摘要
利用CPLD可灵活反复编程的特点,研制了一套通用液晶空间光调制器驱动电路.该系统由CPLD产生液晶水平和垂直扫描控制信号,通过读取SRAM中图像数据的地址,再经过D/A转换和高速运放,对每个液晶像素点进行刷新来完成驱动.系统结构简单,移植性、通用性强,便于与多种液晶空间光调制器接口.
A universal driving circuit for liquid crystal spatial light modulator was developed employing complex programmable logical device （CPLD）. The horizontal and vertical scan control logic, as well as the addresses to access SRAM were generated by CPLD. In each refreshing cycle the image data were transformed by D/A converters, amplified by high speed operating amplifiers and then written into each pixel of TFT - LCD. The system has simple structure, strong transplantation and universalness,is easier to work with a variety of liquid crystal spatial light modulator interface.
出处
《郑州轻工业学院学报（自然科学版）》
CAS
2008年第2期47-49,共3页
Journal of Zhengzhou University of Light Industry:Natural Science
