Class / Patent application number | Description | Number of patent applications / Date published |
349020000 | Thermal excitation | 21 |
20090073332 | Liquid Crystal Component Module and Method of Controlling Dielectric Constant - A liquid crystal component module comprises a liquid crystal dielectric layer, first and second electrically conductive layers disposed to oppose each other with the liquid crystal dielectric layer interposed therebetween, a voltage applying device which applies a DC voltage to the liquid crystal dielectric layer so as to control the dielectric constant of the liquid crystal dielectric layer, a temperature regulating element for changing the temperature of the liquid crystal dielectric layer, and a temperature control device which changes the temperature of the liquid crystal dielectric layer by means of the temperature regulating element so as to cause transition of the liquid crystal dielectric layer between solid phase and liquid phase. | 03-19-2009 |
20100245694 | Systems and Methods of All-Optical Fourier Phase Contrast Imaging Using Dye Doped Liquid Crystals - An assembly for converting a microscope into a phase contrast microscope includes a first optical Fourier element that Fourier transforms light from a coherent light source, a cell in the Fourier plane arranged to receive light from the first optical Fourier element, a second optical Fourier element arranged to receive light from the cell and inversely Fourier transform the received light to provide an image, an image sensor that detects the image and generates an electronic representation of the image, and an adaptor capable of coupling the first and second Fourier elements, the cell, and the image sensor to the microscope such that the first Fourier element Fourier transforms light collected by the microscope objective. The cell includes liquid crystal molecules having a phase transition temperature, wherein at temperatures exceeding the phase transition temperature, light transmitting through the liquid crystal molecules obtains a different phase than light transmitting through the liquid crystal molecules at temperatures below the phase transition temperature. | 09-30-2010 |
20100259698 | Thermally Switched Optical Filter Incorporating a Guest-Host Architecture - Thermochromic filters are constructed using absorptive, reflective, or fluorescent dyes, molecules, polymers, particles, rods, or other orientation-dependent colorants that have their orientation, order, or director influenced by carrier materials, which are themselves influenced by temperature. These order-influencing carrier materials include thermotropic liquid crystals, which provide orientation to dyes and polymers in a Guest-Host system in the liquid-crystalline state at lower temperatures, but do not provide such order in the isotropic state at higher temperatures. The varying degree to which the absorptive, reflective, or fluorescent particles interact with light in the two states can be exploited to make many varieties of thermochromic filters. Thermochromic filters can control the flow of light and radiant heat through selective reflection, transmission, absorption, and/or re-emission. The filters have particular application in passive or active light-regulating and temperature-regulating films, materials, and devices, and particularly as construction materials and building and vehicle surfaces. | 10-14-2010 |
20110025934 | THERMALLY SWITCHED OPTICAL FILTER INCORPORATING A REFRACTIVE OPTICAL STRUCTURE - A thermochromic, thermotropic, or thermoreflective filter relies on a mismatch between the index of refraction of a thermotropic material (e.g., a liquid crystal) and a substrate material that includes refractive or diffractive features. At colder operating temperatures, the refraction mismatches are eliminated or minimized such that the filter becomes transparent, whereas at high operating temperatures the refraction mismatches are increased such that for light at appropriate incidence angles, the structure becomes highly reflective. This filter has particular but not exclusive application as a temperature-controlled “smart mirror” for use in windows, walls, roofing, and other building materials. | 02-03-2011 |
20110128457 | ALIGNMENT FACILITIES FOR OPTICAL DYES - Provided are phase-separating polymer systems including a cured polymeric liquid crystal matrix phase and a guest phase including at least one photoactive material where the guest phase separates from the matrix phase during the curing process. Optical elements, including ophthalmic elements and other articles of manufacture including the phase-separating polymer systems are also disclosed. Methods of forming a liquid crystal phase-separating photoactive polymer system are also described. | 06-02-2011 |
20110292310 | LIQUID CRYSTAL DISPLAY AND OPERATION METHOD THEREOF - Disclosed is a liquid crystal display device to display moving and still images with superior image quality, comparable to common LCDs and to display memory images by a voltage lower than conventional electronic paper, and a method for operating the same. The liquid crystal display device comprises: a pair of electrode substrates facing each other; an orientation film of a polymer material on the pair of electrode substrates; a liquid crystal material between the pair of electrode substrates, wherein the liquid crystal display device displays an image by varying orientation of the liquid crystal material and a surfacial region of the orientation film, depending on temperature and voltage. | 12-01-2011 |
20130155338 | 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 5-95% of a compound of the formula (I), in particular for use in the switch elements according to the invention. | 06-20-2013 |
20130308069 | LAYER ARRANGEMENT FOR THE REGULATION OF LIGHT TRANSMISSION - The present invention relates to a layer arrangement which changes the transmission of light depending on its temperature, where the layer arrangement has a first polarisation layer, a switching layer which influences the polarisation properties of light depending on the temperature, and a second polarisation layer, as well as an additional NIR transmission-preventing layer. | 11-21-2013 |
20140055696 | CURVED LIQUID CRYSTAL DISPLAY PANEL AND CURVED DISPLAY DEVICE HAVING THE SAME - A curved liquid crystal display panel includes an upper substrate having a curved shape, a liquid crystal layer, a lower substrate having a curved shape, where the lower substrate is combined with the upper substrate and the liquid crystal layer is disposed between the upper substrate and the lower substrate, and a heating line disposed on at least one of the upper substrate and the lower substrate and which provides heat to the liquid crystal layer such that a temperature of the liquid crystal layer increases. | 02-27-2014 |
20140211113 | THERMALLY ACTIVATED MATTRESS COVER AND DISPLAY - A thermally activated display with a temperature management feature and a cover comprising a thermochromic material generally changes from a first color to a second color. The temperature management feature can be a mattress and has a top surface. The cover is substantially flush with the top surface. | 07-31-2014 |
20140218650 | LAYER ARRANGEMENT FOR THE REGULATION OF LIGHT TRANSMISSION - A layer arrangement ( | 08-07-2014 |
20140293174 | SWITCH ELEMENT COMPRISING A LIQUID CRYSTALLINE MEDIUM - The invention relates to a temperature-controlled switching element for the regulation of light transmission. The invention furthermore relates to a mixture comprising at least one liquid-crystalline compound, at least one monomer compound which represents a monofunctional compound, and at least one monomer compound which represents a multifunctional compound. The invention again furthermore relates to the use of the said mixture for the production of the switching element according to the invention. | 10-02-2014 |
20150353828 | LIQUID CRYSTAL FILM, METHOD FOR PREPARING THE FILM, TEMPERATURE-RESPONSIVE DEVICE COMPRISING THE FILM, AND CIRCULAR POLARIZER MADE THEREFROM - The present invention relates to a composite material, a liquid crystal film, a method for preparing the film, a temperature-responsive device comprising the film, and a circular polarizer made therefrom. The liquid crystal film comprises the composite material of the present invention, wherein the composite material comprises a polymer network of a cholesteric liquid crystal material, and a chiral material capable of hydrogen-bond-assisted self-assembly, and wherein the chiral material is dispersed in and restrained by the polymer network. The obtained liquid crystal film can exhibit a high reflectivity and a high transmittance as well as a broad band reflection. And, the liquid crystal film is applicable for an industrial development because it can be produced with a simple process and at a lower cost, and requires a lower UV luminous intensity. | 12-10-2015 |
20160060530 | DEVICE CONTAINING A LIQUID-CRYSTALLINE MEDIUM - The present invention relates to a temperature-reactive device for the regulation of light transmission, containing a liquid-crystalline medium and a compound of formula I, capable of promoting or inducing homeotropic alignment to the adjacent liquid crystal medium at a given temperature. The invention furthermore relates to a process for the temperature-dependent control of light transmission through a layer of a liquid-crystalline medium. | 03-03-2016 |
349021000 | By heating electrode | 4 |
20120268674 | LIQUID CRYSTAL FLAT PANEL DISPLAY WITH AN INTEGRAL HEATER OF PREDETERMINABLE CAPACITY - A flat panel liquid crystal display has a front plate and a rear plate with a layer of liquid crystal material maintained in a cavity between them. A thin film transistor array layer is disposed in the cavity, as is an integral heater with a grid of intersecting sets of horizontal and vertical conductors. The heating capacity of the heater is predeterminably set by selectively interrupting continuity of at least some of the intersecting conductors. In some embodiments, the discontinuities occur in only one set of the intersecting conductors. | 10-25-2012 |
20130194523 | Heater for Liquid Crystal Display - A heater for a display such as a liquid crystal display (LCD). The heater includes a transparent film, a transparent conductive layer formed on a surface of the transparent film, and an optically clear adhesive (OCA) disposed over the conductive layer. The heater may be laminated directly to a rear transparent (e.g., glass) plate of an LC cell of the LCD using the OCA in a manner that is substantially free of air gaps or bubbles between the heater and the LC cell. Front and rear polarizers may be respectively disposed on outside surfaces of the LC cell and the heater. | 08-01-2013 |
20150098032 | PHASE CHANGE MATERIAL DISPLAY DEVICE - A phase change material display device includes a first substrates a first electrode, a heat generation layer, a phase change material layer and a second electrode. The first electrode is disposed on the first substrate. The heat generation layer is on the first electrode. The phase change material layer is on the heat generation layer, and is configured with a phase change material of which optical characteristic is changed depending on temperature. The second electrode is disposed on the phase change material layer. | 04-09-2015 |
20150138462 | LIQUID CRYSTAL DISPLAY PANEL - A liquid crystal display panel includes a TFT array substrate, a color filter substrate, and a liquid crystal layer encapsulated between the TFT array substrate and the color filter substrate. The TFT array substrate, the color filter substrate and the liquid crystal layer collectively form a display area, and a margin area surrounding the display area, where the display area includes sub-pixel units surrounded by data lines and scanning lines. Either of the TFT array substrate and the color filter substrate includes heating metal members, and a pair of connection electrodes electrically connected to the plurality of heating metal members, where the heating metal members are formed on an inner side of the TFT array substrate and/or the color filter substrate and are located in the display area, and where the pair of connection electrodes are configured to provide a voltage to the heating metal members. | 05-21-2015 |
349022000 | By light beam heating (e.g., IR, laser, etc.) | 3 |
20110176076 | LIGHTING DEVICE WITH THERMALLY VARIABLE REFLECTING ELEMENT - The invention provides a lighting device ( | 07-21-2011 |
20120188474 | THERMAL IMAGER - The imager includes a lens for focusing infrared light forming a thermal image onto a liquid crystal array thereby changing the temperature of the liquid crystals to alter a physical property of the liquid crystals. A source of visible polarized light is arranged to illuminate the liquid crystal array so that the polarization of light reflected from the liquid crystal array varies with changes in temperature of the liquid crystals. A cross polarizer receives and transmits therethrough the light reflected from the liquid crystal array, the cross polarizer adapted to change the intensity of the light. An imager receives and detects the change in intensity of the light from the cross polarizer so that the thermal image is recreated as an electronic signal. In a preferred embodiment, the physical property is index of refraction and the liquid crystal array includes birefringent nematic liquid crystals. | 07-26-2012 |
20140253834 | Photochromic Optical Filter Incorporating a Thermochromic Gate - An optical shutter device includes a temperature responsive gate and a photochromic attenuator arranged such that at low temperatures the device is largely transmissive to solar or other radiation within a given band of wavelengths and, at high temperatures, the device is largely nontransmissive when a flux of trigger wavelengths is present and largely transmissive when a flux of trigger wavelengths is not present. | 09-11-2014 |