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    ELEMENT SUBSTRATE AND LIGHT EMITTING DEVICE
    16.
    发明申请
    ELEMENT SUBSTRATE AND LIGHT EMITTING DEVICE 审中-公开

    公开(公告)号：US20200286428A1

    公开(公告)日：2020-09-10

    申请号：US16881046

    申请日：2020-05-22

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Yu Yamazaki ,  Aya Anzai ,  Mitsuaki Osame

    IPC: G09G3/3233 ,  G09G3/3266 ,  F21V23/00 ,  F21V23/06 ,  H01L27/32

    Abstract: A light emitting device and an element substrate which are capable of suppressing variations in luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. A gate potential of a driving transistor is connected to a first scan line or a second scan line, and the driving transistor operates in a saturation region. A current controlling transistor which operates in a linear region is connected in series to the driving transistor. A video signal which transmits a light emission or non-emission of a pixel is input to the gate of the current controlling transistor through a switching transistor.

    Semiconductor device having rectifying elements connected to a pixel of a display device
    17.
    发明授权
    Semiconductor device having rectifying elements connected to a pixel of a display device 有权

    公开(公告)号：US10115350B2

    公开(公告)日：2018-10-30

    申请号：US15344745

    申请日：2016-11-07

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Hajime Kimura ,  Yu Yamazaki

    IPC: G09G3/32 ,  G09G3/3283 ,  G09G3/325 ,  H01L27/06 ,  H01L27/12 ,  H01L27/32

    Abstract: When writing a signal current from a current source to a current source circuit, noise occurs in some cases in a wiring through which a current flows, which may cause a potential of the wiring to be outside the normal range. As the potential does not turn back within the normal range easily at this time, writing to the current source circuit is delayed. According to the invention, when the potential becomes outside the normal range due to noise occurring in a wiring through which a current flows when writing a signal current from a current source to a current source circuit, a current is supplied from other than the current source, thereby the potential of the wiring can turn back within the normal range rapidly.

    DISPLAY DEVICE AND ELECTRONIC APPARATUS
    19.
    发明申请
    DISPLAY DEVICE AND ELECTRONIC APPARATUS 审中-公开
    显示设备和电子设备

    公开(公告)号：US20150084029A1

    公开(公告)日：2015-03-26

    申请号：US14556288

    申请日：2014-12-01

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Yu Yamazaki

    IPC: H01L27/32

    CPC classification number: H01L27/3267 ,  G09G3/00 ,  G09G3/20 ,  G09G3/30 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2300/0465 ,  G09G2300/0809 ,  G09G2300/0847 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/0267 ,  H01L27/3211 ,  H01L27/322 ,  H01L51/5271 ,  H04M1/0214 ,  H04M2250/16 ,  H04M2250/52

    Abstract: According to one feature of the invention, a display device comprises a pixel including a first sub-pixel having a first light-emitting element and a second sub-pixel having a second light-emitting element, a first source driver connected to a first source line included in the first sub-pixel, and a second source driver connected to a second source line included in the second sub-pixel. The first sub-pixel and the second sub-pixel are provided over one surface of a light-transmitting substrate, and a first display region using the first sub-pixel over one surface of the substrate and a second display region using the second sub-pixel over the opposite surface the substrate are provided. Accordingly, it is possible to provide a display device that realizes sophistication and a high added value, which includes a display region in each of one and the opposite sides.

    Abstract translation: 根据本发明的一个特征，一种显示装置包括：像素，包括具有第一发光元件的第一子像素和具有第二发光元件的第二子像素;第一源极驱动器，连接到第一源极 包括在第一子像素中的线，以及连接到包括在第二子像素中的第二源极线的第二源极驱动器。 第一子像素和第二子像素设置在透光基板的一个表面上，并且在基板的一个表面上使用第一子像素的第一显示区域和使用第二子像素的第二显示区域， 提供衬底的相对表面上的像素。 因此，可以提供实现复杂性和高附加值的显示装置，该显示装置包括一侧和相对侧的显示区域。

    Element substrate and light emitting device
    20.
    发明授权
    Element substrate and light emitting device 有权
    元件基板和发光器件

    公开(公告)号：US08759825B2

    公开(公告)日：2014-06-24

    申请号：US13804538

    申请日：2013-03-14

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

    IPC: H01L27/28 ,  H01L51/52

    CPC classification number: H01L27/326 ,  G09G3/2022 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2300/0885 ,  G09G2310/0251 ,  H01L27/283 ,  H01L29/78672 ,  H01L51/5012 ,  H01L51/5296

    Abstract: A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a depletion mode transistor is used as a driving transistor. The gate of the driving transistor is fixed in its potential or connected to the source or drain thereof to operate in a saturation region with a constant current flow. A current controlling transistor which operates in a linear region is connected in series to the driving transistor, and a video signal for transmitting a light emission or non-emission of a pixel is inputted to the gate of the current controlling transistor through a switching transistor.

    Abstract translation: 一种发光器件和元件衬底，其能够抑制由于驱动晶体管的特性变化而导致的像素之中的发光元件的亮度强度的变化，而不会抑制开关晶体管的截止电流低并且增加电容器的存储容量 。 根据本发明，使用耗尽型晶体管作为驱动晶体管。 驱动晶体管的栅极固定在其电位或连接到其源极或漏极，以在具有恒定电流的饱和区域中工作。 在线性区域中工作的电流控制晶体管与驱动晶体管串联连接，并且用于透射像素的发光或不发光的视频信号通过开关晶体管输入到电流控制晶体管的栅极。

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