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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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3.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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公开(公告)号：US20220011918A1
公开(公告)日：2022-01-13
申请号：US17242717
申请日：2021-04-28
Applicant: Samsung Display Co., Ltd.
Inventor： MIN-HONG KIM , HYUN-WOOK CHO , TAEJOON KIM , JAEHYUN PARK , JUNGMOK PARK , BOGEUN YUK
Abstract: A circuit board includes a base substrate, and a connection structure disposed on the base substrate, and connected to the base substrate by an accessing part. The connection structure includes a first connection electrode, a second connection electrode disposed in a same layer as the first connection electrode, a third connection electrode connected to the first connection electrode on the first connection electrode, and a fourth connection electrode connected to the second connection electrode on the second connection electrode, and disposed in a same layer as the third connection electrode.
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公开(公告)号：US20250165100A1
公开(公告)日：2025-05-22
申请号：US19007554
申请日：2025-01-02
Applicant: Samsung Display Co., Ltd.
Inventor： HYUNGBAE KIM , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , JAEHYUN PARK , JIYEONG LEE
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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Patent Agency Ranking
公开(公告)号：US20250138070A1
公开(公告)日：2025-05-01
申请号：US19012708
申请日：2025-01-07
Applicant: Samsung Display Co., Ltd.
Inventor： EUNSOL SEO , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , EUNGKWAN LEE , JAEWOO CHOI
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：US20240288966A1
公开(公告)日：2024-08-29
申请号：US18397060
申请日：2023-12-27
Applicant: Samsung Display Co., Ltd.
Inventor： YERIN OH , TAEJOON KIM , JINWOO PARK , SEUNGROK LEE , IL HO LEE , WANKEE JUN
CPC classification number: G06F3/04166 , G06F3/0446
Abstract: An electronic device including: a display layer; a sensor layer disposed on the display layer; a memory configured to store first sensitivity values and first differential sensitivity values; and a sensor driver configured to calculate second sensitivity values from a plurality of nodes and to calculate second differential sensitivity values, wherein the sensor driver is configured to: calculate difference values between the first differential sensitivity values and the second differential sensitivity values; calculate a first average value of a first row or column of values among the difference values; and calculate a second average value of remaining values among the difference values, wherein the remaining values were not used in the first average value calculation, and wherein the sensor driver determines whether to update a baseline, based on the first average value and the second average value.
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公开(公告)号：US20230316968A1
公开(公告)日：2023-10-05
申请号：US18150931
申请日：2023-01-06
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： MIN-HONG KIM , TAEJOON KIM , JUNGMOK PARK , BOGEUN YUK , HYUN-WOOK CHO
IPC: G09G3/00
CPC classification number: G09G3/006 , G09G2330/12
Abstract: Disclosed is an apparatus for inspecting a defect of a display panel. The apparatus for inspecting includes the display panel that displays an image, an input sensor that is disposed on the display panel and senses an input applied from outside, a sensor driving part that drives the input sensor, and an inspection part that is connected with the sensor driving part, sets a frequency of the input sensor to an inspection frequency, and detects the defect of the display panel based on a change in a jitter occurring when the input sensor is driven at the inspection frequency. The inspection frequency includes a harmonic frequency of a driving frequency of the display panel.
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9.发明申请公开(公告)号：US20230030916A1
公开(公告)日：2023-02-02
申请号：US17962669
申请日：2022-10-10
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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公开(公告)号：US20240349569A1
公开(公告)日：2024-10-17
申请号：US18754489
申请日：2024-06-26
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： HYUNGBAE KIM , TAEJOON KIM , JAEWOO CHOI
IPC: H10K59/40 , G06F3/044 , H10K50/844 , H10K102/00
CPC classification number: H10K59/40 , G06F3/0446 , H10K50/844 , G06F2203/04111 , H10K2102/311
Abstract: A display device includes a display panel and an input sensor disposed on the display panel. The input sensor includes a plurality of first areas repeatedly arranged in a first direction, a plurality of second areas repeatedly arranged in the first direction, an inorganic insulating layer disposed in the first areas, an organic insulating layer disposed in the first areas and the second areas, and a sensing electrode disposed on the organic insulating layer. The first areas are alternately arranged in the first direction with the second areas, and the input sensor includes openings in the second areas that are formed by removing portions of the inorganic insulating layer from the second areas.
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