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公开(公告)号：US11650685B2
公开(公告)日：2023-05-16
申请号：US17673872
申请日：2022-02-17
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Yoshitoshi Kida , Koji Noguchi
CPC classification number: G06F3/0412 , G06F3/0445 , G06F3/0446
Abstract: A display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function are disclosed. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.
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公开(公告)号：US20220171486A1
公开(公告)日：2022-06-02
申请号：US17673872
申请日：2022-02-17
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Yoshitoshi Kida , Koji Noguchi
Abstract: A display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function are disclosed. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.
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公开(公告)号：US11281319B2
公开(公告)日：2022-03-22
申请号：US16706268
申请日：2019-12-06
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Hiroshi Mizuhashi , Kohei Azumi
IPC: G06F3/041 , H03K17/96 , G06F3/044 , G02F1/1333
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：US20210271337A1
公开(公告)日：2021-09-02
申请号：US17322059
申请日：2021-05-17
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
Abstract: A display device is provided and includes scanning and signal lines; switch electrically coupled to scanning and signal lines; pixel electrode electrically coupled to switch and opposed to drive electrode; first and second display periods, and detection period between first and second display periods, wherein during first and second display periods, common voltage is applied to drive electrode, scanning signal is applied to scanning line and switch, pixel signal is applied to pixel electrode through signal line and switch, during detection period, AC drive signal or pulse drive signal is applied to drive electrode, and scanning signal is not applied to scanning line.
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公开(公告)号：US10692448B2
公开(公告)日：2020-06-23
申请号：US14739707
申请日：2015-06-15
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Kohei Azumi , Koji Noguchi , Koji Ishizaki
IPC: G06F3/044 , G09G3/36 , G06F3/041 , G02F1/1333
Abstract: A display unit with touch detection function includes a plurality of pixel signal lines each transmitting a pixel signal for display; a pixel signal line drive section applying the pixel signal to each of the pixel signal lines; display elements each performing display based on the pixel signal; touch detection electrodes each outputting a detection signal based on a change in capacitance occurring due to an external proximity object; and a touch detection section detecting, in a touch detection period, a touch event based on the detection signal, the touch detection period being different from a display period for the display elements to perform display operation. The pixel signal line drive section maintains a voltage of each of the pixel signal lines at a certain level during the touch detection period.
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Patent Agency Ranking
公开(公告)号：US10572047B2
公开(公告)日：2020-02-25
申请号：US15848073
申请日：2017-12-20
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Hayato Kurasawa , Yoshitoshi Kida , Toshinori Uehara , Takayuki Nakanishi
Abstract: A display device comprises a first power supply line supplying a first potential, a second power supply line supplying a second potential, a third power supply line supplying a touch driving signal, and a display unit including a plurality of sub-pixels. The display unit comprises a plurality of first electrodes respectively provided in the plurality of sub-pixels and electrically connected to the first power supply line, a second electrode provided to be common among the plurality of sub-pixels and electrically connected to the second power supply line, a light emitting layer provided between the first electrode and the second electrode, a plurality of third electrodes electrically connected to the third power supply line, and a signal control circuit supplying a signal synchronized with a touch driving signal to the second electrode in a period in which a touch driving signal is supplied to the plurality of third electrodes.
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公开(公告)号：US10409409B2
公开(公告)日：2019-09-10
申请号：US15928544
申请日：2018-03-22
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
Abstract: A display apparatus includes: a display device; a touch detection device; and a driver unit driving the display device so as to sequentially display M horizontal lines in each of plural unit drive periods forming one frame period and driving the touch detection device in N touch detection periods provided in each unit drive period, in which N is lower than M.
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公开(公告)号：US10310664B2
公开(公告)日：2019-06-04
申请号：US15978890
申请日：2018-05-14
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi , Takayuki Nakanishi , Hiroshi Mizuhashi
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343 , G02F1/1337 , G02F1/1362 , G02F1/1335 , G02F1/1368
Abstract: A display device including a display section having a plurality of pixel electrodes; and a plurality of drive electrodes extending in a first direction and arranged side-by-side in a second direction. Each of the drive electrodes has a width in the second direction corresponding to a size of the two or more pixel electrodes, and has one or more slits extending in the first direction.
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公开(公告)号：US10146389B2
公开(公告)日：2018-12-04
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
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：US10133437B2
公开(公告)日：2018-11-20
申请号：US15884509
申请日：2018-01-31
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida
IPC: G06F3/044 , G06F3/041 , G02F1/1333
Abstract: A display apparatus with a substrate having a long side and a short side, a plurality of driving electrodes arranged on the substrate parallel to the long side of the substrate, a plurality of touch detection electrodes arranged on the substrate parallel to the short side of the substrate, a control unit electrically coupled to each of the plurality of driving electrodes and which sequentially drives the plurality of driving electrodes, and a detection unit electrically coupled to each of the touch detection electrodes.
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