Abstract: A pixel driving circuit is disclosed, including: a driving switch, connected between a driving power source and an OLED; a first switch, connected between the drain of the driving switch and the driving power source for inputting a first control signal; a control circuit, connected between the drain and gate of the driving switch, for inputting a second control signal and outputting a compensation current to compensate threshold voltage drift of the driving switch; a storage unit, connected between the source of a second switch and gate of the first switch, for storing a compensation voltage of compensation current compensating the driving switch. A display panel and pixel driving method are also disclosed.

Abstract: A pixel driving circuit is disclosed, including: a driving switch, connected between a driving power source and an OLED; a first switch, connected between the source and drain of the driving switch, and being a transistor of the same model as the driving switch; a control circuit, connected between the drain and source of the first switch, for inputting a first control signal and outputting a compensation current to compensate threshold voltage drift of the first switch; a storage unit, connected between the source of a second switch and gate of the first switch, for storing a compensation voltage of compensation current compensating the first switch; the gate of second switch being for inputting a second control signal and the drain for inputting a data signal, the storage unit being for storing a data voltage generated by the data signal. A display panel and pixel driving method are disclosed.

Abstract: The invention discloses an AMOLED pixel driver circuit and pixel driving method, by using a pixel driver circuit of 3T2C structure to effectively compensate threshold voltage of driving TFT in each pixel; through adding a third TFT (T3) and introducing control signal voltage (Vc) to control the third TFT (T3) to prevent current from flowing through in the threshold voltage detection phase and threshold voltage compensation phase so as to reduce the complexity of the power supply (Vdd); by adding a second capacitor (C2) to regulate the influence on the source voltage of the driving TFT by the data signal voltage (VData) so as to reduce the data signal complexity. As a result, the data signal only needs to switch once.

Abstract: A pixel structure of an organic light emitting diode (OLED) display panel and a manufacturing method thereof are disclosed. The pixel structure comprises a pixel region, anode conductive layers, pixel units, and a cathode conductive layer. The pixel region comprises sub-pixel regions arranged in sequence, at least two adjacent sub-pixel regions defined as a sub-pixel region group are disposed integrally. The anode conductive layers are disposed in the sub-pixel regions respectively, and separated from each other. The cathode conductive layer is electrically connected with the anode conductive layers to control the pixel units. Each of the pixel units comprises sub-pixels and is disposed in the pixel region. Each of the sub-pixels is disposed in one of the sub-pixel regions. The sub-pixels are formed integrally and have a same color in the sub-pixel region group. The pixel unit comprises a hole injection layer, a luminous layer and an electron injection layer.

Abstract: A pixel driving circuit and an OLED display are provided. The pixel driving circuit includes a first TFT, a second TFT, a third TFT, a fourth TFT, a capacitor, and an OLED. A gate of the third TFT is coupled to the scanning signal. A source of the third TFT is coupled to a drain of the fourth TFT. A gate of the fourth TFT is coupled to a data signal and a source of the fourth is coupled to a second reference voltage signal. The fourth TFT controls the electric current of the first TFT with the data signal and the second reference signal during the compensation stage of threshold voltage. Further, the compensation voltage of the first TFT is compensated.

Abstract: The invention discloses an AMOLED pixel driver circuit and pixel driving method, by using a pixel driver circuit of 3T2C structure to effectively compensate threshold voltage of driving TFT in each pixel; through adding a third TFT (T3) and introducing control signal voltage (Vc) to control the third TFT (T3) to prevent current from flowing through in the threshold voltage detection phase and threshold voltage compensation phase so as to reduce the complexity of the power supply (Vdd); by adding a second capacitor (C2) to regulate the influence on the source voltage of the driving TFT by the data signal voltage (VData) so as to reduce the data signal complexity. As a result, the data signal only needs to switch once.

Abstract: The invention discloses an AMOLED pixel driver circuit and pixel driving method, by using a pixel driver circuit of 4T1C or 4T2C structure to effectively compensate threshold voltage of driving TFT in each pixel; through adding a third TFT (T3) and a fourth TFT (T4) and introducing the first scan signal (SEL1) to control the third TFT (T3) and the fourth TFT (T4) to respectively writing the initialization signal (INI) to initialize the gate and the source of the driving TFT in reset phase so as to reduce the complexity of the power supply signal so that the circuit can use DC power supply directly; by adding a second capacitor (C2) to regulate the influence on the source voltage of the driving TFT by the data signal (DATA) so as to reduce the data signal complexity. As a result, the data signal only needs to switch once.

Abstract: Disclosed are an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizes the 4T2C structure, and comprises: a first thin film transistor (T1), a second thin film transistor (T2), a third thin film transistor (T3), a fourth thin film transistor (T4), a first capacitor (C1), a second capacitor (C2) and an organic light emitting diode (D1); the nth scan signal (SCAN(n)) and the n+1th scan signal (SCAN(n+1)) are combined with each other, and correspond to a threshold voltage sensing stage, a holding stage, a programming stage and a drive stage one after another. In comparison with the pixel driving circuit of the 5T2C structure, the corresponding thin film transistor is controlled merely with arranging the scan signal. There will be the compensation function, and the amount of the control signals can be decreased, and the circuit structure is simplified and the cost is decreased.

Abstract: The present disclosure relates to a pixel compensation circuit, a scanning driving circuit and a flat display device. Control end of first controllable transistor connects to first scanning line, first end of first controllable transistor connects to data line; control end of driving transistor connects to second end of first controllable transistor, first end of driving transistor connects to first voltage end; control end of second controllable transistor connects to second scanning line, first end of second controllable transistor connects to second end of driving transistor; anode of OLED connects to second end of second controllable transistor, cathode of OLED is grounded; control end of driving transistor connects to first end of second controllable transistor through first capacitor, first end of second controllable transistor connects to second voltage end through second capacitor.

Abstract: An AMOLED pixel driving circuit involves a 4T2C structure, including first to fourth thin film transistors, first and second capacitors, and an organic light emitting diode. First and second global signals and a reference voltage are supplied to the circuit. The third thin film transistor is arranged to selectively supply the reference voltage to a first node in order to simplify a data signal voltage supplied. The fourth thin film transistor is selectively conducted on such that writing of the data signal voltage into the first thin film transistor, which functions as a driving thin film transistor, is separated from a reset stage and a threshold voltage detection stage to thereby help increase reset time and compensation time for effective compensation of variation of the threshold voltage of the drive thin film transistor, making display brightness of the AMOLED uniform and display quality improved.

Abstract: The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizes the 4T2C structure, comprising a first, a second, a third, a fourth thin film transistors (T1, T2, T3, T4), a first, a second capacitor (C1, C2) and an organic light emitting diode (OLED) with introducing a first, a second global signals (Vselx, Vsely) and a reference voltage (Vref); by providing the reference voltage (Vref) to the first node (a) via the third thin film transistor (T3), the data signal voltage (Vdata) can be simplified to diminish the complexity of the data signal voltage (Vdata). The process of writing the data signal voltage (Vdata) into the first thin film transistor T1, i.e. the driving the thin film transistor is separated from the reset stage (Reset) and the threshold voltage detection stage (Vth sensing) with the fourth thin film transistor (T4).

Abstract: The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizing the 3T1C structure comprises: a first thin film transistor (T1), a second thin film transistor (T2), a third thin film transistor (T3), a storage capacitor (Cs) and an organic light emitting diode (OLED), and the second scan signal voltage (Vsel2) in introduced. The third thin film transistor (T3) provides initial low voltage level (Vini) of the data signal voltage (VData) to the source of the first thin film transistor (T1), i.e. the drive thin film transistor in the reset stage, which can effectively compensate the threshold voltage changes of the drive thin film transistor for diminishing the complexity of the power supply voltage signal.

Abstract: The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizes the 4T2C structure, comprising a first, a second, a third, a fourth thin film transistors (T1, T2, T3, T4), a first, a second capacitor (C1, C2) and an organic light emitting diode (OLED) with introducing a first, a second global signals (Vselx, Vsely) and a reference voltage (Vref); by providing the reference voltage (Vref) to the first node (a) via the third thin film transistor (T3), the data signal voltage (Vdata) can be simplified to diminish the complexity of the data signal voltage (Vdata). The process of writing the data signal voltage (Vdata) into the first thin film transistor T1, i.e. the driving the thin film transistor is separated from the reset stage (Reset) and the threshold voltage detection stage (Vth sensing) with the fourth thin film transistor (T4).