| Summary: | 碩士 === 國立交通大學 === 顯示科技研究所 === 100 === Colorimetric characterization of information devices is essential among the image communication. The upcoming electronic papers developed by the various ingenuities also need reliable color models. Therefore, general procedures: physical model, numerical model with regression, and look-up table with interpolation for characterizing any potential e-Paper technologies were introduced in this study. One of the commercial e-Paper products, cholesteric liquid crystal display (ChLCD) would be used as a test example to verify corresponding colorimetric characterization based on the three proposed methodologies. In addition, the feasibility and the fidelity of different manners would also be examined and discussed. In accordance with the experiment, physical model is impractical for ChLCD due to its inherent complex operating mechanism. Because of the nonlinearity between ChLCD color space and CIEXYZ space, the accuracy from a feasible numerical model with regression (20 polynomial terms and 729 training data) is reached to ΔE00_avg. =1.4, which is still larger than indistinguishable criterion (ΔE00<1). Compared with physical and numerical modeling, if the non-uniform packing is in response to the features of ChLCD itself, the colorimetric characterization utilizing 729 look-up tables with tetrahedral interpolation can offer the prediction with high fidelity (ΔE00_avg. =0.79).
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