LIQUID CRYSTAL COMPOSITION - DAINIPPON INK & CHEMICALS

Title:

LIQUID CRYSTAL COMPOSITION

Document Type and Number:

Japanese Patent JP2002146357

Kind Code:

A

Abstract:

To provide a liquid crystal composition having the slight temperature dependency of its threshold voltage without deteriorating its liquid crystal properties including threshold voltage and response, and to provide a high-contrast liquid crystal display element using the liquid crystal composition.

This liquid crystal composition comprises a compound of general formula I, a compound of general formula II-b and a compound of general formula II-c, and has a nematic phase-isotropic liquid phase transition temperature of 75-130°C, smectic phase- or solid phase-nematic phase transition temperature of -60 to -20°C and birefringence (Δn) of 0.07-0.30 (in the general formulas I, II and III, R1 is a 1-16C alkyl, 2-16C alkenyl or the like; X1 is H or F; and R8, R9, R10 and R11 are each a 1-8C alkyl or 2-8C alkenyl).

Inventors:

SUDO TAKESHI
KURIYAMA TAKESHI
KAWAKAMI SHOTARO
ONISHI HIROYUKI
TAKATSU HARUYOSHI

Application Number:

JP2001263665A

Publication Date:

May 22, 2002

Filing Date:

August 31, 2001

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DAINIPPON INK & CHEMICALS

International Classes:

G02F1/13; C09K19/20; C09K19/30; C09K19/46; (IPC1-7): C09K19/46; C09K19/20; C09K19/30; G02F1/13

Domestic Patent References:

JP2001294862A	2001-10-23
JP2001081467A	2001-03-27
JPH09157654A	1997-06-17

Foreign References:

WO1997030966A1	1997-08-28
WO1996032365A1	1996-10-17

Attorney, Agent or Firm:

Takahashi victory

Previous Patent: LIQUID CRYSTAL COMPOSITION

Next Patent: METAL COMPLEX FLAME RETARDANT