摘要:
A method of replicating a master pattern comprising coating the master pattern with a layer of a radiation curable composition comprising as the radiation curable component, a compound having the structure
wherein R represents a cycloaliphatic or an aromatic group;
R 2 represents hydrogen or methyl; n is 2 to 10; p is 3 or 4; and exposing the layer to actinic radiation thereby forming a negative image of the master pattern in the layer.
摘要:
The present invention relates to a nematic liquid crystal composition which is useful as a material used for liquid crystal display devices and which has a positive dielectric anisotropy (Δε), and the present invention further relates to a liquid crystal display device using such a nematic liquid crystal composition. The liquid crystal composition of the present invention has a liquid crystal phase in a broad temperature range, a low viscosity, good resistance to resolution at low temperature, and high specific resistance and a voltage holding ratio and is stable to heat and light; hence, use of the liquid crystal composition contributes to production of a liquid crystal display device of, for example, an IPS type or a TN type in a good yield, the liquid crystal display device having good display quality and being less likely to suffer from defective display such as screen burn-in and stains of liquid crystal droplets. A liquid crystal display device using the liquid crystal composition of the present invention enables both quick response and a reduction in defective display and is therefore practical; in particular, the liquid crystal composition is useful to active-matrix-driving liquid crystal display devices and can be applied to VA-mode, PSVA-mode, and TN-mode liquid crystal display devices.
摘要:
The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy comprising self-alignment additives (SAMs) with an at least one bifunctional or polyfunctional anchor group, which effects the 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 liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC media may be supplemented by a polymerizable or polymerized component, which serves for stabilisation of the alignment, for adjustment of the tilt angle and/or as passivation layer.
摘要:
The present invention relates to a nematic liquid crystal composition which is useful as a material used for liquid crystal display devices and which has a positive dielectric anisotropy (”µ), and the present invention further relates to a liquid crystal display device using such a nematic liquid crystal composition. The liquid crystal composition of the present invention has a liquid crystal phase in a broad temperature range, a low viscosity, good resistance to resolution at low temperature, and high specific resistance and a voltage holding ratio and is stable to heat and light; hence, use of the liquid crystal composition contributes to production of a liquid crystal display device of, for example, an IPS type or a TN type in a good yield, the liquid crystal display device having good display quality and being less likely to suffer from defective display such as screen burn-in and stains of liquid crystal droplets. A liquid crystal display device using the liquid crystal composition of the present invention enables both quick response and a reduction in defective display and is therefore practical; in particular, the liquid crystal composition is useful to active-matrix-driving liquid crystal display devices and can be applied to VA-mode, PSVA-mode, and TN-mode liquid crystal display devices.
摘要:
Provided is a polar compound having high chemical stability, high ability to align liquid crystal molecules, and high solubility in a liquid crystal composition, and which has a large voltage holding ratio when used in a liquid crystal display element. A compound represented by formula (1). For example, R 2 represents a C1-15 alkyl, MES represents a mesogenic group having at least one ring, Sp 1 represents a single bond or a C1-10 alkylene, M 1 and M 2 represent hydrogen, R 2 represents a group represented by formulas (1a) through (1c) , Sp 2 and Sp 3 are single bonds or C1-10 alkylenes, S 1 represents >CH-, S 2 represents >C
摘要:
Provided is a polar compound having high chemical stability, high ability to align liquid crystal molecules, and high solubility in a liquid crystal composition, and which has a large voltage holding ratio when used in a liquid crystal display element. A compound represented by formula (1). For example, R 2 represents a C1-15 alkyl, MES represents a mesogenic group having at least one ring, Sp 1 represents a single bond or a C1-10 alkylene, M 1 and M 2 represent hydrogen, R 2 represents a group represented by formulas (1a) through (1c) , Sp 2 and Sp 3 are single bonds or C1-10 alkylenes, S 1 represents >CH-, S 2 represents >C 1 represents -OH.
摘要:
The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises 5-95 % of a compound of the formula (I), in particular for use in the switch elements according to the invention.
摘要:
The present invention relates to a nematic liquid crystal composition which is useful as a material used for liquid crystal display devices and which has a positive dielectric anisotropy (Δε), and the present invention further relates to a liquid crystal display device using such a nematic liquid crystal composition. The liquid crystal composition of the present invention has a liquid crystal phase in a broad temperature range, a low viscosity, good resistance to resolution at low temperature, and high specific resistance and a voltage holding ratio and is stable to heat and light; hence, use of the liquid crystal composition contributes to production of a liquid crystal display device of, for example, an IPS type or a TN type in a good yield, the liquid crystal display device having good display quality and being less likely to suffer from defective display such as screen burn-in and stains of liquid crystal droplets. A liquid crystal display device using the liquid crystal composition of the present invention enables both quick response and a reduction in defective display and is therefore practical; in particular, the liquid crystal composition is useful to active-matrix-driving liquid crystal display devices and can be applied to VA-mode, PSVA-mode, and TN-mode liquid crystal display devices.
摘要:
The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises 5-95 % of a compound of the formula (I), in particular for use in the switch elements according to the invention.