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公开(公告)号：US10338747B2
公开(公告)日：2019-07-02
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
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：US12153758B2
公开(公告)日：2024-11-26
申请号：US18446679
申请日：2023-08-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyun Jee Jeon , Sang Hyun Lim
Abstract: A display device includes a display layer, a touch layer including a plurality of driving electrodes and a plurality of sensing electrodes, and a touch driving circuit supplying touch driving signals to the plurality of driving electrodes, receiving touch signals from the plurality of sensing electrodes, and generating a touch sensing signal including first and second touch sensing signals. The touch driving circuit receives one of the touch signals, detects first sensed voltages of the one touch signal every first cycle of the first touch sensing signal to calculate a phase delay amount of the one touch signal, delays a phase of the second touch sensing signal based on the phase delay amount, calculates second sensed voltages of the one touch signal every second cycle of the second touch sensing signal different from the first cycle, and recognizes a touch input based on the second sensed voltages.
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公开(公告)号：US11947755B2
公开(公告)日：2024-04-02
申请号：US17545452
申请日：2021-12-08
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hyun Lim , Ga Young Kim , Young Min Park , Hyun Jee Jeon
CPC classification number: G06F3/04166 , G06F3/0412 , G06F3/04164 , G06F3/0446 , G06F3/046
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：US11886661B2
公开(公告)日：2024-01-30
申请号：US18077257
申请日：2022-12-08
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hyun Lim
CPC classification number: G06F3/04166 , G06F3/0412 , G06F3/0446 , G09G3/3225 , G09G5/12 , G06F3/0443 , G06F3/0445 , G09G2320/0233 , H10K59/40
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：US20230325019A1
公开(公告)日：2023-10-12
申请号：US18209444
申请日：2023-06-13
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 , G06F3/047 , G06F3/044 , G09G3/3208
CPC classification number: G06F3/0412 , G06F3/0418 , G06F3/047 , G06F3/0446 , H10K59/40 , G06F3/04182 , G06F3/044 , G09G3/3208 , G06F3/0443 , G06F2203/04111 , G06F2203/04112
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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Patent Agency Ranking
公开(公告)号：US20220342461A1
公开(公告)日：2022-10-27
申请号：US17499924
申请日：2021-10-13
Applicant: Samsung Display Co., Ltd.
Inventor： Hyun Jee Jeon , Ga Young Kim , Young Min Park , Sang Hyun Lim
Abstract: A display device is provided. The display device comprises a display panel comprising an active area for displaying images on a front surface and a non-active area around the active area, and a flexible circuit board comprising at least one conductive line extending from one end to an opposite end, wherein the flexible circuit board is disposed on a rear surface of the display panel to have a loop shape surrounding more than half of at least a part of the active area.
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公开(公告)号：US11061508B2
公开(公告)日：2021-07-13
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：US10282010B2
公开(公告)日：2019-05-07
申请号：US14738654
申请日：2015-06-12
Applicant: Samsung Display Co., Ltd.
Inventor： Jae Woo Choi , Sang Hyun Lim , Chang Sub Jung , A Ra Jo , Eun Gil Choi
Abstract: A display device includes: a display panel including an upper electrode and an encapsulation layer provided on the upper electrode; a touch panel including a first touch electrode and a second touch electrode each facing the upper electrode and positioned between the display panel and a cover window covering the display panel, the first touch electrode being separated from the second touch electrode; an elastic layer provided on the display panel and deforming in response to an applied pressure from a touch; and a touch sensor programmed to detect an applied pressure from a change in gaps between the first and second touch electrodes and the upper electrode due to the applied pressure, and to detect a capacitance between the first touch electrode and the second touch electrode caused by the touch, so as to sense a position of the touch.
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公开(公告)号：US12207408B2
公开(公告)日：2025-01-21
申请号：US17499924
申请日：2021-10-13
Applicant: Samsung Display Co., Ltd.
Inventor： Hyun Jee Jeon , Ga Young Kim , Young Min Park , Sang Hyun Lim
Abstract: A display device is provided. The display device comprises a display panel comprising an active area for displaying images on a front surface and a non-active area around the active area, and a flexible circuit board comprising at least one conductive line extending from one end to an opposite end, wherein the flexible circuit board is disposed on a rear surface of the display panel to have a loop shape surrounding more than half of at least a part of the active area.
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公开(公告)号：US12159013B2
公开(公告)日：2024-12-03
申请号：US18099268
申请日：2023-01-20
Applicant: Samsung Display Co., Ltd.
Inventor： Hyun Jee Jeon , Sang Hyun Lim
IPC: G06F3/044 , G06F3/041 , H10K59/40 , H10K59/80 , G09G3/3233
Abstract: A touch sensor includes first sensor patterns, second sensor patterns, a conductive line, and a temperature sensing electrode set. The first sensor patterns are electrically connected in a first direction. The second sensor patterns are electrically insulated from first sensor patterns and are electrically connected in a second direction different from the first direction. The conductive line is electrically connected to at least one of the first sensor patterns or at least one of the second sensor patterns. The temperature sensing electrode set is positioned between two of the first sensor patterns, is positioned between two of the second sensor patterns, or is positioned between the conductive line and at least one of the first sensor patterns and the second sensor patterns. The temperature sensing electrode set includes a first electrode and a second electrode spaced from each other.
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