Dielectric analysis of (polymer)/(Liquid Crystal) composite film based on aggregation structure.

裕嗣, 菊池; 朗, 宮本; 聡, 小林; 泰大, 森村; 千里, 梶山

doi:10.1246/nikkashi.1990.434

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“…Liquid crystal /polymer composite (LCPC) films or polymer dispersed liquid crystal (PDLC) films have considerable potentials for a wide range of applications, such as information displays, switchable windows [1][2][3][4][5][6] or thermally addressed display devices. [7,8] LCPC films usually consist of a thin film of polymer binder in which LCs are dispersed, and are sandwiched between two indiumtin-oxide coated glass substrates.…”

Section: Introductionmentioning

confidence: 99%

Wide Viewing Angle Properties in Nematic Liquid Crystal/UV Curable Liquid Crystal Composite Films with Some Aligned-Modes.

Yamaguchi¹,

Waki²,

Sato³

1997

J. Photopol. Sci. Technol.

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Liquid crystal l polymer composite (LCPC) films can be electrically switched from a light scattering off-state to a transparent on-state dUe to the refractive index mismatch or match between the polymer matrix and LC. We have proposed novel LCPC films prepared using a UV curable liquid crystal (UVCLC) as a polymer matrix material, which has an anisotropic optical property in contrast with an isotropic polymer matrix of conventional LCPC films. We investigate the optical properties of nematic LC 1 UVCLC composite films with homogeneous-, twisted-and hybrid-modes. All of these films show a reverse mode property which have a transparent off-state and light scattering on-state, and wide viewing angle properties in both states. The refractive index match or mismatch is discussed through the relation between the incident light angle and optical axes of the LC and UVCLC.

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