Jnc Corporation

Jnc Petrochemical Corporation

Hiroshi Endou

Hiroyuki Tanaka

Hiroaki Fujita

Fumitaka Kondo

Yuko Katano

Kazuhiro Ogita

Makoto Daigo

A method for manufacturing a liquid crystal display device using a liquid crystal composition containing a polar compound having a polymerizable group. Upon manufacturing the liquid crystal display device including a pair of substrates that have no alignment film and arranged to face each other, and including a liquid crystal composition containing a liquid crystal compound and a polymerizable compound as a liquid crystal layer formed between the substrates formed of an electrode group formed on either one or both of surfaces faced by each of the pair of substrates, in which at least one of the polymerizable compounds is a compound having a polar anchor group, wherein the polymerizable compound is allowed to react under conditions of 10 or more in an accumulated light quantity ratio (313 nm/254 nm) at 254 nanometers and 313 nanometers to form an alignment control layer.

Method for manufacturing liquid crystal display device and liquid crystal display device

To provide a liquid crystal compound satisfying at least one of physical properties such as high stability to light, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a large dielectric constant in a minor axis direction, a suitable elastic constant and excellent compatibility; a liquid crystal composition containing the compound; and a liquid crystal display device including the composition. The compound is represented by formula (1): 

Liquid crystal compound, liquid crystal composition and liquid crystal display device

To provide a liquid crystal compound satisfying at least one of physical properties such as high stability to light, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a large dielectric constant in a minor axis direction, a suitable elastic constant and excellent compatibility; a liquid crystal composition containing the compound; and a liquid crystal display device including the composition. The compound is represented by formula (1). For example, Ris alkyl having 1 to 15 carbons, ring Ato ring Aare 1,4-cyclohexylene or 1,4-phenylene, Zto Zare a single bond, &#x2014;(CH)&#x2014;, &#x2014;COO&#x2014; or &#x2014;CHO&#x2014;, Xis halogen, &#x2014;C&#x2261;N, &#x2014;CFor &#x2014;OCF, Land Lare hydrogen or fluorine, Yand Yare fluorine; a, b, c and d each are 0 or 1, and a sum thereof is 1 or 2.

Liquid crystal compound having difluoromethyleneoxy, liquid crystal composition and liquid crystal display device

Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. Means for Solving the Subject The invention provides a liquid crystal composition that has a nematic phase and includes a specific four-ring compound having a high maximum temperature as a first component, a compound having a specific bonding group and a large dielectric anisotropy as a second component, and a specific two-ring compound having a small viscosity as a third component, and provides a liquid crystal display device containing the composition.

Growing community of inventors

Chiba, Japan

Hiroshi Endou