(公告)日：2023-09-26
申请号：US17546992
申请日：2021-12-09
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: 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.
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