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公开(公告)号：US20220326813A1
公开(公告)日：2022-10-13
申请号：US17850892
申请日：2022-06-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Choon Hyop LEE , Kang Won LEE , Ga Young KIM , Jang Hui KIM , A Ra JO
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.
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公开(公告)号：US20210263630A1
公开(公告)日：2021-08-26
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：US20250053264A1
公开(公告)日：2025-02-13
申请号：US18596999
申请日：2024-03-06
Applicant: Samsung Display Co., Ltd.
Inventor： Keum Dong JUNG , Jang Hui KIM , Ji Hoon KIM
Abstract: A touch system may include a touch array including touch electrodes, a touch driver configured to apply touch driving signals including different codes to the touch electrodes to thereby transmit uplink signals to objects adjacent to the touch array, at least one sub-host connected to at least one object among the objects through a communication channel, and configured to receive, from the at least one object, position information corresponding to the at least one object through the communication channel, and a main host configured to receive the position information corresponding to the at least one object through the at least one sub-host.
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公开(公告)号：US20240264697A1
公开(公告)日：2024-08-08
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
CPC classification number: G06F3/04166 , G06F3/0418 , G06F3/0446 , G09G3/32
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：US20230136412A1
公开(公告)日：2023-05-04
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
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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Patent Agency Ranking
公开(公告)号：US20210005677A1
公开(公告)日：2021-01-07
申请号：US16895768
申请日：2020-06-08
Applicant: Samsung Display Co., Ltd.
Inventor： Kang Won LEE , Do Ik KIM , Choon Hyop LEE , Jang Hui KIM , Sang Chul LEE
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：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.
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公开(公告)号：US20250077021A1
公开(公告)日：2025-03-06
申请号：US18585956
申请日：2024-02-23
Applicant: Samsung Display Co., LTD.
Inventor： Jang Hui KIM , Ji Hoon KIM , Keum Dong JUNG
Abstract: A touch module includes: a touch array including: a first electrode group including touch electrodes extending in a first direction, and located along a second direction crossing the first direction; and a second electrode group including touch electrodes extending in the second direction, and located along the first direction; and a touch driver to output uplink signals through each of the first electrode group and the second electrode group to an external device adjacent to the touch array, the external device to calculate position information based on the uplink signals. The touch driver is to output the uplink signals by applying touch driving signals to some of the touch electrodes of the first touch electrode group, and at least one synchronization signal to others of the touch electrodes of the first touch electrode group, and at least some of the touch driving signals are synchronized with the synchronization signal.
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公开(公告)号：US20240427454A1
公开(公告)日：2024-12-26
申请号：US18392847
申请日：2023-12-21
Applicant: Samsung Display Co., LTD.
Inventor： Choon Hyop LEE , Jang Hui KIM , In Nam LEE
Abstract: A sensor device includes: first sensors connected to first sensor lines; second sensors connected to second sensor lines, the second sensors intersecting the first sensors; a sensor transmitter connected to the first sensors through the first sensor lines, the sensor transmitter configured to supply touch driving signals to the first sensors during a touch sensing period; and a sensor receiver connected to the second sensors through the second sensor lines, the sensor receiver configured to receive touch sensing signals from the second sensors during the touch sensing period, wherein the sensor receiver includes a plurality of analog front-ends, and wherein each of the plurality of analog front-ends is connected to at least one of the second sensor lines and at least one of the first sensor lines.
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公开(公告)号：US20240329699A1
公开(公告)日：2024-10-03
申请号：US18739302
申请日：2024-06-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyun Jae LEE , Jang Hui KIM , Kang Won LEE , Sang Chul LEE
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.
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