Gate drive circuit and display device

Abstract

The invention discloses a grid drive circuit and a display device. The grid drive circuit comprises multi-level grid drive units and a delay module. The multi-level grid drive units provide grid drivesignals through multiple grid lines, and each level grid drive unit generates grid drive signals at the same level according to a corresponding delay starting signal and / or grid drive signals not atthe same level; the delay module generates multiple delay starting signals according to at least one starting signal, and the number of the delay starting signals is larger than that of the starting signals. The grid drive circuit has the advantages that the grid drive units can stably work under the four-phase control mode or the six-phase control mode without increasing the number of the starting signals, the pre-charging time of each grid drive circuit is prolonged, a temperature bearing threshold value of a grid drive module is increased, the problem that the grid drive module is abnormalduring low-temperature output can be effectively solved, and the display quality of the display device is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate drive circuit and a display device. Background technique [0002] At present, Liquid Crystal Display (LCD) has many advantages such as thinness, energy saving, and no radiation, and is widely used in products such as notebook computers, desktop computers, video recorders, smart TVs, mobile terminals, and personal digital processors. superior. Taking liquid crystal display devices applied to mobile phones as an example, under the premise of a certain size of mobile phones, users generally hope that the screen can be as large as possible, so how to realize the narrow frame of the display device has become the direction of extensive research and the goal pursued by the industry. [0003] figure 1 A schematic structural diagram of a conventional display device is shown. [0004] Such as figure 1 As shown, a conventional display device 1000 includes a display panel...

AI Technical Summary

Problems solved by technology

However, the display device 2000 of the prior art also has the following disadvantages: the GIA unit 2120 is prone to instability due to environmental influences, for example, when the GIA unit 2120 works in a low temperature environment, the transistor (such as TFT) in the GIA unit 2120 The threshold voltage will drift and cause abnormal output of the circuit

Therefore, existing GIA circuits cannot be applied to fields with high requirements on circuit reliability and stability, such as the field of vehicle systems

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