提高彩色PDP显示灰度等级的准延伸编码方法  

Quasi-Stretched-Out Code to Increase Gray Scales in Color-Plasma-Display-Panel

作　　者：梁宁[1] 沈思宽[1] 孙鉴[1] 

机构地区：[1]西安交通大学电子物理与器件研究所,西安710049

出　　处：《真空科学与技术》2003年第3期152-155,共4页Vacuum Science and Technology

摘　　要：为了解决延伸编码在消除动态假轮廓时存在显示灰度等级不够和需要子场数目多的不足 ,从动态假轮廓的成因入手 ,吸取延伸编码和常规编码的长处 ,提出了准延伸编码方法 ,该方法能够使用较少的子场数目来提高PDP的显示灰度等级 ,同时有效地消除了动态假轮廓现象。仿真结果表明 ,采用准延伸编码方法 ,运动图像和静止图像的相关系数为 0 8972 。In order to overcome the shortcoming that stretched-out code shows less gray scales and needs more subfields to remove the dynamic false contour of dynamic image in color plasma display panel (PDP), a quasi-stretched-out code combining stretched-out code with conventional code was proposed. It can use less subfields to show enough gray scales and greatly improve display quality of dynamic image in color PDP. The simulation results show that the correlation coefficient between dynamic image and static image is 0.8972.

关 键 词：彩色等离子体显示器 延伸编码 动态假轮廓 误差扩散 

分 类 号：TN873.94[电子电信—信息与通信工程]