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一、引言从爱迪生发现热电子发射效应,到人们知道用电子束扫描荧光屏显示波形为止,阴极射线管已有近百年历史。显象管是阴极射线管的一种。黑白显象管发展较早,技术成熟。彩色显象管诞生于1938年,有50年历史,近30年发展甚为迅速。随着彩色电视的普及,黑白显象管的产量呈现下降趋势,甚至是大幅度下降。一些发达国家,例如美国则完全放弃了生产黑白显象管,将其向发展中国家转移。而彩色显象管产量呈现持续上升趋势,处于生产高峰,进入发展新阶段。
I. INTRODUCTION The discovery of hot electron emission effects from Edison has led to a nearly 100-year history of cathode-ray tubes as far as people know that waveforms are displayed electronically on a fluorescent screen. CRT is a kind of cathode ray tube. Black and white picture tube developed earlier, the technology is mature. Color CRT was born in 1938, 50 years of history, the rapid development of nearly 30 years. With the popularization of color TV, the output of black and white picture tubes shows a downward trend, or even a substantial drop. Some developed countries, such as the United States, have completely renounced the production of black and white picture tubes and transferred them to developing countries. The color display tube production continued to show upward trend in production peak, entered a new stage of development.