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公开(公告)号：US11573655B2
公开(公告)日：2023-02-07
申请号：US17248878
申请日：2021-02-11
Applicant: Samsung Display Co., Ltd.
Inventor： Jang Hui Kim , Ga Young Kim , Jung Mok Park , A Ra Jo
IPC: G06F3/041
Abstract: A display device, includes: a display panel having short sides and long sides; and a touch sensor on the display panel and including a sensing area and a non-sensing area around the sensing area, wherein the touch sensor includes: a first touch electrode unit including a plurality of first touch electrodes in the sensing area, arranged in a direction in which the short sides of the display panel extend, and each including a first opening; a second touch electrode unit including a plurality of second touch electrodes in the sensing area, arranged in a direction in which the long sides of the display panel extend, and each including a second opening; and a pressure sensor including a strain gauge, at least a part of the strain gauge being located in the sensing area.
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公开(公告)号：US11314366B2
公开(公告)日：2022-04-26
申请号：US17073761
申请日：2020-10-19
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jang Hui Kim , Hyung Chul Kim , A Ra Jo
Abstract: An input sensing device includes a plurality of first sensing electrodes having a plurality of first sensor units extending in a first direction. A plurality of second sensing electrodes has a plurality of second sensor units extending in a second direction different from the first direction. A first strain gauge includes a first force electrode located proximate to a first electrode of the plurality of first sensing electrodes. A second force electrode is located proximate to a second electrode of the plurality of first sensing electrodes. A first connecting electrode connects to both of the first force electrode and the second force electrode.
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公开(公告)号：US10936134B2
公开(公告)日：2021-03-02
申请号：US16401080
申请日：2019-05-01
Applicant: Samsung Display Co., Ltd.
Inventor： Jang Hui Kim , Ga Young Kim , A Ra Jo
Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.
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公开(公告)号：US10908723B2
公开(公告)日：2021-02-02
申请号：US16560318
申请日：2019-09-04
Applicant: Samsung Display Co., Ltd.
Inventor： Ga Young Kim , Jang Hui Kim , A Ra Jo
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：US20190354241A1
公开(公告)日：2019-11-21
申请号：US16401080
申请日：2019-05-01
Applicant: Samsung Display Co., Ltd.
Inventor： Jang Hui Kim , Ga Young Kim , A Ra Jo
Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.
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Patent Agency Ranking
公开(公告)号：US12287935B2
公开(公告)日：2025-04-29
申请号：US18639005
申请日：2024-04-18
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Choon Hyop Lee , Jang Hui Kim , Jae Won Kim , In Nam Lee
Abstract: A touch sensor including: a touch sensing area including driving electrodes and sensing electrodes; a driving signal generator which determines phases of driving signals based on a reference code and supplies the driving signals to the sensing electrodes, wherein the driving signals are sine waves; and a touch processor which receives sensing signals according to the driving signals from the sensing electrodes and determines a touch position based on the sensing signals and the reference code, wherein the driving signal generator controls the phases of the driving signals by updating the reference code at a predetermined time point.
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公开(公告)号：US11903296B2
公开(公告)日：2024-02-13
申请号：US17985913
申请日：2022-11-14
Applicant: Samsung Display Co., Ltd.
Inventor： In Nam Lee , Jang Hui Kim , Choon Hyop Lee
IPC: H10K59/40 , G06F3/041 , G06F3/044 , H10K50/844
CPC classification number: H10K59/40 , G06F3/0412 , G06F3/0443 , G06F3/04184 , H10K50/844 , G06F2203/04112
Abstract: A display device including a display panel including pixels that emit light on a frame basis. An input sensing unit includes driving electrodes and sensing electrodes. A driving signal generator is configured to provide driving signals to the driving electrodes. Analog front-ends are configured to receive sensing signals depending on the driving signals from the sensing electrodes. A signal processor is configured to detect touch input, based on differential output values of the analog front-ends. The driving signal generator provides the driving signals to the driving electrodes while avoiding a period in which a pulse of a vertical synchronization signal defining start of the frame is generated.
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公开(公告)号：US11903294B2
公开(公告)日：2024-02-13
申请号：US17863705
申请日：2022-07-13
Applicant: Samsung Display Co., Ltd.
Inventor： Kang Won Lee , Do Ik Kim , Choon Hyop Lee , Jang Hui Kim , Sang Chul Lee
CPC classification number: H10K59/40 , G06F3/0412 , G06F3/0445
Abstract: A touch detecting unit comprises first sensor electrodes arranged in a first direction and electrically connected with one another; second sensor electrodes arranged in a second direction crossing the first direction, and electrically connected with one another, the second sensor electrodes electrically separated from the first sensor electrodes, and third sensor electrodes electrically separated from the first sensor electrodes and the second sensor electrodes. Amounts of change in first capacitances between the first sensor electrodes and the second sensor electrodes are detected in a first mode. Amounts of change in the first capacitances and amounts of change in a second capacitance between the first sensor electrodes and the third sensor electrodes are detected in a second mode.
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公开(公告)号：US11899878B2
公开(公告)日：2024-02-13
申请号：US18148253
申请日：2022-12-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Choon Hyop Lee , Jang Hui Kim , Jae Won Kim , In Nam Lee
CPC classification number: G06F3/04166 , G06F3/044 , G06F3/04164 , H03M1/18
Abstract: An input sensing device includes driving electrodes and sensing electrodes, and an analog front-end which processes sensing signals from the sensing electrodes to output a differential output value. The analog front-end includes a first charge amplifier which differentially amplifies first and second sensing signals from two sensing electrodes to first and second input terminals, thus outputting first and second differential signals through first and second output terminals, a second charge amplifier which differentially amplifies the first and second differential signals, thus outputting third and fourth differential signals, a first demodulation circuit which filters the first and second differential signals in a first mode and filters each of the third and fourth differential signals in a second mode, and a first analog-to-digital converter which outputs a first sensing value based on at least one output signal of the first demodulation circuit.
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公开(公告)号：US11681405B2
公开(公告)日：2023-06-20
申请号：US17963982
申请日：2022-10-11
Applicant: Samsung Display Co., Ltd.
Inventor： Jang Hui Kim , Ga Young Kim , A Ra Jo
CPC classification number: G06F3/0446 , G06F3/0412 , G06F3/0418 , G06F2203/04105
Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.
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