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    • 4. 发明授权
    • Organic light emitting device pixel circuit and driving method therefor
    • 有机发光器件像素电路及其驱动方法
    • US07414599B2
    • 2008-08-19
    • US10886014
    • 2004-07-06
    • Ho-Kyoon ChungYang-Wan KimChoon-Yul OhOh-Kyong KwonSang-Moo Choi
    • Ho-Kyoon ChungYang-Wan KimChoon-Yul OhOh-Kyong KwonSang-Moo Choi
    • G09G3/30
    • G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0251G09G2310/0262G09G2320/043G09G2320/045
    • A pixel circuit in an organic light emitting device capable of realizing high gradation representation by self-compensating a threshold voltage, and a method for driving the same. The pixel circuit includes an electroluminescent element for emitting light in response to an applied driving current. A first transistor delivers a data signal voltage in response to a current scan line signal. A second transistor generates a driving current to drive the electroluminescent element in response to the data signal voltage. A third transistor connects the second transistor in the form of a diode in response to a current scan signal to self-compensate the threshold voltage of the second transistor. A capacitor stores the data signal voltage delivered to the second transistor. A fourth transistor delivers a power supply voltage to the second transistor in response to a current light-emitting signal. A fifth transistor provides the driving current, provided from the second transistor, for the electroluminescent element in response to the current light-emitting signal.
    • 能够通过自补偿阈值电压来实现高灰度表示的有机发光装置中的像素电路及其驱动方法。 像素电路包括用于响应于施加的驱动电流发光的电致发光元件。 第一晶体管响应于当前的扫描线信号传送数据信号电压。 第二晶体管响应于数据信号电压产生驱动电流以驱动电致发光元件。 第三晶体管响应于当前扫描信号而以二极管的形式连接第二晶体管,以自补偿第二晶体管的阈值电压。 电容器存储传送到第二晶体管的数据信号电压。 第四晶体管响应于当前的发光信号而向第二晶体管提供电源电压。 响应于当前的发光信号,第五晶体管提供从第二晶体管提供的用于电致发光元件的驱动电流。
    • 6. 发明申请
    • Flat panel display device and method of fabricating the same
    • 平板显示装置及其制造方法
    • US20060145150A1
    • 2006-07-06
    • US11365498
    • 2006-03-02
    • Jin-Woo ParkHo-Kyoon Chung
    • Jin-Woo ParkHo-Kyoon Chung
    • H01L29/08
    • H01L51/524H01L51/5225
    • An organic light emitting device, and a method of fabricating the same, has a cathode electrode that can prevent oxygen or moisture from infiltrating. The organic light emitting device of the present invention has a lower electrode, an organic thin film layer and an upper electrode successively formed on the substrate. The upper electrode has at least two-layered thin films having different grain density and grain size. A lower film of the at least two-layered thin films of the upper electrode has a first Al thin film having a lower grain density and larger grain size than an upper of the at least two-layered thin films. The upper film has a second Al thin film having relatively higher grain density and smaller grain size than the first Al thin film.
    • 有机发光器件及其制造方法具有能够防止氧气或水分渗透的阴极电极。 本发明的有机发光元件具有在基板上依次形成的下电极,有机薄膜层和上电极。 上部电极具有至少两层具有不同晶粒密度和晶粒尺寸的薄膜。 上部电极的至少两层薄膜的下部膜具有第一Al薄膜,其具有比上述至少两层薄膜更低的晶粒密度和更大的晶粒尺寸。 上部膜具有比第一Al薄膜具有相对更高的晶粒密度和更小晶粒尺寸的第二Al薄膜。