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公开(公告)号：US20240393904A1
公开(公告)日：2024-11-28
申请号：US18794658
申请日：2024-08-05
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： HYUNGBAE KIM , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM
Abstract: A display device includes a display panel, and an input sensing part disposed on the display panel and in which an active region and a non-active region around the active region are defined. The input sensing part includes a plurality of sensing electrodes dispose in the active region, a plurality of sensing lines electrically connected to the sensing electrodes and disposed in the non-active region, and a guard line, a ground line, and an electromagnetic attenuating line spaced apart from the sensing lines and disposed in the non-active region. The guard line, the ground line, and the electromagnetic attenuating line are disposed at an outside of the sensing lines.
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公开(公告)号：US20240053392A1
公开(公告)日：2024-02-15
申请号：US18340678
申请日：2023-06-23
Applicant: Samsung Display Co., Ltd.
Inventor： EUNSOL SEO , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , EUNGKWAN LEE , JAEWOO CHOI
CPC classification number: G01R27/2605 , G06F3/04166 , G06F3/0446 , G06F3/0443
Abstract: In a method for testing an electronic device, the method includes: providing an electronic device including a display layer and a sensor layer on the display layer and configured to operate at a touch drive frequency, the sensor layer including a plurality of first electrodes and a plurality of second electrodes insulatively intersecting the plurality of first electrodes; providing a test signal having a test frequency higher than the touch drive frequency to the plurality of first electrodes; measuring mutual capacitance with the plurality of first electrodes through the plurality of second electrodes; and determining whether or not the sensor layer is defective, based on the mutual capacitance.
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公开(公告)号：US20230305658A1
公开(公告)日：2023-09-28
申请号：US18095906
申请日：2023-01-11
Applicant: Samsung Display Co., Ltd.
Inventor： HYUNGBAE KIM , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , JAEHYUN PARK , JIYEONG LEE
CPC classification number: G06F3/0418 , G06F3/0446 , G06F3/04164 , H10K59/40 , G06F3/0412 , G06F2203/04111
Abstract: Provided is a display device comprising a display panel, an input sensor including a first sensing area having a first sub-area and a second sub-area, and a first sensor controller configured to drive the first sensing area. Here, the input sensor includes first sensing electrodes disposed in the first sub-area to receive a first transmission signal from the first sensor controller, second sensing electrodes disposed in the first sub-area and intersected with the first sensing electrodes, third sensing electrodes disposed in the second sub-area to receive a second transmission signal having a phase inverted from that of the first transmission signal from the first sensor controller, and fourth sensing electrodes disposed in the second sub-area and intersected with the third sensing electrodes.
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公开(公告)号：US20230185402A1
公开(公告)日：2023-06-15
申请号：US17955794
申请日：2022-09-29
Applicant: Samsung Display Co., Ltd.
Inventor： JIYEONG LEE , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , HYUNGBAE KIM , JAEHYUN PARK
CPC classification number: G06F3/04166 , G06F3/0446 , G06F3/0412 , H01L27/3244
Abstract: A display device includes a display panel that displays an image, an input sensor that senses an external input, and a sensing controller that controls the driving of the input sensor. The input sensor includes a plurality of scanning electrodes and a plurality of sensing electrodes. The sensing controller simultaneously transmits input scanning signals to at least two scanning electrodes of the plurality of scanning electrodes during a group scanning period. The group scanning period includes a plurality of scanning periods. The sensing controller transmits a compensating signal having a phase different from a phase of at least one of the input scanning signals to at least one sensing electrode of the plurality of sensing electrodes during at least one scanning period of the plurality of scanning periods.
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公开(公告)号：US20220326833A1
公开(公告)日：2022-10-13
申请号：US17583729
申请日：2022-01-25
Applicant: Samsung Display Co., Ltd.
Inventor： HYUN-WOOK CHO , MIN-HONG KIM , TAEJOON KIM , JUNGMOK PARK
Abstract: Disclosed is a display device including a display panel, an input sensing layer, a display controller that receives a vertical synchronization signal and a horizontal synchronization signal and controls an operation of the display panel depending on the vertical synchronization signal and the horizontal synchronization signal, and a sensing controller that receives the vertical synchronization signal and the horizontal synchronization signal and generates a driving control signal for driving the input sensing layer. One frame of the vertical synchronization signal includes a first vertical section and a second vertical section in which the display controller transmits a data signal to the display panel. The sensing controller determines an operating frequency of the driving control signal based on a horizontal synchronization signal, which is included in a first horizontal section overlapping with the first vertical section, in the horizontal synchronization signal.
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Patent Agency Ranking
公开(公告)号：US20200064958A1
公开(公告)日：2020-02-27
申请号：US16672892
申请日：2019-11-04
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： SANGHYUN JUN , HWAN-HEE JEONG , KICHEOL KIM , JAEHYUN LEE , HYUN-WOOK CHO
Abstract: An electronic device includes a first electrode, a second electrode, and a third electrode. The first electrode includes a first boundary side extending in a direction. The second electrode includes a second boundary side extending in the direction. The third electrode is disposed between and spaced apart from the first electrode and the second electrode. The third electrode includes a first side facing the first boundary side and a second side facing the second boundary. The first side and the second side have shapes that are asymmetric to each other with respect to a center axis extending in the direction.
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公开(公告)号：US20240028173A1
公开(公告)日：2024-01-25
申请号：US18478583
申请日：2023-09-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： HYUNGBAE KIM , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , JAEHYUN PARK , JIYEONG LEE
CPC classification number: G06F3/0446 , G06F3/0412
Abstract: A display device includes a display panel and an input sensing panel. The input sensing panel includes pluralities of first and second sensing electrodes and electrostatic induction patterns, each of which is connected to a sensing electrode from one of the pluralities of sensing electrodes and overlaps another sensing electrode from the other one of the pluralities of sensing electrodes. The input sensing panel includes a first area where deviations of mutual capacitances between the first and second sensing electrodes are small and a second area where the deviations are large. The electrostatic induction patterns include first electrostatic induction patterns disposed in the first area and second electrostatic induction patterns disposed in the second area, the second electrostatic induction patterns having a different area from the first electrostatic induction patterns, or the number of second electrostatic induction patterns being different from the number of first electrostatic induction patterns.
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公开(公告)号：US20230058621A1
公开(公告)日：2023-02-23
申请号：US17730523
申请日：2022-04-27
Applicant: Samsung Display Co., Ltd.
Inventor： MIN-HONG KIM , HYUN-WOOK CHO , TAEJOON KIM , JUNGMOK PARK
Abstract: Disclosed is a display device including a display panel, an input sensing layer, a display controller that drives the display panel and outputs a synchronization signal including information about an operating frequency of the display panel, and a sensing controller that receives the synchronization signal and determines an operating frequency of the input sensing layer based on the synchronization signal. A driving frame of the display panel includes a first section during which an image is not displayed and a second section during which an image is displayed. During the driving frame, the display controller transmits a data signal for displaying an image to the display panel. The synchronization signal includes a first pulse corresponding to a timing of the first section, and a second pulse corresponding to a timing of the second section.
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公开(公告)号：US20220137743A1
公开(公告)日：2022-05-05
申请号：US17345796
申请日：2021-06-11
Applicant: Samsung Display Co., Ltd.
Inventor： SANGHYUN LIM , HYUN-WOOK CHO
IPC: G06F3/041 , G09G3/3266 , G09G3/3275
Abstract: A display device includes: a display layer; a sensor layer on the display layer; a sensor driving part to provide a transmission signal to the sensor layer; and a display driving part to drive the display layer. The display layer includes: a plurality of pixels; first scan lines electrically connected to a first group of pixels; second scan lines electrically connected to a second group of pixels; and data lines electrically connected to the plurality of pixels. The display driving part is to drive the first scan lines, the second scan lines, and the data lines, and to alternately provide a pixel data signal and a compensation signal to data lines corresponding to the first group of pixels and data lines corresponding to the second group of pixels, the compensation signal being a signal that is complementary to at least one of the pixel data signal or the transmission signal.
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20.发明申请公开(公告)号：US20220107703A1
公开(公告)日：2022-04-07
申请号：US17477967
申请日：2021-09-17
Applicant: Samsung Display Co., Ltd.
Inventor： JUNSEONG LEE , BOGEUN YUK , MIN-HONG KIM , TAEJOON KIM , EUNGKWAN LEE , HYUN-WOOK CHO
Abstract: A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.
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