MANUFACTURING METHOD OF DISPLAY DEVICE AND LASER PROCESSING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a black membrane forming method of a display device that does not require a substantial facility and can be resource saving and energy saving, and can form a black membrane pattern precisely with ease, and its device and an aperture mask used for it. SOLUTION: In the forming method, aperture masks 17, 17A, 17B made of glass on which a pattern having openings 18a-18e corresponding to the pattern of the black membrane 3 is formed, is used on the optical system 9 on which the laser beam L is irradiated.