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公开(公告)号：US11630546B2
公开(公告)日：2023-04-18
申请号：US17816716
申请日：2022-08-01
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sanghun Park , Soowon Kim , Jihoon Kim
Abstract: A display device, includes: a base substrate; a display element layer on the base substrate, the display element layer including a driving electrode; an insulation layer on the display element layer, the insulation layer defining an active region and a peripheral region adjacent to the active region; an input sensing layer on the insulation layer, the input sensing layer including a sensing electrode that overlaps the active region and a compensation electrode that overlaps the peripheral region, the sensing electrode and the driving electrode forming a parasitic capacitor; and a detection control circuit electrically connected through an output node to the sensing electrode and the compensation electrode, wherein the detection control circuit is configured to control a capacitance of the parasitic capacitor using a first offset capacitor, the first offset capacitor being formed by the compensation electrode.
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公开(公告)号：US10942597B2
公开(公告)日：2021-03-09
申请号：US16503741
申请日：2019-07-05
Inventor： Deog-Kyoon Jeong , Youngmin Park , Sangjin Pak , Jiheon Park , Jonghyun Oh , Sanghun Park
IPC: G06F3/041
Abstract: A display apparatus includes a display panel, a touch sensing unit, and a touch driving circuit. The touch sensing unit includes a transmission touch line. The touch driving circuit provides a touch driving signal to the transmission touch line. The touch driving circuit may include a switch group and a control switch group. The switch group may include a plurality of switch devices, each of which has one end connected to the transmission touch line. The control switch group may be connected to the other end of at least a portion of the switch devices, include a plurality of control switch devices and a capacitor device, and receive a driving voltage and a ground voltage. The touch driving signal has N voltage levels, where N is a natural number of 3 or more.
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公开(公告)号：US12249264B2
公开(公告)日：2025-03-11
申请号：US18446195
申请日：2023-08-08
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yongsub So , Keumdong Jung , Sanghun Park , Da Eun Yi , Bo-Hwan Lee , Byeongkyu Jeon
IPC: G09G3/02
Abstract: A display device includes a display panel, an input sensor disposed on the display panel and sensing an input during a sensing frame period, a display controller receiving a vertical synchronization signal and a horizontal synchronization signal and controlling driving of the display panel in response to the vertical synchronization signal and the horizontal synchronization signal, and a sensor controller providing a transmission signal including a plurality of sampling periods to the input sensor. The display controller provides frequency information of a display frame period to the sensor controller using at least one of the vertical synchronization signal and the horizontal synchronization signal, and the sensor controller controls the number of the sampling periods of the sensing frame period based on the frequency information.
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Patent Agency Ranking
公开(公告)号：US11579716B2
公开(公告)日：2023-02-14
申请号：US17449180
申请日：2021-09-28
Applicant: Samsung Display Co., Ltd.
Inventor： Yongsub So , Sanghun Park
Abstract: An electronic device including: a display layer including an active area and a peripheral area adjacent to the active area, wherein the active area includes a first area in which an image is displayed; a sensor layer disposed on the display layer and including a plurality of sensing electrodes; a controller configured to generate a change signal in response to a change in a surface area of the first area; a display driver configured to transmit a horizontal synchronization signal to the display layer in response to the change signal; and a sensing driver configured to control at least some of the plurality of sensing electrodes in response to the horizontal synchronization signal.
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公开(公告)号：US11416107B2
公开(公告)日：2022-08-16
申请号：US17194724
申请日：2021-03-08
Applicant: Samsung Display Co., Ltd.
Inventor： Sanghun Park , Soowon Kim , Jihoon Kim
Abstract: A display device, includes: a base substrate; a display element layer on the base substrate, the display element layer including a driving electrode; an insulation layer on the display element layer, the insulation layer defining an active region and a peripheral region adjacent to the active region; an input sensing layer on the insulation layer, the input sensing layer including a sensing electrode that overlaps the active region and a compensation electrode that overlaps the peripheral region, the sensing electrode and the driving electrode forming a parasitic capacitor; and a detection control circuit electrically connected through an output node to the sensing electrode and the compensation electrode, wherein the detection control circuit is configured to control a capacitance of the parasitic capacitor using a first offset capacitor, the first offset capacitor being formed by the compensation electrode.
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公开(公告)号：US12193306B2
公开(公告)日：2025-01-07
申请号：US17582311
申请日：2022-01-24
Applicant: Samsung Display Co., Ltd.
Inventor： Sanghun Park , Jihoon Kim , Yongsub So
IPC: H10K59/40 , G06F3/041 , G06F3/044 , H10K50/844 , H10K59/131
Abstract: A display device includes a display panel configured to display an image. The display panel includes an electrode layer. An input sensing layer is disposed on the display panel. The input sensing layer includes a plurality of sensing electrodes including a first sensing electrode and a second sensing electrode. A plurality of signal lines is electrically connected to the plurality of sensing electrodes. The plurality of signal lines includes a first signal line electrically connected to the first sensing electrode and a second signal line electrically connected to the second sensing electrode. The first signal line has a length different from a length of the second signal line. A distance between the first signal line and the electrode layer is different from a distance between the second signal line and the electrode layer.
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公开(公告)号：US20240118776A1
公开(公告)日：2024-04-11
申请号：US18349099
申请日：2023-07-07
Applicant: Samsung Display Co., Ltd.
Inventor： DA EUN YI , Sanghun Park , Yongsub So , Bo-Hwan Lee , Byeongkyu Jeon , Keumdong Jung
CPC classification number: G06F3/0446 , G06F3/0416
Abstract: An electronic device includes a sensor in which a sensing area and a peripheral area proximate to the sensing area are defined, and a sensor driver driving the sensor. The sensor includes first electrodes disposed in the sensing area and arranged along a first direction, and second electrodes arranged along a second direction intersecting the first direction. A boundary extending along the second direction is defined in the sensing area. The sensor driver simultaneously outputs a plurality of boundary transmit signals to a plurality of boundary electrodes disposed in a boundary area including the boundary among the plurality of first electrodes.
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公开(公告)号：US11681391B2
公开(公告)日：2023-06-20
申请号：US17401695
申请日：2021-08-13
Applicant: Samsung Display Co., Ltd.
Inventor： Il Ho Lee , Sanghun Park , Jihoon Kim , Yongsub So
CPC classification number: G06F3/04164 , G06F3/0412 , G06F3/0446
Abstract: A display device includes a display panel configured to display an image, an input sensor disposed on the display panel to sense an input and including a first area and a second area, and a sensor controller connected to the input sensor. The input sensor includes first sensing electrodes disposed in the first area, second sensing electrodes disposed in the second area, and a boundary sensing electrode disposed to overlap a boundary between the first and second areas. The boundary sensing electrode forms a mutual capacitor with one or more of the first sensing electrodes that are adjacent to the boundary sensing electrode, and forms a mutual capacitor with one or more of the second sensing electrodes that are adjacent to the boundary sensing electrode.
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