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Title:
LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
Japanese Patent JP2003295224
Kind Code:
A
Abstract:

To provide a liquid crystal display element having high response speed, reduced driving voltage, satisfactory contrast and excellent heat resistance stability.

The liquid crystal display element is provided with a chiral nematic liquid crystal composition containing at least a nematic liquid crystal mixture and a chiral material, showing a cholesteric phase at room temperature, capable of selectively reflecting light having 420 to 490 nm peak wavelength and having 50 to 90 cP viscosity, dielectric anisotropy (Δ) of 10 to 30, refractive index anisotropy (Δn) of 0.15 to 0.20 and 75 to 100°C isotropic phase transition temperature and a pair of substrates with electrodes which sandwich the liquid crystal composition and at least one of which is transparent.


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Inventors:
MOTOTSUGU FUMIE
HISAMITSU SATOSHI
UEDA NOBORU
Application Number:
JP2002094117A
Publication Date:
October 15, 2003
Filing Date:
March 29, 2002
Export Citation:
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Assignee:
MINOLTA CO LTD
International Classes:
G02B5/20; G02B5/30; G02F1/1347; G02F1/139; (IPC1-7): G02F1/139; G02B5/20; G02B5/30; G02F1/1347
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)



 
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