公开(公告)号：US20140176523A1

公开(公告)日：2014-06-26

申请号：US13959363

申请日：2013-08-05

Applicant: LG DISPLAY CO., LTD.

Inventor： Sanghyeon KWAK

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/043

Abstract: Discussed is an OLED display device. The OLED display device includes a first transistor, a driving transistor, a first capacitor, a second transistor, an OLED, and a third transistor. The first transistor supplies a data voltage or a reference voltage to a first node according to a scan signal. A gate of the driving transistor is connected to the first node, a source of the driving transistor is connected to a second node, and a drain of the driving transistor is connected to a fourth node. The first capacitor is connected between the first and second nodes. The second transistor supplies a high-level source voltage to the second node. The OLED emits light with a difference voltage between voltages of the first and second nodes. The third transistor connects the fourth node to a fifth node according to a second emission control signal.

Abstract translation: 讨论的是OLED显示设备。 OLED显示装置包括第一晶体管，驱动晶体管，第一电容器，第二晶体管，OLED和第三晶体管。 第一晶体管根据扫描信号向第一节点提供数据电压或参考电压。 驱动晶体管的栅极连接到第一节点，驱动晶体管的源极连接到第二节点，驱动晶体管的漏极连接到第四节点。 第一电容器连接在第一和第二节点之间。 第二晶体管向第二节点提供高电平源电压。 OLED在第一和第二节点的电压之间发射具有差值电压的光。 第三晶体管根据第二发射控制信号将第四节点连接到第五节点。

公开(公告)号：US20140168190A1

公开(公告)日：2014-06-19

申请号：US13960300

申请日：2013-08-06

Applicant: LG DISPLAY CO., LTD.

Inventor： Sanghyeon KWAK ,  Jin-Hyun JUNG

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0866 ,  G09G2320/043

Abstract: Discussed is an OLED display device and a method of driving the same. The OLED display device includes first to third transistors, a capacitor, a driving transistor, and an OLED. The first transistor supplies a data voltage to a first node according to a first scan signal. A first electrode of the second transistor is connected to the first node, and a gate of the second transistor is connected to a second electrode of the second transistor. The third transistor initializes a voltage of a second node according to a second scan signal. One end of the capacitor is connected to the second node, and the other end of the capacitor is connected to a third node. A gate of the driving transistor is connected to the second node, and a source of the driving transistor is connected to the third node. The OLED emits light.

Abstract translation: 讨论的是OLED显示装置及其驱动方法。 OLED显示装置包括第一至第三晶体管，电容器，驱动晶体管和OLED。 第一晶体管根据第一扫描信号向第一节点提供数据电压。 第二晶体管的第一电极连接到第一节点，第二晶体管的栅极连接到第二晶体管的第二电极。 第三晶体管根据第二扫描信号初始化第二节点的电压。 电容器的一端连接到第二节点，电容器的另一端连接到第三节点。 驱动晶体管的栅极连接到第二节点，并且驱动晶体管的源极连接到第三节点。 OLED发光。

公开(公告)号：US20140145917A1

公开(公告)日：2014-05-29

申请号：US13858709

申请日：2013-04-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Sanghyeon KWAK

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0256 ,  G09G2320/0233 ,  G09G2320/045

Abstract: Discussed is an OLED display device that can compensate for the deviation of a threshold voltage and also prevent deterioration of an OLED, and a method of driving the same, wherein the OLED display device includes first to fifth transistors, a driving transistor including gate, source and drain electrodes, a capacitor for sensing a threshold voltage of the driving transistor, and an OLED.

Abstract translation: 讨论了可以补偿阈值电压的偏差并且还防止OLED的劣化的OLED显示装置及其驱动方法，其中OLED显示装置包括第一至第五晶体管，包括栅极，源极的驱动晶体管 和漏电极，用于感测驱动晶体管的阈值电压的电容器和OLED。