Liquid crystal drop filling system and control method

A liquid crystal drop filling system, comprising:

• a liquid crystal drop filling device configured to perform a liquid crystal drop filling process to obtain a liquid crystal panel;
• an image acquisition device configured to acquire an image of the liquid crystal panel;
• an image processor configured to process the acquired image and to determine a defect of the liquid crystal panel based on the processed image;
• and
• a communication circuit configured to communicate information related to the defect determined by the image processor to the liquid crystal drop filling device, so that the liquid crystal drop filling device adjusts parameters of the liquid crystal drop filling process according to the information;
• wherein the image processor is further configured to convert the acquired image of the liquid crystal panel to a gray-level image;
• wherein the image processor is further configured to identify a gray-level value of each pixel in the gray-level image and to identify a region in the gray-level image where the gray-level value falls within a predetermined range as a normal region, and identify a region in the gray-level image where the gray-level value goes beyond the predetermined range as a defective region;
• wherein the image processor is further configured to determine the type of the defect according to the gray-level value of the defective region;
• wherein the image processor is further configured to
• identify a region in the defective region where a gray-level value falls within a first gray-scale value range as an over-filled defective region;
• identify a region in a defective region where a gray-level value falls within a second gray-scale value range as a peripheral yellowing defective region;
• and/or
• identify a region in a defective region where a gray-level value falls within a third gray-scale value range as a light leaked defective region.