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公开(公告)号：US12219839B2
公开(公告)日：2025-02-04
申请号：US18344550
申请日：2023-06-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Gayeon Yun , Bongil Kang , Taejoon Kim
IPC: H10K59/13 , G06F3/041 , G06F3/044 , G09G3/32 , H10K59/12 , H10K59/121 , H10K59/131 , H10K59/40
Abstract: A display device includes a display panel, an input sensor, and a circuit board. The input sensor includes first detection electrodes arranged in a first direction, second detection electrodes arranged in a second direction, first detection wires respectively electrically connected to the first detection electrodes, and second detection wires respectively electrically connected to the second detection electrodes. Resistance values of the first detection wires decrease as a corresponding first detection electrode among the first detection electrodes is disposed closer to a center of the display panel. Resistance values of the second detection wires increase as a corresponding second detection electrode among the second detection electrodes moves away from the circuit board, and a difference between the resistance values of the second detection wires adjacent to each other increases as the corresponding second detection electrode moves away from the circuit board.
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公开(公告)号：US11893191B2
公开(公告)日：2024-02-06
申请号：US17936195
申请日：2022-09-28
Applicant: Samsung Display Co., Ltd.
Inventor： Bongil Kang , Jun-Young Ko , Gayeon Yun
IPC: G06F3/044
CPC classification number: G06F3/0443 , G06F2203/04107
Abstract: A display device includes a display module including a display panel and an input sensing layer on the display panel, and a flexible circuit film connected to the display module. The flexible circuit film includes a base film, a sensor connection wire, a ground wire, an insulating layer, a first conductive layer, and a cover tape. The sensor connection wire is on the base film and is electrically connected to the input sensing layer. The ground wire is on the base film, and the insulating layer covers the sensor connection wire. The first conductive layer is on the insulating layer and is electrically connected to the ground wire, and the cover tape is on the first conductive layer and is electrically connected to the ground wire.
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公开(公告)号：US20250077028A1
公开(公告)日：2025-03-06
申请号：US18823684
申请日：2024-09-04
Applicant: Samsung Display Co., Ltd.
Inventor： Bongil Kang , Minhong Kim , Jungmok Park , Yerin Oh
Abstract: A method of testing a display apparatus using a touch sensor and a touch integrated circuit is presented. The touch sensor includes a driving electrode line and a detection electrode line, and the touch integrated circuit includes a signal driving unit and a signal detection unit. The method includes sensing a first mutual capacitance of predetermined test coordinates by applying a first driving signal to the driving electrode line and receiving a detection signal from the detection electrode line, sensing a second mutual capacitance of the predetermined test coordinates by applying a second driving signal to the driving electrode line and receiving a detection signal from the detection electrode line, and determining whether a touch operation is performed based on a difference between the first mutual capacitance and the second mutual capacitance.
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公开(公告)号：US11460963B2
公开(公告)日：2022-10-04
申请号：US17193675
申请日：2021-03-05
Applicant: Samsung Display Co., Ltd.
Inventor： Bongil Kang , Jun-Young Ko , Gayeon Yun
IPC: G06F3/044
Abstract: A display device includes a display module including a display panel and an input sensing layer on the display panel, and a flexible circuit film connected to the display module. The flexible circuit film includes a base film, a sensor connection wire, a ground wire, an insulating layer, a first conductive layer, and a cover tape. The sensor connection wire is on the base film and is electrically connected to the input sensing layer. The ground wire is on the base film, and the insulating layer covers the sensor connection wire. The first conductive layer is on the insulating layer and is electrically connected to the ground wire, and the cover tape is on the first conductive layer and is electrically connected to the ground wire.
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Patent Agency Ranking
公开(公告)号：US20220253168A1
公开(公告)日：2022-08-11
申请号：US17487165
申请日：2021-09-28
Applicant: Samsung Display Co., Ltd.
Inventor： Bongil Kang , Sangkook Kim , Gayeon Yun
Abstract: A method of testing an electronic device includes providing an electronic device. The electronic device includes a display layer that includes a common electrode. The electronic device also includes a sensor layer disposed on the display layer and that includes a first sensing electrode and a second sensing electrode. The first sensing electrode and the second sensing electrode cross each other and are electrically disconnected. The method further includes providing a test signal that includes a test frequency to the first sensing electrode, measuring a capacitance of a capacitor disposed between the first and second sensing electrodes based on the test signal, and testing the common electrode based on the capacitance.
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公开(公告)号：US12260053B2
公开(公告)日：2025-03-25
申请号：US18408419
申请日：2024-01-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bongil Kang , Jun-Young Ko , Gayeon Yun
IPC: G06F3/044
Abstract: A display device includes a display module including a display panel and an input sensing layer on the display panel, and a flexible circuit film connected to the display module. The flexible circuit film includes a base film, a sensor connection wire, a ground wire, an insulating layer, a first conductive layer, and a cover tape. The sensor connection wire is on the base film and is electrically connected to the input sensing layer. The ground wire is on the base film, and the insulating layer covers the sensor connection wire. The first conductive layer is on the insulating layer and is electrically connected to the ground wire, and the cover tape is on the first conductive layer and is electrically connected to the ground wire.
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公开(公告)号：US12232405B2
公开(公告)日：2025-02-18
申请号：US17547186
申请日：2021-12-09
Applicant: Samsung Display Co., Ltd.
Inventor： Bongil Kang , Yujin Sin , Gayeon Yun
IPC: H10K71/00 , H10K59/131 , H10K59/40 , H10K71/70
Abstract: A display device includes a display module and a flexible circuit film connected to the display module. The display module includes a display panel and an input sensing layer. The flexible circuit film includes a base film, a ground line disposed on the base film, a plurality of connection lines disposed on the base film and electrically connected to at least one of the input sensing layer and the display panel, a conductive layer disposed on the connection lines and overlapping at least a portion of the connection lines, an insulating layer disposed on the conductive layer, and a cover tape disposed on the insulating layer and overlapping the ground line.
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公开(公告)号：US11906561B2
公开(公告)日：2024-02-20
申请号：US17464293
申请日：2021-09-01
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bongil Kang , Joo-Hyeon Jeong , Jun-Young Ko , Sangkook Kim , Gayeon Yun
CPC classification number: G01R27/2605 , G01R31/2825 , G09G3/006 , H10K59/40
Abstract: An inspection device inspects a display for defects. The display includes a power supply, a circuit board having a stabilizer to stabilize the power supply, a display panel which is electrically connected to the circuit board and has a first electrode, and an input sensor which is disposed on the display panel and has a second electrode. The inspection logic measures a value of capacitance between the first electrode and the second electrode of the display, and includes a frequency setter that sets a driving frequency of the second electrode to a frequency in a predetermined range.
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公开(公告)号：US11733793B2
公开(公告)日：2023-08-22
申请号：US17487165
申请日：2021-09-28
Applicant: Samsung Display Co., Ltd.
Inventor： Bongil Kang , Sangkook Kim , Gayeon Yun
CPC classification number: G06F3/0412 , G01R27/2605 , G06F3/0443 , G06F3/0446 , G06F3/0447 , G06F3/04164 , G06F2203/04111
Abstract: A method of testing an electronic device includes providing an electronic device. The electronic device includes a display layer that includes a common electrode. The electronic device also includes a sensor layer disposed on the display layer and that includes a first sensing electrode and a second sensing electrode. The first sensing electrode and the second sensing electrode cross each other and are electrically disconnected. The method further includes providing a test signal that includes a test frequency to the first sensing electrode, measuring a capacitance of a capacitor disposed between the first and second sensing electrodes based on the test signal, and testing the common electrode based on the capacitance.
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