Shift register unit, shift register circuit, array substrate and display device

Abstract

A shift register unit, a shift register circuit, an array substrate and a display device can avoid a phenomenon that light lines and dark lines appear alternately in a horizontal direction in a gray scale state when the display device is lighted up normally, wherein the phenomenon is generated because a clock signal causes an abnormal output of a gate scanning voltage of the shift register unit when a frame start signal comes. The shift register unit comprises a capacitor (C1), a first transistor (T1), a second transistor (T2), a third transistor (T3), a fourth transistor (T4), a fifth transistor (T5), a sixth transistor (T6), and a voltage pulling-down control module. The shift register unit, the shift register circuit, the array substrate and the display device can be used for the manufacture of a display.

Description

technical field [0001] The invention relates to the field of liquid crystal display manufacture, in particular to a shift register unit, a shift register circuit, an array substrate and a display device. Background technique [0002] In recent years, the development of displays has shown a trend of high integration and low cost. One of the very important technologies is the mass production of GOA (Gate Driver on Array, array substrate row drive). Use GOA technology to integrate the gate switch circuit on the array substrate of the display panel to form a scan drive for the display panel, so that the gate drive integrated circuit part can be saved, which can not only reduce the product cost in terms of material cost and manufacturing process , and the display panel can achieve a beautiful design with symmetrical sides and narrow borders. At the same time, since the Bonding process in the Gate direction can be omitted, it is also more beneficial to increase production capaci...

AI Technical Summary

Problems solved by technology

The inventors have found that in the shift register of this structure, due to the large parasitic capacitance of the gate line driving TFT, when the STV (start of frame) signal is input, the gate voltage of the gate line driving TFT is compared with the signal of the gate line driving TFT source. The clock is pulled high, which causes the output signal of the shift register unit to be capacitively coupled to produce an abnormal output, which in turn causes the H-line phenomenon of the display panel to occur, that is, when the display panel is normally lit, alternate bright and dark lines appear horizontally in the grayscale state The phenomenon

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