SDRAM在头盔显示器系统中的应用研究

头盔显示器在很多领域正得到广泛的应用,它在微型显示器上显示高清晰度图像,应用一定的光学系统,在人眼前方形成类似于电脑显示屏的虚像,人们可以通过他来观看高清晰度视频图像。利用FPGA设计头盔显示器与HY57V643220 SDRAM之间的接口,主要研究将SDRAM应用于显示系统中作为图像数据存储器,采用FPGA实现其读写控制功能,并产生驱动LCoS成像所需的完整图像视频信号。

Application and Research about SDRAM in the Head Mounted Display System

Head Mounted Display(HMD) is one of the display systems being applied widely in many areas now.It uses the optical system to make the user feel that there is a computer screen before his eyes,but it is really a virtual image.And people can use the HMD to view the high-definition video.This paper introduces that how to use the FPGA to design the interface between Head Mounted Display and HY57V643220 SDRAM.This paper studies that SDRAM used to the image data storage unit,implements SDRAM controller functions to read and write by FPGA.At the same time it generats video signal which can drive LCoS imaging.