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    EL display apparatus
    21.
    发明授权
    EL display apparatus 有权

    公开(公告)号：US10134336B2

    公开(公告)日：2018-11-20

    申请号：US15335901

    申请日：2016-10-27

    Applicant: JOLED INC.

    Inventor： Hiroshi Takahara ,  Hitoshi Tsuge

    IPC: G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  H01L27/32 ,  G09G3/32 ,  H01L27/12 ,  H01L51/52 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/20 ,  G09G3/3275 ,  G09G5/02 ,  H01L29/786 ,  H01L27/15 ,  H01L33/56 ,  H01L33/58

    Abstract: An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel provided with an EL device corresponds to each intersection of the gate signal lines and the source signal lines. A driving transistor is provided for each pixel to supply a current to the EL device. A first switch transistor is provided for each pixel on a current path through which the current is supplied to the EL device. A gate driver circuit is connected to the gate signal lines. The gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate band-shaped non-display regions and band-shaped display regions on the display screen and to move the non-display regions and the display regions relative to the display screen.

    Display device and driving method
    23.
    发明授权
    Display device and driving method 有权

    公开(公告)号：US09852687B2

    公开(公告)日：2017-12-26

    申请号：US14915347

    申请日：2014-06-09

    Applicant: JOLED INC.

    Inventor： Hitoshi Tsuge ,  Kouhei Ebisuno ,  Shigeo Homura

    IPC: G09G3/3233 ,  G09G3/3266 ,  H01L27/32

    CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0254 ,  G09G2310/0256 ,  G09G2320/0223 ,  G09G2320/043 ,  H01L27/3244

    Abstract: A display device comprising pixel circuits arranged in a matrix, in which each of the pixel circuits includes: an EL element; a capacitor for storing voltage; a drive transistor that provides, to the EL element, a current corresponding to the voltage stored in the capacitor to cause the EL element to emit light; a voltage supplier that applies a reference voltage to the drive transistor in an initialization period, and applies a reverse bias voltage to the drive transistor in a predetermined period before the initialization period, the reference voltage being higher than a threshold voltage of the drive transistor and providing a forward bias between the gate and source electrodes of the drive transistor, the initialization period being a period for initializing the pixel circuit, the reverse bias voltage providing a reverse bias between the gate and source electrodes of the drive transistor.

    Display device
    24.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号：US09418594B2

    公开(公告)日：2016-08-16

    申请号：US14460368

    申请日：2014-08-15

    Applicant: JOLED INC.

    Inventor： Shinya Ono ,  Hitoshi Tsuge ,  Kouhei Ebisuno

    IPC: G09G3/32 ,  H01L27/12

    CPC classification number: G09G3/3233 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2320/045 ,  H01L27/1222 ,  H01L27/1225

    Abstract: A display device has a plurality of arrayed display pixels. A drive transistor includes a first gate electrode and supplies the current corresponding to a level of a luminance signal to the luminescence element. A switching transistor includes a source electrode, a drain electrode, a second gate electrode and a semiconductor layer. The semiconductor layer is faced with the second gate electrode and has, in a channel width direction perpendicular to a channel length direction of the switching transistor, a channel region with a first width and a remainder region with a second width larger than the first width. The source electrode or the drain electrode is connected to the first gate electrode. The source electrode and the drain electrode are provided on the semiconductor layer at an interval. The second gate electrode overlaps, in a plan view, the channel region entirely and the remainder region at least partially.

    Abstract translation: 显示装置具有多个排列的显示像素。 驱动晶体管包括第一栅电极，并将与亮度信号的电平相对应的电流提供给发光元件。 开关晶体管包括源电极，漏电极，第二栅电极和半导体层。 半导体层面对第二栅极，并且在与开关晶体管的沟道长度方向垂直的沟道宽度方向上具有第一宽度的沟道区和具有大于第一宽的第二宽度的余数区。 源电极或漏电极连接到第一栅电极。 源电极和漏电极以间隔设置在半导体层上。 第二栅电极在平面图中重叠沟道区域，至少部分重叠沟道区域。

    EL display apparatus
    25.
    发明授权
    EL display apparatus 有权

    公开(公告)号：US10699639B2

    公开(公告)日：2020-06-30

    申请号：US16714206

    申请日：2019-12-13

    Applicant: JOLED INC.

    Inventor： Hiroshi Takahara ,  Hitoshi Tsuge

    IPC: G09G3/3241 ,  H01L27/12 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/20 ,  G09G3/3258 ,  G09G3/3233 ,  H01L51/52 ,  G09G3/32 ,  G09G3/3266 ,  G09G3/325 ,  G09G5/02 ,  H01L33/58 ,  H01L33/56 ,  H01L29/786 ,  H01L27/15

    Abstract: An EL display apparatus is provided. A display screen includes pixels arranged in a matrix, with each pixel including an EL device and a pixel circuit. A source driver circuit is configured to output an analog video signal to each pixel. A gate driver circuit is on at least one side of the display screen, with the gate driver circuit including first and second gate driver circuits. Each pixel includes a driving transistor, a first switch transistor, and a second switch transistor. A gate terminal of the first switch transistor is connected to a first gate signal line of the first gate driver circuit, and a gate terminal of the second switch transistor is connected to a second gate signal line of the second gate driver circuit. The first and second switch transistors are on/off controlled, independently, by the first and second gate driver circuits.

    Method for powering off display apparatus, and display apparatus
    26.
    发明授权
    Method for powering off display apparatus, and display apparatus 有权

    公开(公告)号：US10089932B2

    公开(公告)日：2018-10-02

    申请号：US15031023

    申请日：2014-08-21

    Applicant: JOLED INC.

    Inventor： Hitoshi Tsuge

    IPC: G09G3/3258 ,  G09G3/3233 ,  H01L27/32

    Abstract: A method for powering off a display apparatus includes: detecting a power-off operation input to a display apparatus; upon detection of the power-off operation, setting capacitive elements of a plurality of pixel circuits so as to have a black-level voltage; and stopping supply of power to a display panel immediately after the voltage is set.

    Display device
    27.
    发明授权
    Display device 有权

    公开(公告)号：US09972241B2

    公开(公告)日：2018-05-15

    申请号：US14942028

    申请日：2015-11-16

    Applicant: JOLED INC.

    Inventor： Hitoshi Tsuge

    IPC: G09G3/3225 ,  G09G3/3233

    CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262

    Abstract: A display device includes: a pixel region in which plural pixels, each including a light emitting element, a capacitor, a drive transistor, and a switch transistor, are arranged in rows and columns; scanning lines; signal lines; and parasitic capacitance which occurs between a source node of the light emitting element of each of the plural pixels and a signal line among the signal lines, wherein when images having different grayscales are displayed in the pixels on adjacent rows which are a 1st-row pixel and a 2nd-row pixel, a difference between a gate-source voltage of the drive transistor of the 1st-row pixel and a gate-source voltage of the drive transistor of the 2nd-row pixel is less than a voltage value of one grayscale, the difference being represented by ΔVdata×Cad/(Cs+Cad+Coled).

    Image display apparatus
    30.
    发明授权
    Image display apparatus 有权

    公开(公告)号：US09761648B2

    公开(公告)日：2017-09-12

    申请号：US15113074

    申请日：2014-12-22

    Applicant: JOLED INC.

    Inventor： Shinya Ono ,  Hitoshi Tsuge ,  Kouhei Ebisuno

    IPC: H01L27/32 ,  H01L51/52

    CPC classification number: H01L27/3262 ,  H01L27/3248 ,  H01L27/3272 ,  H01L51/5221 ,  H01L2251/568

    Abstract: An image display apparatus includes: a first pixel circuit including a driving transistor that drives a light emitting element and includes a gate electrode on a substrate, a semiconductor layer and a pair of source-drain electrodes; a second pixel circuit disposed adjacent to the first pixel circuit; a second pixel electrode that is formed above the second pixel circuit and is electrically connected to one of the pair of source-drain electrodes of the driving transistor of the first pixel circuit; and a top metal electrode that is electrically connected to one of the pair of source-drain electrodes and is formed to cover at least an entire channel region of the semiconductor layer from above.

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