MACHINING METHOD FOR TRANSPARENT ELECTRODE OF PLASMA DISPLAY PANEL, PLASMA DISPLAY PANEL, LASER MACHINING METHOD, AND LASER MACHINING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a laser machining method capable of obtaining an unstriped image when a plasma display panel is turned on. SOLUTION: A machining method for a transparent electrode of a plasma display panel comprises (a) a process to linearly irradiate a laser beam on first and second regions 72 of a material to be processed (an electrode thin film for a transparent electrode) in the direction of the Y-axis at a prescribed interval in the direction of the X-axis using first and second laser optical systems and a X-Y moving mechanism, (b) a process to obtain a mean pitch (1) by measuring intervals between a plurality of laser irradiation lines formed in the first region, (c) a process to obtain a regional pitch (12) between the laser irradiation line closest to the second region in the first region and the laser irradiation line closest to the first region in the second region, (d) and a process to determine the interval (xx) of laser irradiation lines in the first region by the first laser optical system using the pitch difference 12=12-1 between the regional pitch and the mean pitch.