Abstract: A case for a portable terminal using a color liquid crystal uses a Peltier device to vary the color of the case by means of electrical heating and cooling the interior of the case. The case includes a temperature control apparatus for emitting electrical heat, when an electrical current is applied thereto, and simultaneously cooling the opposite side; a liquid crystal application agent positioned on the upper portion of the temperature control apparatus and adapted to vary the color by means of the electrical heat; and a cooling unit positioned opposite to an upper portion of the temperature control apparatus to cool heat-generating devices inside the terminal.

Abstract: A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) film, and a protective layer. The display device can repeatedly record and erase visible information.

Abstract: A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) film, and a protective layer. The display device can repeatedly record and erase visible information.

Abstract: A display system includes a display arranged to receive an image wise pattern of light to form an image, including, a pair of conductors, at least one conductor being transparent, a layer of cholesteric liquid crystal material disposed between the conductors, the liquid crystal material having multiple stable optical states at zero electrical field, and a light absorber for forming an image wise thermal pattern in the liquid crystal sufficient to change the optical state of the cholesteric liquid crystal in response to an image wise pattern of light; a display writer, including, a light source for producing a flash of light of sufficient intensity to generate sufficient heat in the light absorber to change the optical state of the cholesteric liquid crystal, a mask located between the light source and the display for defining the image wise pattern of light, a display drive connectable to the conductors for generating an electric field between the conductors for changing the optical state of the cholesteric l

Abstract: Disclosed herein is a recording method for recording an image on a thermosensible image bearing medium that contains liquid crystal material. The liquid crystal exhibits a cholesteric phase at a temperature range higher than a room temperature so as to reflect selected wavelength of light based on heated temperature within the temperature range. Since the cholesteric liquid crystal material has a different response time for each selective reflection wavelength, an optimum energy application time is required for obtaining a desired recording color. Accordingly, in the recording method, it is getting higher the heating temperature, shorter the application time. The application time can be adjusted by the pulse width and/or pulse number of the applied energy.

Abstract: A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) film, and a protective layer. The display device can repeatedly record and erase visible information.

Abstract: An electronic device with a conversion module for a liquid crystal display. The electronic device includes a motherboard, a liquid crystal display, a fixing member, a cushion member, and a converter board. The motherboard includes a heat dissipation module. The converter board is coupled to the motherboard and the liquid crystal display respectively, and converts a first signal from the motherboard to a second signal suitable for use by the liquid crystal display. The fixing member connects the converter board and the heat dissipation module so that the converter board is fixed on the heat dissipation module. The cushion member is disposed between the converter board and the heat dissipation module.

Abstract: A known display device consists of a sheet-like support which is covered with liquid thermocromic crystals. The crystals are tempered by individual power supply to individual heatable elements, which lie close to the crystals and are placed between the sheet-like support and the crystals. The crystals assume different shades of color dependent on the given temperature so that hereby the color of the crystals will form a certain pattern. In order to improve the possibilities to control the tempering of the individual crystals and also protect them from being effected by the ambient temperature and from mechanical damage, the crystals have an underlying arrangement which is controlled to cool down th crystals and/or keep the sheet-like support of the crystals at a certain temperature. This temperature is lower than the temperature, at which the crystals are colored. Further the crystals are covered by a coating of lacquer over the complete sheet-like support.

Abstract: Display with a heater, a) the display having at least one display glass, b) the heater having an electrically operated heating element connected to a voltage supply (UB, GND), c) the heating element comprising a thin layer, d) the layer being made of a material forming an electrical resistance, and e) the layer being applied over a surface area to the at least one display glass or being embedded over a surface area in the display.

Abstract: A liquid crystal display having a liquid crystal cell (1) has electrical heating formed by an electrically conductive heating layer (3) on a substrate (2). On opposite sides, a clamp (4) forming a busbar in each case reaches over the substrate (2) and bears on the heating layer (3) by a limb (5). For connection to the heating current source, a spring element (7) is arranged between a limb (6) of the clamp (4) and a printed circuit board (8).

Abstract: Device for controlling spreading of liquid crystal including a stage, and variable temperature controlling means in the stage for controlling spreading of the liquid crystal, wherein the variable temperature controlling means is formed of a heating wire, and controls a temperature within a varied temperature of approximately 30°-120°, thereby reducing gaps of liquid crystal drops.

Abstract: Disclosed herein is an image forming method for forming an image on a reversible thermo-sensitive recording medium provided with a recording layer containing liquid crystal that exhibits a solid phase or a fixed phase at a room temperature and a cholesteric liquid crystal phase at higher temperature. Specifically, the image forming method comprises: a first heating process for heating the liquid crystal in a crystal phase to a first temperature that allows the liquid crystal to exhibit the cholesteric liquid crystal phase or an isotropic phase to form an image and for rapidly cooling the liquid crystal to fix thus formed image; and a second heating process for heating at least a part of an area of the recording medium containing at least a part of an area where the image has been formed to allow at least a part of the image to discolor or develop a color and for rapidly cooling the liquid crystal to fix thus discolored or developed image.

Abstract: A spatial light modulating device includes: an electrically-addressed type element for being addressed by electric signals representing information to be written, the electrically-addressed type element including an image display portion having a pixel structure, the electrically-addressed type element being inputted with write light; an optically-addressed type spatial light modulator including a thin film material portion and a pair of substrates, the thin film material portion being provided between the pair of substrates, the thin film material portion having an optical addressing layer and a light modulation layer which are provided one on the other, the optically-addressed type spatial light modulator being inputted with read light; and a compensation layer having a predetermined thickness and provided between the image display portion and the thin film material portion.

Abstract: A heat reversible recording medium is disclosed which includes a cholesteric liquid crystal compound. By selective application of differing temperature profiles, regions of the recording medium can be fixed in states which selectively reflect light in different wavelengths thus providing the ability to fix color images in the medium. The disclosure also includes a method of recording a color image using a medium which includes a cholesteric liquid crystal compound, an apparatus for fixing an image in the recording medium as well as several cholesteric liquid crystal compounds which are suitable for use in the method and apparatus.

Abstract: The object of the present invention is to provide a novel liquid crystal display material having an excellent contrast ratio, a display method and a display device using the material. The present invention uses a liquid crystal display material comprising a polymer in which a liquid crystal is dispersed in a dissolvable state or a phase separable state, wherein the liquid crystal dissolves in the polymer at high temperatures and separates from the polymer at low temperatures, and a contrast ratio (B/A) of a reflectance (A) of the display material cooled from the dissolution state at a rate of 10° C./sec and a reflectance (B) of the display material cooled from the dissolution state at a rate of 4° C./sec is not less than 2. The image forming state can be maintained by controlling the cooling rate from the dissolution state to maintain the liquid crystal in translucent state.

Abstract: A reversible recording medium has a support, a reversible light absorbing layer formed on the support, and, a reversible cholesteric reflection layer formed on the reversible light absorbing layer, containing a cholesteric liquid crystalline compound capable of assuming a cholesteric liquid crystalline phase reversibly showing iridescent colors by selective reflection. A method for reversibly recording an image in the above-mentioned recording medium, and a reversible recording apparatus using the above-mentioned recording medium are also disclosed.

Abstract: The invention is for a process for manufacturing a liquid crystal display element for use in a color display using resist materials. The process comprises forming a transparent conductive film on one side of a transparent substrate; patterning the transparent conductive film by coating with a colored positive resist followed by exposure and development, coating a black-colored negative resist onto the transparent film; forming black stripes by subjecting the negative resist to exposure from the back side of the transparent substrate and development of the negative resist.

Abstract: In a method for displaying an image: a polarization inversion pattern is produced in a ferroelectric member in accordance with image information so as to produce a surface charge pattern corresponding to the polarization inversion pattern; and an image contrast is produced in a contrast production member by the influence of the surface charge pattern, where the contrast production member is joined to the ferroelectric member. The polarization inversion pattern may be produced by heating the ferroelectric member so as to produce a heat distribution corresponding to the image information in the ferroelectric member. Further, the ferroelectric member may be heated by applying infrared light carrying the image information to the ferroelectric member.

Abstract: A videocassette has a display portion for displaying recorded contents. The display portion is formed with a display device. The display device has a conductive layer, a PDLC (polymer-dispersed liquid crystal) film, and a protective layer. The display device can repeatedly record and erase visible information.

Abstract: The invention is an energy efficient, thermochromic device for windows that allows sunlight or solar radiation into a building or structure when the ambient temperature is low and substantially blocks solar radiation when the ambient temperature is high, especially when sunlight is directly on the window. Additionally, the invention is a thermochromic device useful as variable transmission shutters for use in lenses or filters.

Abstract: A color image is displayed by using a display panel with a color pattern layer which is formed on one side of a transparent substrate and has, for example, three separate sets of transparent pixel areas in red, green and blue colors which constitute a regularly repetitive pattern and a set of opaque band-like areas by which each pixel area is bordered. The display panel further comprises, usually on the opposite side of the substrate, either a thermal recording layer which exhibits reversible changes in transmittance with temperature or a magnetic recording layer which contains flaky particles of a ferromagnetic metal dispersed in a polymer and exhibits reversible changes in transmittance with orientations of the flaky particles.

Abstract: This invention describes tiling structures, methods, and circuits for making large flat-panel displays from an array of microdisplays. The inventive displays overcome the intrinsic size limits of monolithic microdisplays and allow the construction of large area, low cost, high brightness, high contrast magnified view or rear projection flat panel displays having visually imperceptible seams and are optically uniform. A structure wherein multiple microdisplay tiles are mounted on a thermally matched common substrate having inherent temperature control features is described. Additional integrated circuits such as CMOS circuits may be embedded either in the back plane of the microdisplay tiles themselves and/or in the common substrate if the common substrate is made from a suitable semiconductor material. These circuits can provide functions such pixel addressing, image control, or even complete microprocessor functions within the flat-panel display assembly itself.

Abstract: A liquid crystal cell is described which includes adaptive means to relieve hydrostatic pressure and means for restraining the aperture portion of the cell, and which may be assembled together with thick members such as precision windows, or may be built into optical assemblies incorporating several cells placed optically in series, such as tunable filters or multiple-cell optical switches, without defeating the pressure-relief mechanism.

Abstract: A miniature single monolithic chip is to be used to create a viewscreen for Computers, Television or Video applications. Magnifying this display would produce an inexpensive screen capable of being mounted on face goggles, or alternate stand alone apparatus. Using an optic system, the eye could perceive an image of various size screens. The chip being so close to the eye would require very little illumination. Advantages of this apparatus are numerous especially due to low power consumption and light weight. Ideally this would be suitable for portable lap top Computer and Video systems. Dual chips could also be used to produce true Three Dimensional images capable of large screen viewing. The device can be back lit and projected onto large screens using transparent components. A heat sensitive coating on this chip changes appearance with temperature changes for each pixel on the display.

Abstract: A liquid crystal orienting method orients a liquid crystal of a liquid crystal display medium (1) having a base (2), a conductive layer (3) formed on the base (2), and a polymer dispersed liquid crystal film (PDLC film) (4) formed of a material prepared by dispersing the liquid crystal in a polymer. A charger (71) is disposed opposite to the surface of the liquid crystal display medium (1) on the side of the PDLC film (4) so as not to come into contact with the liquid crystal display medium (1), and a grounded electrode (72) is disposed near the charger (71) so as to come into contact with the liquid crystal display medium (1). A potential difference is created through the conductive layer (3) between a portion of the liquid crystal display medium (1) charged by the charger (71) and a portion of the same in contact with the electrode (72) by electrostatic induction. Consequently, a vertical electric field is applied to the PDLC film (4) to orient the liquid crystal of the PDLC film (4).

Abstract: A multilayered thermochromic display system is provided, wherein a thermochromic substance is applied to inert films in stacked layers with a non-invasive barrier between each layer of thermochromic substance. The thermochromic substance in each layer responds in a different temperature range so that as the temperature changes, the display exhibits repeated sequences of colors. The use of multiple layers with different temperature sensitivities enables the use of the displays over a broad range of temperatures.

Abstract: The present invention is a thermally addressed display and a method for manufacturing a thermally addressed display. The device uses thermoelectric elements to transition liquid crystal molecules from one optical state to another. The display can be manufactured on a flexible film and can be fabricated as either a color or monochrome display. The display can be constructed as a seven segment display, a pixel based display, or a symbolic display.

Abstract: Closely packed small particles dispersed in a liquid crystalline phase, whereby the particles can be moved toward one another by external influence, constitute a liquid crystalline medium permitting the generation of bistable images without the requirement of matching the indices of refraction of the components.

Abstract: A photovoltaic module capable of being oriented by hand with respect to the sun including an electrically activated liquid crystal display device for generating a visual informational display which indicates at least the power generating effectiveness of the module for its instantaneous orientation with respect to the sun, and an array of photovoltaic cells for generating a first power output for a load and a second power output for activating the liquid crystal display device and a third power output signal for the liquid crystal display device indicating the power generating effectiveness of the module.

Abstract: A color image is displayed by using a display panel with a color pattern layer which is formed on one side of a transparent substrate and has, for example, three separate sets of transparent pixel areas in red, green and blue colors which constitute a regularly repetitive pattern and a set of opaque band-like areas by which each pixel area is bordered. An opaque toner is applied to the opposite side of the transparent substrate in areas opposite to selected pixel areas of the color pattern layer, and the display panel is backlighted from the side on which the color pattern layer exists. A clear color image appears when the backlighted display panel is viewed from the opposite side.