Repairing device for liquid crystal alignment film and method for repairing liquid crystal alignment film

Abstract

The invention discloses a repairing device for a liquid crystal alignment film, comprising a cleaning component and a drying component. The cleaning component includes a liquid supply rotating part, a traveling rotating part and an alignment film cleaning conveyor belt. The liquid supply rotating member and the traveling rotating member are driven to drive the alignment film cleaning conveyor belt to drive along a cleaning conveying path, so that the alignment film cleaning liquid contained in the alignment film cleaning conveyor belt can wipe off the excess alignment on the substrate. membrane. The drying component includes a traveling rotating part and a residual liquid cleaning conveyor belt. The traveling rotating part is driven to drive the residual liquid cleaning conveyor belt to drive along the cleaning and wiping conveying path, so as to absorb the residual alignment on the substrate through the residual liquid cleaning conveyor belt. The film cleaning solution can not only repair the area with abnormal precision on the substrate, but also simplify the repair of the alignment film.

Description

technical field [0001] The present invention relates to a repairing device, in particular to a repairing device for a liquid crystal alignment film and a method for repairing the liquid crystal alignment film Background technique [0002] In thin film transistors, the polyimide liquid is cured by baking to form a polyimide liquid film, that is, an alignment film, on a glass substrate. Polyimide film formation should be processed by cleaning machine before polyimide film coating, polyimide film coating machine, conveyor and rotary machine, pre-baking oven, etc., and quality inspection should be done in inspection machine. Bad points can be repaired by patching machines. [0003] In actual use, due to many reasons, such as in terms of equipment: poor drying after the cleaning machine process before polyimide film coating, resulting in abnormal diffusion of polyimide liquid; accuracy error of the polyimide film coating machine itself, Poor airflow management and other reasons...

AI Technical Summary

Problems solved by technology

However, this method will lead to prolongation of product production cycle and increase of consumables (such as: polyimide liquid, N-methyl-2-pyrrolidone), and may cause other adverse situations

[0005] At present, the repair machine can only repair some defects, such as mura, and the defect area is generally less than 1*1 mm. For the defects of abnormal polyimide film accuracy, the area can generally reach 10*1 mm or more, but it cannot be processed

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