受高清晰度电视发展的影响,未来十年现行电视接收机将广泛应用高清晰度电视已经开发成功的各种技术向高性能方向迈进。其技术动向大致按大屏幕化,图象和伴音高质量化和多功能化发展。大屏幕显示器件(显象管)将普遍采用平面直角屏、小间距荫罩、大口径主透镜电子枪、含浸型阴极等,使显象管在聚焦特性、会聚特性、分辨力、四角偏转收差及寿命方面有 Affected by the development of HDTVs, the existing television receivers will make a wide range of applications that have been successfully developed by HDTVs in the next ten years to move toward high performance. Its technology trends generally by large screen, high quality audio and video and multi-functional development. Large-screen display devices (CRT) will be widely used planar rectangular screen, a small spacing mask, a large diameter main lens electron gun, impregnated cathode, so that the CRT in focus characteristics, convergence characteristics, resolution, And life there