垂直向列型彩色滤光膜硅覆液晶微显示器的三维光学建模?
Three-dimensional optical mo deling of vertical alignment mo de color filter liquid-crystal-on-silicon micro displays
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摘要: 针对垂直向列型彩色滤光膜硅覆液晶微显示器件中的微型彩色像素建立了三维光学模型。首先,对彩色液晶器件的机电特性进行了分析;其次,利用扩展琼斯矩阵计算出器件的光反射率;最后,采用标准RGB协议将所研究的垂直向列型彩色滤光膜硅覆液晶微显示器件中各像素点的光反射特性还原成彩色图像。用上述过程所建立的三维光学模型进行了垂直向列型彩色滤光膜硅覆液晶微显示器件的光学特性研究,并与实验数据进行了比较。比较结果显示,模拟得到的垂直向列型彩色滤光膜硅覆液晶微显示器件的光学特性与实验结果非常符合。Abstract: A three-dimensional (3D) optical model is developed for small color pixels in vertical alignment nematic (VAN) mode color filter liquid-crystal-on-silicon (CF-LCoS) microdisplays. First of all, the electromechanical characteristics of color liquid crystal (LC) cells are analyzed to achieve the orientation structure of the LC director. Then, the optical reflectance of the cell is calculated by using the extended Jones matrix. Finally, the optical reflectance on the pixel array is reduced into the displayed color image by adopting a standard RGB representation. In order to verify the accuracy of this 3D optical model, the simulation result and the observed result are compared. The simulated optical reflectance is in good agreement with the experimental result.
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