Displays with pixel circuits capable of compensating for transistor threshold voltage drift
    1.
    发明授权
    Displays with pixel circuits capable of compensating for transistor threshold voltage drift 有权
    具有能够补偿晶体管阈值电压漂移的像素电路的显示

    公开(公告)号:US09208725B2

    公开(公告)日:2015-12-08

    申请号:US13913668

    申请日:2013-06-10

    CPC classification number: G09G3/3258 G09G3/3233 G09G2300/0852 G09G2300/0861

    Abstract: A display device includes a pixel array. The pixel array includes multiple pixel elements. At least one pixel element includes an OLED, a first transistor, a second transistor, a third transistor, a first capacitor and a second capacitor. The first transistor has a first terminal coupled to an anode of the OLED for driving the OLED. The second transistor is coupled between a second terminal of the first transistor and a reset voltage and has a control terminal receiving a reset signal. The third transistor is coupled between the anode of the OLED and a control terminal of the first transistor and has a control terminal receiving a compensation signal. The first capacitor is coupled between the control terminal of the first transistor and the anode of the OLED. The second capacitor is coupled to the first capacitor and the control terminal of the first transistor.

    Abstract translation: 显示装置包括像素阵列。 像素阵列包括多个像素元件。 至少一个像素元件包括OLED,第一晶体管,第二晶体管,第三晶体管,第一电容器和第二电容器。 第一晶体管具有耦合到用于驱动OLED的OLED的阳极的第一端子。 第二晶体管耦合在第一晶体管的第二端和复位电压之间,并具有接收复位信号的控制端。 第三晶体管耦合在OLED的阳极和第一晶体管的控制端之间,并具有接收补偿信号的控制端。 第一电容器耦合在第一晶体管的控制端和OLED的阳极之间。 第二电容器耦合到第一电容器和第一晶体管的控制端子。

    Display device and light adjusting method thereof
    2.
    发明授权
    Display device and light adjusting method thereof 有权
    显示装置及其调光方法

    公开(公告)号:US09076372B2

    公开(公告)日:2015-07-07

    申请号:US14013997

    申请日:2013-08-29

    Abstract: The present disclosure provides a display device including a light emitting diode and a driving module. The driving module drives the light emitting diode. The driving module includes a first switch circuit, a second switch circuit, and a driver transistor. The first switch circuit selectively writes a gray scale voltage in a first capacitor. The second switch circuit selectively writes an offset voltage in a second capacitor. The driver transistor is coupled to the light emitting diode, the first capacitor, and the second capacitor. The driver transistor adjusts a driving current being outputted to the light emitting diode according to the gray scale voltage and the offset voltage. The gray scale voltage adjusts the voltage difference between the gate and the source of the driver transistor, while the offset voltage adjusts a threshold voltage of the driver transistor.

    Abstract translation: 本公开提供了一种包括发光二极管和驱动模块的显示装置。 驱动模块驱动发光二极管。 驱动模块包括第一开关电路,第二开关电路和驱动晶体管。 第一开关电路在第一电容器中选择性地写入灰度电压。 第二开关电路选择性地将偏移电压写入第二电容器。 驱动晶体管耦合到发光二极管,第一电容器和第二电容器。 驱动晶体管根据灰度级电压和偏移电压来调节驱动电流输出到发光二极管。 灰度电压调节驱动晶体管的栅极和源极之间的电压差,而偏移电压调整驱动晶体管的阈值电压。

    Pixel driving cirucit, pixel driving methods, display panels and electronic devices
    3.
    发明授权
    Pixel driving cirucit, pixel driving methods, display panels and electronic devices 有权
    像素驱动电路,像素驱动方法,显示面板和电子设备

    公开(公告)号:US09076380B2

    公开(公告)日:2015-07-07

    申请号:US13726841

    申请日:2012-12-26

    Abstract: A pixel driving circuit is provided, including first, second, third, fourth, and fifth switching devices and first and second capacitors. The first switching device has a first terminal coupled to a first power source voltage, and a control terminal coupled to a first scan signal line. The second switching device has a first terminal coupled to a second terminal of the first switching device, a second terminal coupled to a first node and an emitting device, and a control terminal coupled to a second node. The third switching device has a first terminal coupled between the first terminal of the second switching device and a second terminal of the first switching device, a second terminal coupled to the second node, and a control terminal coupled to a second scan signal line.

    Abstract translation: 提供了一种像素驱动电路,包括第一,第二,第三,第四和第五开关器件以及第一和第二电容器。 第一开关装置具有耦合到第一电源电压的第一端子和耦合到第一扫描信号线的控制端子。 第二开关装置具有耦合到第一开关装置的第二端子的第一端子,耦合到第一节点和发射装置的第二端子以及耦合到第二节点的控制端子。 第三开关装置具有耦合在第二开关装置的第一端子和第一开关装置的第二端子之间的第一端子,耦合到第二节点的第二端子和耦合到第二扫描信号线的控制端子。

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