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公开(公告)号：US20220291803A1
公开(公告)日：2022-09-15
申请号：US17827227
申请日：2022-05-27
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hyun LIM
IPC: G06F3/041 , G06F3/044 , G09G3/3225 , G09G5/12
Abstract: A display device according to an example embodiment includes a display portion displaying an image, and a sense portion that is disposed over one side of the display portion, and senses an external input, wherein the sense portion includes: at least one of first sense electrodes receiving a first sense signal that is changed in response to the external input, at least one of second sense electrodes that are disposed at a distance from the first sense electrodes, wherein the first sense electrodes are disposed between the second sense electrodes, and at least one of compensation electrode that are disposed spaced apart from and between the first sense electrodes, and to which a compensation signal is applied, wherein the compensation signal and the first sense signal are inverted in phase.
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公开(公告)号：US20210004120A1
公开(公告)日：2021-01-07
申请号：US17026333
申请日：2020-09-21
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik KIM , Sang Hyun LIM , Ga Young KIM , Young Sik KIM , Sang Chul LEE
Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
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公开(公告)号：US20180329555A1
公开(公告)日：2018-11-15
申请号：US15978355
申请日：2018-05-14
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik KIM , Ga Young KIM , Sang Hyun LIM , Young Sik KIM , Sang Chul LEE , Hwan Hee JEONG
IPC: G06F3/041 , H01L27/32 , G06F3/044 , G06F3/047 , G09G3/3208
Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.
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公开(公告)号：US20170168621A1
公开(公告)日：2017-06-15
申请号：US15374871
申请日：2016-12-09
Applicant: Samsung Display Co., Ltd.
Inventor： A Ra JO , Sang Hyun LIM , Chang Sub JUNG , Jae Woo CHOI
CPC classification number: G06F3/0412 , G06F3/044 , G06F2203/04103 , G06F2203/04105 , G06F2203/04107 , H01L27/3225 , H01L27/323 , H01L51/5237 , H01L51/5284 , H05K5/0017 , H05K5/0247 , H05K5/03 , H05K7/1427
Abstract: A display device may include a display panel, a window member provided above the display panel, a housing accommodating the display panel and the window member and including at least one protrusion on an inner surface thereof, and a pressure sensor including a first conductive layer provided on the at least one protrusion and a second conductive layer provided at a peripheral area of the first conductive layer to be spaced apart from the first conductive layer.
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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.
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Patent Agency Ranking
公开(公告)号：US20230409142A1
公开(公告)日：2023-12-21
申请号：US18093926
申请日：2023-01-06
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sang Hyun LIM
CPC classification number: G06F3/04166 , G06F3/0446
Abstract: A display device including: a display panel in which a plurality of pixels are arranged in an image display area; a touch sensing unit disposed on a surface of the display panel, wherein the touch sensing unit is configured to sense a touch of an electronic pen; a display driving circuit configured to drive the pixels; and a touch sensing circuit configured to generate touch coordinate data by detecting a touch position of the electronic pen, wherein the touch sensing circuit is configured to drive pen touch electrodes so that the electronic pen is electromagnetically charged, and to recognize a touch and a touch position of the electronic pen by detecting a variation of a pen touch sensing signal of the pen touch electrodes.
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公开(公告)号：US20220129129A1
公开(公告)日：2022-04-28
申请号：US17367417
申请日：2021-07-05
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hyun LIM
IPC: G06F3/041
Abstract: A display device includes a display part and a sensor part overlapping the display part. During a first period, sensors in a first area of the sensor part are configured to transmit a first uplink signal. During the first period, sensors in a second area of the sensor part are configured to transmit a first inversion signal with respect to the first uplink signal. During a second period after the first period, sensors in a third area of the sensor part are configured to transmit a second uplink signal. During the second period, sensors in a fourth area of the sensor part are configured to transmit a second inversion signal with respect to the second uplink signal. The first area at least partially overlaps the fourth area. The second area at least partially overlaps the third area.
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公开(公告)号：US20210318779A1
公开(公告)日：2021-10-14
申请号：US17030376
申请日：2020-09-24
Applicant: Samsung Display Co., Ltd.
Inventor： Gwang Bum KO , Ga Young KIM , Sang Hyun LIM
Abstract: A touch sensor includes: a sensing area including a first sensing area positioned in a center portion and a second sensing area positioned outwardly therefrom in an edge portion; first sensor electrodes disposed in the first sensing area; and second sensor electrodes disposed in the second sensing area, the second sensor electrodes being configured to be separately activated from the first sensor electrodes. The first sensor electrodes are drivable to detect a touch input generated in the first sensing area in a first mode and the second sensor electrodes are drivable to detect a touch input generated in the second sensing area in a second mode.
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公开(公告)号：US20190302962A1
公开(公告)日：2019-10-03
申请号：US16446717
申请日：2019-06-20
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik KIM , Sang Hyun LIM , Ga Young KIM , Young Sik KIM , Sang Chul LEE
Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
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公开(公告)号：US20180321793A1
公开(公告)日：2018-11-08
申请号：US15914281
申请日：2018-03-07
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik KIM , Sang Hyun LIM , Ga Young KIM , Young Sik KIM , Sang Chul LEE
CPC classification number: G06F3/0418 , G06F3/044 , G06F2203/04111
Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
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