C09K19/40

LED with thermo-responsive black-body line dimming

The invention provides a lighting device (10) comprising a light source (100) configured to generate light source light (101) and a light converter element (200), wherein the light converter element (200) comprises a light transmissive matrix (205), wherein the light transmissive matrix (205) comprises: (i) a first luminescent material (210) configured to convert at least part of one or more of (a) the light source light (101) and (b) optionally a second luminescent material light (221) from an optional second luminescent material (220) into a first luminescent material light (211); and (ii) a thermo-responsive liquid crystalline compound (250); wherein the light transmissive matrix (205) is configured in thermal contact with the light source (100), and wherein the lighting device (10) is further configured to provide lighting device light (11) comprising said light source light (101), said first luminescent material light (210) and optionally said second luminescent material light (221), and wherein said light converter element is arranged for changing one or more of the color and color temperature of the lighting device light with the electrical power provided to the light source.

Liquid crystal device

A liquid crystal device, a precursor composition, a method of manufacturing a liquid crystal device, an apparatus of manufacturing a liquid crystal device, and use of the liquid crystal device are provided. A device capable of being driven at a low driving voltage can be provided. The device can be realized so that the device can be driven in a normally transparent mode or a normally black mode. Also, the device has other excellent characteristics such as a contrast ratio. Such a liquid crystal device can be applied to various light modulation devices such as smart windows, window-protecting films, flexible display devices, active retarders for displaying 3D images, or viewing angle-adjusting films.

Dielectric copolymer materials
11999893 · 2024-06-04 · ·

A polymerizable mixture which can be used to form a dielectric material for the preparation of passivation layers in electronic devices 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. The polymerizable mixture can be used in a method for forming copolymers and the copolymers can be used in an electronic device as dielectric material. The copolymers can also be used in a manufacturing method for preparing a packaged microelectronic structure and microelectronic devices comprising the packaged microelectronic structure.

NON-LINEAR SIDE CHAIN LIQUID CRYSTAL POLYORGANOSILOXANES AND METHODS FOR THEIR PREPARATION AND USE IN ELECTRO-OPTIC APPLICATIONS AND DEVICES
20190144752 · 2019-05-16 ·

A non-linear side chain liquid crystal polyorganosiloxane differs from previous side chain liquid crystal polyorganosiloxanes. A method for preparing the non-linear side chain liquid crystal polyorganosiloxane involves hydrosilylation reaction of a SiH rich intermediate with an aliphatically unsaturated mesogenic compound. A liquid crystal composition containing the non-linear side chain liquid crystal polyorganosiloxane is useful in dynamic scattering mode electro-optic device for various applications.

Nonlinear Optical Chromophores Having Tetrahydrocarbazole Donor Groups, Lyotropic Compositions Containing the Same, and Methods of Poling Such Compositions

Nonlinear optical chromophore compositions which display lyotropic nematic liquid crystal phases in polar organic solvents and provide a mechanical anisotropic effect allowing for the formation of a non-centrosymmetric chromophore-polymer matrix without the application of an electric field.

NOVEL LIQUID CRYSTAL COMPOUND AND USE THEREOF
20190016956 · 2019-01-17 · ·

The present application relates to a novel liquid crystal compound and a use thereof. The novel liquid crystal compounds of the present application can exhibit a smectic A phase over a wide temperature range. The novel liquid crystal compounds of the present application can be usefully used in the technical fields to which smectic A liquid crystals can be applied, for example, bistable devices.

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL ELEMENT
20240263076 · 2024-08-08 · ·

A liquid crystal composition contains a polymerizable organic compound and a liquid crystal compound. The liquid crystal compound has a solid phase-nematic phase transition temperature or smectic phase-nematic phase transition temperature of 0? C. or lower. The content of the polymerizable organic compound having a glass transition temperature of 0? C. or lower based on a total amount of the liquid crystal composition is 10 to 60 mass %. A liquid crystal element has a liquid crystal layer, and the liquid crystal layer contains such a liquid crystal composition.

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL ELEMENT
20240263076 · 2024-08-08 · ·

A liquid crystal composition contains a polymerizable organic compound and a liquid crystal compound. The liquid crystal compound has a solid phase-nematic phase transition temperature or smectic phase-nematic phase transition temperature of 0? C. or lower. The content of the polymerizable organic compound having a glass transition temperature of 0? C. or lower based on a total amount of the liquid crystal composition is 10 to 60 mass %. A liquid crystal element has a liquid crystal layer, and the liquid crystal layer contains such a liquid crystal composition.

Semiconducting polymers

The invention relates to novel polymers containing repeating units based on benzodithiophene or derivatives thereof, monomers and methods for their preparation, their use as semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers.

Semiconducting polymers

The invention relates to novel polymers containing repeating units based on benzodithiophene or derivatives thereof, monomers and methods for their preparation, their use as semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers.