OPTICAL FILM HAVING AN ATYPICAL PATTERN, METHOD FOR MANUFACTURING THE SAME, AND BACKLIGHT ASSEMBLY TO WHICH THE OPTICAL FILM IS APPLIED
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app pub date -
Mar 20, 2014
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Sep 26, 2011
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Abstract
The present invention relates to an optical film having an atypical pattern, a method for manufacturing same and a backlight assembly including the optical film. The optical film of the present invention includes: a base layer transmitting light incident from outside; and a pattern layer formed on one or both sides of the base layer, and having a surface structured of a continuously formed polygonal optical pattern having an irregular size and arrangement. Thus, hot-spots and bright lines occurring at a light source and a light entering unit may be prevented. Not only can the pattern density of the optical film be maximized to improve brightness, but strong bright points may be effectively scattered and distributed through the atypical pattern to provide the effect of improved light-shielding ability, thereby contributing to a reduction in the number of expensive optical films used in a backlight assembly and an improvement in brightness.
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