Patent classifications
C09K2019/3425
DIELECTRIC COPOLYMER MATERIALS
The present invention relates to a polymerizable mixture which can be used to form a dielectric material for the preparation of passivation layers in electronic devices. The polymerizable mixture comprises a first monomer and a second monomer which may react to form a copolymer providing excellent film forming capability, excellent thermal properties and excellent mechanical properties. There is further provided a method for forming said copolymers and an electronic device containing said copolymers as dielectric material. Beyond that, the present invention relates to a manufacturing method for preparing a packaged microelectronic structure and to a microelectronic device comprising said packaged microelectronic structure formed by said manufacturing method.
DIELECTRIC COPOLYMER MATERIALS
The present invention relates to a polymerizable mixture which can be used to form a dielectric material for the preparation of passivation layers in electronic devices. The polymerizable mixture comprises a first monomer and a second monomer which may react to form a copolymer providing excellent film forming capability, excellent thermal properties and excellent mechanical properties. There is further provided a method for forming said copolymers and an electronic device containing said copolymers as dielectric material. Beyond that, the present invention relates to a manufacturing method for preparing a packaged microelectronic structure and to a microelectronic device comprising said packaged microelectronic structure formed by said manufacturing method.
Liquid-crystal medium
The present invention relates to an LC medium comprising and a liquid-crystalline host consisting of an LC component H) comprising one or more mesogenic or liquid-crystalline compounds and an optically active component D) and optionally a polymerizable component P) comprising one or more polymerizable compounds; and to the use of the polymerizable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type.
STIMULUS-RESPONSIVE DYNAMIC LIQUID CRYSTAL ELASTOMERS
Compositions, systems and methods for use in monitoring an environment or a formation. The compositions can include electrically conductive material that can be used as a sensor. The sensor can have a non-writeable, writeable, and stimulated state. A first signal is used to induce the non-writeable material into a writeable state. In the writeable state, the electrically conductive material has the capacity for actuation in response to an orthogonal signal. In response to the orthogonal signal, the electrically conductive material then undergoes a conformation or shape change. The conformational or shape change induces a strain or actuation that can be used to generate a signal. The stimulated state can be reversible, and in the absence of the orthogonal signal the electrically conductive material may resume its original shape or conformation.
Liquid-crystalline medium and liquid-crystal display comprising the same and compounds
The invention relates to a liquid-crystalline medium having a nematic phase comprising one or more compounds of formula X ##STR00001##
wherein the parameters have the meaning given in the text, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type and to the use of the compounds of formula X for improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds, as well as to the compounds of formula X.
LIQUID CRYSTAL COMPOSITION WITH GOOD FREQUENCY DEPENDENCE AND LIQUID CRYSTAL DISPLAY ELEMENT
The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a liquid crystal composition with good frequency dependence and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The liquid crystal composition of the present invention comprises a compound represented by Formula I, a compound represented by Formula II and a compound represented by Formula III, wherein the mass percentage content of the compound represented by Formula I is not less than 30%. The liquid crystal composition provided by the present invention has an appropriate optical anisotropy, an appropriate dielectric anisotropy, especially a relatively low rotational viscosity, a good low-temperature mutual solubility and a good reliability, especially good frequency dependence.
##STR00001##
LIQUID-CRYSTALLINE MEDIUM
A liquid-crystalline medium which comprises at least one compound selected from the group of compounds of the formulae IA to IH,
##STR00001##
in which Z.sup.1 denotes a single bond, —CH.sub.2CH.sub.2—, —CH═CH—, —CH.sub.2O—, —OCH.sub.2—, —CF.sub.2O—, —OCF.sub.2—, —COO—, —OCO—, —C.sub.2F.sub.4—, —(CH.sub.2).sub.4—, —CHFCHF—, —CF.sub.2CH.sub.2—, —CH.sub.2CF.sub.2—, —C≡C—, —CF═CF—, —CH═CHCHO— or —CH.sub.2CF.sub.2O—,
and the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, SA-VA, PS-IPS or IPS effect.
LIQUID-CRYSTALLINE MEDIA
The invention relates to liquid-crystalline media which can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays.
Liquid-crystalline media
Liquid-crystalline media which can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays.
Liquid crystal composition and liquid crystal display element
The present invention provides a liquid crystal composition, containing: one kind or two or more kinds of a first monomer having a first mesogenic skeleton, at least one polymerizable group represented by the general formula (PG1) linked to the first mesogenic skeleton, and at least one polar group linked to the mesogenic skeleton or the polymerizable group; and one kind or two or more kinds of a second monomer having a second mesogenic skeleton and a polymerizable group represented by the general formula (PG2) linked to the second mesogenic skeleton, and having a chemical structure different from that of the first monomer, in an amount of more than 0.4% by mass, which is excellent in vertical alignment, burn-in characteristics (change with time of pretilt angle), and compatibility, and provides a liquid crystal display element using the liquid crystal composition.