扩大电视图像的显示尺寸,一直是电视技术工作者的奋斗目标之一。传统的阴极射线管即彩色显像管的屏幕显示尺寸高、度真空玻璃管的防爆问题、X射线辐射问题、重量问题及其他一些技术问题越来越难以解决。另外,CRT显然不适于制作平板式显示器。从20世纪20年代起,一些电子技术发达的国家已开始了新型图像显示技术和显示器的研究,现已取得了突破性进展。 Expanding the display size of television images has always been one of the goals of TV technology workers. The traditional cathode ray tubes, that is, the color picture tube display screen is high in size, degree of vacuum explosion-proof glass tube problems, X-ray radiation problems, weight problems and other technical problems more and more difficult to solve. In addition, CRT is obviously not suitable for making flat panel displays. Since the 1920s, some countries with developed electronic technologies have started research on new image display technologies and displays, and breakthroughs have been made.