Class / Patent application number | Description | Number of patent applications / Date published |
349186000 | In nematic phase | 27 |
20090066905 | Componds for use in liquid crystal devices - Liquid crystal compounds of Formula (I) for use in liquid crystal devices contains a dioxatetralin unit within the mesogenic liquid crystal core. The dioxatetralin unit may be located at any position within the mesogenic core of the liquid crystal compound, either at the terminus of the liquid crystal core or alternatively substantially in the middle of the liquid crystal core. The compounds of the invention exhibit fast switching and may be used in liquid crystal mixtures for particular use in imaging or display media, such as monitors or televisions. | 03-12-2009 |
20090091703 | LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific tricyclic compound having a large optical anisotropy as the first component and a specific tetracyclic compound having a large dielectric anisotropy as the second component, and may contain a specific bicyclic compound having a particularly small viscosity as the third component. The liquid crystal composition has a nematic phase. The liquid crystal display device contains the liquid crystal composition. | 04-09-2009 |
20090128770 | LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL OPTICAL DEVICE, AND METHOD OF PRODUCING LIQUID CRYSTAL OPTICAL DEVICE - The present invention provides a liquid crystal optical device showing small haze value in transparent state and being excellent in productivity, a process for producing such a device, and a liquid crystal composition for producing such a device. | 05-21-2009 |
20090147211 | LIQUID CRYSTAL OPTICAL DEVICE AND PROCESS FOR ITS PRODUCTION - To provide a liquid crystal optical device showing a low haze value in the transparent state, further an excellent stability in the transparent-scattering characteristics and productivity, and to provide a production process thereof. | 06-11-2009 |
20090161061 | Multilayer laminates comprising chiral nematic liquid crystals - Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain one or more of the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like. | 06-25-2009 |
20090168009 | LIQUID CRYSTAL MATERIAL, LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY - A liquid crystal display device capable of obtaining good display characteristics and good response characteristics is provided. A liquid crystal material being a paraelectric material, the liquid crystal material includes: a liquid crystal molecule exhibiting a nematic liquid crystal phase at room temperature and including one or more cyclic structures; and a bent-shaped molecule including cyclic structures which are large in number compared to the cyclic structures included in the liquid crystal molecule. | 07-02-2009 |
20090213318 | Liquid crystal medium and electrooptical display containing same - The present invention relates to nematic liquid-crystal media of negative dielectric anisotropy which have a peak time (t | 08-27-2009 |
20090279043 | LIGHT-MODULATING LIQUID-CRYSTAL ELEMENT - A light-modulating liquid-crystal element comprising two substrates which each has an electrode layer and at least either of which is transparent and a light-modulating layer supported between these substrates, wherein the light-modulating layer comprises a nematic liquid-crystal material and a transparent solid substance, and the nematic liquid-crystal material comprises a compound represented by the following general formula (I) and/or a compound represented by the following general formula (II) and further contains a compound represented by the following general formula (III), the nematic liquid-crystal material being dispersed as independent fine droplets in the transparent solid substance, the fine droplets having an average particle diameter of 0.1-50 μm. (I) (III) (II) (In the formulae, R | 11-12-2009 |
20100060843 | LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal composition is described, which satisfies at least one characteristic among high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, large optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light, high stability to heat and so on, or is properly balanced regarding at least two of the characteristics. To provide an AM device having short response time, large voltage holding ratio, large contrast ratio, long service life and so forth, the liquid crystal composition has a nematic phase and contains a specific three-ring compound having a large optical anisotropy as a first component, a specific four-ring compound having a large dielectric anisotropy as a second component, and a specific two-ring compound having a particularly small viscosity as a third component. A liquid crystal display device containing the liquid crystal composition is also described. | 03-11-2010 |
20100097563 | Liquid crystal display device and associated liquid crystal media for use in the same - A reverse mode liquid crystal display device, including: a first substantially transparent substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; an insulating layer associated with at least one of the first and second substrates; and a liquid crystal medium contained within a chamber positioned between the first and second substrates which includes a macrocyclic ether and/or a borane; and a nematic, negative dielectric anisotropic liquid crystal mixture. | 04-22-2010 |
20100302498 | Liquid Crystal Composition and Liquid Crystal Display Device - Subject The invention is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The invention is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. | 12-02-2010 |
20110001918 | Liquid Crystal Composition and Liquid Crystal Display Device - The subject is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The subject is to provide an AM device that has a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and so forth. | 01-06-2011 |
20110007260 | Liquid crystal composition and device thereof - The invention provides a liquid crystal (LC) composition, a LC cell thereof, and a LC device thereof. The LC composition comprises (i) a mixture of two or more nematic liquid crystals, and (ii) at least one chiral dopant. The mixture of the liquid crystals can exist in a blue phase within a temperature range of from about 12-60° C. such as 21-28° C. The LC device can be a blue phase mode liquid crystal display (HPLCD) based on such a room-temperature blue phase LC. The HPLCD requires no alignment, and it exhibits merits such as a fast switching time (e.g. sub-millisecond), a low switching voltage and a large field-induced birefringence, among others. | 01-13-2011 |
20110043747 | Liquid Crystal Composition and Liquid Crystal Display Device - Subject The subject is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The other subject is to provide an AM device that has a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and so forth. | 02-24-2011 |
20110109868 | CHIRAL COMPOUND AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME - A chiral compound of formula (I) or (II) is provided, | 05-12-2011 |
20110261312 | LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. A liquid crystal composition having a nematic phase, wherein the first component contains a specific five ring compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a small viscosity, and the third component contains a specific four ring compound having a high maximum temperature. The liquid crystal display device contains the liquid crystal composition. | 10-27-2011 |
20120262662 | BLUE PHASE LIQUID CRYSTAL NANOCOMPOSITES AND DEVICES CONTAINING THE SAME - A composition including nanocomposites formed from blue phase liquid crystals that are stabilized with dopants and nanorods such as metallic nanorods and/or carbon nanotubes. Devices including the compositions are disclosed that provide increases temperature ranges as well as reduction, in threshold voltage and turn on voltage, in addition to the inherent blue phase liquid crystal properties of sub-millisecond response time in the field induced Kerr effect. | 10-18-2012 |
20130201435 | LIQUID CRYSTAL CELL - A liquid crystal cell, a precursor of the liquid crystal layer, a method of manufacturing a liquid crystal cell, and use of the liquid crystal cell are provided. The liquid crystal cell may be manufactured simply in a consecutive manner using a roll-to-roll process. Also, the liquid crystal cell may be realized as a flexible device, and have an excellent contrast ratio. Such a liquid crystal cell can be applied in various applications including smart windows, window-protecting films, flexible display devices, active retarders for displaying 3D images, or viewing angle-adjusting films. | 08-08-2013 |
20130208227 | SWITCH ELEMENT COMPRISING A LIQUID-CRYSTALLINE MEDIUM - 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 a compound of the formula (I), in particular for use in the switch elements according to the invention. | 08-15-2013 |
20130258268 | LIQUID-CRYSTALLINE MEDIUM AND ELECTRO-OPTICAL DISPLAY - The invention relates to a liquid-crystalline medium having a nematic phase and negative dielectric anisotropy which comprises
| 10-03-2013 |
20140049743 | LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE - To provide a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy and specific resistance, high stability to ultraviolet light and heat; a liquid crystal composition having a suitable balance regarding at least two thereof; and an AM device having short response time, large voltage holding ratio and contrast ratio, long life and so forth. The liquid crystal composition has nematic phase, and contains as a first component a specific compound having large dielectric anisotropy and as a second component a specific compound having small viscosity, and may contain as a third component a specific compound having high maximum temperature or large dielectric anisotropy, and as a fourth component a specific compound having high maximum temperature or small viscosity, and a liquid crystal display device includes the composition. | 02-20-2014 |
20140111760 | LIQUID CRYSTAL DISPLAY PANEL AND MANUFACTURING METHOD THEREOF - Embodiments of the present invention disclose a liquid crystal display panel and a manufacturing method thereof. The liquid crystal display panel comprises two substrates disposed opposite to each other and a liquid crystal layer filled between the two substrates, and the liquid crystal layer is formed from a mixture, comprising discotic liquid crystal, nematic liquid crystal and photoinitiator, by UV-light irradiation; the mixture comprises 5%˜50% by mass of discotic liquid crystal, 40˜90% by mass of nematic liquid crystal, and 0.05%˜10% by mass of photoinitiator. The liquid crystal panel can have reduced response time. | 04-24-2014 |
20140111761 | LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING THE SAME - The invention relates to a liquid crystal display utilizing a vertically aligned state of liquid crystal molecules when no voltage is applied and to a method of manufacturing the same. | 04-24-2014 |
20140232977 | BIMESOGENIC COMPOUNDS - The invention relates to bimesogenic compounds of formula I | 08-21-2014 |
20140362335 | POLYMER-DOPED VERTICALLY-ALIGNED NEMATIC LIQUID CRYSTALS - A system having a vertically-aligned negative delta E nematic liquid crystal host material and a small amount of liquid crystal polymer is provided. The liquid crystal polymer improves the switching speed of a vertically aligned nematic system without sacrificing contrast or viewing angle. | 12-11-2014 |
20160033698 | BRAGG LIQUID CRYSTAL POLARIZATION GRATINGS - An optical element includes a plurality of stacked birefringent sublayers, such as liquid crystal sublayers, configured to alter a direction of propagation of light passing therethrough according to the Bragg condition. The stacked birefringent sublayers respectively include local optical axes that vary along respective interfaces between adjacent ones of the stacked birefringent sublayers to define respective grating periods. The respective thicknesses of the stacked birefringent sublayers may be less than a wavelength of the light. Related apparatus and methods of operation are also discussed. | 02-04-2016 |
20160091775 | GRATING-BASED LIGHT MODULATION EMPLOYING A LIQUID CRYSTAL - A light modulator includes a light guide to guide light by total internal reflection, a diffraction grating at a surface of the light guide, and a liquid crystal in contact with the diffraction grating. The liquid crystal has a first state with a first refractive index that substantially matches a refractive index of a material of the diffraction grating to defeat the diffractive coupling. The liquid crystal has a second state with a second refractive index that differs from the first refractive index to facilitate the diffractive coupling. | 03-31-2016 |