| 摘要 |
PROBLEM TO BE SOLVED: To provide a marking method wherein problems in a conventional marking method have been solved. SOLUTION: This marking method is used to print a product attribute number on a liquid crystal display element 6. In such a marking method, the product attribute number is printed with water of a high pressure containing an abrasive, which is jetted from a water jet nozzle 3, on a section which does not affect the displaying function of the liquid crystal display element 6. |
