Dic Corporation

Hyobok Cha

Yoshinori Iwashita

Shinji Ogawa

Takeshi Kuriyama

Shinichi Hirata

Yasuo Umezu

Masaomi Kimura

Tomoaki Hara

Ryo Kanda

Naomi Hatano

Yasuo Umetsu

It is a method for manufacturing a liquid crystal display device in which an anchoring force causing liquid crystal molecules to be vertically aligned can be exerted sufficiently. A liquid crystal display device () including two substrates AM and CF and a liquid crystal layer () sandwiched therebetween can be manufactured. The liquid crystal display device manufacturing method includes: a first step of subjecting a surface of one of the substrates AM and CM that is to be in contact with the liquid crystal layer () to hydrophilization treatment; and a second step of disposing the two substrates AM and CF so as to face each other such that the two substrates are in contact with a liquid crystal composition containing liquid crystal molecules and an alignment aid having a polar group and having the function of causing the liquid crystal molecules to be aligned spontaneously.

Method for manufacturing liquid crystal display device

A liquid crystal display device with few drop marks left during manufacture is provided without degrading the image-sticking characteristics of the liquid crystal display device or other characteristics fundamental to liquid crystal display devices, such as dielectric anisotropy, viscosity, upper nematic phase temperature limit, and rotational viscosity (&#x3b3;), and a method for manufacturing such a liquid crystal display device is also provided. A liquid crystal display deviceaccording to the present invention includes a first substrate, a second substrate, a liquid crystal composition layerdisposed therebetween, and vertical alignment layersandcontaining a polymer of a monofunctional reactive-group-containing polymerizable compound and a polyfunctional reactive-group-containing polymerizable compound.

Liquid crystal display device and method for manufacturing the same

There is provided a liquid crystal composition having the following properties without reductions in refractive index anisotropy (&#x394;n) and nematic phase-isotropic liquid phase transition temperature (T): sufficiently small viscosity (&#x3b7;), sufficiently small rotational viscosity (&#x3b3;1), a large elastic constant (K), and negative dielectric anisotropy (&#x394;&#x3b5;) with a large absolute value. There is also provided a liquid crystal display device of, for example, a VA type in which such a liquid crystal composition is used and which has a high response speed and excellent display quality with defective display being eliminated or reduced. The liquid crystal display device using the liquid crystal composition of the present invention is useful as an active-matrix liquid crystal display device and can be used in liquid crystal display devices of, for instance, a VA mode and PSVA mode.

Nematic liquid crystal composition and liquid crystal display device using the same

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Kita-adachi-gun, Japan

Hyobok Cha