Method and device for repairing display substrate

Abstract

The invention provides a method and device for repairing a display substrate, and belongs to the technical field of display. The display substrate includes a signal line and a planar electrode disposed in different layers and insulated from each other. The signal line has a broken point. The method for repairing the display substrate includes the steps of: connecting the signal lines on both sidesof the broken point to the planar electrode; laser cutting the planar electrode from a side of the planar electrode away from the signal lines around a connection point of the planar electrode and the signal lines in order to separate the part of the planar electrode connected to the signal lines from the other regions of the planar electrode. The method can repair the line open-circuit defect ofthe display substrate, improves the product yield of the display substrates, does not need a special repair line, can save the space of the display substrate, and is not limited in repairable lines.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method and device for repairing a display substrate. Background technique [0002] During the manufacturing process of the display substrate, circuit breakage (Open) may occur, resulting in defects such as bright lines or dark lines, thereby reducing the product yield of the display substrate. [0003] The common repair method of the existing display substrate is to reserve a repair line for repair on the display substrate. If the display substrate detects that the line is open, use the reserved repair line to repair the display substrate, but the repair line will occupy the display substrate. The space affects the aperture ratio of the display substrate, and the number of Opens that can be repaired will be limited. One repair line can only repair one line with poor Opening. Contents of the invention [0004] The technical problem to be solved by the present invention is to...

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Problems solved by technology

[0002] During the manufacturing process of the display substrate, there will be open circuits (Open), resulting in defects such as bright lines or dark lines, which will lead to a decrease in the yield of the display substrate.

[0003] The common repair method of the existing display substrate is to reserve a repair line for repair on the display substrate. If the display substrate detects that the line is open, use the reserved repair line to repair the display substrate, but the repair line will occupy the display substrate. The space affects the opening ratio of the display substrate, and the number of Opens that can be repaired will be limited. One repair line can only repair one bad Open line.

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