Display device having compensation circuit and driving method thereof

    公开(公告)号:US09875687B2

    公开(公告)日:2018-01-23

    申请号:US14816910

    申请日:2015-08-03

    Abstract: Exemplary embodiments of the present invention disclose a display device, and a method of driving the same. The display device includes a display unit including pixels included in one or more deterioration region groups and pixels included in one or more reference groups corresponding to the deterioration region groups, a sensing unit configured to sense a current flowing through an organic light emitting diode of each of the deterioration region groups and each of the reference groups and provide current information about the deterioration region group and current information about the reference group. Exemplary embodiments of the present invention also provide a compensation circuit configured to convert first data supplied from the outside into second data by using compensation data corresponding to a compensation prediction curve and output the second data, and compare the current information about the deterioration region group and the current information about the reference group and correct the compensation prediction curve for the deterioration region group; and a data driver configured to supply the second data to the display unit through data lines as data signals.

    Pixel, display device including the same, and driving method thereof
    34.
    发明授权
    Pixel, display device including the same, and driving method thereof 有权
    像素,包括其的显示装置及其驱动方法

    公开(公告)号:US09324265B2

    公开(公告)日:2016-04-26

    申请号:US13765672

    申请日:2013-02-12

    Inventor: Sang-Myeon Han

    Abstract: A plurality of pixels each including a first capacitor coupled between a data line and a first node, a switching transistor for electrically connecting the first node and a second node, a second capacitor coupled between the second node and a third node, an initialization transistor for transmitting a first power source voltage to the second node, and a driving transistor including a gate electrode coupled to the third node to control a driving current to an organic light emitting diode, in which light emission of the organic light emitting diode by the driving current is concurrently performed in the plurality of pixels according to data signals transmitted during a previous frame.

    Abstract translation: 多个像素,每个像素包括耦合在数据线和第一节点之间的第一电容器,用于电连接第一节点和第二节点的开关晶体管,耦合在第二节点和第三节点之间的第二电容器,用于 向第二节点传输第一电源电压,以及驱动晶体管,其包括耦合到第三节点的栅电极以控制到有机发光二极管的驱动电流,其中有机发光二极管通过驱动电流发光 根据在前一帧期间发送的数据信号在多个像素中同时执行。

    Organic light emitting diode (OLED) pixel, display device including the same and driving method thereof
    36.
    发明授权
    Organic light emitting diode (OLED) pixel, display device including the same and driving method thereof 有权
    有机发光二极管(OLED)像素,包括其的显示装置及其驱动方法

    公开(公告)号:US08982019B2

    公开(公告)日:2015-03-17

    申请号:US13794082

    申请日:2013-03-11

    Inventor: Sang-Myeon Han

    Abstract: An organic light emitting diode (OLED) display device includes a plurality of OLED pixels. In one aspect, each pixel respectively includes a first capacitor connected between a data line and a first node, a switching transistor connecting the first node and a second node, a second capacitor connected between the second node and a third node, a driving transistor having a gate electrode connected to the third node and controlling a driving current flowing from a first power source voltage to an OLED, and a reference voltage transistor transmitting a reference voltage to the first node. When a light emitting step occurs in which the OLED emits light, it is simultaneously performed in a plurality of pixels by use of a driving current, the switching transistor is turned off and the reference voltage transistor is turned on such that the reference voltage is transmitted to the first node, and a data voltage corresponding to a scan signal of a gate-on voltage respectively corresponding to a plurality of pixels is stored to the first capacitor. Aspects also include pixel circuits and methods of driving the pixels in the display.

    Abstract translation: 有机发光二极管(OLED)显示装置包括多个OLED像素。 在一个方面,每个像素分别包括连接在数据线和第一节点之间的第一电容器,连接第一节点和第二节点的开关晶体管,连接在第二节点和第三节点之间的第二电容器,驱动晶体管具有 连接到第三节点并控制从第一电源电压流向OLED的驱动电流的栅电极以及向第一节点传输参考电压的参考电压晶体管。 当发生OLED发光的步骤时,通过使用驱动电流同时在多个像素中执行发光步骤,开关晶体管截止,基准电压晶体管导通,使得参考电压被传输 并且将与分别对应于多个像素的栅极导通电压的扫描信号相对应的数据电压存储到第一电容器。 方面还包括像素电路和驱动显示器中的像素的方法。

    PIXEL, DISPLAY DEVICE INCLUDING THE SAME AND DRIVING METHOD THEREOF
    37.
    发明申请
    PIXEL, DISPLAY DEVICE INCLUDING THE SAME AND DRIVING METHOD THEREOF 有权
    像素,包括其的显示装置及其驱动方法

    公开(公告)号:US20140313232A1

    公开(公告)日:2014-10-23

    申请号:US13972771

    申请日:2013-08-21

    Inventor: Sang-Myeon Han

    Abstract: A display device comprising a plurality of pixels is disclosed. In one aspect, each pixel of the display device comprises a first capacitor connected between a data line and a first node, a reference voltage transistor configured to apply a reference voltage on the first node, a driving transistor having a gate connected to a second node and configured to control a drive current flowing from a first power supply voltage to an organic light emitting diode in response to a voltage of the second node applied to the gate of the driving transistor, a light emitting transistor configured to apply the first power supply voltage to an electrode of the driving transistor in response to a light emission signal applied to a gate of the light emitting transistor, a second capacitor connected between the second node and an anode of the organic light emitting diode, and a relay transistor configured to electrically connect the first node and the second node in response to a write signal applied to a gate of the relay transistor.

    Abstract translation: 公开了一种包括多个像素的显示装置。 一方面,显示装置的每个像素包括连接在数据线和第一节点之间的第一电容器,被配置为在第一节点上施加参考电压的参考电压晶体管,具有连接到第二节点的栅极的驱动晶体管 并且被配置为响应于施加到驱动晶体管的栅极的第二节点的电压来控制从第一电源电压流向有机发光二极管的驱动电流;配置为施加第一电源电压 响应于施加到发光晶体管的栅极的发光信号而连接到驱动晶体管的电极,连接在第二节点和有机发光二极管的阳极之间的第二电容器,以及被配置为电连接 所述第一节点和所述第二节点响应于施加到所述继电器晶体管的栅极的写入信号。

    ORGANIC LIGHT EMITTING DIODE (OLED) PIXEL, DISPLAY DEVICE INCLUDING THE SAME AND DRIVING METHOD THEREOF
    38.
    发明申请
    ORGANIC LIGHT EMITTING DIODE (OLED) PIXEL, DISPLAY DEVICE INCLUDING THE SAME AND DRIVING METHOD THEREOF 有权
    有机发光二极管(OLED)像素,包括其的显示装置及其驱动方法

    公开(公告)号:US20140139503A1

    公开(公告)日:2014-05-22

    申请号:US13794082

    申请日:2013-03-11

    Inventor: Sang-Myeon Han

    Abstract: An organic light emitting diode (OLED) display device includes a plurality of OLED pixels. In one aspect, each pixel respectively includes a first capacitor connected between a data line and a first node, a switching transistor connecting the first node and a second node, a second capacitor connected between the second node and a third node, a driving transistor having a gate electrode connected to the third node and controlling a driving current flowing from a first power source voltage to an OLED, and a reference voltage transistor transmitting a reference voltage to the first node. When a light emitting step occurs in which the OLED emits light, it is simultaneously performed in a plurality of pixels by use of a driving current, the switching transistor is turned off and the reference voltage transistor is turned on such that the reference voltage is transmitted to the first node, and a data voltage corresponding to a scan signal of a gate-on voltage respectively corresponding to a plurality of pixels is stored to the first capacitor. Aspects also include pixel circuits and methods of driving the pixels in the display.

    Abstract translation: 有机发光二极管(OLED)显示装置包括多个OLED像素。 在一个方面,每个像素分别包括连接在数据线和第一节点之间的第一电容器,连接第一节点和第二节点的开关晶体管,连接在第二节点和第三节点之间的第二电容器,驱动晶体管具有 连接到第三节点并控制从第一电源电压流向OLED的驱动电流的栅电极以及向第一节点传输参考电压的参考电压晶体管。 当发生OLED发光的步骤时,通过使用驱动电流同时在多个像素中执行发光步骤,开关晶体管截止,基准电压晶体管导通,使得参考电压被传输 并且将与分别对应于多个像素的栅极导通电压的扫描信号相对应的数据电压存储到第一电容器。 方面还包括像素电路和驱动显示器中的像素的方法。

    PIXEL, DISPLAY DEVICE INCLUDING THE SAME, AND DRIVING METHOD THEREOF
    39.
    发明申请
    PIXEL, DISPLAY DEVICE INCLUDING THE SAME, AND DRIVING METHOD THEREOF 有权
    像素,包括其的显示装置及其驱动方法

    公开(公告)号:US20140118229A1

    公开(公告)日:2014-05-01

    申请号:US13765672

    申请日:2013-02-12

    Inventor: Sang-Myeon Han

    Abstract: A plurality of pixels each including a first capacitor coupled between a data line and a first node, a switching transistor for electrically connecting the first node and a second node, a second capacitor coupled between the second node and a third node, an initialization transistor for transmitting a first power source voltage to the second node, and a driving transistor including a gate electrode coupled to the third node to control a driving current to an organic light emitting diode, in which light emission of the organic light emitting diode by the driving current is concurrently performed in the plurality of pixels according to data signals transmitted during a previous frame.

    Abstract translation: 多个像素,每个像素包括耦合在数据线和第一节点之间的第一电容器,用于电连接第一节点和第二节点的开关晶体管,耦合在第二节点和第三节点之间的第二电容器,用于 向第二节点传输第一电源电压,以及驱动晶体管,其包括耦合到第三节点的栅电极以控制到有机发光二极管的驱动电流,其中有机发光二极管通过驱动电流发光 根据在前一帧期间发送的数据信号在多个像素中同时执行。

    Organic light emitting display device and driving method thereof
    40.
    发明授权
    Organic light emitting display device and driving method thereof 有权
    有机发光显示装置及其驱动方法

    公开(公告)号:US08704738B2

    公开(公告)日:2014-04-22

    申请号:US13896248

    申请日:2013-05-16

    Abstract: An organic light emitting display device includes: a display unit including pixels coupled to scan lines and data lines; one or more control lines coupled to the pixels; a control line driver for supplying control signals to the pixels through the control lines; a first power driver for applying a first power having a low voltage level or a high voltage level to the pixels; and a second power driver for applying a second power having a low voltage level or a high voltage level to the pixels, in which each of the pixels includes: an organic light emitting diode (OLED); a driving transistor for controlling an amount of current supplied to the OLED; and an initializing transistor coupled to a gate electrode of the driving transistor and for supplying a reset voltage to the gate electrode of the driving transistor.

    Abstract translation: 有机发光显示装置包括:显示单元,包括耦合到扫描线和数据线的像素; 耦合到像素的一个或多个控制线; 控制线驱动器,用于通过控制线向像素提供控制信号; 第一功率驱动器,用于将具有低电压电平或高电压电平的第一功率施加到所述像素; 以及第二功率驱动器,用于向像素施加具有低电压电平或高电压电平的第二功率,其中每个像素包括:有机发光二极管(OLED); 用于控制提供给OLED的电流量的驱动晶体管; 以及耦合到所述驱动晶体管的栅电极并用于向所述驱动晶体管的栅电极提供复位电压的初始化晶体管。

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