OPTICAL FILM WITH IMPROVING INTERFERENCE FRINGE
One embodiment of the present invention provides an optical film having an interference fringe index of 4 to 20. An interference fringe index is obtained by taking a bright and dark image of an optical film using light with a peak wavelength of 590 nm, adaptive thresholding the bright and dark image...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | One embodiment of the present invention provides an optical film having an interference fringe index of 4 to 20. An interference fringe index is obtained by taking a bright and dark image of an optical film using light with a peak wavelength of 590 nm, adaptive thresholding the bright and dark image based on x, and equation 1 regarding the area of a darkness region in the variable binarized brightness image is satisfied, wherein equation 1: f (x) =[ f (3) ] / 2.
본 발명은, 4 내지 20의 간섭 무늬 지수를 갖는 광학 필름 및 광학 필름의 간섭 무늬 평가 방법을 제공한다. |
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