A scaling bar to masure of distance between inside key and outer key

摘要

PURPOSE: A scaling bar for measuring distances between external alignment keys and internal alignment keys is provided to frequently detect deviation generated in a process, thereby preventing light loss of a liquid crystal panel. CONSTITUTION: External alignment keys(104) are formed at an outline of a large substrate(100) on which a plurality of cells(102) are defined. Internal alignment keys(106) are formed inside the cells. Each scaling bar(108) is formed between the internal alignment key and the external alignment key by using a transparent conductive material to measure a distance of the scaling bar.