Chisso Corporation

Jnc Corporation

Jnc Petrochemical Corporation

Chisso Petrochemical Corporation

Kouki Sago

Masayuki Saito

Atsuko Fujita

Takashi Hiraoka

The invention provides a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced between at least two of the characteristics. The liquid crystal composition has a nematic phase, and includes a specific optically active compound as a first component and may optionally include a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large positive dielectric anisotropy as a third component, and the liquid crystal display device contains this composition.

Liquid crystal composition and liquid crystal display device

A dihydrocoumarin ring-containing compound of the invention is represented by the following formula (1): wherein R represents hydrogen or an alkyl; Ato Aeach represents 1,4-cyclohexylene or 1,4-phenylene; Zto Zeach represents a single bond, &#x2014;(CH)&#x2014;, &#x2014;CHO&#x2014;, &#x2014;OCH&#x2014;, &#x2014;CFO&#x2014;, &#x2014;OCF&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, &#x2014;CF&#x2550;CF&#x2014;, &#x2014;C&#x2261;C&#x2014;, &#x2014;(CH)&#x2014;, &#x2014;O(CH)O&#x2014;, &#x2014;(CH)CFO&#x2014;, &#x2014;(CH)OCF&#x2014;, &#x2014;CFO(CH)&#x2014;, &#x2014;OCF(CH)&#x2014;, &#x2014;CH&#x2550;CH&#x2014;CHO&#x2014;, or &#x2014;OCH&#x2014;CH&#x2550;CH&#x2014;; X represents hydrogen, fluorine, chlorine, &#x2014;CN, &#x2014;CF, &#x2014;CHF, &#x2014;CHF, &#x2014;OCF, &#x2014;OCHF, or &#x2014;OCHF; G represents oxygen or sulfur; and n and m each represents 0, 1, or 2.

Dihydrocoumarin derivative, liquid crystal composition containing the same, and liquid crystal display device

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Chiba, Japan

Kouki Sago