Active matrix organic light emitting diode (AMOLED) pixel unit driving circuit and method, pixel unit and display device
A technology of a pixel unit and a driving circuit, which is applied in the field of pixel units, display devices, and AMOLED pixel unit driving circuits, can solve the problems of long charging time and slow charging speed, and achieve the effect of speeding up the charging speed.
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[0032] Such as figure 2 As shown, the present invention provides an AMOLED pixel unit driving circuit for driving an OLED, and the AMOLED pixel unit driving circuit includes:
[0033] In the switch unit 21, the first input terminal is connected to a current source that provides a charging current Idata, and the second input terminal is connected to the OLED;
[0034] The storage capacitor Cst has a first end connected to the output end of the switch unit 21, and a second end connected to the low level Vss;
[0035] The gates of the driving thin film transistor T1 and the current mirror thin film transistor T2 are both connected to the first end of the storage capacitor Cst, and the source is connected to the low level Vss;
[0036] And the voltage dividing thin film transistor T3, the gate is connected to the first end of the storage capacitor Cst, the source is connected to the drain of the driving thin film transistor T1, and the drain is connected to the OLED;
[0037] The switch un...
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