Disconnection repairing method, disconnection repairing device and disconnection repairing structure

Abstract

A broken line repair method, a broken line repair device, and a broken line repair structure. The broken line repair method is used for repairing a signal line (21) with a short-circuit defect in an array substrate, and comprises the steps of: setting a repair path according to the position of a short-circuit defect, and determining, according to the repair path, a position where a filling portion (22) is required to be formed; forming the filling portion (22) at the position where the filling portion (22) is required to be formed; and forming a repair line (23) along the repair path. By detecting the repair path before broken line repair coating and injecting the filling portion (22) according to the repair path, breakage of the repair line (23) caused by overlarge height difference of the position below the repair line (23) is effectively avoided, and the broken line repair success rate is improved.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a method for repairing disconnection in a TFT array substrate, a device for repairing disconnection and a structure for repairing disconnection. Background technique [0002] TFT-LCD (ThinFilmTransistorLiquidCrystalDisplay, thin film transistor liquid crystal display) is one of AM-LCD (ActiveMatrixLCD, active matrix type liquid crystal display). It has the characteristics of low power consumption, light and thin, easy to use, high brightness, high contrast, high response speed, no radiation, etc., and has become one of the mainstream technologies in the flat panel display industry. [0003] Such as Figure 1a and Figure 1b As shown, in the current TFT-LCD production process, the signal lines of the array substrate often have disconnection defects, which need to be repaired. When repairing, lasers are used to remove the coverings at both ends of the disconnection, and then ...

AI Technical Summary

Problems solved by technology

However, since other structures have been formed on the array substrate at this time, the surface of the array substrate is uneven, and the repair line is formed on the uneven surface. When the height difference under the repair line is large, the repair line may be broken. like Figure 1b As shown, resulting in the failure of disconnection repair, which in turn affects the yield rate of the LCD panel, and even causes the LCD panel to be scrapped.

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