Shift register, drive device and displayer

Abstract

A shift register, a driving apparatus and a display. The shift register comprises: an evaluating unit for receiving a second clock signal and outputting an output signal to a signal output terminal under a control of an input signal; a reset controlling unit, a first terminal of which being connected to the evaluating unit and receiving the input signal, a second terminal of which receiving a first clock signal, a third terminal of which receiving a low level signal, for inputting a control signal to a reset unit under controls of the input signal and the first clock signal; the reset unit for receiving a high level signal and resetting the signal output terminal under a control of the control signal input by the reset controlling unit. When the shift register evaluates the output terminal, the gate of the reset transistor (4) is charged rapidly, which renders that the reset transistor (4) is turned off in time. Therefore, the great instantaneous current generated when the reset transistor (4) and the evaluating transistor (6) are turned on at the same time is avoided and circuit elements are protected while the power consumption is reduced. The shift register further utilizes an output signal feedback and a dual-gate technique of the input transistors so as to decrease an influence due to a leakage current from the input transistors, which may reduce the power consumption and enhance the stability.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a shift register, a driving device and a display. Background technique [0002] During the use of LCD (Liquid Crystal Display, liquid crystal display) or OLED (Organic Light-Emitting Diode, organic light-emitting diode) display devices, the scanning signal of each row of scanning lines is controlled by the driving device to realize progressive (or interlaced) scanning. For example, in an active-driven organic light-emitting display (Active Matrix OLED), the scan lines of each row (scan line) and the data lines (data line) of each column cross to form an active matrix; generally, the method of row-by-row scanning is adopted, sequentially Turn on the gate transistors of each row, transmit the voltage on the data line to the pixel drive transistor, and convert it into current to drive the OLED. [0003] The driving circuit (that is, the driving device) of the scanning line ...

AI Technical Summary

Problems solved by technology

[0007] In view of the above shortcomings, the present invention provides a shift register and related devices in order to solve the problem of high power consumption and low reliability caused by excessive transient current of the shift register in the prior art, which utilizes the capacitance bootstrap effect and pull-up Transistor to avoid the simultaneous conduction of the reset transistor and the evaluation transistor, avoiding the loss of power consumption and the impact on the device caused by the large transient current

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