A double layer liquid crystal device comprises a first and a second layer with orthogonal or crossed alignment of the liquid crystal phase of the two layers, in which the first and second layer have first and second alignment aids comprised of a polymerized or polymerizable molecular compound. The layers are aligned by UV photoalignment and vertical self-alignment by the aid of suitable additives.

A method is described for preparing a nanorods assembly. The method comprises providing a mixture comprising at least a liquid crystal and nanorods and depositing said mixture on the surface of at least substrate. The method further comprises aligning said nanorods with their long axis of the nanorods along a preferred direction on said substrate resulting in a nanorods and liquid crystal assembly, said aligning being performed by applying an external alternating current electrical field.

A vertical alignment liquid crystal display includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate, a first and a second passivation layers respectively located at inner sides of the first and the second substrates, a common electrode layer and a pixel electrode layer respectively located on the first and the second passivation layers. The liquid crystal layer includes liquid crystal molecules, auxiliary alignment agent and a polymer network penetrating the entire liquid crystal layer. The auxiliary alignment agent makes the liquid crystal molecules in the liquid crystal layer vertically aligned on the surfaces of the first and the second substrates. The polymer network stabilizes alignment of the liquid crystal molecules and enhances vertical alignment effect of the auxiliary alignment agent to the liquid crystal molecules.

An ionic liquid crystal elastomer composition includes a liquid crystal elastomer; and an ionic liquid.

The invention provides a self-oriented material, a self-oriented liquid crystal material and a manufacturing method of the liquid crystal panel. The self-oriented material provided by the invention can be used for carrying out alignment on liquid crystal molecules, and a polyimide alignment layer is not required to be arranged in the liquid crystal panel when the self-oriented material is added into the liquid crystal material. The self-oriented liquid crystal material disclosed by the invention contains the self-oriented material, the self-oriented material can be used for carrying out alignment on liquid crystal molecules, therefore a polyimide alignment layer is not required to be arranged in the liquid crystal panel. According to the manufacturing method of the liquid crystal panel, the orientation of the liquid crystal molecules is realized by utilizing the self-oriented material in the self-oriented liquid crystal material, and the polyimide alignment layer does not need to be manufactured, so that the process for manufacturing the polyimide alignment layer is saved, and the production cost is reduced.

With the use of a photoalignment film, the present invention provides a liquid crystal display device capable of maintaining a favorable voltage holding ratio and reducing or preventing image sticking, stains, and a decrease in contrast ratio for a long time not only in a room-temperature environment but also in a high-temperature environment; and a method for producing such a liquid crystal display device. The liquid crystal display device of the present invention includes paired substrates; a liquid crystal layer disposed between the substrates; a photoalignment film disposed between at least one of the substrates and the liquid crystal layer; and a polymer layer disposed between the photoalignment film and the liquid crystal layer, wherein the polymer layer has a structure derived from a specific epoxy-based monomer and a structure derived from a specific curing agent.

To provide a liquid crystal display device that has a high off-response speed and a good balance between drive voltage and transmittance, is stable over time, and also has a high voltage holding ratio. A liquid crystal display device in which a liquid crystal layer containing a polymer network (A) and a liquid crystal composition (B) is disposed between two substrates having an electrode on at least one side thereof and having transparent properties on at least one side thereof, and the loss factor (tan ) (loss modulus/storage modulus) of the liquid crystal layer calculated from the storage modulus (Pa) and the loss modulus (Pa) in a sinusoidal vibration measured with a rheometer at 25 C. and at a measurement frequency of 1 Hz ranges from 0.1 to 1.

Disclosed are a thermal crosslink material, a manufacture method of a liquid crystal display panel, and a liquid crystal display panel. A structural formula of the thermal crosslink material is ##STR00001##
wherein A is ##STR00002##
B is ##STR00003##
and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH.sub.2 in the alkyl is substituted with phenyl, cycloalkyl, O, CONH, COO, OCO, CO, or CHCH group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of ##STR00004##
Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.

Disclosed are a thermal crosslink material, a manufacture method of a liquid crystal display panel, and a liquid crystal display panel. A structural formula of the thermal crosslink material is ##STR00001##
wherein A is ##STR00002##
B is ##STR00003##
and R is a linear or chain branched alkyl having 5-20 C atoms, wherein one or more CH.sub.2 in the alkyl is substituted with phenyl, cycloalkyl, O, CONH, COO, OCO, CO, or CHCH group, or one or more H atoms in the first group are substituted with F atom or Cl atom; a specific crosslink material may be one of ##STR00004##
Molecules of the thermal crosslink material crosslink together to form a polymer having a crosslinked network, and groups A and B can be anchored on a substrate surface. The branch R provides an effect of vertical alignment and can form alignment films.

The present disclosure provides a display panel, a preparation method thereof, and a liquid crystal display. The display panel includes a first substrate, a second substrate opposite to the first substrate, a liquid crystal layer between the first substrate and the second substrate, and a polymerizable monomer arranged in the liquid crystal layer; wherein a plurality of polymer walls are arranged in the liquid crystal layer; the polymer wall contacts to the first substrate and the second substrate, and a polymerization direction of the polymerizable monomer in the polymer wall is substantially perpendicular to a thickness direction of the polymer wall. By arranging a plurality of polymer walls to limit the flow of the liquid crystal in a liquid crystal layer, improve an edge roughness of a polymer wall, so as to improve light leakage from an edge of pixels and improve a display effect.