Industrial Technology Research Institute

Chao-Wu Liaw

Shih-Hsien Liu

Kung-Lung Cheng

Chih-Lung Chin

Kuo-Chang Wang

Jian-Wen Lin

Chien-Wen Lin

Jong-Lieh Yang

Chien-Hsien Cheng

Yi-Lang Tsai

Yi-Liang Tsai

A chiral catalyst represented by formula (II) is provided. In formula (II), Y independently includes hydrogen, fluorine, trifluoromethyl, isopropyl, tert-butyl, CHor OCH, wherein m=1-10 and n=1-10. A heterogeneous chiral catalyst is also provided. The heterogeneous chiral catalyst includes the chiral catalyst represented by formula (II), and a substrate connected to the chiral catalyst. 

Chiral catalyst and heterogeneous chiral catalyst comprising the same

A compound and a liquid-crystal composition employing the same are provided. The compound has a structure represented by Formula (I) wherein Zand Zare independently A, A, Aand Aare independently single bond, Z, Z, Z, and Zare independently single bond, R is independently hydrogen, or Calkyl group; Rand Rare independently single bond, &#x2014;O&#x2014;(CH)&#x2014;, &#x2014;CH&#x2550;CH&#x2014;(CH)&#x2014;, &#x2014;(CH)&#x2014;CH&#x2550;CH&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, or &#x2014;C&#x2261;C&#x2014;; n is an integer from 1 to 6; Band Bare independently and, Ris hydrogen, or methyl group.

Compound and liquid-crystal composition employing the same

An optical device is provided, which includes a first transparent substrate, a second transparent substrate, and a liquid-crystal material disposed between the first transparent substrate and the second transparent substrate. The liquid-crystal material includes a photo responsive material with a chemical structure of: wherein Ais Aand Aare independently X is halogen. R is H, Calkyl group, or Calkoxy group. R' is Calkyl group.

Photo responsive material and optical device

Disclosed is a liquid crystal compound with negative dielectric anisotropy, having a general formula as Formula 1.  In Formula 1, each of L, L, L, and L, being same or different, is hydrogen, halogen, or cyano group. Each of Rand R, being same or different, is hydrogen, halogen, Calkyl group, Calkoxy group, Chaloalkyl group, Calkenyl group, Cether group, or Calkynyl group. Each of Aand A, being same or different, is benzene, cyclohexane, or cyclohexene. Zis &#x2014;CFO&#x2014;, or &#x2014;OCF&#x2014;, and Zis &#x2014;CFO&#x2014;, or &#x2014;OCF&#x2014;.

Liquid crystal compound with negative dielectric anisotropy, liquid crystal display, and optoelectronic device

Disclosed is a liquid-crystal compound with negative dielectric anisotropy, having the chemical formula: wherein A, A, and Aare independently selected from cyclohexyl group, cyclohexenyl group, or phenyl group; Land Lare independently selected from H or F; R is selected from H, F, Cl, Calkyl group, Calkenyl group, Calkoxy group, or Cether group; Y is fluorinated methyl group; m and n are independently selected from an integer of 0-2; and 1&#x2266;m+n&#x2266;3.

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Taipei, Taiwan

Chao-Wu Liaw