Patent ID: 7497762
Filing Date: 2009-03-03
Classification: B24B,G02F

Abstract:
1. A method for correcting a grinding amount of a liquid crystal display panel, comprising: forming an alignment mark on an edge of an unit liquid crystal display panel; aligning a camera with the unit liquid crystal display panel using the alignment mark on the edge of the unit liquid crystal display panel, to minimize an error between an actual grinding surface of the unit liquid crystal display panel and a grinding picture; grinding the edge of the unit liquid crystal display panel; generating grinding pictures of the unit liquid crystal display panel using the camera and storing the grinding pictures on a first memory unit; calculating an error value of a grinding amount by comparing the grinding pictures with a reference picture stored on a second memory unit; changing a set value of a grinding unit according to the error value; and regrinding the unit liquid crystal display panel after changing the set value.