一、显示器件的选择大屏幕显示器件过去一般采用钨丝灯或等离子体显示器,但前者功耗大,寿命短;后者驱动电压高,与集成电路难以匹配,目前已处于淘汰阶段,在其余的电致发光,液晶,萤光管,发光二极管等显示器件中,以发光二极管性能最好,它驱动电压低,发光亮度高,使用寿命长,响应速度快,发光颜色种类多,可用直流,交流或脉 First, the choice of display devices Large-screen display devices in the past generally used tungsten or plasma display, but the former large power consumption, short life expectancy; the latter drive voltage is high, with the integrated circuit is difficult to match, is now out of phase, in the remaining Of the electroluminescent, liquid crystal, fluorescent tubes, light-emitting diodes and other display devices, the best performance of the light-emitting diode, which drives a low voltage, high brightness, long life, fast response, light color variety, available DC, Communication or pulse