电阻触摸式LCD三基色电光特性研究

摘要

由于电阻技术的多层复合薄膜屏对光吸收性大,导致各波长透射率不均匀,从而引起色彩失真或图像显示不清晰。用UV-Vis8500型双光束紫外/可见分光光度计测试不同电压下电阻触摸屏的电光特性,分析其对三基色的透射率变化情况。结果表明：随着电压的变化,黑电阻触摸屏对三基色透射率的变化并不一致;黑白电阻触摸屏对三基色透射率变化的差值最大为12%,最小为0;彩色电阻触摸屏对三基色透射率变化的差值最大为4%,最小为0。研究结果能够为提升电阻触摸式液晶显示器件的显示性能提供一定的依据。%The multi-layer film screen based on the resistance technology shows the high absorbance of the visible light,which leads to the non-uniform transmittance of each wavelength,as a result,the color is distorted or the image is not clear.The photoelectric performance of the resistive touch screen under the different voltage is tested by using UV-Vis8500 double beam ultraviolet（UV）/ visible spectrophotometer to analyze the transmit tance variation of the tricolor.The results indicate that the black resistive touch screen shows the inconsistent transmittance variation with the change of voltage.According to the transmittance variation of the tricolor,the highest difference of the white-black resistive touch screen is 12%,the lowest difference is 0,the highest differ ence of the color resistive touch screen is 4%,and the lowest difference is 0.These results can provide some basic information for improving display performance of the resistive touch liquid crystal displays（LCD）.