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| Number | Title | Issue Date |
| 7286111 | Apparatus for electro-optically writing a display A display writer for writing on a light writable display of the type having a layer of cholesteric liquid crystal material disposed between two conductors, the cholesteric liquid crystal material having multiple stable optical states at zero electrical field; and a ... | 10/23/2007 |
| 7170575 | Homeotropically aligned liquid crystal layer and process for the homeotropic alignment of liquid crystals on plastic substrates Homeotropically oriented layers and films of liquid crystals especially on polymeric substrates. The layers and films, which also can be multi-layered films comprising a homeotropically aligned anisotropic film, are preparable by application of an orientation layer ... | 01/30/2007 |
| 7131584 | Apparatus and means for updating a memory display A display system includes a light writable display associated with an identification code and arranged to receive an image wise pattern of light to form an image on the display; a display writer for producing the image wise pattern of light for writing the image on ... | 11/07/2006 |
| 7119759 | Machine-readable displays A reflective electro-optic display (200) has a bar code display area (206) arranged to display a bar code readable by a bar code scanner. ... | 10/10/2006 |
| 7116316 | Audible and visual effects as a result of adaptive tablet scanning One aspect of the invention involves a writing tablet comprising a housing having a writing surface and internal logic placed within the housing and situated below the writing surface. The internal logic includes imaging sensor, a light source and a controller. The ... | 10/03/2006 |
| 7053921 | Transfer apparatus The transfer apparatus includes a light source, a light linearizing device for linearizing light from the light source, a transmission type image display device, and a photosensitive recording medium. The light source, the light linearizing device, the transmission ... | 05/30/2006 |
| 7006165 | Bistable liquid crystal devices In a liquid crystal device a substrate (1) favors at least two stable or metastable differently directed liquid crystal alignments, and switching means for causing the liquid crystal material to switch between the alignments includes means arranged for optica... | 02/28/2006 |
| 6924850 | Flat panel image display structures and method of manufacture Disclosed are improved beam steering and scanning devices which utilize cholesteric liquid crystal (CLC) elements arranged in branches to form a logic tree structure. Each branch thereof comprises an active and passive CLC element; the former further comprising a ha... | 08/02/2005 |
| 6922350 | Reducing the effect of write disturbs in polymer memories The write disturb that occurs in polymer memories may be reduced by writing back data after a read in a fashion which offsets any effect on the polarity of bits in bit lines associated with the addressed bit. For example, each time the data is written back, its pola... | 07/26/2005 |
| 6910774 | Laser projection apparatus with liquid-crystal light valves and scanning reading beam Laser lines at 635 nm or longer (ideally 647 nm) are preferred for red, giving energy-efficient, bright, rapid-motion images with rich, full film-comparable colors. Green and blue lines are used too—and cyan retained for best color mixing, an extra light-power boo... | 06/28/2005 |
| 6885409 | Cholesteric liquid crystal display system 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 li... | 04/26/2005 |
| 6829020 | Recording method and recording apparatus for thermoreversible recording medium 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 selec... | 12/07/2004 |
| 6700639 | Liquid crystal display apparatus and production method A glass sheet for a liquid crystal display apparatus with a scribe groove formed thereon is divided by cooling the scribe groove and its surroundings and heating surrounding areas on both sides of the scribe groove to extend the scribe groove to a backsid... | 03/02/2004 |
| 6552756 | Recording method and recording device using a heat reversible recording medium 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 dif... | 04/22/2003 |
| 6524759 | Reversible recording medium, and reversible recording method and apparatus using the same 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 capa... | 02/25/2003 |
| 6183092 | Laser projection apparatus with liquid-crystal light valves and scanning reading beam Laser lines at 635 nm or longer (ideally 647 nm) are preferred for red, giving energy-efficient, bright, rapid-motion images with rich, full film-comparable colors. Green and blue lines are used too--and cyan retained for best color mixing, an extra light... | 02/06/2001 |
| 6160603 | Liquid crystal mask, liquid crystal laser marker, and marking method using the same According to the present invention, no gap occurs in the joint between adjacent blocks when a design is marked in several blocks. In a liquid crystal laser marker for making a liquid crystal mask (2) with a plurality of pixels display a design to be marke... | 12/12/2000 |
| 6133979 | Liquid crystal display device with internal heating element A liquid crystal display device Includes a liquid crystal panel having a first substrate, a second substrate, and a liquid crystal layer between the first and the second substrates. A first polarizer is on the first substrate and a second polarizer on the... | 10/17/2000 |
| 6090508 | Optically anisotropic recording medium and method of recording and erasing information using the same An optically anisotropic recording medium and a method of recording and erasing method using the recording medium are disclosed, which comprises the steps of applying heat or light to the recording medium which comprises a recording layer made of opticall... | 07/18/2000 |
| 5786041 | Alignment film, a method for producing the alignment film and a liquid crystal display device using the alignment film An alignment-film in which the pretilt angle is changed by ultraviolet irradiation, a material for forming the same, a liquid crystal display device using the alignment film, a method for producing an alignment-film formation material, and a method for pr... | 07/28/1998 |
| 5742006 | Electric cell of the type comprising two parallel plates or substrates in particular made of plastic material separated from each other by a sealing frame An electric cell comprises first and second parallel flexible substrates, set apart from each other at a determined spacing, carrying electrodes on their opposing faces, the substrates enclosing between them a layer of sensitive material which can change ... | 04/21/1998 |
| 5729320 | Liquid crystalline medium including closely packed particles and method for generating images using same 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 requiremen... | 03/17/1998 |
| 5589237 | Reversible display medium A reversible display medium comprising substrate 1 having thereon recording layer 2 containing a side chain type high polymeric liquid crystal capable of repeatedly and reversibly switching between a transparent state and a light-scattered state by the ac... | 12/31/1996 |
| 5579135 | Optical element An optical element which comprises a liquid crystal dispersion film layer which is composed of a spongy matrix polymer and a liquid crystal such that they become separated at use temperatures and mixed at high temperatures. The mixture remains mixed upon ... | 11/26/1996 |
| 5555205 | Method device for recording information, and method for measuring the transmittance of liquid crystals, which is applied to recording information The invention provides a system in which a photoelectric sensor having a transparent electrode and a photoconductive layer formed on a transparent substrate in this order is opposed to a liquid crystal recording medium having a transparent electrode and a... | 09/10/1996 |
| 5527650 | Image forming method recording medium and visible image reproducing medium Provided an image forming method comprising the steps of; forming electric charges on a recording layer by charging the recording medium comprising a conductive substrate and, provided thereon a photoconductive layer and a recording layer containing a polymeri... | 06/18/1996 |
| 5363117 | Laser-addressed liquid crystal display A liquid crystal display apparatus comprises a laser beam source for emitting a laser beam, a liquid crystal cell for providing an image by means of the effect of the laser beam heating and which contains a liquid crystal layer positioned between a pair o... | 11/08/1994 |
| 5343318 | Liquid crystal cell having an alignment layer with a temperature dependent tilt angle The liquid crystal cell with an alignment layer in the form of a soluble halogenated polymer of the ethylenic substituted ethylenic cycloaliphatic or heterocycloaliphatic type which induces homeotropic or planar alignment of the crystal molecules in conta... | 08/30/1994 |
| 5319481 | Encapsulated liquid crystal optical read/write storage medium and system An optical read/write information storage system (2), includes a liquid crystal information storage medium (1) for storing information written thereto and being capable of being read, including plural volumes (21) of liquid crystal material (23) in a cont... | 06/07/1994 |
| 5317345 | Image formation apparatus having erasing means responsive to operation status An image formation apparatus for selectively storing image data received from image data outputting means in an optical image memory by beam light and printing it out on a recording medium, the image formation apparatus including, clocking means for clock... | 05/31/1994 |
| 5268783 | Liquid crystal device including a polymer having a surface energy of at most 25 dyn/cm, display apparatus using same and display method using same A liquid crystal device is constituted by disposing a display layer between a pair of electrode plates. The display layer comprises a polymer having a surface energy of 25 dyn/cm or below and a low-molecular weight mesomorphic compound incompatible with t... | 12/07/1993 |
| 5245438 | Image formation apparatus having selective erasing capability An image formation apparatus includes a writing device for selectively writing image data on a liquid crystal cell by beam light, a printer for printing out an image on a recording medium, an erasing device for erasing the image written on the liquid crys... | 09/14/1993 |
| 5212027 | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on Novel laser-optical recording elements which can be repeatedly erased and recorded on contain recording layers (a) which exhibit enantiotropic, ferroelectric smectic liquid crystalline (Sc*) behavior, so that they can be switched back and forth... | 05/18/1993 |
| 5189534 | Liquid crystal color displays which cool from isotropic to twisted nematic to smectic A color display formed of information of one color on a different color background is projected onto a screen. Light from the bulb is passed serially through a neutral polarizer, a smectic liquid crystal cell, and a further polarizer. The cell comprises a... | 02/23/1993 |
| 5170270 | Image writing device An image writing device including a beam source emitting laser beam, a memory for storing a plurality of frames of image data, a modulator for modulating the laser beam with the image data, at least one liquid crystal cell, a scanner for scanning the liqu... | 12/08/1992 |
| 5157528 | Devices and process for producing microfilm and microfiche records An updatable optical storage device, which may be in microfiche configuration, includes two electrically conductive layers (2,6) between which a layer (5) of a liquid crystal storage material and a layer (3) of a photoconductive material are sandwiched. I... | 10/20/1992 |
| 5116110 | Partially coherent optical system with scattering type object An optical system having a projection lens for imaging a scattering type thermo optic cell on an image receiving surface, comprising optical source apparatus for generating an optical beam and an image created on the scattering type thermo optic cell havi... | 05/26/1992 |
| 5110698 | Method of recording A rewritable or repeatedly employable recording medium having a base and a recording layer film provided on said base, characterized in that said recording layer film is formed by a thermotropic cholesteric liquid crystal polyester.... | 05/05/1992 |
| 5078474 | Exposure apparatus having a magnifying lens system An exposure apparatus for use in fabricating a printed circuit board. A thermally-written liquid-crystal light valve is provided in which a pattern is formed by opaque portions and transparent portions. A writing optical system directs a heating spot ligh... | 01/07/1992 |
| 5066107 | Liquid crystal display medium, liquid crystal display method and liquid crystal display apparatus for outputting color images A display medium having a display face is composed of a plurality of display layers laminated parallel to the display face. Each display layer comprises a polymer liquid crystal having a mesomorphic temperature range between its glass transition temperatu... | 11/19/1991 |
