Driving method for light emitting display device

    公开(公告)号:US11238786B2

    公开(公告)日:2022-02-01

    申请号:US17133391

    申请日:2020-12-23

    Abstract: A display device includes the following elements: a light emitting diode; a first transistor including a drain electrode, a source electrode, and a gate electrode, the drain electrode being connected to the light emitting diode; a second transistor connected between a data line and the source electrode; a third transistor connected between the drain electrode and the gate electrode; and a fourth transistor connected between a first initialization voltage source and the gate electrode. The third transistor is off for a first period, on for a second period immediately following the first period, and off for a third period immediately following the second period. The fourth transistor is off for a fourth period, on for a fifth period immediately following the fourth period, and off for a sixth period immediately following the fifth period. The second period overlaps the fifth period.

    Display device having a plurality of non-emission periods and driving method thereof

    公开(公告)号:US11810517B2

    公开(公告)日:2023-11-07

    申请号:US17860110

    申请日:2022-07-08

    CPC classification number: G09G3/3266 G09G3/3275 G09G2310/0278

    Abstract: A display device includes a pixel having a first transistor connected between first and second nodes to generate a driving current; an emission driver that supplies an emission control signal including an off-duty corresponding to first and second gate-off periods to an emission control line during a frame period; a scan driver that supplies first to fourth scan signals to the first to fourth scan lines in a first non-emission period, respectively, and that supplies the first scan signal to the first scan line in a second non-emission period; a data driver that supplies a data signal to the data line; and a controller adjusting the off-duty of the emission control signal that is a width of each of the first and second non-emission periods in response to a dimming signal, and that controls a timing at which the first scan signal is supplied in the second non-emission period.

    Protection circuit and organic light emitting display device including the same

    公开(公告)号:US10438531B2

    公开(公告)日:2019-10-08

    申请号:US15227551

    申请日:2016-08-03

    Abstract: An organic light emitting display device includes a display panel, a pad part positioned at one side of the display panel and having a plurality of pads arranged to receive driving power and driving signals, a plurality of signal input lines arranged to transmit the driving power and the driving signal from the pad part to the display panel, and a protection circuit connected to one or more of the signal input lines, wherein the protection circuit includes a first protection transistor including a gate electrode, a first electrode, and a second electrode, wherein the signal input lines include a first clock signal input line, the first electrode is connected to the first clock signal input signal line, and the second electrode is connected to a first power source.

    Organic light emitting display device

    公开(公告)号:US09893136B2

    公开(公告)日:2018-02-13

    申请号:US15055258

    申请日:2016-02-26

    CPC classification number: H01L27/3265 G09G3/32 H01L27/3276

    Abstract: An organic light emitting display device includes a substrate on which is included pixel columns extending in a column direction and adjacent to each other in a row direction, data lines extending in the column direction and adjacent to each other and between the pixel columns in the row direction, a power source line extending in the column direction, a scan line extending in the row direction, a switching transistor connected to the scan line and one of the data lines, a driving transistor connected to the switching transistor, an OLED connected to the driving transistor, and a storage capacitor including a first storage capacitor plate and a second storage capacitor plate overlapping the first storage capacitor plate in a thickness direction, connected to the power source line, and having a portion extending in the column direction between and not overlapping the data lines in the thickness direction.

    DISPLAY DEVICE
    5.
    发明申请
    DISPLAY DEVICE 有权
    显示设备

    公开(公告)号:US20160163243A1

    公开(公告)日:2016-06-09

    申请号:US14680022

    申请日:2015-04-06

    Abstract: A display device comprises a display panel including a plurality of active pixels and a plurality of dummy pixels adjacent to the plurality of active pixels and a control unit controlling a pixel driving circuit formed in each of the active pixels and a dummy driving circuit formed in each of the dummy pixels. The dummy driving circuit includes a dummy driving transistor, an A dummy transistor, and a B dummy transistor, and a control terminal of the A dummy transistor is connected to a control terminal of the dummy driving transistor, and an input terminal of the A dummy transistor is connected to an output terminal of the B dummy transistor, and an output terminal of the A dummy transistor is connected to an output terminal of the dummy driving transistor.

    Abstract translation: 显示装置包括:显示面板,包括多个有源像素和与多个有源像素相邻的多个虚拟像素;以及控制单元,控制形成在每个有源像素中的像素驱动电路和形成在每个有源像素中的虚拟驱动电路 的虚拟像素。 虚拟驱动电路包括虚拟驱动晶体管,A虚拟晶体管和B虚拟晶体管,并且A虚拟晶体管的控制端子连接到虚拟驱动晶体管的控制端子,并且A虚拟的输入端子 晶体管连接到B虚拟晶体管的输出端,A虚拟晶体管的输出端连接到虚拟驱动晶体管的输出端。

    Display device
    6.
    发明授权

    公开(公告)号:US09905165B2

    公开(公告)日:2018-02-27

    申请号:US14680022

    申请日:2015-04-06

    Abstract: A display device comprises a display panel including a plurality of active pixels and a plurality of dummy pixels adjacent to the plurality of active pixels and a control unit controlling a pixel driving circuit formed in each of the active pixels and a dummy driving circuit formed in each of the dummy pixels. The dummy driving circuit includes a dummy driving transistor, an A dummy transistor, and a B dummy transistor, and a control terminal of the A dummy transistor is connected to a control terminal of the dummy driving transistor, and an input terminal of the A dummy transistor is connected to an output terminal of the B dummy transistor, and an output terminal of the A dummy transistor is connected to an output terminal of the dummy driving transistor.

    Display device
    7.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号:US09495903B2

    公开(公告)日:2016-11-15

    申请号:US14678612

    申请日:2015-04-03

    Abstract: A display device including a display area and a non-display area surrounding the display area. The non-display area includes a test data line (TDL) which receives a test data signal from an external source, a plurality of connection line units (CLUs) which connect the data lines and the TDL, and a dummy line unit which is formed in the non-display area. Each of the CLUs includes a test switch having an input terminal connected to the TDL, an output terminal connected to one of a plurality of data lines disposed in the display area, and a control terminal connected to a test switch control line which receives a test switch control signal from an external source. At least one of the CLUs includes a disconnection portion which interrupts the TDL, wherein both ends of the disconnection portion are connected to the dummy line unit by bypass connection lines, respectively.

    Abstract translation: 一种显示装置,包括显示区域和围绕显示区域的非显示区域。 非显示区域包括从外部源接收测试数据信号的测试数据线(TDL),连接数据线和TDL的多个连接线单元(CLU)和形成的虚拟线单元 在非显示区域。 每个CLU包括测试开关,其具有连接到TDL的输入端子,连接到设置在显示区域中的多条数据线之一的输出端子以及连接到测试开关控制线路的控制端子,该测试开关控制线路接收测试 从外部源切换控制信号。 CLU中的至少一个包括中断TDL的断开部分,其中断开部分的两端分别通过旁路连接线连接到虚拟线路单元。

    DISPLAY DEVICE
    8.
    发明申请
    DISPLAY DEVICE 有权
    显示设备

    公开(公告)号:US20160140896A1

    公开(公告)日:2016-05-19

    申请号:US14678612

    申请日:2015-04-03

    Abstract: A display device including a display area and a non-display area surrounding the display area. The non-display area includes a test data line (TDL) which receives a test data signal from an external source, a plurality of connection line units (CLUs) which connect the data lines and the TDL, and a dummy line unit which is formed in the non-display area. Each of the CLUs includes a test switch having an input terminal connected to the TDL, an output terminal connected to one of a plurality of data lines disposed in the display area, and a control terminal connected to a test switch control line which receives a test switch control signal from an external source. At least one of the CLUs includes a disconnection portion which interrupts the TDL, wherein both ends of the disconnection portion are connected to the dummy line unit by bypass connection lines, respectively.

    Abstract translation: 一种显示装置,包括显示区域和围绕显示区域的非显示区域。 非显示区域包括从外部源接收测试数据信号的测试数据线(TDL),连接数据线和TDL的多个连接线单元(CLU)和形成的虚拟线单元 在非显示区域。 每个CLU包括测试开关,其具有连接到TDL的输入端子,连接到设置在显示区域中的多条数据线之一的输出端子以及连接到测试开关控制线路的控制端子,该测试开关控制线路接收测试 从外部源切换控制信号。 CLU中的至少一个包括中断TDL的断开部分,其中断开部分的两端分别通过旁路连接线连接到虚拟线路单元。

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