末端が水素であるナフタレン誘導体、この誘導体を含有する液晶組成物およびこの液晶組成物を含有する液晶表示素子

Japanese Patent JP4961700

B2

A liquid crystal (LC) compound having generally required physical properties, low viscosity, proper optical anisotropy, proper dielectric anisotropy and good compatibility with other LC compounds is described. A LC composition including the LC compound and thereby having a wide temperature range for nematic phase, low viscosity, proper optical anisotropy and low threshold voltage is also described. A LCD device including the composition and thereby having a short response time, low power consumption, a higher contrast and a high voltage holding ratio is further described. The compound is expressed by formula (1a): wherein the ring A 1 and the ring A 2 are independently 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl or naphthalene-2,6-diyl, in which any hydrogen can be replaced by halogen; Z 1 , Z 2 and Z 3 are independently a single bond, -(CH 2 ) 2 -, -(CH 2 ) 4 -, -CH=CH-, -C‰¡C-, -CF 2 O-, -OCF 2 -, -COO- or -OCO-; X a , X b , X e , X d , X e and X f are independently hydrogen or fluorine; Y is -OCH 2 F, -OCHF 2 , -OCF 3 , -SCH 2 F, -SCHF 2 , -SCF 3 , -CH 2 F, -CHF 2 , -CF 3 , fluorine or chlorine; L a and L b are independently hydrogen or fluorine; and "l" and "m" are independently equal to 0 or 1.

JP5653902	Fluorine Derivatives for Organic Electroluminescent Devices
WO/2011/138935	ORGANIC PHOTOELECTRIC CONVERSION ELEMENT

Tomoyuki Kondo
Akiichi Matsui
Kimura Keiji

JP2005260157A

June 27, 2012

September 08, 2005

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JNC Corporation
jnc Petrochemical Co., Ltd.

C07C25/22; C07C43/225; C07C69/017; C07C69/76; C09K19/12; C09K19/14; C09K19/20; C09K19/30; C09K19/32; C09K19/34; C09K19/42; G02F1/137; G02F1/139; G02F1/141

JP2003261584A
JP48040726B1
JP10221890A
JP2001114722A
JP2001139511A

Tetrahedron Letters,1998年,Vol.39,p.7101-7104
Synlett,2002年,No.6,p.871-874
Journal of Medicinal Chemistry,2005年,Vol.48,p.556-568

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