C09K2019/521

Liquid crystal display device and manufacture method thereof

Provided are a liquid crystal display device and a manufacture method thereof. The liquid crystal display device is a blue phase liquid crystal display device. The alignment layer is not required. The liquid crystal composition forming the liquid crystal layer comprises liquid crystal material, quantum dots material mixed in the liquid crystal material, polymeric monomer and chiral material; the polymeric monomer is polymerized to form a polymer network under a blue phase temperature range as forming the liquid crystal layer, which can stabilize the blue phase liquid crystal, and thus to expand the blue phase temperature range. The grain size of the quantum dots material in the liquid crystal composition is in the nano scale, which can expand the blue phase liquid crystal temperature range. Namely, the blue phase temperature range of the liquid crystal material has already been expanded before the polymeric monomer is polymerized.

DISPLAY SYSTEM
20190064595 · 2019-02-28 ·

Aspects of the invention include a multi-functional optical unit, panel lighting systems and display systems having the multi-functional optical unit. The multi-functional optical unit formed in a single-layered or multi-layered structure includes primary fillers and assisted fillers. The primary fillers include wavelength conversion materials adapted to function as at least one of mixing light, converting light, and trapping/guiding primary light. The assisted fillers are hybrids of fillers of sizes, shapes, and porosities having elongated shapes, fumed structures, or aspherical shapes for improving light trapping and propagating in an x-y plane direction of the multi-functional optical unit and light scattering/mixing. The multi-functional optical unit has a plurality of microstructures with a cross-section of a triangle, trapezium, trapezoid, square, curved, or rectangular shape to improve angular color uniformity, formed on one of its top and bottom surfaces.

METHOD FOR PREPARING COATING LAYER HAVING HIGHLY ALIGNED NANOMATERIAL IN LYOTROPIC LIQUID CRYSTAL MATRIX
20190056545 · 2019-02-21 ·

The present invention relates to a method for preparing coating layer having highly aligned nanomaterial in a lyotropic liquid crystal matrix. More specifically, it relates to a method for preparing coating layer having highly aligned nanomaterial by applying shearing force to a composite of nano material and lyotropic liquid crystal material after mixing the nano material and the lyotropic liquid crystal material. The present invention has an advantage in that orientation of nanomaterials, which have a high industrial utilization but are difficult to control orientation, can be controlled very easily and simply by applying a shearing force using a medium, such as a lyotropic liquid crystal matrix which is extractable from nature, thereby cheap and biocompatible. Further, the present invention can induce a highly aligned orientation of nanomaterials over a wide area, and can be applied to produce a plasmonic color filter film using a polarization dependent surface plasmonic resonance phenomenon of the oriented nanomaterials.

Cholesteric liquid crystal cell with increased reflectivity

The invention relates to a reflecting cell including at least two substrates covered by an electrode and facing each other, the substrates delimiting between them a volume which separates them and which is filled with a cholesteric liquid crystal-type material, both electrodes being intended to be connected to a voltage source. This cell includes at least one half-wave plate arranged between both substrates and dividing the volume into two compartments, each enclosing a part of a same cholesteric liquid crystal.

Electro-rheological fluid and haptic device

The present invention relates to an electro-rheological fluid comprising particles of at least one inorganic or organic material suspended in a polar liquid crystalline medium, the use of such electro-rheological fluid in an haptic device, an haptic device itself, a method of the production of such haptic device and the use of such haptic device in electro-optical devices.

LIQUID CRYSTAL POLYESTER COMPOSITION AND MOLDED ARTICLE
20180362848 · 2018-12-20 ·

A liquid crystal polyester composition containing a liquid crystal polyester, a fibrous filler having a number average fiber diameter of at least 15 m but not more than 25 m, and a plate-like filler is provided. The total amount of the fibrous filler and the plate-like filler is at least 65 parts by mass but not more than 105 parts by mass per 100 parts by mass of the liquid crystal polyester.

Patterned liquid crystal alignment using ink-jet printed nanoparticles and use thereof to produce patterned, electro-optically addressable devices; ink-jet printable compositions

Ink-jet printable compositions including nanoparticles capped with a protective layer of hydrocarbon chains and a single solvent exhibiting a single evaporation rate and having a specifically defined viscosity and surface tension that result in uniform and printable alignment layers for liquid crystal materials. Patterned liquid crystal-containing cells are also disclosed including one or more layers including the same or different nanoparticles capped with a protective layer of hydrocarbon chains printed on a surface of a substrate or even another nanoparticle-containing layer. Methods for producing the cells are also disclosed, including the step of printing a pattern on one or more portions of a cell surface utilizing a composition comprising the capped nanoparticles. Devices including the cells are also disclosed.

CAMERA MODULE-USE LIQUID CRYSTALLINE POLYESTER RESIN COMPOSITION AND CAMERA MODULE-USE MOLDED PRODUCT FORMED THEREOF
20180334534 · 2018-11-22 ·

A liquid crystalline polyester resin composition for use in camera modules includes 20 to 45 parts by weight of spherical silica particles (B) having an average particle diameter of 15 m or more and less than 30 m in 100 parts by weight of a liquid crystalline polyester resin (A). A polyamide resin composition with which a camera module exhibiting excellent low dust forming property, toughness and impact strength can be obtained.

Liquid crystal polymer composition

To provide a liquid crystal polymer composition whose fluidity during molding is improved without degrading the mechanical properties thereof. A liquid crystal polymer composition which contains 100 parts by weight of a liquid crystal polymer, 1 to 200 parts by weight of an inorganic filler and/or an organic filler, and 0.01 to 2 parts by weight of a melamine compound as a flow modifier.

Precursor particle for forming liquid crystal alignment layer, liquid crystal display panel, and method of manufacturing the liquid crystal display panel

A liquid crystal device that includes two substrates that face each other, a liquid crystal cell interposed between the two substrates, and a liquid crystal alignment layer interposed between the liquid crystal cell and at least one of the two substrates, the liquid crystal alignment layer includes a plurality of spherical or spherical-like core particles having a diameter of 10 nm to 1 m.