C09K19/321

High frequency film transmission line, antenna including the same and antenna-integrated image display device

A film transmission line includes a dielectric layer including at least one of a liquid crystal polymer (LCP) structure or a cyclo olefin polymer (COP) structure, and an electrode line on the dielectric layer. A signal loss level (S21) defined of the film transmission line is −1.5 dB or more at a frequency in a range from 20 GHz to 30 GHz. The film transmission line may be applied to a high frequency thin film antenna and an image display device.

CRYSTAL DEFECTS MITIGATING AGENTS FOR HIGH POWER CONVERSION EFFICIENCY AND STABILITY OF PEROVSKYTE PHOTOVOLTAIC DEVICES

This invention relates to an optoelectronic and/or photovoltaic device comprising a compound used as crystal defect mitigating agent or passivating agent, the compound being selected from a compound of formula (I), a compound of formula (II), a mixture thereof, or a compound of formula (II) being selected from anyone of the disclosed formulae (III.1), (III.2), (II.3), (III4) and (III.5).

Liquid crystal medium containing polymerisable compounds

The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.

Liquid-crystalline mixtures
10723950 · 2020-07-28 · ·

The present application relates to mixtures which have liquid-crystalline properties. The application furthermore relates to the use of the mixtures in devices which regulate the transmission of light through an area element.

Liquid crystal medium containing polymerisable compounds

The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.

HIGH FREQUENCY FILM TRANSMISSION LINE, ANTENNA INCLUDING THE SAME AND ANTENNA-INTEGRATED IMAGE DISPLAY DEVICE
20200076035 · 2020-03-05 ·

A film transmission line includes a dielectric layer including at least one of a liquid crystal polymer (LCP) structure or a cyclo olefin polymer (COP) structure, and an electrode line on the dielectric layer. A signal loss level (S21) defined of the film transmission line is 1.5 dB or more at a frequency in a range from 20 GHz to 30 GHz. The film transmission line may be applied to a high frequency thin film antenna and an image display device.

Liquid crystal medium containing polymerisable compounds

The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.

Liquid crystalline media having homeotropic alignment

The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy, comprising a low-molecular-weight component and a polymerizable component. The polymerizable component comprises self-aligning, polymerizable mesogens (polymerizable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the LC medium without alignment layers. The invention discloses novel structures for polymerizable self-alignment additives which have a certain position of the functional groups.

COMPOUND, LIQUID CRYSTAL COMPOSITION, AS WELL AS LIQUID CRYSTAL DISPLAY ELEMENT, SENSOR, LIQUID CRYSTAL LENS, OPTICAL COMMUNICATION EQUIPMENT, AND ANTENNA EACH USING THE SAME

It is an object of the present invention to provide a compound that can provide a liquid crystal composition with a high T.sub.ni, a high ?n, a low V.sub.th, a high ??.sub.r, a low tan ?.sub.iso, and high storage stability at low temperatures, a liquid crystal composition, as well as a liquid crystal display element, a sensor, a liquid crystal lens, optical communication equipment, and an antenna each using this. Specifically disclosed are a compound represented by the general formula (i) having an ethynylene group (C?C) and an isothiocyanate group (NCS) and a liquid crystal composition containing one or two or more of the compounds.

LIQUID-CRYSTALLINE MEDIUM
20190031957 · 2019-01-31 · ·

The invention relates to a liquid-crystalline medium which comprises one or more compounds of the formula BO

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in which the parameters have the meanings indicated in Claim 1, to the use of the liquid-crystalline medium for electro-optical purposes, in particular in liquid-crystal light valves for lighting devices for motor vehicles, and to liquid-crystal light valves which comprise this medium and lighting devices for motor vehicles which contain such liquid-crystal light valves and to compounds of the formula BO.