-
公开(公告)号：US11494020B2
公开(公告)日：2022-11-08
申请号：US17355309
申请日：2021-06-23
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.
-
公开(公告)号：US11169639B2
公开(公告)日：2021-11-09
申请号：US17130353
申请日：2020-12-22
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Yasuyuki Teranishi , Hiroshi Mizuhashi , Kohei Azumi
Abstract: A display device is provided and includes a substrate; pixel electrode on the substrate; a signal line coupled to the pixel electrode; a plurality of drive electrodes including a first drive electrode overlapping the signal line; a drive signal line configured to supply a drive signal to the first drive electrode; and a drive electrode switch connecting the drive signal line and the first drive electrode, wherein during a touch detection period, the drive electrode switch is closed to apply the drive signal to the first drive electrode.
-
公开(公告)号：US10795497B2
公开(公告)日：2020-10-06
申请号：US16364452
申请日：2019-03-26
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Tadayoshi Katsuta , Yoshitoshi Kida
Abstract: According to an aspect, a display device with a touch detection function includes: a display region; a plurality of drive electrodes; a control device; a touch detection electrode that is opposed to the drive electrodes and forms capacitance with respect to the drive electrodes; power supply wiring arranged in a frame region positioned outside the display region; and a plurality of drive electrode scanning units that select the drive electrode to be coupled to the power supply wiring. When the drive electrode scanning unit simultaneously selects the drive electrodes of which number is equal to or larger than the number of pieces of the power supply wiring, the control device supplies a touch driving signal that is multiplexed based on a certain code to each of the selected drive electrodes.
-
公开(公告)号：US10768755B2
公开(公告)日：2020-09-08
申请号：US16016055
申请日：2018-06-22
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Daisuke Takama , Yoshitoshi Kida
IPC: G06F3/044 , G02F1/1333 , G02F1/1343 , G06F3/041 , G09G3/36
Abstract: A common electrode for a display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor) of the pair of electrodes is newly formed. An existing common drive signal as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode and the detection-electrode-for-the-sensor, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor, and it is unnecessary to newly prepare a drive signal for the touch sensor.
-
65.发明申请公开(公告)号：US20200150798A1
公开(公告)日：2020-05-14
申请号：US16738584
申请日：2020-01-09
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.
-
Patent Agency Ranking
公开(公告)号：US10545593B2
公开(公告)日：2020-01-28
申请号：US15698712
申请日：2017-09-08
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Mitsuhide Miyamoto , Hiroshi Mizuhashi , Takayuki Nakanishi , Shuji Hayashi , Yoshitoshi Kida
IPC: G06F3/041 , G06F3/044 , G09G3/3233 , H01L27/32 , H01L51/52 , G09G3/3266 , G09G3/3275
Abstract: A display device includes a plurality of sub pixels; a plurality of first electrodes, the sub pixel including the first electrode; a plurality of second electrodes, the second electrode being provided commonly for at least one row pixel group, the row pixel group including sub pixels arrayed in a line in a first direction, the plurality of second electrodes being arrayed in a second direction; a light emitting layer between the first electrode and the second electrode, the sub pixel including the light emitting layer; an output transistor connected with the first electrode, the output transistor capable of blocking supply of an electric current to the first electrode, the light emitting layer, and the second electrode; and a plurality of third electrodes facing the second electrodes, the third electrode and the second electrode forming capacitance, the third electrode being connected with a plurality of output terminals respectively.
-
公开(公告)号：US10540031B2
公开(公告)日：2020-01-21
申请号：US16025368
申请日：2018-07-02
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Hiroshi Mizuhashi , Kohei Azumi
IPC: G06F3/041 , G06F3/044 , H03K17/96 , 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.
-
公开(公告)号：US20190250743A1
公开(公告)日：2019-08-15
申请号：US16397397
申请日：2019-04-29
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida
CPC classification number: G06F3/044 , G02F1/13338 , G06F3/0416
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.
-
公开(公告)号：US20190220140A1
公开(公告)日：2019-07-18
申请号：US16364452
申请日：2019-03-26
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Tadayoshi Katsuta , Yoshitoshi Kida
Abstract: According to an aspect, a display device with a touch detection function includes: a display region; a plurality of drive electrodes; a control device; a touch detection electrode that is opposed to the drive electrodes and forms capacitance with respect to the drive electrodes; power supply wiring arranged in a frame region positioned outside the display region; and a plurality of drive electrode scanning units that select the drive electrode to be coupled to the power supply wiring. When the drive electrode scanning unit simultaneously selects the drive electrodes of which number is equal to or larger than the number of pieces of the power supply wiring, the control device supplies a touch driving signal that is multiplexed based on a certain code to each of the selected drive electrodes.
-
公开(公告)号：US10355058B2
公开(公告)日：2019-07-16
申请号：US15610754
申请日：2017-06-01
Applicant: Japan Display Inc.
Inventor： Mitsuhide Miyamoto , Hayato Kurasawa , Hiroshi Mizuhashi , Takayuki Nakanishi , Shuji Hayashi , Yoshitoshi Kida
Abstract: A display device includes a plurality of first detection electrodes that are respectively disposed in a plurality of first areas, which are shaped in a stripe pattern and extend in the first direction, and extend in a first direction, an insulating layer that is disposed in a grid-like area, covers the first detection electrodes, and is placed on perimeters of pixel electrodes, and a plurality of second detection electrodes that are disposed on a sealing layer along a plurality of second areas and extend in a second direction, the second areas being included in the grid-like area, shaped in a stripe pattern, and extending in the second direction. The common electrodes are respectively disposed on a plurality of second banks and continue to the first direction.
-
-
-
-
-
-
-
-
-
Search Results
151
records
(took 0.022 seconds)
