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公开(公告)号:US20220261107A1
公开(公告)日:2022-08-18
申请号:US17736275
申请日:2022-05-04
Applicant: Japan Display Inc.
Inventor: Koji ISHIZAKI , Hayato KURASAWA , Kohei AZUMI
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1335 , G02F1/1343
Abstract: A display device with a touch detection device is provided and includes display elements that are surrounded by scan lines each extending in first direction and signal lines each extending in second direction crossing first direction; touch detection electrodes opposed to display elements; metal wires disposed on each of touch detection electrodes and extending along signal lines, wherein metal wires being overlapped with corresponding one of signal lines, wherein metal wires are disposed without crossing each other and spaced from each other.
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公开(公告)号:US20220164055A1
公开(公告)日:2022-05-26
申请号:US17666674
申请日:2022-02-08
Applicant: Japan Display Inc.
Inventor: Yoshitoshi KIDA , Koji NOGUCHI , Hiroshi MIZUHASHI , Kohei AZUMI
Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
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公开(公告)号:US20200333911A1
公开(公告)日:2020-10-22
申请号:US16918404
申请日:2020-07-01
Applicant: Japan Display Inc.
Inventor: Hayato KURASAWA , Kohei AZUMI , Koji ISHIZAKI , Hideki KANEKO , Tsutomu HARADA
IPC: G06F3/041 , G02F1/1333 , G02F1/1335 , G02F1/1343 , G06F3/044
Abstract: The reliability of a display device with an input device is improved. A plurality of detection electrodes (input position detection electrodes) forming an electrostatic capacity between them and a common electrode of a display device to detect an input position are formed on a different substrate from substrates configuring the display device. Moreover, a polarizing plate and the substrate on which the plurality of detection electrodes are formed are adhesively fixed via, for example, an adhesive layer so that the plurality of detection electrodes are fixed so as to be separated apart from the display device. Thus, a distance between electrodes (the detection electrode and a driving electrode) for detecting an input position can be set separately from a thickness of the display device, and therefore, reduction in detection sensitivity (detection reliability) for the input position due to increase in the electrostatic capacity can be suppressed.
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公开(公告)号:US20170315639A1
公开(公告)日:2017-11-02
申请号:US15652685
申请日:2017-07-18
Applicant: Japan Display Inc.
Inventor: Yoshitoshi KIDA , Koji NOGUCHI , Yasuyuki TERANISHI , Hiroshi MIZUHASHI , Kohei AZUMI
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416 , G06F3/0418
Abstract: According to an aspect, a display device with a touch detection function includes a plurality of drive electrodes that face a plurality of pixel electrodes in an orthogonal direction to the surface of the substrate, and extend in a direction parallel to the direction in which a plurality of signal lines extend. The display device with a touch detection function also includes a scan driving unit that applies a touch drive signal to a signal line that faces, in an overlapping manner in the orthogonal direction, a drive electrode to which the touch drive signal is applied.
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公开(公告)号:US20170285827A1
公开(公告)日:2017-10-05
申请号:US15631732
申请日:2017-06-23
Applicant: Japan Display Inc.
Inventor: Kohei AZUMI , Hiroshi MIZUHASHI , Hayato KURASAWA
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044 , G09G3/3655
Abstract: A first substrate includes a gate line extending in a first direction, a source line extending in a second direction intersecting the first direction, a switching element which is connected to the gate line and the source line, and a pixel electrode which is connected to the switching element. The first substrate includes a common electrode which is opposed to the pixel electrode, and a detection electrode element necessary for sensing a state of closeness of a conductor brought externally, that extends parallel to the common electrode and is formed of a metallic material. By this structure, power consumption of a drive electrode of an input sensor can be reduced, and improvement of a drive frequency can be obtained.
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公开(公告)号:US20160188100A1
公开(公告)日:2016-06-30
申请号:US15059916
申请日:2016-03-03
Applicant: Japan Display Inc.
Inventor: Yasuyuki TERANISHI , Takafumi SUZUKI , Kohei AZUMI
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044
Abstract: A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP1 has a plurality of detecting electrodes extending in the Y-axis direction and arranged in the X-axis direction. The width of the driving electrode is smaller than the widths of the driving electrodes and the detecting electrode includes an expanding portion for expanding the area of the detecting electrode on the side opposite to the plurality of driving electrodes via the driving electrode.
Abstract translation: 检测到的电容的噪声抗扰度被抑制或抑制在设置在输入装置中的宽度不同于其它驱动电极的驱动电极上。 作为输入装置的触摸面板具有沿与X轴方向交叉的Y轴方向配置的X轴方向的多个驱动电极,配置在与X轴方向交叉的一侧的驱动电极 驱动电极并沿X轴方向延伸。 此外,触摸面板TP1具有沿Y轴方向延伸并且沿X轴方向布置的多个检测电极。 驱动电极的宽度小于驱动电极的宽度,并且检测电极包括用于经由驱动电极扩大与多个驱动电极相对的一侧上的检测电极的面积的扩展部。
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公开(公告)号:US20230205339A1
公开(公告)日:2023-06-29
申请号:US18111650
申请日:2023-02-20
Applicant: Japan Display Inc.
Inventor: Yoshitoshi KIDA , Koji NOGUCHI , Hiroshi MIZUHASHI , Kohei AZUMI
CPC classification number: G06F3/0412 , H03K17/9622 , G06F3/0445 , G06F3/0446 , G02F1/13338
Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
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公开(公告)号:US20200310618A1
公开(公告)日:2020-10-01
申请号:US16829094
申请日:2020-03-25
Applicant: Japan Display Inc.
Inventor: Kohei AZUMI , Toshinori UEHARA
Abstract: According to an aspect, a detection device includes at least a first touch detection period, in which first touch detection is performed, and a fingerprint detection period, in which fingerprint detection is performed. In the first touch detection period, a plurality of second electrodes in a second detection area in a first detection area are simultaneously selected, a plurality of first electrodes in the first detection area are simultaneously selected, and a first detection signal corresponding to a capacitance change between first electrodes and second electrodes are sequentially output. In the fingerprint detection period, the second electrodes in a plurality of divided areas obtained by dividing a second detection area are sequentially selected, the first electrodes in the divided areas are sequentially selected, and a second detection signal corresponding to a capacitance change between the first electrodes and the second electrodes is output.
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公开(公告)号:US20200218383A1
公开(公告)日:2020-07-09
申请号:US16826407
申请日:2020-03-23
Applicant: Japan Display Inc.
Inventor: Koji ISHIZAKI , Hayato KURASAWA , Kohei AZUMI
IPC: G06F3/044 , G06F3/041 , G02F1/1333 , G02F1/1335 , G02F1/1343
Abstract: A display device with a touch detection device is provided and includes display elements arranged in matrix of row and column direction and surrounded by scan lines each extending in a first direction and a signal lines each extending in a second direction, the display elements including a red display element, a green display element, and a blue display element; light shielding members each extending in one direction, the light shielding members arranged between the display elements adjacent to each other; and touch detection electrodes each extending in the one direction and arranged between the light shielding members and the display elements, and the touch detection electrodes including metal wires that extend overlapping the light shielding members, Wherein the metal wires are divided into metal wire parts that are arranged in the column direction, and the metal wire parts, each being longitudinal in the one direction, are disposed without crossing each other and spaced from each other in the one direction.
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公开(公告)号:US20190220136A1
公开(公告)日:2019-07-18
申请号:US16362211
申请日:2019-03-22
Applicant: Japan Display Inc.
Inventor: Hayato KURASAWA , Koji ISHIZAKI , Kohei AZUMI
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G06F2203/04103 , G06T5/20 , G09G3/2074 , G09G3/3655 , G09G3/3696 , G09G2300/0426
Abstract: A display device includes: a display layer; plural first electrodes formed to be arranged above the display layer; a shield electrode formed apart from the plural first electrodes so as to surround the whole plural first electrodes along an arrangement surface; an insulating layer; and a semiconductive layer formed opposite to the first electrodes and the shield electrode so as to sandwich the insulating layer, wherein the difference between an average potential of the first electrodes and an average potential of the shield electrode is equal to or less than 0.5V.
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