说明：  SED1520Driver是用SED1520作为内藏控制芯片的点阵式的可编程液晶显示器,本源码给出它的一些常用的驱动,如:显示汉字,显示图形,显示标点符号等.
(SED1520 as SED1520Driver is embedded control chips programmable dot-matrix liquid crystal display, the source is given some of its popular drivers, such as: show the Chinese characters display graphics, display and other punctuation marks.)