基于扭曲向列相(TN:Twisted Nematic)液晶盒的电光效应与光电板的光电效应原理,运用单片机的相关知识,设计了扭曲向列相液晶盒光电自适应系统.通过光电板对光强变化的反应来自动调节TN盒(常黑结构)上的驱动电压,有目的调节TN盒的透射光强,达到对外界环境自适应的效果,使系统产生一个恒定光强的环境.
Basing on the twisted nematic liquid crystal cell's electrooptical effect and photovoltaic panels' photoelectric effect,we have designed an adaptive photoelectric system with the knowledge of single-chip microcomputer.Through the detection of the external light density,this system can coordinate the slaving voltage of the liquid crystal cell to produce an environment with a constant light density as the external light changes.