期刊刊名：南開學報 　 卷期：15卷1期

篇名出版日期：2018年6月1日

作者：Shih-Yu Hung, Ming-Ho Shen,洪仕育,沈明河

語言：English

關鍵字：Asymmetric microlens, Light control film, Lift-off,非對稱微透鏡,光控膜,舉離法

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摘要：
A new manufacturing method for an asymmetric microlens array for a light control film has been developed to improve the efficiency of a dazzling liquid crystal display that can collect a lateral light source and improve the viewing angle. During the conventional heat reflow without the substrate, an asymmetric microlens may be produced by the tilting substrate under gravity. However, the bottom shape of the lens will become elliptical and the higher diameter ratio of the photoresist column will cause the lens to slide. Prior to the thermal reflow process, a stripping method was used to form the round bottom. After the wafer is tilted, the base can not only limit the bottom shape of the liquid photoresist to a circular shape, but also prevent the sliding of the liquid photoresist during the heat reflow process. Compared with the base, the concave base is relatively reliable, effectively avoid the lens sliding. The proposed manufacturing method facilitates mass production to achieve a high yield asymmetric microlens suitable for use in light control films which can improve the brightness and contrast of the reflective liquid crystal display.

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