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    DISPLAY DEVICE
    1.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20250029573A1

    公开(公告)日：2025-01-23

    申请号：US18771601

    申请日：2024-07-12

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA

    IPC: G09G3/36

    Abstract: A display device includes a substrate having a display region in which a plurality of pixels are arrayed in a first direction and a second direction different from the first direction, a plurality of scanning lines coupled to the pixels arrayed in the first direction, a plurality of signal lines coupled to the pixels arrayed in the second direction, a gate driver configured to supply a scanning signal to the scanning lines in a selection period of the scanning lines, a signal line selection circuit configured to supply a pixel signal to the signal lines in a selection period of the signal lines, and a driver IC.

    DETECTION DEVICE
    2.
    发明申请
    DETECTION DEVICE 有权

    公开(公告)号：US20230057376A1

    公开(公告)日：2023-02-23

    申请号：US17886977

    申请日：2022-08-12

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA ,  Yoshitaka OZEKI

    IPC: H01L27/146

    Abstract: According to an aspect, a detection device includes: a substrate; a plurality of transistors provided on the substrate; a plurality of scan lines that extend in a first direction; a plurality of signal lines that extend in a second direction intersecting the first direction; a plurality of photodiodes that are provided in an area surrounded by the scan lines and the signal lines and each include a p-type semiconductor layer, an i-type semiconductor layer, and an n-type semiconductor layer; and a shield wiring line that extends in the first direction and overlaps a corresponding one of the scan lines. The shield wiring line is electrically coupled to, among the signal lines, a power supply signal line configured to supply a power supply potential to the transistors.

    DETECTION DEVICE
    3.
    发明申请
    DETECTION DEVICE 有权

    公开(公告)号：US20220262158A1

    公开(公告)日：2022-08-18

    申请号：US17725766

    申请日：2022-04-21

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA

    IPC: G06V40/13

    Abstract: A detection device includes: a sensor in which detection elements each including a photoelectric conversion element are arranged in a detection region; a drive circuit configured to supply drive signals to the detection elements; and a detection circuit configured to process a detection signal output from each detection element. Each detection element includes: a source follower transistor configured to output a signal corresponding to an electric charge generated in the photoelectric conversion element; and a read transistor configured to read an output signal of the source follower transistor and output the detection signal. A potential obtained by superimposing a threshold voltage of the source follower transistor and a voltage drop caused by on-resistance of the read transistor on a reset potential serving as a reference value for a voltage variation amount of the detection signal is set as an initial value of a potential applied to the photoelectric conversion element.

    DISPLAY DEVICE WITH A TOUCH DETECTION FUNCTION
    4.
    发明申请
    DISPLAY DEVICE WITH A TOUCH DETECTION FUNCTION 有权

    公开(公告)号：US20210124450A1

    公开(公告)日：2021-04-29

    申请号：US17139215

    申请日：2020-12-31

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA ,  Hiroshi MIZUHASHI

    IPC: G06F3/041 ,  G06F3/044

    Abstract: A display device with a touch detection function is provided and includes a display area where a plurality of pixel electrodes are arranged in a matrix having a first direction and a second direction crossing the first direction above a substrate; common electrodes provided so as to face the pixel electrodes; an insulating layer between the common electrodes and the pixel electrodes; a display functional layer having an image display function of displaying an image on the display area; a plurality of pixel signal lines each coupled to the pixel electrodes, the pixel signal lines each extending in the first direction; a source selector that are coupled to the pixels through the pixel signal lines and that performs a switching operation, the source selector including a plurality of source switches; and a control device for performing image display control by applying a display drive voltage between the pixel electrodes and the common electrodes based on an image signal to exert the image display function of the display functional layer.

    DISPLAY DEVICE
    5.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200012144A1

    公开(公告)日：2020-01-09

    申请号：US16530395

    申请日：2019-08-02

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA

    IPC: G02F1/1335 ,  H01L27/32 ,  G02F1/1345 ,  G09G3/36

    Abstract: A light shielding layer overlapping with a peripheral region of a display device includes extension portions each extending along a Y direction, bent portions located between the extension portions, and another extension portion located between the bent portions. In a region overlapping with the another extension portion, an enable line (first potential supply line), which supplies a potential to a plurality of scanning signal lines via a driving circuit (first driving circuit), goes through a wiring layer (first wiring layer) and another wiring layer (second wiring layer) made of a material having resistivity lower than that of the wiring layer.

    DISPLAY DEVICE WITH TOUCH SENSOR, POTENTIAL CONTROL METHOD AND PROGRAM
    6.
    发明申请
    DISPLAY DEVICE WITH TOUCH SENSOR, POTENTIAL CONTROL METHOD AND PROGRAM 审中-公开

    公开(公告)号：US20190339801A1

    公开(公告)日：2019-11-07

    申请号：US16518645

    申请日：2019-07-22

    Applicant: Japan Display Inc.

    Inventor： Takeya TAKEUCHI ,  Hiroshi MIZUHASHI ,  Tadayoshi KATSUTA ,  Takehiro SHIMA

    IPC: G06F3/044 ,  G06F3/041 ,  G09G3/36 ,  G02F1/1333

    Abstract: A display device with a touch sensor includes: plural display pixel electrodes; a common electrode arranged opposite to the display pixel electrodes; a display function layer having an image display function; a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode, wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, and a gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied.

    DISPLAY DEVICE
    9.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20170357353A1

    公开(公告)日：2017-12-14

    申请号：US15603635

    申请日：2017-05-24

    Applicant: Japan Display Inc.

    Inventor： Tadayoshi KATSUTA

    IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044

    CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04108 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2310/0281 ,  G09G2310/0283 ,  G09G2330/02

    Abstract: The display device includes: a scan line driving circuit selecting a potential supplied to a scan line; a driver chip; a plurality of source wires connected to a detection circuit; a terminal connected to an inspection wire controlling the scan line driving circuit; and a protection circuit arranged between the inspection wire and the terminal When it is assumed that an extending direction of a switch circuit connected with the plurality of source wires is an X axis direction, that one side of the X axis direction is an X1 side, and that the other side therein is an X2 side, the plurality of source wires are arranged closer to the X1 side than a center of the region in the X axis direction, and the terminal and the protection circuit are arranged closer to the X2 side than the center of the region in the X axis direction.

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