Shift register, drive device and displayer

Abstract

The invention relates to the technical field of display devices, and provides a shift register, a drive device and a displayer. The shift register provided by the invention comprises a valuation unit, a reset control unit and a reset unit. The valuation unit is used for outputting a signal to a signal output end under the control of an input signal and a second clock signal; the reset control unit of which one end is connected with the valuation unit is used for inputting a control signal to the reset unit under the control of a first clock signal and a low-level signal; and the reset unit is used for resetting the signal output end under the control of the control signal and a high-level signal input by the reset control unit. The shift register provided by the invention can quickly charge the grid of a reset transistor grid while valuating the output end, so that the transistor can be turned off in time, a larger transient current generated when the reset transistor and a valuation transistor are switched on at the same time is avoided, the power consumption is reduced and circuit elements are protected. The shift register also can reduce the influence of leakage current from an input tube, reduce the power consumption and enhance the stability based on the output voltage feedback and input tube double-grid technology.

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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