| 摘要 |
The invention discloses a method of making a mask structure including two or more masks for a colour cathode ray tube, for example, a mask focusing colour cathode ray tube. A plurality of apertured flat masks, each mask having an effective portion having apertures and non-effective portion surrounding the effective portion, are aligned and stacked with a predetermined gap between them. The gap is then filled with filling material which solidifies, thereby fixing the flat masks together. The fixed masks are simultaneously pressed into a predetermined curved shape. The filling material is then removed from the curved masks. |
