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随着消费类视频设备、工业、电视电话、自动化仪表、办公室自动化设备和计算机系统终端以及国防电子装备的广泛使用,已使显示器件成为电子学中的一个重要分支,在各行各业中都有不同的应用。各种显示器件,如显象管(CAT),扁平CRT和各种平板显示器件,各有不同的特点,并都在进行新技术开发。 CRT是目前显示器件中用得最多的一种,因为它发展早,技术成熟,价格较便宜,除了那些对重量、体积和供电有特殊要求的场合以外,一般仍在用它。由于高清晰度电视(HDTV)和电脑用高精细显示器需要,进一步促进了CRT技术的进步。以彩色显像管为例,到1090年全世界生产的彩管将突破1亿只,其规格从1.5英寸到45英寸,有中聚焦粗管颈和高聚焦细管颈,有低分辨率和高分辨率,有普通球面形和平面直角型。其中平面直角型的高分辨率彩色
With the widespread use of consumer video equipment, industrial, videophone, automated instrumentation, office automation equipment and computer system terminals, and defense electronics, display devices have become an important branch of electronics with a Different applications. Various kinds of display devices, such as CATs, flat CRTs and various flat panel display devices, each have different characteristics and are undergoing development of new technologies. CRTs are currently the most used type of display device, as they develop early, mature technology and are cheaper, except for those that have special requirements for weight, volume and power supply. The advances in CRT technology have further been fueled by the demand for high definition television (HDTV) and computer high definition displays. Taking color picture tube as an example, the number of CPTs to be produced in the world will exceed 100 million by 1090, and its specifications range from 1.5 inches to 45 inches. There are medium-sized thick neck and high-focus narrow neck, with low resolution and high resolution Rate, there is a common spherical and flat right-angle type. One of the high-resolution flat-screen rectangular color