Method for restoring wire break of liquid crystal display device

Abstract

The invention relates to a method for repairing the broken lines of a liquid crystal display device. The liquid crystal display device comprises a plurality of grid lines in parallel with each other, a plurality of data lines which are intersected with the grid lines, a thin film transistor which is connected with a corresponding grid line and a data line through a first contact hole and a second contact hole respectively, and a protective conductive layer which covers the first contact hole and is in contact connection with the grid lines. When the grid lines are broken, the method can be used for repairing the broken lines and comprises the following steps: detecting the position of the broken grid lines through a detection device; and carrying out sedimentation for repairing the conductive layer in the area of the broken grid lines under the protection of protective gas through a sedimentation device. The method adopts the equipment such as a laser CVD for carrying out sedimentation and repairing the conductive layer and is electrically connected with the broken lines through the contact holes after the conductive layer is repaired through sedimentation, thereby improving the rate of fineness of the liquid crystal display device product.

Description

technical field [0001] The invention relates to a method for repairing disconnection of a liquid crystal display device. Background technique [0002] Traditional CRT monitors rely on cathode ray tubes to emit electrons and strike phosphors on the screen to display images, but liquid crystal displays work on a completely different principle. Generally, a liquid crystal display device (LCD) has a (also called a color filter substrate) and a lower substrate (also called an array substrate), which are spaced apart from each other and facing each other, and a plurality of electrodes formed on the two substrates are facing each other, and the liquid crystal Sandwiched between the upper substrate and the lower substrate, voltage is applied to the liquid crystal through the electrodes on the substrate, and then the alignment of the liquid crystal molecules is changed according to the applied voltage to display images. Because the liquid crystal display device does not emit light as...

AI Technical Summary

Problems solved by technology

However, the method of laser striking from top to bottom has the disadvantages of making the conductive medium of the conductive layer easily react with the ambient gas at high temperature, and it is easy to be vaporized or splashed due to uneven heating at high temperature, resulting in the loss of the conductive medium and affecting the contact characteristics.

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