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彩色显示有多种型式,归纳起来可分为发光型与受光型两大类。在发光型显示中,以电子束显示的发光效率为最高(20～50lm/W)。它具有亮度及对比度均佳,适合室外全天侯使用,能给出全色图像,以及分辨率高、响应速度快等优点。目前在显示器件中仍处于领先地位。进入80年代,大屏幕显示发展极快。主要应用于军事指挥、工业和交通方面的管理及控制,大型体育场和展览馆,以及城市广场的宣传和广告等方面。大屏幕显示可分投影式和直观式两大类。投影显示要求纵深的投影空间,屏幕愈大,所需空间也愈大,同时亮度亦随投影面积增大而降低。目前主要发展直观式大屏幕显示。
There are many types of color display, summed up can be divided into light-emitting and light-emitting two categories. In the light-emitting display, the electron beam shows the highest luminous efficiency (20 ~ 50lm / W). It has brightness and contrast are good, suitable for outdoor use all-day, giving full-color images, and high resolution, fast response and so on. Currently in the display device is still in a leading position. Into the 80’s, the big screen shows rapid development. Mainly used in military command, management and control of industrial and transportation, large stadiums and exhibition halls, as well as the promotion and advertising of the city square. Large-screen display can be divided into two types of visual and intuitive. Projection display requires deep projection space, the screen is larger, the greater the space required, while the brightness also decreases with the projection area increases. Currently the main development of intuitive large-screen display.