本論文提出對於彩色濾光片三原色的非均勻性薄膜非接觸性的光學檢測方法。使用光譜儀，光電倍增管與線性相機掃描圖形，利用最小可視差現象作量化。結果顯示，沿著非均勻膜的厚度，色度與光學密度的變化；膜厚與光學密度呈現凹陷特性，色度卻呈現凸起現象。在藍色膜的量測方面，膜厚變化為正斜率的線性關係，色度與光學密度變化為負斜率的線性關係。
此外，三原色的藍色，紅色與綠色所形成的三角形色域空間結果分析，厚膜有比較多的色域空間，薄膜則是較少的色域空間。色度中橫向座標與紅色變化有關，為CIE x 的函數；綠色與藍色變化與縱向有關，為CIE y的函數。相較於國家電視標準委員會所制定的100%色域空間，厚膜的色域面積為93%，薄膜的色域面積為28%。
誤差分析採用三個標準差於99.7%的信心區間，符合目前平面顯示器的要求。提供的方法可以非常準確的量化彩色濾光片的式樣，甚至比最小的人眼可視差還要低。

An innovative non-contact optical inspection method is developed to quantify a set of red, green and blue layers of a non-uniform thin-film through a CCD-based line-scan, a spectrometer, and a photomultiplier tube to link the digital imaging. Using the features of thickness, chromaticity and optical density profile across the non-uniformity, the results indicate the tendency of thickness and optical density to have concave profiles, whereas the chromaticity distribution is convex. Moreover, a linear relation with a positive slope is demonstrated for thickness, but a negative slope exists between the chromaticity and optical density for blue film.
Moreover, a triangle of color gamut in CIE 1931 for R, G, and B can express the convergence of chromatic tendency. The thick film, the more color gamut; the thin film, the less color gamut in CIE color space, expresses a proportional relation for thickness and transmittance. Moreover, the experiment improves that red color is the function of CIE x, and greenness and blueness are the function of CIE y. Thick film is shown a 93% of color space and thin film is exhibited a 28% of color gamut based on NTSC of 100% color gamut.
All of the measurements with uncertainties of 99.7% confidence interval satisfy the requirements of the flat panel display. The proposed method can accurately quantify the pattern of R, G, and B of color filter in TFT-LCDs; even the perceptibility is lower than the just noticeable difference (JND).

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