摘要
LCD显示离不开背光源的辅助,而现在绝大多数显示器采用恒定亮度背光源,存在显示效果动态模糊以及低对比度等问题,并且耗能也较为严重。文章着重叙述一种基于视频内容逐帧分析,然后选择最佳背光亮度的一种由FPGA控制的动态背光源设计方案。实验采用的是TI公司的TLC5947,具有多个输出通道,可以适用于大规模显示屏。
LCD can not do without the auxiliary of backlight,while now most monitors attaching backlight with a constant brightness,have some problems,such as display motion blur,low contrast,more power dissipation and so on.In this paper,I describe a way of frame by frame analysis of video,then selecting the best of backlight controlled by the FPGA design of the dynamic backlight.In the experiment we use the TI＇s TLC5947,with multiple output channels,which can be applied to large-scale display
出处
《现代显示》
2011年第6期45-49,共5页
Advanced Display
