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公开(公告)号：US20240370115A1
公开(公告)日：2024-11-07
申请号：US18508163
申请日：2023-11-13
Applicant: Samsung Display Co., Ltd.
Inventor： Keum Dong JUNG , Jang Hui KIM , Sang Hun PARK , Yong Sub SO , Da Eun YI , Bo Hwan LEE , Byeong Kyu JEON
Abstract: A touch device includes a touch panel including touch electrodes, and a touch driver adjacent to the touch panel, configured to sense a touch of a user, configured to transmit uplink signals including position information of the touch electrodes to an active pen through at least some of the touch electrodes in a first touch period, and configured to receive a sensing signal including position information of the active pen, which is calculated using the uplink signals, from the active pen in a second touch period after the first touch period.
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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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公开(公告)号：US20220367576A1
公开(公告)日：2022-11-17
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
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：US20220365629A1
公开(公告)日：2022-11-17
申请号：US17875909
申请日：2022-07-28
Applicant: Samsung Display Co., Ltd.
Inventor： Ga Young Ga Young , Do Ik KIM , Jang Hui KIM
Abstract: Provided are a touch sensor and a display device. The touch sensor includes a base layer; first electrode members arranged on the base layer in a first direction and spaced apart from one another in a second direction intersecting the first direction, each of the first electrode members including a first opening and a plurality of first touch electrodes electrically connected to one another in the first direction; second electrode members arranged on the base layer in the second direction and spaced apart from one another in the first direction, each of the second electrode members including a second opening and a plurality of second touch electrodes electrically connected to one another in the second direction intersecting the first direction; a first strain gauge including a portion located in the first opening and disposed in a first electrode row among electrode rows of the first electrode members; a second strain gauge including a portion located in the second opening and disposed in a first row among rows of the second touch electrodes; a first signal line connected to one end of the first strain gauge; a second signal line connected to another end of the first strain gauge and spaced apart from the first signal line; a third signal line connected to one end of the second strain gauge and the second signal line; and a fourth signal line connected to another end of the second strain gauge and spaced apart from the third signal line.
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Patent Agency Ranking
公开(公告)号：US20210149517A1
公开(公告)日：2021-05-20
申请号：US17161576
申请日：2021-01-28
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：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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