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    DETECTION DEVICE
    1.
    发明公开
    DETECTION DEVICE 审中-公开

    公开(公告)号：US20230379599A1

    公开(公告)日：2023-11-23

    申请号：US18230508

    申请日：2023-08-04

    Applicant: Japan Display Inc.

    Inventor： Keiichi SAITO ,  Takashi NAKAMURA ,  Atsunori OYAMA

    IPC: H04N25/709 ,  H04N25/76

    CPC classification number: H04N25/709 ,  H04N25/76 ,  H01L27/14643

    Abstract: According to an aspect, a detection device includes: photodiodes configured to perform detection in a detection period, a power supply control circuit, and power supply circuits configured to supply, to each photodiode, a first potential or a second potential based on a control signal from the power supply control circuit. The photodiodes are respectively provided for partial detection areas of a detection area. The power supply control circuit is configured to detect an output level of a signal output from each of the partial detection areas when the first potential is supplied to the photodiodes during a setting period different from the detection period, and control the power supply circuits so as to supply the second potential to the photodiode of the partial detection area in which the output level of the signal is equal to or higher than a predetermined threshold during the detection period.

    DETECTION DEVICE
    3.
    发明公开
    DETECTION DEVICE 审中-公开

    公开(公告)号：US20240337530A1

    公开(公告)日：2024-10-10

    申请号：US18742015

    申请日：2024-06-13

    Applicant: Japan Display Inc. ,  The University of Tokyo

    Inventor： Keiichi SAITO ,  Takashi NAKAMURA ,  Gen KOIDE ,  Takao SOMEYA ,  Tomoyuki YOKOTA

    IPC: G01J1/44

    CPC classification number: G01J1/44 ,  G01J2001/446

    Abstract: According to an aspect, a detection device includes: a first detection circuit including a first photodiode sensitive to first light and a second photodiode sensitive to second light; and a second detection circuit including a third photodiode sensitive to third light. The first photodiode and the second photodiode are coupled in series and in opposite directions to form a first detection element. One end side of the first detection element is coupled to a first signal line via a first transistor. Another end side of the first detection element is configured to be supplied with a first drive signal. A cathode of the third photodiode is coupled to a second signal line via a second transistor. An anode of the third photodiode is configured to be supplied with a second drive signal.

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

    公开(公告)号：US20190073934A1

    公开(公告)日：2019-03-07

    申请号：US16117206

    申请日：2018-08-30

    Applicant: Japan Display Inc.

    Inventor： Keiichi SAITO

    IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/3258

    CPC classification number: G09G3/2003 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0852 ,  G09G2310/0251 ,  G09G2310/0297 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2330/023 ,  G09G2360/16

    Abstract: A display device includes an electroluminescent panel including first light-emitting elements to emit red (first color), second light-emitting elements to emit green (second color), and third light-emitting elements to emit blue (third color); an image analyzer that obtains, in displaying of a received video signal, first power serving as a total of power required for displaying red (first color), power required for displaying green (second color), and power required for displaying blue (third color), and that calculates second power by multiplying the first power by a predetermined coefficient according to the video signal, and calculates threshold power by multiplying, by the coefficient, maximum allowable power that is allowed when the electroluminescent panel performs image display; and a luminance adjuster that multiplies the video signal by a ratio between the threshold power and the second power when the second power is equal to or greater than the threshold power.

    DISPLAY DEVICE
    6.
    发明申请
    DISPLAY DEVICE 有权
    显示设备

    公开(公告)号：US20140210777A1

    公开(公告)日：2014-07-31

    申请号：US14152143

    申请日：2014-01-10

    Applicant: Japan Display Inc.

    Inventor： Keiichi SAITO ,  Hideyuki Takahashi ,  Takashi Nakamura ,  Satoru Tomita ,  Masahiro Tada ,  Hirotaka Hayashi ,  Takashi Okada ,  Yoshiro Aoki ,  Takanori Tsunashima

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044

    Abstract: According to one embodiment, a display device includes a display pixel allocated at a matrix state in a display area, an image-reading device which detects strength of capacitive coupling by a dielectric material coming close to or making contact with the display area, and a control portion which controls each transistor of the image-reading device. The image-reading device includes a detection electrode which forms capacitance between the detection electrode and the dielectric material, a pre-charge gate line, a coupling pulse line, a readout gate line, a pre-charge line and a readout line. These lines supply a signal which drives the image-reading device. The image-reading device further includes a pre-charge transistor, an amplification transistor, a readout transistor, a compensation transistor, and a power-source switching transistor.

    Abstract translation: 根据一个实施例，显示装置包括在显示区域中以矩阵状态分配的显示像素，图像读取装置，其通过接近或与显示区域接触的电介质材料来检测电容耦合的强度，以及 控制部分，其控制图像读取装置的每个晶体管。 图像读取装置包括在检测电极和电介质材料之间形成电容的检测电极，预充电栅极线，耦合脉冲线，读出栅极线，预充电线和读出线。 这些线路提供驱动图像读取装置的信号。 图像读取装置还包括预充电晶体管，放大晶体管，读出晶体管，补偿晶体管和电源开关晶体管。

    DETECTION DEVICE
    7.
    发明公开
    DETECTION DEVICE 审中-公开

    公开(公告)号：US20240206201A1

    公开(公告)日：2024-06-20

    申请号：US18544861

    申请日：2023-12-19

    Applicant: Japan Display Inc.

    Inventor： Keiichi SAITO

    IPC: H10K39/32 ,  G06V10/141 ,  G06V40/13

    CPC classification number: H10K39/32 ,  G06V10/141 ,  G06V40/1318

    Abstract: According to an aspect, a detection device includes: a plurality of organic photodiodes arranged in a detection area; a plurality of capacitive elements each coupled in parallel to a corresponding organic photodiode of the organic photodiodes; an analog front-end (AFE) circuit configured to read an electric charge amount stored in each of the capacitive elements to acquire a detection value of each of the organic photodiodes; a power supply circuit configured to supply a power supply potential to collectively apply a reverse bias to the organic photodiodes; and a control circuit configured to control the power supply potential. The organic photodiodes each includes: an active layer; an upper electrode provided with an upper buffer layer interposed between the upper electrode and the active layer; and a lower electrode provided with a lower buffer layer interposed between the lower electrode and the active layer.

    DISPLAY APPARATUS
    8.
    发明申请
    DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20180130413A1

    公开(公告)日：2018-05-10

    申请号：US15800899

    申请日：2017-11-01

    Applicant: Japan Display Inc.

    Inventor： Keiichi SAITO

    IPC: G09G3/3233 ,  G09G3/20

    CPC classification number: G09G3/3233 ,  G09G3/2018 ,  G09G2300/0852 ,  G09G2300/0866 ,  G09G2320/0233

    Abstract: According to an aspect, a display apparatus includes a plurality of pixels including light-emitting elements, a video signal driver that applies a video voltage or an initialization voltage to the pixels based on a video signal, a scan signal driver that applies a scan voltage to the pixels based on the video signal, and a controller that controls an initialization period in which the initialization voltage is applied to the pixels and a video voltage writing period in which the video voltage is applied to the pixels, in accordance with the tone of the video signal.

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