基于平滑滤波的虚拟显示模型及控制方法  

Virtual display modeling and control method based on smoothing filter

作　　者：王彬宇[1,2] 王瑞光[1] 邓意成[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049

出　　处：《液晶与显示》2015年第4期673-680,共8页Chinese Journal of Liquid Crystals and Displays

基　　金：吉林省重大科技转化项目(No.09ZDZH006)

摘　　要：针对新型虚拟LED显示屏提出一种基于平滑滤波器的虚拟显示模型和控制方法,该方法与传统方法相比能在降低数据带宽的条件下提高虚拟显示的灰度等级。分析了户外发光二极管显示屏(LED)的显示原理,指出提高LED显示器分辨率和灰度是提升其显示效果最直接的方法。介绍了传统虚拟显示的实现及控制原理和存在的问题,然后针对目前的虚拟LED显示屏提出一种虚拟显示的建模及控制方法,再用模拟和实验验证该方法的可行性及效果,最后与传统的虚拟显示建模及控制方法做对比。实验结果表明,使用本文提出的建模和控制方法呈现的图像清晰,图像细节不流失,准确地还原了图像原来真实的情况。本文提出的虚拟显示建模和控制方法能够准确还原图像信息,可以用于新型的虚拟LED显示屏。A new mathematical modeling method based on smoothing filter is proposed for the latest virtual LED display screen and a new control method is proposed for the application of the new modeling method.Compared with traditional virtual display system,system with new mathematical modeling and control method can decrease the need of the data bandwidth and increase the gray scale of the virtual display system.Firstly,the article analyzed the imaging principle of LED screen and explored the nature of virtual display and gave the evaluation criteria of the LED screen which include resolution and gray scale.Secondly,the article introduced the implementation of the traditional virtual display and its problems.Thirdly,the article proposed a new mathematical modeling method for the latest virtual LED display screen and predicted the feasibility of new method.Then,the article used a LCD screen to simulate the feasibility of new method and used the virtual LED screen to verify theresult of new control and modeling method.At last,the article compared traditional and new method.The experimental results indicated that by using the new control and modeling method,the image displayed on virtual LED screen is vivid and the detail of image is fully displayed.Therefore,the new method of control and modeling can be used in virtual LED screen.

关 键 词：虚拟显示 LED显示屏 分时复用 亚像素共享 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]