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Class 252/585 - Producing polarized light


Subclass of Class 252 - Compositions
Definition: Composition which polarize light passing therethrough.
No. of patents: 214
Last issue date: 10/23/2012


1            
NumberTitleIssue Date
8293146Optical film and phase difference plate, and liquid crystal compound
An optical film, which has been subjected to an orientation treatment, containing a low-molecular weight compound, in which a birefringence Δn(550 nm) is larger than zero (0) in an orientation direction, and the optical film satisfies the following expressions (1) ...
10/23/2012
8282864Water-resistant polarizing film, and process for producing the same
There is provided a water-resistant polarizing film including an organic dye having at least two anionic groups, and an alicyclic structure-containing compound having at least two nitrogen atoms in a molecule. Examples of the organic dye typically include an azo com...
10/09/2012
8282863High refractive index inorganic oxide nanoparticles comprising surface treatment, polymerizable resin, and articles
Microstructured films comprising surface modified inorganic oxide particles, surface modified inorganic nanoparticles having a high refractive index, and polymerizable resins are described. ...
10/09/2012
8168091Polyvinyl alcohol film composition, and polarizing plate employing the same
The invention provides a polyvinyl alcohol film composition including: (A) 100 parts by weight of polyvinyl alcohol; and (B) 0.001 to 30 parts by weight of a multi-hydroxyl polyhedral oligomeric silsesquioxane (POSS). The POSS is soluble in polar solvents, but insol...
05/01/2012
8077389Glass polarizer for visible light
A glass polarizer applicable to projection-type liquid crystal displays and the like and having an excellent transmittance and extinction ratio with respect to light in the visible light region (500 nm to 600 nm) using silver halide containing glass as a starting ma...
12/13/2011
7393570Broad-band-cholesteric liquid-crystal film, process for producing the same, circularly polarizing plate, linearly polarizing element, illiminator, and liquid-crystal display
A broad band cholesteric liquid crystal film of the present invention is a cholesteric liquid crystal film obtained by coating a liquid crystal mixture containing a polymerizable mesogen compound (a), a polymerizable chiral agent (b) and a photoisomerizable material...
07/01/2008
7311399Method of making a thermoplastic-based article and a thermoplastic-based article made thereby
An article, such as a lens article (10, 10′, 10″, 100) containing a first component, e.g., a filter (14, 14′), or component thereof, having a minimum degradation temperature, and a second component, e.g., a substrate (22, 22′), comprisin...
12/25/2007
7311952Liquid crystalline film with broadened reflection bandwidth and process for preparation thereof
Reflective liquid crystalline polymer films having increased bandwidth have a single layer of liquid crystalline material with short, long, and medium pitch of the helical molecular structure of the liquid crystalline polymer. The films are easily produced by a read...
12/25/2007
7304147Azo compound and salt thereof
The present invention relates to an azo compound represented by the following formula (1): wherein A denotes a phenyl group having 1 to 3 substituents such as sulfonic acid group, amino group, lower alkyl groups ...
12/04/2007
7282574Dichroic azo dyestuff and the polarizing film making from the same
The present invention relates to a azo dyestuff compound of the following formula (I), of which the free acid is represented by the following formula: wherein R1, R2, R3, R4
10/16/2007
7279060Guarded cover film for LCD polarizers
The invention generally relates to polymer films used as protective cover sheets for polarizer plates, a method for producing polarizing plates, and a Liquid Crystal Display employing the same. More particularly, the invention relates to cover sheet composites havin...
10/09/2007
7276268Poly-azo compound, and polarization film having said compound
Poly-azo compound selected from the group consisting compounds of the formula (I) and compounds of the formula (II), (wherein, Me represents copper, nickel, zinc or iron, A represents a naphthyl group having 1 to...
10/02/2007
7270857Liquid crystal composition and liquid crystal element
The present invention relates to a liquid crystal composition comprising a compound represented by the following formula (1) and a liquid crystal and a liquid crystal element containing the liquid crystal composition: ...
09/18/2007
7259913Faraday rotator for high output lasers
A Faraday rotator in which the isolation function based on a temperature rise is not deteriorated even when the Faraday rotator is used for a high output laser of not smaller than 1W output at a wavelength of not larger than 1.1 μm includes sapphire crystals or rut...
08/21/2007
7256746Molded component for beam path of radar apparatus
A molded component for the beam path of a radar apparatus with a low radio transmission loss and improved hardness and abrasion resistance is provided. The molded component for the beam path of a radar apparatus comprises a base body 21 composed of a cyclic p...
08/14/2007
7252733Polarizer guarded cover sheet with adhesion promoter
The invention generally relates to polymer films used as protective cover sheets for polarizer plates, a method for producing polarizing plates, and a Liquid Crystal Display employing the same. More particularly, the invention relates to a cover sheet composite havi...
08/07/2007
7251075Polarizers coated with optically functional layers
An optical stack includes an intrinsic polarizer, such as a K-type or thin KE polarizer sheet. Optically functional coatings are disposed on one or both of the surfaces of the intrinsic polarizer. The optically functional coatings include a hardcoat, a transflector ...
07/31/2007
7250201Production method of cellulose film, cellulose film, protective film for polarizing plate, optical functional film, polarizing plate, and liquid crystal display
A production method of cellulose film wherein cellulose film is produced by preparing a polymer solution through dissolving cellulose ester in a solvent containing a prescribed organic solvent as the main component, forming a filmy object from the prepared polymer s...
07/31/2007
7245431Reflective polarizer assembly
An assembly that includes a first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state, a polarization rotating layer or depolarizing layer (or both) positioned ...
07/17/2007
7236290Electrophoretic medium with improved stability
An electrophoretic medium comprises a liquid and at least one particle disposed within the liquid and capable of moving therethrough on application of an electric field to the medium. The medium further comprises a free radical scavenger selected from the group cons...
06/26/2007
7221510Method of producing polarizing film, polarizing film and image display device using the same
A process for producing a polarizing film including a step of stretching a raw film, wherein the ratio (L/W) of stretching distance (L) to width of initial raw film (W) is from 0.5 to 30. ...
05/22/2007
7218447Diamond-like carbon film and method for qualitatively transforming diamond-like carbon film
A diamond-like carbon (DLC) film having refractive indices distributed in a pattern oriented within the plane of the film or on a bias with respect to the thickness of the film. Such films may be useful in low-cast Faraday rotators, in polarizers (analyzers), and in...
05/15/2007
RE39605Combination of optical elements
The invention relates to a combination of optical elements comprising at least one optical retardation film and at least one broadband reflective polarizer, characterized in that the optical retardation film is comprising at least one layer of an anisotropic polymer...
05/01/2007
7209196Transparent protective film for polarizing plate, process for producing the same, polarizing plate, and optical film and liquid crystal display using polarizing plate
A transparent protective film for polarizing plate being provided via an adhesive layer on at least one surface of a polarizer, wherein a ratio of constituent elements (oxygen ratio/carbon ratio) on the polarizer-adhering surface of the transparent protective film f...
04/24/2007
7187424Combination of optical films comprising a twisted a-plate and a polarizer
The invention relates to a combination of optical films comprising a twisted A-plate retarder and a polarizer, its use in displays and optical elements, and to displays comprising such a combination. ...
03/06/2007
7179528Adhesive composition and adhesive optical component using the composition
An adhesive sheet including an adhesive composition disposed on at least one face of a film of acetyl cellulose, the adhesive sheet being produced by coating a solution of the adhesive composition on the face of the film and drying the solution to form a laminate, t...
02/20/2007
7170670Electrophoretic medium and display with improved image stability
An electrophoretic medium comprises a plurality of particles suspended in a suspending fluid, the particles being capable of moving through the fluid upon application of an electric field to the medium, the fluid having dissolved or dispersed therein a polymer havin...
01/30/2007
7163649Minimizing spatial-dispersion-induced birefringence
A composition formed from Group II fluorides in which the composition has little or no intrinsic birefringence at a selected wavelength. The composition is a mixed solid solution of CaF2 with a second crystal of SrF2 or BaF2. The res...
01/16/2007
7163723Liquid crystalline compound and reterdation difference film using the same
A phase difference film which comprises a liquid crystal film having a liquid crystal comprised of a cellulose derivative as a liquid crystal compound (cellulose derivative liquid crystal) being oriented in a specific direction, preferably said phase difference film...
01/16/2007
7160586Cholesteric liquid crystal copolymers and additives
A cholesteric liquid crystal composition includes a) a cholesteric liquid crystal compound or a cholesteric liquid crystal precursor; and b) a compound of formula (I), formula (II) or formula (III): where, n is 1...
01/09/2007
7153552Polarizing plate and display
A polarizing plate provided on a surface of a liquid crystal cell of a display, containing a polarizing element, Film A and Film B each provided on each of two surfaces of the polarizing element, wherein: (i) a surface of Film B has an adhesive layer which adheres t...
12/26/2006
7151515Apparatus and method for performing a mirror function in a portable terminal
Disclosed is an apparatus and method for embodying mirror function in a portable terminal by which a user can use an LCD of the portable terminal as a mirror, with a rear polarizer of the LCD constructed to allow the LCD to reflect incident light and to perform as a...
12/19/2006
7145709Apparatus and methods for modulating refractive index
An iono-refractive structure that includes one or more ion insertion layers having a real portion and an imaginary portion of the dielectric constant is provided. While both the real portion and the imaginary portion of the dielectric constant change, the change in ...
12/05/2006
7138187Polyvinyl alcohol-based film exhibiting improved adhesion
Modifications to the surface of polyvinyl alcohol-based films are disclosed that result in improved adhesion to optical materials. Specifically, the surface chemistry of the polyvinyl alcohol-based film is altered to include fluorine bonds, which surprisingly improv...
11/21/2006
7135589Bridged monomers
Liquid crystal monomers and secondary monomers useful to blend with liquid crystal monomers to maintain a nematic state under processing conditions while maintaining low cure shrinkage, particularly suitable for use in dental resin composites. ...
11/14/2006
7128953Optical film comprising support and polarizing layer
An optical film comprises a transparent support and a polarizing layer. The polarizing layer selectively transmits polarized light, and selectively reflects or scatters other polarized light. The polarizing layer contains a compound represented by the formula (I) of...
10/31/2006
7118795Process of producing optical element and optical element
A liquid crystal layer is formed on an alignment substrate 13 by the use of a photo-curing chiral nematic liquid crystal having cholesteric regularity, or the like, and liquid crystalline molecules in the liquid crystal layer are aligned by the alignment-regu...
10/10/2006
7108801Methods and blends for controlling rheology and transition temperature of liquid crystals
A method for producing a blend comprising randomly substituted mesogens comprising: providing one or more platform molecules have the following general structure: wherein at least one member selected from the gro...
09/19/2006
7108897Dye type polarizing plate
This invention relates to a polyvinyl alcohol type polarizing film or plate which comprises a water-soluble dye having the formula (1) in a free acid form or a copper complex salt thereof. The said polarizing plate has excellent polarizing performance capability and...
09/19/2006
7108286Antifalsification paper and other antifalsification items
The present invention describes security paper and security items in general containing at least one security element having at least one photoluminescent segment characterized by a linearly polarized photoluminescence and/or a linearly polarized absorption. The pre...
09/19/2006
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