The present invention relates to a radial-shaped liquid crystal compound, and an optical film and a liquid crystal display device comprising the same. Particularly the present invention provides a compound represented by Chemical Formula 1 comprising a radial-shaped core of tetraphenyl ethylene in which four phenyl groups are bonded to an ethylene group, and makes it possible to provide an optical film which can minimize the change of color according to viewing angle and has an improved contrast ratio and high refractive anisotropy, and a liquid crystal display device comprising the same, by using the compound.
本发明涉及一种径向形液晶化合物,以及由其构成的光学薄膜和液晶显示装置。特别是本发明提供了一种由
化学式 1 表示的化合物,该化合物由四苯基
乙烯的径向形核组成,其中四个苯基与一个
乙烯基团键合,通过使用该化合物,可以提供一种光学薄膜,该光学薄膜可以最大限度地减少颜色随视角的变化,并具有更好的对比度和高折射各向异性,以及一种包含该化合物的液晶显示装置。