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    • 5. 发明授权
    • Thin film transistor circuit, light emitting display apparatus, and driving method thereof
    • 薄膜晶体管电路,发光显示装置及其驱动方法
    • US08654114B2
    • 2014-02-18
    • US12667827
    • 2008-07-29
    • Hisae ShimizuKatsumi AbeRyo Hayashi
    • Hisae ShimizuKatsumi AbeRyo Hayashi
    • G09G5/00
    • G09G3/3258G09G3/3233G09G2300/0417G09G2300/0842G09G2320/0233G09G2320/043
    • In order to suppress an influence of an electrical stress on a TFT characteristic in use of a TFT, a light emitting display apparatus according to the present invention comprises organic EL devices and driving circuits for driving the organic EL devices. The driving circuit includes plural pixels each having a thin film transistor of which a threshold voltage reversibly changes due to the electrical stress applied between a gate terminal and a source terminal, and a voltage applying unit which sets gate potential of the thin film transistor higher than source potential. The voltage applying unit applies the electrical stress between the gate terminal and the source terminal at a time when the thin film transistor is not driven, so as to drive the thin film transistor in a region that the threshold voltage is saturated to the electrical stress.
    • 为了抑制电应力对使用TFT的TFT特性的影响,根据本发明的发光显示装置包括有机EL器件和用于驱动有机EL器件的驱动电路。 驱动电路包括多个像素,每个像素具有薄膜晶体管,其阈值电压由于在栅极端子和源极端子之间施加的电应力而可逆地改变;以及电压施加单元,其将薄膜晶体管的栅极电位设置为高于 源潜力。 电压施加单元在薄膜晶体管未被驱动时在栅极端子和源极端子之间施加电应力,以便在阈值电压饱和到电应力的区域中驱动薄膜晶体管。
    • 8. 发明申请
    • DRIVE CIRCUIT AND DRIVE METHOD OF LIGHT EMITTING DISPLAY APPARATUS
    • 发光显示装置的驱动电路和驱动方法
    • US20110187888A1
    • 2011-08-04
    • US13086226
    • 2011-04-13
    • Hisae ShimizuKatsumi Abe
    • Hisae ShimizuKatsumi Abe
    • H04N5/228G06F3/038G09G3/32
    • G09G3/3233G09G3/3291G09G2300/0417G09G2300/043G09G2300/0819G09G2300/0861G09G2310/0262G09G2320/043
    • A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on supplied current and a drive transistor for supplying the current to the light emitting device, comprises a threshold value correction circuit converting a second signal including a threshold voltage of the drive transistor and a data voltage, the second signal being output from the drive transistor when a first signal including the data voltage is input into the control electrode of the drive transistor, into a third signal including the threshold voltage of an inverted polarity and the data voltage or a voltage corresponding to the data voltage, to output the converted third signal to the pixel circuit. The pixel circuit includes a switch for supplying the third signal to the control electrode of the drive transistor.
    • 一种用于发光显示装置的驱动电路,包括具有发光装置的像素电路,所述发光装置用于发射基于所提供的电流确定的亮度的光和用于向所述发光装置提供电流的驱动晶体管,所述驱动电路包括阈值校正电路转换 包括驱动晶体管的阈值电压的第二信号和数据电压,当包括数据电压的第一信号被输入到驱动晶体管的控制电极时,第二信号从驱动晶体管输出到第三信号,第三信号包括 反转极性的阈值电压和数据电压或对应于数据电压的电压,以将转换的第三信号输出到像素电路。 像素电路包括用于将第三信号提供给驱动晶体管的控制电极的开关。
    • 9. 发明申请
    • DRIVE CIRCUIT AND DRIVE METHOD OF LIGHT EMITTING DISPLAY APPARATUS
    • 发光显示装置的驱动电路和驱动方法
    • US20080225023A1
    • 2008-09-18
    • US12028588
    • 2008-02-08
    • Hisae ShimizuKatsumi Abe
    • Hisae ShimizuKatsumi Abe
    • G06F3/038
    • G09G3/3233G09G3/3291G09G2300/0417G09G2300/043G09G2300/0819G09G2300/0861G09G2310/0262G09G2320/043
    • A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on supplied current and a drive transistor for supplying the current to the light emitting device, comprises a threshold value correction circuit converting a second signal including a threshold voltage of the drive transistor and a data voltage, the second signal being output from the drive transistor when a first signal including the data voltage is input into the control electrode of the drive transistor, into a third signal including the threshold voltage of an inverted polarity and the data voltage or a voltage corresponding to the data voltage, to output the converted third signal to the pixel circuit. The pixel circuit includes a switch for supplying the third signal to the control electrode of the drive transistor.
    • 一种用于发光显示装置的驱动电路,包括具有发光装置的像素电路,所述发光装置用于发射基于所提供的电流确定的亮度的光和用于向所述发光装置提供电流的驱动晶体管,所述驱动电路包括阈值校正电路转换 包括驱动晶体管的阈值电压的第二信号和数据电压,当包括数据电压的第一信号被输入到驱动晶体管的控制电极时,第二信号从驱动晶体管输出到第三信号,第三信号包括 反转极性的阈值电压和数据电压或对应于数据电压的电压,以将转换的第三信号输出到像素电路。 像素电路包括用于将第三信号提供给驱动晶体管的控制电极的开关。
    • 10. 发明授权
    • Drive circuit and drive method of light emitting display apparatus
    • 发光显示装置的驱动电路及驱动方法
    • US08610695B2
    • 2013-12-17
    • US13086226
    • 2011-04-13
    • Hisae ShimizuKatsumi Abe
    • Hisae ShimizuKatsumi Abe
    • G09G5/00
    • G09G3/3233G09G3/3291G09G2300/0417G09G2300/043G09G2300/0819G09G2300/0861G09G2310/0262G09G2320/043
    • A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on supplied current and a drive transistor for supplying the current to the light emitting device, comprises a threshold value correction circuit converting a second signal including a threshold voltage of the drive transistor and a data voltage, the second signal being output from the drive transistor when a first signal including the data voltage is input into the control electrode of the drive transistor, into a third signal including the threshold voltage of an inverted polarity and the data voltage or a voltage corresponding to the data voltage, to output the converted third signal to the pixel circuit. The pixel circuit includes a switch for supplying the third signal to the control electrode of the drive transistor.
    • 一种用于发光显示装置的驱动电路,包括具有发光装置的像素电路,所述发光装置用于发射基于所提供的电流确定的亮度的光和用于向所述发光装置提供电流的驱动晶体管,所述驱动电路包括阈值校正电路转换 包括驱动晶体管的阈值电压的第二信号和数据电压,当包括数据电压的第一信号被输入到驱动晶体管的控制电极时,第二信号从驱动晶体管输出到第三信号,第三信号包括 反转极性的阈值电压和数据电压或对应于数据电压的电压,以将转换的第三信号输出到像素电路。 像素电路包括用于将第三信号提供给驱动晶体管的控制电极的开关。