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    PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT
    4.
    发明申请
    PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT 审中-公开

    公开(公告)号：US20200051502A1

    公开(公告)日：2020-02-13

    申请号：US16654184

    申请日：2019-10-16

    Applicant: Sony Corporation

    Inventor： Katsuhide UCHINO ,  Junichi YAMASHITA ,  Tetsuro YAMAMOTO

    IPC: G09G3/3233 ,  G09G3/30 ,  G09G3/34 ,  G09G3/36 ,  H05B33/08 ,  G09G3/3258

    Abstract: A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes. The circuit includes a source of a TFT used as a drive transistor that is connected to an anode of a light emitting element, and a drain of the TFT is connected to a power source potential. A capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT used as a switching transistor.

    PIXEL CIRCUIT AND DISPLAY DEVICE
    5.
    发明申请
    PIXEL CIRCUIT AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190130829A1

    公开(公告)日：2019-05-02

    申请号：US16233942

    申请日：2018-12-27

    Applicant: Sony Corporation

    Inventor： Katsuhide UCHINO ,  Junichi YAMASHITA ,  Tetsuro YAMAMOTO

    IPC: G09G3/3233 ,  G09G3/3208 ,  G09G3/30 ,  G09G3/3266

    Abstract: A pixel circuit able to prevent a spread of the terminal voltages of drive transistors inside a panel and in turn able to reliably prevent deterioration of uniformity, wherein a source of a TFT serving as a drive transistor is connected to an anode of a light emitting element, a drain is connected to a power source potential, a capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT serving as a switch transistor and wherein pixel circuit lines are connected by an upper line and bottom line and are arranged in parallel with pixel circuit power source voltage lines so as not to have intersecting parts.

    PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT
    8.
    发明申请
    PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT 有权
    像素电路，显示装置和驱动像素电路的方法

    公开(公告)号：US20130321250A1

    公开(公告)日：2013-12-05

    申请号：US13960172

    申请日：2013-08-06

    Applicant: SONY CORPORATION

    Inventor： Katsuhide UCHINO ,  Junichi YAMASHITA ,  Tetsuro YAMAMOTO

    IPC: G09G3/32

    CPC classification number: G09G3/3233 ,  G09G3/30 ,  G09G3/3258 ,  G09G3/3426 ,  G09G3/36 ,  G09G3/3648 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  H05B33/0896

    Abstract: A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes, wherein a source of a TFT 111 as a drive transistor is connected to an anode of a light emitting element 114, a drain is connected to a power source potential VCC, a capacitor C111 is connected between a gate and source of the TFT 111, and a source potential of the TFT 111 is connected to a fixed potential through a TFT 113 as a switching transistor.

    Abstract translation: 一种像素电路，显示装置和驱动像素电路的方法，即使随着发光元件的电流 - 电压特性的改变，也能够随着亮度的降低而使源极跟随器输出不发生劣化，从而能够使源极跟随器电路 n沟道晶体管，并且能够使用n沟道晶体管作为EL驱动晶体管，同时使用电流阳极 - 阴极电极，其中作为驱动晶体管的TFT 111的源极连接到发光元件114的阳极， 漏极连接到电源电位VCC，电容器C111连接在TFT 111的栅极和源极之间，TFT 111的源极电位通过作为开关晶体管的TFT 113连接到固定电位。

    PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT
    10.
    发明申请
    PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT 有权

    公开(公告)号：US20210118364A1

    公开(公告)日：2021-04-22

    申请号：US17136845

    申请日：2020-12-29

    Applicant: Sony Corporation

    Inventor： Katsuhide UCHINO ,  Junichi YAMASHITA ,  Tetsuro YAMAMOTO

    IPC: G09G3/3233 ,  H05B45/00 ,  G09G3/30 ,  G09G3/34 ,  G09G3/36 ,  G09G3/3258

    Abstract: A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes. The circuit includes a source of a TFT used as a drive transistor that is connected to an anode of a light emitting element, and a drain of the TFT is connected to a power source potential. A capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT used as a switching transistor.

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