| 1. | The control system included the following units : video decode unit , data format conversion unit , fpga controller , cache unit and d / a monitor . the above self - design control unit plus row and column power supply units make the whole fed driving system , thus drove the 25 inch sample and realized color video display . the 25 inch vga sample thus fabricated could display video images , and obtained its brightness 400cd / m2 , contrast ratio 1000 : 1 , 256 circuit gray scale
本文介绍了fed驱动系统的工作原理,重点论述了基于fpga的vga级彩色fed新型驱动控制系统的研制,这种新型fed驱动控制系统主要包括视频解码电路、数据格式转换电路、 fpga控制电路、数据缓存电路和d / a监控电路,配合后级列灰度调制单元和行扫描单元,组成完整的fed驱动系统,可以驱动25英寸vga级fed显示屏,实现彩色视频显示,样机亮度达400cd / m2 、对比度为1000 : 1 ,灰度等级为256级。 |
