Array substrate row driving circuit unit and its driving circuit and liquid crystal display panel

Abstract

The invention discloses an array substrate row driving circuit unit, its driving circuit and a liquid crystal display panel, wherein, the array substrate row driving circuit unit includes: a pull-up control module; a pull-up module; at least one pull-down module, and the pull-down module and The pull-up control module and the pull-up module are connected, and are used to simultaneously pull down the pull-up control signal and the row scan signal of the current-stage array substrate row drive circuit unit according to the DC low voltage signal when receiving the row scan signal to a low level; a voltage divider module, the voltage divider module is electrically connected to the pull-up module, and is used to connect the pull-up control signal to the row drive circuit unit of the current-stage array substrate in the pull-down module When the row scanning signal is pulled down to low level at the same time, the falling edge of the pull-down is added. The technical solution of the present invention reduces the difference between the high potential and the low potential to reduce the feed-through voltage of the pixels, thereby improving the uniformity of the liquid crystal display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an array substrate row driving circuit unit, its driving circuit and a liquid crystal display panel. Background technique [0002] GOA technology (Gate Driver on Array) is the array substrate line drive technology. It uses the original array process of the liquid crystal display panel to manufacture the drive circuit of the horizontal scanning line on the substrate around the display area, so that it can replace the external integrated circuit board ( Integrated Circuit, IC) to complete the driving of horizontal scanning lines; GOA technology can reduce the welding (bonding) process of external ICs, and has the opportunity to increase production capacity and reduce product costs, and can make LCD panels more suitable for making narrow borders or no borders. The display product of the border. [0003] At present, some external integrated circuits (Gate IC) used for gate driving ...

AI Technical Summary

Problems solved by technology

[0003] At present, some external integrated circuits (Gate IC) used for gate driving can output the output signal waveform with two falling edges to reduce the feedthrough voltage, but it is not suitable for GOA circuits; the existing GOA circuits can only The output signal has a falling edge, and the gate of the TFT (Thin Film Transistor, Field Effect Transistor) is directly lowered from the constant voltage high potential (VGH) to the constant voltage low potential (VGL) before and after the gate is turned off, and the pixels of the liquid crystal display panel are charged When the feedthrough voltage cannot be reduced, it is not conducive to improving the display uniformity of the LCD panel

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