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公开(公告)号：US20230409140A1
公开(公告)日：2023-12-21
申请号：US18132326
申请日：2023-04-07
Applicant: Samsung Display Co., Ltd
Inventor： HYUN-WOOK CHO , YOUNGSIK KIM , SANGKOOK KIM , TAEJOON KIM
IPC: G06F3/041 , G06F3/042 , H10K59/131 , H10K59/88 , H10K59/40
CPC classification number: G06F3/04164 , G06F3/0421 , G06F3/0412 , G06F2203/04102 , H10K59/88 , H10K59/40 , H10K59/131
Abstract: A display device, includes: a display panel including an active region and a peripheral region which are adjacent to each other; and an input-sensing panel on the display panel, the input-sensing panel comprising a first region, a second region, and a third region, which are overlapped with the active region and are sequentially arranged, and a fourth region, which is overlapped with the peripheral region, wherein the input-sensing panel comprises: a sensing electrode in the first and second regions and includes a plurality of conductive lines; and a trace line in the third and fourth regions and connected to the sensing electrode, wherein a density per unit area of the conductive lines is higher in the second region than in the first region.
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公开(公告)号：US20230176676A1
公开(公告)日：2023-06-08
申请号：US18053509
申请日：2022-11-08
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： EUNGKWAN LEE , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , JEONGHEON LEE
CPC classification number: G06F3/0416 , G06F3/0446
Abstract: An electronic device includes a display layer, a sensor layer, and a sensor driver that receives a sensitivity value from a node defined in an area where one electrode intersects one cross electrode, and calculates an input coordinate based on the sensitivity value. When the sensitivity value received from the node is equal to or greater than a first threshold value, the sensor driver calculates the input coordinate based on the sensitivity value. When each of a plurality of sensitivity values received from the node and a plurality of peripheral nodes adjacent to the node is less than the first threshold value and greater than or equal to a second threshold value, the sensor driver calculates the input coordinate based on the plurality of sensitivity values.
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公开(公告)号：US20230161436A1
公开(公告)日：2023-05-25
申请号：US18095530
申请日：2023-01-10
Applicant: Samsung Display Co., Ltd.
Inventor： HYUN-WOOK CHO , MIN-HONG KIM , TAEJOON KIM , JUNGMOK PARK
CPC classification number: G06F3/04162 , G06F3/0446 , G06F2203/04107 , G06F3/0412
Abstract: A display device includes: a display panel; and an input sensor disposed on the display panel, wherein the input sensor includes: a plurality of sensing electrodes; a plurality of sensing wirings electrically connected to the plurality of sensing electrodes, respectively; and a conductive part covering the plurality of sensing wirings, wherein the conductive part is configured to be floated or to receive a substantially constant voltage, and wherein the conductive part has a single, contiguous shape.
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公开(公告)号：US20220236830A1
公开(公告)日：2022-07-28
申请号：US17531846
申请日：2021-11-22
Applicant: Samsung Display Co., Ltd.
Inventor： HYUN-WOOK CHO , MIN-HONG KIM , SANGKOOK KIM , TAEJOON KIM , JUNGMOK PARK
Abstract: A circuit board including: a body part including a driving chip; a pad part including a plurality of pads connected to a plurality of lines, wherein the pad part extends in a first direction from the body part; and a line part including a first line of the lines, wherein the first line is electrically connected to the driving chip, the line part extends in the first direction from the body part, and the line part is bendable with respect to a bending line.
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公开(公告)号：US20220057895A1
公开(公告)日：2022-02-24
申请号：US17350946
申请日：2021-06-17
Applicant: Samsung Display Co., Ltd.
Inventor： SIYOUNG CHOI , CHANGBUM KIM , TAEJOON KIM , SANGWOOK YOO
Abstract: A display device includes: a display panel configured to display an image; an input sensing substrate on the display panel; a flexible circuit film coupled to one side of an upper surface of the input sensing substrate; a step compensation film spaced apart from the flexible circuit film on the upper surface of the input sensing substrate; and an anti-reflection film on the flexible circuit film and the step compensation film, wherein the step compensation film comprises: a compensation layer on the upper surface of the input sensing substrate, and an overcoat layer between the compensation layer and the input sensing substrate.
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Patent Agency Ranking
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：US20240046827A1
公开(公告)日：2024-02-08
申请号：US18199606
申请日：2023-05-19
Applicant: Samsung Display Co., LTD.
Inventor： JINWOO PARK , BOGEUN YUK , TAEJOON KIM , SEUNGROK LEE , IL HO LEE
CPC classification number: G09G3/006 , G06F3/0446 , G09G3/2096 , G09G2330/12
Abstract: An electronic device testing method includes providing an electronic device including a display layer including a common electrode and a sensor layer that is disposed on the display layer and that includes a plurality of first electrodes and a plurality of second electrodes that insulatively intersect the plurality of first electrodes, measuring a plurality of jitter values of a plurality of channels formed by the plurality of first electrodes and the plurality of second electrodes, calculating a first value being an average of the plurality of jitter values, calculating a second value by summing jitter values, among the plurality of jitter values, of channels formed by one of the plurality of second electrodes among the plurality of channels, and testing the common electrode based on a third value obtained by dividing the second value by the first value.
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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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