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7616287 |
Liquid crystal display element
A liquid crystal display element according to the present invention includes one or more sets of combinations of a pair of substrates, a liquid crystal layer composed of a liquid crystal...
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7595856 |
Black and white color cholesteric liquid crystal display
A cholesteric display may be formed, in some embodiments, using a single display element to produce multi-colors for display. A cholesteric material may be sandwiched between a pair of substrates,...
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7593079 |
Optical device, light-condensing backlight system, and liquid crystal display
An optical element of the invention comprises at least three laminated circular-polarization-type-reflection polarizers (a) whose wavelength bands for selective reflection of polarized light...
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7576829 |
Liquid crystal display device
Presents a liquid crystal display device that does not require a surface orientation treatment, dramatically improves the response rate of dynamic image displays and does not experience light leaks...
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7575787 |
Liquid crystal composition, liquid crystal display element using the same, and electronic paper including the same
The invention has an object to provide a liquid crystal composite capable of sufficiently reducing the scattering of light in a focal conic state, a liquid crystal display element excellent in...
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7564518 |
Reflective cholesteric displays employing circular polarizers with the polarity of the front polarizer opposite to both the back polarizer and the bragg reflection
This invention relates to a high brightness and high contrast ratio reflective cholesteric displays employing circular polarizers. The front circular polarizer has a predetermined polarity that is...
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7511776 |
Liquid crystal electro-optical device and method of driving the same
An electric field that is parallel with a TFT substrate is formed by a pair of electrodes formed on the TFT substrate. Liquid crystal molecules in a light modulating layer are caused to respond...
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7499125 |
Method of fabricating electro-optical devices with polymer-stabilized liquid crystal molecules
In a preparation method, a chiral or cholesteric liquid crystal, a photoreactive monomer, and a photoinitiator are disposed in a liquid crystal cell. A principal surface of the liquid crystal cell...
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7391546 |
Discrimination medium and discrimination method using the same
A discrimination medium 10 a includes a first double layered body 101 having a right-handed circular polarization polymer cholesteric liquid crystal layer 11 and a left-handed circular...
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7382424 |
Reflective chiral-nematic liquid crystal display with broadband reflection
A display sheet comprising a substrate carrying layers of material; including a polymer-dispersed chiral-nematic liquid-crystal layer having a first high reflection state within the visible light...
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7352422 |
Retardation optical element and method of producing the same, and polarization element and liquid crystal display, each including retardation optical element
Provided herein is a retardation optical element 10 that produces no bright and dark fringes on a displayed image even when placed between a liquid crystal cell 104 and a polarizer 102 B and...
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7333166 |
Matrix display through thermal treatment
The present invention relates to a display comprising a substrate, a patterned conductor, and a liquid crystal material having cleared areas and electrically writeable areas. The invention also...
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7298442 |
Cholesteric liquid crystal optical bodies and methods of manufacture and use
An optical body includes a) first particles comprising a first cholesteric liquid crystal material and b) a second cholesteric liquid crystal material. The first particles and the second...
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7295278 |
Full color cholesteric liquid crystal display
A cholesteric display may be formed, in some embodiments, using a single display element to produce multi-colors for display. A cholesteric material may be sandwiched between a pair of substrates,...
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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...
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7277141 |
Optical bodies containing cholesteric liquid crystal material and methods of manufacture
An optical body includes a substrate and a cholesteric liquid crystal layer disposed on the substrate. The cholesteric liquid crystal layer has a non-uniform pitch along a thickness direction of...
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7265810 |
Liquid crystal display device and manufacturing method of liquid crystal display device
The present invention provides a liquid crystal display device having uniform alignment of monostable ferroelectric liquid crystal, and a manufacturing method of the liquid crystal display device....
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7202926 |
Cholesteric reflective retardation optical element with directors at top surface of optical element parallel to those at the bottom surface of the optical element
Provided herein is a retardation optical element 10 that produces no bright and dark fringes on a displayed image even when placed between a liquid crystal cell 104 and a polarizer 102 B and...
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7148946 |
Optical device and liquid-crystal display apparatus
An optical device including a laminate of cholesteric liquid-crystal layers in which the wavelength ranges of selective reflection of circularly polarized light beams are out of visible light...
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7068344 |
Cholesteric liquid crystal optical bodies and methods of manufacture and use
The method of making an optical body includes coating a mixture that includes a plurality of cholesteric liquid crystal compositions, and a solvent on a substrate. Each cholesteric liquid crystal...
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7061559 |
Stacked color liquid crystal display device
A liquid crystal display device includes cell wall structure and a chiral nematic liquid crystal material. The cell wall structure and the liquid crystal cooperate to form focal conic and twisted...
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7038743 |
Electro-optical devices from polymer-stabilized liquid crystal molecules
An electro-optic device includes a liquid crystal cell ( 10, 10 ′) and at least one electrode ( 40, 42, 40′, 42 ′) arranged to selectively electrically bias the liquid crystal cell ( 10, 10...
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7033653 |
Birefringent marking
The invention relates to a birefringent marking comprising a liquid crystal material. The invention further relates to method of providing such a birefringent marking and to the use of the...
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7030949 |
Optical display including a cholesteric layer, a display device and a diffusing layer on an exit side of the cholesteric layer
A wavelength-selecting optical element includes a cholesteric layer that reflects or transmits either of a right-handed circularly polarized light component and a left-handed circularly polarized...
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6989875 |
Liquid crystal display device using cholesteric liquid crystal and a manufacturing method thereof
A liquid crystal display device includes a liquid crystal cell having a cholesteric liquid crystal color filter; an integrated collimating polarizer under the liquid crystal cell, the integrated...
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6947114 |
LCD element including regions where helical axes of LC molecules of neighboring domains in focalconic state extend in same direction
A liquid crystal light modulation element is provided that includes a liquid crystal layer held between a pair of substrates. The liquid crystal layer includes a liquid crystal material that...
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6937305 |
Cholesteric liquid crystal color filter layer and manufacturing method thereof
A cholesteric liquid crystal (CLC) color filter layer for reflective LCD device includes an additional blue CLC color filter in the red and/or green CLC color filter to increase a color...
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6924873 |
Liquid crystal display device and its production method
The objective of the present invention is to provide a liquid crystal display device for displaying colors by transmission and reflection modes and a method for producing such devices, whereby the...
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6900469 |
Liquid crystal display element
Disclosed is a liquid crystal display apparatus comprising a pair of substrates and a liquid crystal layer provided between the substrates, the liquid crystal layer containing a liquid crystal...
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6897906 |
Rewritable label for recording time information
A method of recording rewritable time related information on a label, includes the steps of providing an electrically rewritable label associated with an article which includes a plurality of...
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6888607 |
Rewritable sign system
Rewritable signs ( 100, 1300 ) that include bistable cholesteric liquid crystal layers ( 102, 1402, 1404, 1406 ) are provided. According to one embodiment a rewritable sign ( 100 ) is devoid of...
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6882401 |
Light modulation medium and light modulation method
A light modulation medium comprises a light modulation element having a pair of substrates and plural light modulation layers arranged between the substrates to form a multilayer structure and made...
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6879362 |
Cholesteric liquid crystal color filter and process for producing the same
The present invention provides a cholesteric liquid crystal color filter including partition walls that are formed at pixel boundaries, produced by: forming a liquid crystal layer comprising a...
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6856086 |
Hybrid display device
A display includes a front panel and a back panel with a light control material in between. One of the panels includes a rigid substrate, for example made of glass or rigid plastic. The other of...
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6852375 |
Preparation method of chiral nematic liquid crystal composition and liquid crystal display
The present invention is based on a chiral nematic liquid crystal composition which shows cholesteric liquid crystal phase and be able to reflect light in visible region selectively, comprising:
...
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6801263 |
Liquid crystal display, liquid crystal device and liquid crystal display system
A liquid crystal display apparatus is provided that includes a liquid crystal display device having two polarizing filter arranged on opposite sides of a light modulating unit. The liquid crystal...
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6781666 |
Liquid crystal display and method to manufacture the same
Disclosed is a liquid crystal display having stacked liquid crystal light modulation layers each containing a liquid crystal compound. At least one of the liquid crystal modulation layers is...
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6757039 |
Paper white cholesteric displays employing reflective elliptical polarizer
This invention relates to paper white cholesteric displays employing a reflective elliptical polarizer. In the reflective mode, the paper white ON state is achieved by a reflective elliptical...
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6753044 |
Coloring media having improved brightness and color characteristics
Disclosed are novel reflective microflakes for use in making “additive-primary” coloring media having improved reflection characteristics over the red, green and blue super-bright color...
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RE38500 |
Polarizer, optical element, lighting device and liquid crystal display
Disclosed are (1) a polarizer having a function of separating incident light into polarized light through reflection and transmission, which has (a) a haze of 10% or less, or (b) a ratio of...
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6693686 |
Polarizing element and optical display apparatus including the same
A polarizing element 20 includes a cholesteric layer 21 that selectively reflects either one of right-handed and left-handed circularly polarized components of incident light, and an absorptive...
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6674505 |
Light-modulating cell
A light-modulating cell and a display device based on a chiral nematic liquid crystal material in which the difference of optical rotation power between the planar nematic state and the focal conic...
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6674504 |
Single layer multi-state ultra-fast cholesteric liquid crystal device and the fabrication methods thereof
A device and method of manufacturing a single layer multi-state ultra-fast cholesteric liquid crystal includes two optically transparent states with a liquid crystal arranged therebetween, and...
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6669999 |
Method for broadening bandwidth of cholesteric liquid crystal
A method for making broadband cholesteric liquid crystals with improved bandwidth. The method includes the main steps of: (a) preparing a polymerization mixture containing first and second chiral...
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6630982 |
Color and intensity tunable liquid crystal device
A color tunable pixel ( 100 ) includes a cholesteric liquid crystal ( 110 ). The helical pitch of the cholesteric liquid crystal ( 110 ) is controlled by applying electrical fields ( 202, 302 ) of...
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6597426 |
Flat element with a cholesteric liquid crystal structure
Sheet-like structures obtainable by thermal curing and having a crosslinked cholesteric liquid crystalline ordered structure are suitable, for example, for decorative coatings, for producing...
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6573971 |
Bistable twisted nematic LCD without an initial twist angle of 180 degrees and not a multiple of 90 degrees
A bistable twisted nematic LCD cell is presented. The cell includes front and rear polarizes, substrates and a liquid crystal layer between the substrates. Rubbing directions are arranged to give...
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6549254 |
Bragg reflection optical device and methods for the manufacturing thereof
An optical device ( 20 ) is provided using at least one film ( 23 ) of cholesteric liquid crystal to reflect at least one predetermined wavelength band from an incident light. This device is...
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6537624 |
Liquid-crystal film
A light-diffusible liquid crystalline film having a fixed cholesteric or chiral smectic C orientation in which the helical axis direction is not uniformly parallel to the film thickness direction,...
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6466297 |
Method of preparing a broadband reflective polarizer
The invention relates to a method of preparing a broadband reflective polarizer comprising the blending a first mixture A comprising at least one achiral polymerizable mesogenic compound with a...
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