LED背光源用于场序彩色LCD的研究

以红色LED材料AlGaInP，绿色和蓝色LED材料InGaN三芯合一的全彩LED为研究对象，通过大量实验及所测数据，研究用高密高位LED作场序彩色液晶显示器背光源，在不同情况下形成的彩色对人眼的视觉影响；研究在不同场频和不同占空比情况下，LED的发光特性曲线，确定白平衡情况下LED三基色的等量关系；研究LED三基色形成的白光光谱与三基色各光谱之间的关系；比较LED三基色与电视系统三基色在色度图上所覆盖的彩色范围，确定LED管子的选择方法及使用注意事项。

Research of LED Backlighting for Field Sequential Colour LCD

Researching on full colour LED made up of AlGaInP as red LED material and InGaN as green and blue LED materials, in this paper we demonstrate the use of LED as backlight of the field sequential colour LCD through lots of experiments and the gained data. The effect of colours generated under different conditions on human eyes, the LED characteristic curve according to different vertical frequencies, and pulse duration ratio based on field sequential colour are also analysed. We set up the quantity relation between the three primary LED colours in the situation of white balance, compare the white spectrum of RBG with individual spectrum of the three primary colours. We also compare the colour areas on the chromaticity diagrams of LED RGB and TV system RGB,based on which how to choose LED tubes and the warning items are depicted.