Patent ID: 8334965
Filing Date: 2012-12-18
Classification: G02F

Abstract:
1. A method for examining a substrate for liquid crystal display panel comprising a columnar spacer and a structure for specifying a position, the method comprising: a process of specifying a position of the structure for specifying a position; a process of determining a position of a reference point and a spacer top based on predetermined distance data from the structure for specifying a position; and a process of measuring a difference in height between determined positions of the reference point and the spacer top; wherein the structure for specifying a position is a specific structure in the substrate for liquid crystal display panel, in which the liquid crystal display panel includes a first projection structure and a second projection structure and/or a depression structure; the specific structure is arranged at a portion of or near the first projection structure; and the specific structure includes at least one of a planar shape different from a planar shape of the second projection structure and/or the depression structure and a planar area of ⅔ times or less or 1.5 times or more than a planar area of the second projection structure and/or the depression structure.