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    • 8. 发明授权
    • Pixel circuit and method for driving the same, display panel and display apparatus
    • 像素电路及其驱动方法,显示面板和显示装置
    • US09496293B2
    • 2016-11-15
    • US14366184
    • 2013-11-01
    • BOE TECHNOLOGY GROUP CO., LTD.CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    • Xiaojing QiWen Tan
    • G06F3/038G09G5/00H05B37/02H05B39/04H05B41/36H01L29/12H01L29/786H01L27/12G09G3/32
    • H01L27/1255G09G3/3233G09G2300/0804G09G2300/0842G09G2300/0861G09G2320/0233G09G2320/043
    • A pixel circuit and a method for driving the same, a display panel and a display apparatus are configured to improve the lifespan of the pixel circuit. The pixel circuit comprises: a charging sub-circuit (1), a capacitor (CST), a first driving sub-circuit (2) and a second driving sub-circuit (3); a first terminal of the capacitor (CST) is connected to a first terminal of the first driving sub-circuit (2) and a first terminal of the second driving sub-circuit (3), and a second terminal of the capacitor (CST) is connected to the charging sub-circuit (1); a second terminal of the first driving sub-circuit (2) is connected to a first light emitting device (D1), a second terminal of the second driving sub-circuit (3) is connected to a second light emitting device (D2), wherein a driving current (I1) flowing from the first driving sub-circuit (2) to the first light emitting device (D1) is in an opposite direction to a driving current (I2) flowing from the second driving sub-circuit (3) to the second light emitting device (D2); the charging sub-circuit (1) is configured to charge the capacitor (CST), and when the capacitor (CST) is discharged, the first driving sub-circuit (2) drives the first light emitting device (D1) to emit light or the second driving sub-circuit (3) drives the second light emitting device (D2) to emit light.
    • 像素电路及其驱动方法,显示面板和显示装置被配置为提高像素电路的寿命。 像素电路包括:充电子电路(1),电容器(CST),第一驱动子电路(2)和第二驱动子电路(3); 电容器(CST)的第一端子连接到第一驱动子电路(2)的第一端子和第二驱动子电路(3)的第一端子以及电容器(CST)的第二端子, 连接到充电子电路(1); 第一驱动子电路(2)的第二端子连接到第一发光器件(D1),第二驱动子电路(3)的第二端子连接到第二发光器件(D2) 其中从第一驱动子电路(2)流向第一发光器件(D1)的驱动电流(I1)与从第二驱动子电路(3)流动的驱动电流(I2)相反, 到所述第二发光装置(D2); 充电子电路(1)被配置为对电容器(CST)充电,并且当电容器(CST)放电时,第一驱动子电路(2)驱动第一发光器件(D1)发光或 第二驱动子电路(3)驱动第二发光装置(D2)发光。
    • 9. 发明授权
    • Shift register unit, gate driving circuit and display apparatus
    • 移位寄存器单元,门驱动电路和显示装置
    • US09466254B2
    • 2016-10-11
    • US14429026
    • 2014-06-17
    • BOE TECHNOLOGY GROUP CO., LTD.CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    • Wen TanXiaojing Qi
    • G11C19/00G09G3/36G11C19/28
    • G09G3/3677G09G3/20G09G3/3648G09G2300/0426G09G2300/0871G09G2310/0251G09G2310/0286G09G2310/061G09G2310/08G11C19/184G11C19/28
    • A shift register unit, a gate driving circuit and a display apparatus. The shift register unit comprises a bidirectional scan pre-charging module, a pulling-up module, a pulling-down control module, a reset module and a pulling-down module. A connection point where the bidirectional scan pre-charging module and the pulling-up module are connected serves as a pulling-up control node. A connection point where the pulling-down control module and the pulling-down module are connected serves as a pulling-down control node. The pulling-down control module is configured to perform a pulling-down control according to signals inputted from the second clock signal terminal, the third clock signal terminal, and the fourth clock signal terminal. A bidirectional scanning can be achieved by the bidirectional scan pre-charging module, and the potential at the pulling-up control node and the output signal of the signal output terminal are pulled down to the low level via the pulling-down module, so that the bidirectional pulling-down can be realized. Further, the shift register unit is driven by four clock signal terminals, thus reducing the power consumption of the circuit.
    • 移位寄存器单元,栅极驱动电路和显示装置。 移位寄存器单元包括双向扫描预充电模块,上拉模块,下拉控制模块,复位模块和下拉模块。 连接双向扫描预充电模块和上拉模块的连接点作为上拉控制节点。 下拉控制模块和下拉模块连接的连接点用作下拉控制节点。 下拉控制模块被配置为根据从第二时钟信号端子,第三时钟信号端子和第四时钟信号端子输入的信号执行下拉控制。 可以通过双向扫描预充电模块实现双向扫描,并且通过下拉模块将上拉控制节点处的电位和信号输出端子的输出信号下拉到低电平,使得 可以实现双向下拉。 此外,移位寄存器单元由四个时钟信号端子驱动,从而降低了电路的功耗。