【摘要】 针对SXGA(1280×1024)格式高速视频信号的传输特性,结合FPGA技术设计了适用于43cm(17in)自由立体液晶显示器的3D视频信号转换系统。以FPGA芯片作为显示控制器,采用乒乓操作的设计思想协调两组SDRAM完成不同3D模式下对视频信号的实时读写控制,从而实现多制式的立体显示。该设计方案具有不降低显示刷新率、电路结构简单、设计灵活性高的特点,只要通过适当修改代码即可应用于更大尺寸的立体显示器。对系统硬件组成及工作原理进行了分析,并着重介绍了基于乒乓操作的SDRAM控制器的设计与实现。更多还原

【Abstract】 According to the characters of high speed video signal in form of SXGA,combining the technology of FPGA,the video convert system applied in 43 cm(17 in)autostereoscopic display is designed.The FPGA is used as display controller and the design with thought of ping-pong operation is adopted to harmonize two groups of SDRAM to read and write real time video signals under different modes,therefore,the multi-mode autostereoscopic display is realized.This design scheme has the advantages of no reduction in frame frequency,simple circuit structure and good flexibility of design.The code can be directly applied into the autostereoscopic display of lager size through proper modification.The hardware structure and working principle of the system are analyzed.The design and implementation of SDRAM controller based on ping-pong operation is introduced.更多还原