LIQUID CRYSTAL DISPLAY DEVICE

WIPO Patent Application WO/2016/010026

A1

The present invention provides a liquid crystal display device which prevents decrease in the voltage holding ratio (VHR) of a liquid crystal layer and increase in the ion density (ID), and which solves problems of display failure such as white spot, alignment unevenness and screen burn-in. The present invention provides a liquid crystal display device which uses, as a liquid crystal layer, a liquid crystal composition that contains a liquid crystal compound having a specific structure, while using, as an in-cell retardation layer, an optically anisotropic material that is obtained by polymerizing a polymerizable liquid crystal composition that contains a polymerizable liquid crystal compound having a specific structure at a specific ratio. Since a liquid crystal display device of the present invention is characterized by preventing decrease in the voltage holding ratio (VHR) of a liquid crystal layer and increase in the ion density (ID), and by suppressing the occurrence of display failure such as screen burn-in, this liquid crystal display device is useful as a liquid crystal display device of IPS mode, FFS mode and TN mode for active matrix driving, and is applicable to liquid crystal display devices such as a liquid crystal TV, a monitor, a mobile phone and a smart phone.

KURIYAMA TAKESHI (JP)
KAWAMURA JOUJI (JP)
YAMAMOTO MIKA (JP)
KUWANA YASUHIRO (JP)

PCT/JP2015/070123

January 21, 2016

July 14, 2015

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DAINIPPON INK & CHEMICALS (JP)

G02F1/13363; C09K19/12; C09K19/30; C09K19/42; G02B5/30; G02F1/13

WO2007094450A1

2007-08-23

JP2000221506A	2000-08-11
JP5273494B1	2013-08-28

KONO MICHIHIRO (JP)
Michihiro Kono (JP)

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