Array substrate repairing method, array substrate, display panel and display device

Abstract

The invention provides an array substrate repairing method, an array substrate, a display panel and a display device. The array substrate comprises an underlayer substrate, a storage capacitor, switching diodes, grid lines and data lines, and multiple pixel areas are defined by the grid lines and the data lines; capacitance plates are arranged between the common line of the storage capacitor and apixel electrode in each pixel area; the capacitance plates comprise a first capacitance plate and at least one second capacitance plate, the first capacitance plate and the second capacitance plate are separately arranged, the first capacitance plate is close to the switching diode corresponding to the pixel area, and the first capacitance plate is electrically connected with the drain of the switching diode and meanwhile electrically connected with the pixel electrode; and the second capacitance plate is electrically connected with the pixel electrode. According to the method provided by theinvention, the broken area of the data line on the array substrate can be effectively repaired, the normal display function of the pixel unit can be ensured, meanwhile the dark spot operation of thepixel unit is not affected, and the display effects of the display panel and the display device are ensured.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method for repairing an array substrate, an array substrate, a display panel and a display device. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD) has the advantages of low power consumption, small size and low radiation. It places liquid crystal between two conductive materials and uses the thin film transistor layer to control the two The electric field between the electrodes is driven to cause the electric field effect of twisting the liquid crystal molecules to control the projection or shading of the light source, so as to achieve the purpose of displaying images. [0003] In the TFT-LCD substrate preparation process, there is an overlapping area between the data line and the gate line, and the data line will produce a "climbing" area in the overlapping area, resulting in poor surface flatness of the data line, and when the subs...

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Problems solved by technology

[0004] However, in the above-mentioned repair process, the trace of the repair line will be in contact with the drain, so that the data line and the drain of the switching diode are short-circuited, which directly causes the gate line to be unable to control the signal input and output of the pixel unit, and the pixel unit control process fail

And in the pixel dark point operation process, in order to ensure the normal pixel dark point, will use image 3 The cutting process shown cuts off the part of the drain that is in contact with the repair line. However, this cannot avoid the short connection between the drain and the common line, which will cause poor connection of the dark point operation and affect the display effect of the pixel unit.

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