在氦氖激光中使用彩色液晶电视需要澄清红、绿、蓝三分量对透射率的贡献。实验表明，红、绿分量在相当大的范围内有近似线性，绿分量甚至比红分量的贡献更大，而蓝分量的贡献较小。利用三色滤光片透射光谱的重叠性质和液晶的非线性，可以减少激光下彩色液晶电视的分辨率的下降。除此以外，还发现红、绿、蓝三分量之间存在着很强的相互作用，只有综合考虑亮度和三分量之间的相互关系，才能最大限度地发挥彩色液晶电视在相干光照射下显示灰度图像的能力 The use of color LCD TVs in He-Ne lasers requires clarification of the contribution of the three components of red, green and blue to the transmittance. Experiments show that the red and green components have an approximate linearity over a relatively large range. The green component even contributes more than the red component, while the blue component contributes less. Using the overlapping nature of the transmission spectrum of the tri-color filter and the non-linearity of the liquid crystal, the resolution of the color liquid crystal television under the laser can be reduced. In addition, it is found that there is a strong interaction between the three components of red, green and blue. Only when the relationship between brightness and three components are comprehensively considered can the color liquid crystal television be displayed in the coherent light to the maximum extent Grayscale image capabilities