Method for repairing LCD device

Abstract

The invention relates to a repairing method of a liquid crystal display device. The liquid crystal display device is provided with an array base plate. The array base plate comprises a plurality of grid lines, a plurality of data lines vertically crossed with the grid lines, a plurality of pixel electrodes and a plurality of thin film transistors. The grid electrodes, the source electrodes and the drain electrodes of all the thin film transistors are respectively and electrically connected with the corresponding grid lines, the data lines and the pixel electrodes; when one electrical connection defect exists on the data lines, the repairing method comprises the following steps: cutting off one side of the grid line crossed with the data line having electrical connection defects; cutting off the grid electrode of the thin film transistor correspondingly connected with the other side of the grid line into two parts, so that the source electrode and the drain electrode of the thin film transistor are divided into two parts which are not electrically connected; then respectively and electrically connecting the parts and the other parts of the source electrode and the drain electrode of the thin film transistor; and electrically connecting the data line and the grid line cut off. The repairing method can reduce the manufacturing cost of the liquid crystal display device.

Description

technical field [0001] The invention relates to a repair method of a liquid crystal display device, in particular to a repair method of an array substrate on the liquid crystal display device. Background technique [0002] The traditional cathode ray tube (Cathode Ray Tube, CRT) display relies on the cathode ray tube to emit electrons and hit the phosphor powder on the screen to display images, while the principle of liquid crystal display (LCD) is completely different from that of CRT displays. Usually, liquid crystal The display device has an upper substrate and a lower substrate, which have a certain distance from each other and are facing each other. A plurality of electrodes formed on the two substrates are facing each other. The liquid crystal is sandwiched between the upper substrate and the lower substrate, and the voltage passes through the electrodes on the substrate. Applied to the liquid crystal, and then change the arrangement of the liquid crystal molecules acc...

AI Technical Summary

Problems solved by technology

However, this repair method generally needs to add a layer of graphics with a repair function on the array substrate—the so-called repair line. , etching, and stripping processes to form a graphic layer for repairing leads, the production time and cost will increase significantly

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