LED视频显示屏实时处理与驱动技术

【作者】 葛集彪；

【导师】 柏连发； 陈钱；

【作者基本信息】 南京理工大学 ， 物理电子学， 2003， 硕士

【摘要】 本文详细叙述了室外LED全彩屏系统的研究与设计。论文从人的颜色视觉特性以及色度学等方面研究了LED屏的全彩色的实现，详细分析了适于调节LED发光特性和人眼视觉特性关系的γ反校正，亮度、对比度和颜色调整，研究提出了适合LED视频显示的数据分配机制、数据格式转换和适合LED大屏静态锁存显示的位平面分离驱动技术。通过对系统的细致分析，有效地抑制了电路噪声和数字脉冲干扰。经过多次实验，实现了刷新频率为60Hz的256级灰度多媒体显示屏视频信号的处理。更多还原

【Abstract】 In this dissertation, the research and design of outdoor full-color LED display system have been discussed in detail from the human vision characteristics and chromatics, the anti-gamma correction the adjustments of luminance, contrast and color based on the relation between the characteristics of LED luminescence and the feature of human vision have been analyzed in detail. In this dissertation the data distribution mechanism, the transform of data format and the driver technology of bit-plane breakaway have also been researched. The circuit noise and digital pulse interference have been restrained effectively through the system analysis. Through many experiments, the processing of the LED display screen whose refresh rate is 60Hz and gray-grade is 256 has been realized.更多还原