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Optical design and roll‐to‐roll fabrication process of microstructure film for wide viewing LCDs |
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| Authors: | Shohei Katsuta Emi Yamamoto Yasushi Asaoka Toru Kanno Hideomi Yui Tsuyoshi Kamada Tsuyoshi Maeda Yusuke Tsuda Katsumi Kondo |
| Affiliation: | Sharp Corporation, , Chiba, Japan |
| Abstract: | We have developed a new microstructure film for wide viewing liquid crystal displays (LCDs). By attaching it to the surface of a conventional LCD, the viewing angle characteristics of LCD has drastically improved without causing a blur of the frontal image and a decrease in the contrast ratio under bright ambient light conditions. This film can be applied to various LC modes including twisted nematic and multidomain vertical alignment by changing its internal micrometer‐size 3D structure. Further, this film can be mass‐produced efficiently by self alignment roll‐to‐roll process. |
| Keywords: | optical film microstructure liquid crystal display wide viewing angle self‐alignment roll‐to‐roll processing |