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1.绪言近年来,随着微电子计算机及文字传真等技术的普及应用,用户领域要求彩色显示器具备与发展相适应的性能。被称为2000字符的一类新型显示器在设计其显示管时,遇到既要高性能又要低价格的难题。 SONY公司从84年起就着手推进了画面平面化、全矩形化、黑屏化、紧凑化及新电子枪PFG的开发工作(Pan Focus Gun—深度聚焦的单枪三束式电子枪)。现已制作出面向用户的2000字符类实现全矩形平面式黑化屏的21型、20V/100°偏转角的彩色显示管。2.CRT的要点
1. INTRODUCTION In recent years, with the popularization and application of technologies such as microelectronics computers and text telephony, users in the field have required that color displays have performance compatible with development. A new type of display, known as 2000 characters, encounters challenges both high performance and low price when designing its display tube. SONY has been promoting screen planarization, full-rectangle, black-screen, and compact development of PFG (Pan Focus Gun-depth focusing single-beam three-beam electron gun) since 1984. Has been produced for the user’s 2000 character class full rectangular planar black screen 21 type, 20V / 100 ° deflection angle of the color display tube. 2.CRT points