Level shifting circuit and its driving method, gate driving circuit and display device

Abstract

The invention provides a level transfer circuit. The level transfer circuit comprises a signal input end, a first high-level input end, a second high-level input end, a low-level input end, a pre-output end, a storage capacitor, a pre-charging module and a boost module; a first end of the storage capacitor is connected with the pre-output end, the control end of the pre-charging module is connected with the input end of the level transfer circuit, a first input end is connected with the input end of the first high-level input end, a second input end is connected with the low-level input end, a first output end is connected with a first end of the storage capacitor, a second output end is connected with the second end of the storage capacitor, the control end of the boost module is connected with the input end of the level transfer circuit, the input end is connected with the second high-level input end, and the output end is connected with the second end of the storage capacitor. The invention further provides a driving method of the level transfer circuit, a grid drive circuit and a display device. The level transfer circuit can improve boost efficiency.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a level transfer circuit, a driving method thereof, a gate driving circuit and a display device. Background technique [0002] Thin film transistor liquid crystal display devices have received wide acclaim for their features such as good display quality, low voltage, low power consumption, and fast response. The display device includes an array substrate provided with an array of thin film transistors. When displaying, scan signals are sequentially provided to each row of gate lines through a shift register, so that the thin film transistors of each row are sequentially turned on. The turn-on voltage required by the thin film transistor is relatively high, but the output voltage of the shift register is relatively low, which cannot meet the requirement for turning on the switch of the thin film transistor. For this reason, a level shifter circuit is usually used to convert the ...

AI Technical Summary

Problems solved by technology

[0003] The level shifting circuit is provided with an energy storage element, and the level shifting circuit of the prior art usually uses an inductor as an energy storage element, and uses a diode in conjunction with it, which leads to a large number of electronic components in the circuit, a large occupied area, and relatively high energy consumption. Large, low level conversion efficiency

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