Patent classifications
C09K19/3475
Liquid crystalline composition, side chain type polymer liquid crystalline compound, light absorption anisotropic film, laminate, and image display device
A side chain type polymer liquid crystalline compound with which a light absorption anisotropic film having a high alignment degree can be formed, which includes a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. A liquid crystalline composition contains a side chain type polymer liquid crystalline compound and a dichroic substance, the side chain type polymer liquid crystalline compound is a copolymer having repeating units 1 and 2, the repeating unit 1 has a mesogenic group and an electron-withdrawing group having a Hammett's substituent constant σp of greater than 0 at a terminal of the mesogenic group, and the repeating unit 2 has a mesogenic group and a group having a Hammett's substituent constant σp of 0 or less at a terminal of the mesogenic group.
POLYMERISABLE MESOGENIC COMPOUND, LIQUID CRYSTAL MEDIUM AND LIQUID CRYSTAL DISPLAY
The present invention relates to liquid crystal media comprising polymerisable mesogenic compounds with a bent shape, and to electro-optical displays comprising these media as light modulation media. In particular the electro-optical displays according to the present invention are displays, which are operated at a temperature, at which the liquid crystal modulation media are in an optically isotropic phase, preferably in a blue phase.
POLYMERISABLE LIQUID CRYSTAL MATERIAL AND POLYMERISED LIQUID CRYSTAL FILM
The invention relates to a polymerisable LC material comprising one or more di- or multireactive mesogenic compounds and one or more compounds of formula UVI,
##STR00001##
wherein the individual radicals have one of the meaning as given in the claims. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability and UV stability obtainable from a corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electrooptical, decorative or security devices.
Copolymer for liquid crystal alignment agent, liquid crystal alignment agent including the same, and liquid crystal alignment film and liquid crystal display device using the same
A polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent including the same, a liquid crystal alignment film formed from the liquid crystal alignment agent, and a liquid crystal display device including the liquid crystal alignment film are provided.
LIQUID CRYSTALLINE COMPOSITION, SIDE CHAIN TYPE POLYMER LIQUID CRYSTALLINE COMPOUND, LIGHT ABSORPTION ANISOTROPIC FILM, LAMINATE, AND IMAGE DISPLAY DEVICE
A side chain type polymer liquid crystalline compound with which a light absorption anisotropic film having a high alignment degree can be formed, which includes a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. A liquid crystalline composition contains a side chain type polymer liquid crystalline compound and a dichroic substance, the side chain type polymer liquid crystalline compound is a copolymer having repeating units 1 and 2, the repeating unit 1 has a mesogenic group and an electron-withdrawing group having a Hammett's substituent constant p of greater than 0 at a terminal of the mesogenic group, and the repeating unit 2 has a mesogenic group and a group having a Hammett's substituent constant p of 0 or less at a terminal of the mesogenic group.
COPOLYMER FOR LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT AGENT INCLUDING THE SAME, AND LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME
A polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent including the same, a liquid crystal alignment film formed from the liquid crystal alignment agent, and a liquid crystal display device including the liquid crystal alignment film are provided.
CURVED LIQUID CRYSTAL DISPLAY DEVICE
A curved liquid crystal display device, includes: a first bent substrate; a second bent substrate disposed facing the first bent substrate; a liquid crystal layer disposed between the first bent substrate and the second bent substrate, the liquid crystal layer including first liquid crystal molecules disposed adjacent to the first bent substrate and second liquid crystal molecules disposed adjacent to the second bent substrate; a first alignment inducing layer disposed between the first bent substrate and the liquid crystal layer; and a second alignment inducing layer disposed between the second bent substrate and the liquid crystal layer, wherein one of the first alignment inducing layer and the second alignment inducing layer includes a polymerized reactive mesogen, and the remaining alignment inducing layer includes polyimide.
LIQUID CRYSTAL MEDIUM AND ELECTRONIC COMPONENT
A liquid crystal medium comprising a) one or more compounds of formula I and one or more compounds of the formula T and one or more compounds of the formula S1
##STR00001##
and an electronic component comprising said LC medium, operable in the visible (VIS), infrared (IR) or microwave region of the electromagnetic spectrum. Also, the use of said LC medium in the IR, VIS or microwave region and to devices comprising said electronic component.
Polymerisable mesogenic compound, liquid crystal medium and liquid crystal display
The present invention relates to liquid crystal media comprising polymerizable mesogenic compounds with a bent shape, and to electro-optical displays comprising these media as light modulation media. In particular the electro-optical displays according to the present invention are displays, which are operated at a temperature, at which the liquid crystal modulation media are in an optically isotropic phase, preferably in a blue phase.
COMPOUND, LIQUID CRYSTAL COMPOSITION, OPTICAL FILM, POLARIZING PLATE, AND OPTICAL DISPLAY
A compound capable of suppressing the occurrence of alignment defects and lowering the phase transition temperature of a liquid crystal composition without impairing optical characteristics is provided. In particular, a compound represented by formula (A) is provided in which the variable groups are as defined in the specification.
##STR00001##