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引言近期发展起来的各种平板显示器件,如液晶显示(LCD)、发光二极管(LED)、荧光显示管(VFD)、等离子显示板(PDP)和场致发光(EL)等在性能与价格方面远远落后于显像管(CPT)。而且显像管的功率容量和转换特性也大大高于上述显示器件。因此,作为显示器件的主流,显像管仍广泛应用于各种领域。由于其体积庞大,限制了它在某些特殊场合的使用。早在50年代初期,人们就开始了对扁平显像管的研究。以缩短整管长度为目的,提出了多种新的工作原理,简化制管工艺和外
INTRODUCTION The recent development of various flat panel display devices such as liquid crystal display (LCD), light emitting diode (LED), fluorescent display tube (VFD), plasma display panel (PDP) and electroluminescence (EL) Far behind CRT (CPT). And picture tube power capacity and conversion characteristics are also significantly higher than the above display device. Therefore, as the mainstream of display devices, CRTs are still widely used in various fields. Because of its size, it limits its use in some special occasions. As early as the early 1950s, people began the study of flat picture tubes. In order to shorten the length of the entire pipe for the purpose of putting forward a variety of new working principles to simplify pipe technology and outside