LED显示屏灰度的研究

The Study of Grey on The LED-screen

首次提出了实现ＬＥＤ显示屏灰度的两种方法，即电流型灰度显示法和时分型灰度显示法，并对其优缺点进行了比较，且给出了时分型灰度显示法的具体电路和原理，此方法已在实际中得到了应用。

The authors first give two kinds of methods of achieving grey on the LED-screen,that is current-type grey display and time-type grey display, and compares the virtues and defects between the two methods. They also give the circuit principle of time-type grey display using technology of the counter and digit comparator. The method has been applied in practice.