用FPGA实现旋转式显示屏技术的研究  

Rotary Display Screen's Technology Research with the FPGA

作　　者：王小妮[1,2] 齐臣杰[2] 魏桂英[1] 

机构地区：[1]北京科技大学经济管理学院,北京100083 [2]北京信息科技大学理学院,北京100192

出　　处：《半导体技术》2011年第12期968-971,共4页Semiconductor Technology

基　　金：北京市教委科技发展计划面上项目(KM201110772018);人才强教深化计划项目(PHR201108267)

摘　　要：对旋转式发光二极管显示屏的时空分割原理和总体设计方案做了简单的阐述,重点介绍了用FPGA设计的旋转式显示屏的电子线路及显示部分中各部分的功能和工作原理,以及将视频信号转换为发光二极管显示的过程。针对旋转式显示屏高速旋转、传输数据量大、速度高的特点,设计了基于FPGA的显示控制器,用FPGA控制发光二极管各管的显示灰度,实现了旋转式发光二极管显示屏的256级灰度显示。实验结果证明该方法制造的旋转式显示屏能正确显示传送的信息内容,该系统可以节省大量的发光二极管,造价低,是一种廉价、高效的新技术产品。A rotary light emitting diode display screen＇s space-time segmentation theory and the overall design method were introduced. The function and work theory of the rotary display screen＇s electron circuitry and display part with FPGA were highlighted. The procedure of how the LED displays the picture that video frequency displays was introduced. Based on the high speed, high amount of data and the high performance feature of the rotary LED display screen, a FPGA based display controller was designed. The grayscale display of each individual LED was controlled by the FPGA, making rotary LED display screen could display 256 grayscales. Test result shows that rotary LED display screen by this l method could transfer information correctly. The new system can save a lot of light-emitting diodes, and it is a cheap and efficient new technology.

关 键 词：旋转式显示屏 发光二极管 时空分割原理 现场可编程门阵列 视频信号 

分 类 号：TN364.2[电子电信—物理电子学] TP391.41[自动化与计算机技术—计算机应用技术]