Liquid crystal display device using uniaxial birefringent films for improving viewing angle
We claim: 1. A liquid crystal display device comprising a liquid crystal layer of a nematic liquid crystal having positive dielectric anisotropy and including a chiral material, said liquid crystal la... Read More
Inventors: Akatsuka, Minoru; Sohda, Yuji; Sawada, Kazutoshi;, Assignee: Asahi Glass Company Ltd. (Tokyo, JP) |
Liquid crystal polymer viewing angle compensator for liquid crystal display having its largest refractive index in the thickness direction
In one embodiment of the present invention, a viewing angle compensator for a liquid crystal display is provided which comprises a light transmitting substrate base and a film of a liquid crystalline ... Read More
Inventors: Mazaki, Hitoshi; Toyooka, Takehiro; Itoh, Hiroyuki;, Assignee: Nippon Oil Company, Limited (Tokyo, JP) |
Pixelated compensators for twisted nematic liquid crystal displays
A novel normally-white dual-domain twisted nematic liquid crystal display exhibits dramatically improved contrast and gray scale linearity stability over a wide range of viewing angles as compared to ... Read More
Inventors: Gunning, III, William J.; Winker, Bruce K.; Koch, Gene C.;, Assignee: |
Optical compensatory sheet
It is an object of the invention to provide an optical compensatory sheet which has an excellent durability, gives an enlarged viewing angle, and can be easily prepared. It is another object of the in... Read More
Inventors: Ito, Yoji;, Assignee: Fuji Photo Film Co., Ltd. (Minami-ashigara, JP) |
Film containing oriented dye, method of manufacturing the same, and polarizer and liquid crystal display unit utilizing the same
It has now been found that through the use of fluororesin orientation films such as PTFE orientation films, one can achieve highly oriented dichroic dyes. The present invention concerns these oriented... Read More
Inventors: Andreatta, Alejandro; Doi, Shuji;, Assignee: Sumitomo Chemical Company (Osaka, JP) |
Patterned polarization-rotating optical element and method of making the same, and 3D display
What is claimed is: 1. A patterned polarization-rotating optical element comprising a layer of birefringent material having a thickness d and a birefringence .DELTA.n, wherein the layer comprises at l... Read More
Inventors: Gillian, Margaret Davis; Tillin, Martin David;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Anisotropic retardation layers for display devices
The present invention is an optically anisotropic layer which may be applied on an isotropic or anisotropic supporting substrate to provide a birefringent optical retardation device. The anisotropic l... Read More
Inventors: Sahouani, Hassan; Vogel, Kim Marie;, Assignee: 3M Innovative Properties Company (St. Paul, MN) |
Liquid crystal display device
The present invention is made to solve the above-mentioned disadvantages and a first object of the present invention is to provide a liquid crystal display device which has a good viewing angle charac... Read More
Inventors: Kaneko, Yasushi;, Assignee: Citizen Watch Co., Ltd. (Tokyo, JP) |
Optical bodies made with a birefringent polymer
Generally, the present invention relates to optical bodies and their manufacture, as well as the use of the optical bodies in optical devices, such as polarizers and mirrors. One embodiment is a multi... Read More
Inventors: Hebrink, Timothy J.; Condo, Peter D.; Merrill, William W.;, Assignee: 3M Innovative Properties Company (St. Paul, MN) |
Black light instrument cluster assembly
The present invention provides alternatives and advantages over the prior art by providing an instrument cluster assembly that is easy to read, lightweight, less costly, less bulky, and has fewer comp... Read More
Inventors: Stringfellow, Steven Allen; Kalajian, Peter L.;, Assignee: General Motors Corporation (Detroit, MI) |
Digital convergence image
FIG. 1 illustrates an exemplary display screen 101 of a video signal display apparatus employing convergence alignment by means of photo sensors located at the screen periphery. The display screen 10... Read More
Inventors: George, John Barrett;, Assignee: Thomson Licensing SA (Boulogne Cedex, FR) |
Polyimide film from pyromellitic dianhydride and a bis (4-aminophenoxy) aromatic compound as an alignment layer for liquid crystal displays
OF THE INVENTION The polyimide used as an alignment film in the liquid crystal display device of the present invention is a polycondensation-imidization reaction product of an aromatic tetracarboxyli... Read More
Inventors: Auman, Brian Carl; Bohm, Edgar;, Assignee: E. I. duPont de Nemours and Company (Wilmington, DE); Merck Patent GmbH (Darmstadt, DE) |
Method of and apparatus for recording image
It is a general object of the present invention to provide a method of and an apparatus for thermally recording an image, characters, or the like on a heat sensitive recording material of the type des... Read More
Inventors: Kishimi, Kazutomo;, Assignee: Fuji Photo Film Co., Ltd. (Kanagawa, JP) |
Method and apparatus for maintaining constant drop size mass in thermal ink jet printers
It is the object of the present invention to provide an improved thermal ink jet printer which maintains a substantially constant spot size in ink droplets ejected from the printhead while printing. I... Read More
Inventors: Stephany, Joseph F.;, Assignee: Xerox Corporation (Stamford, CT) |
Optical probe and method for the three-dimensional surveying of teeth
The present invention is directed to an optical three-dimensional measuring probe for the surveying of the three-dimensional geometry of teeth in the oral cavity of a patient. The measuring probe incl... Read More
Inventors: Massen, Robert; Gassler, Joachim;, Assignee: Kaltenbach & Voight GmbH & Co. (DE) |
Liquid crystal display device and method for driving the same
One aspect of the present invention relates to a ferroelectric liquid crystal display device comprising a plurality of pixels, each including ferroelectric liquid crystal material having ferroelectric... Read More
Inventors: Numao, Takaji; Tagawa, Akira; Tamai, Kazuhiko; Koden, Mitsuhiro; Shinomiya, Tokihiko;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Selective call receiver having a display module with integrated circuits and method therefor
What is claimed is: 1. A method, comprising: adding at least one layer of substrate material to a backside of a display module; removing a portion of the at least one layer of substrate material to ex... Read More
Inventors: Joslin, Scott; Hendricks, Douglas Wayne; Juskey, Frank;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Semi-transmissive LCD device including an optical film having negative uniaxial double refractive index ellipsoids
With respect to angles of respective optical axes in the above-mentioned conventional semi-transmissive type liquid crystal display device, viewing angles are narrow and the intensities of the transmi... Read More
Inventors: Fukuda, Koichi; Nakamura, Yoshiaki;, Assignee: Hitachi Displays, Ltd. (Chiba-ken, JP) |
Method and apparatus for providing security features in paper
Security devices are incorporated in the paper during the paper-making process by using a carrier web to support the security device during the paper formation on the paper machine. Said carrier web i... Read More
Inventors: Crane, Jr., Frederick G.;, Assignee: Crane and Company (Dalton, MA) |
Security paper
A security paper having optically variable devices is manufactured on a conventional Fourdrenier paper making machine having unique modifications. These modifications allow the devices, secured on the... Read More
Inventors: Crane, Timothy T.;, Assignee: Crane & Co. (Dalton, MA) |
Security paper for currency and banknotes
The invention comprises the encoding of printed information onto a strip of clear plastic film which is later incorporated within the paper during the papermaking process. The printed information can ... Read More
Inventors: Crane, Timothy T.;, Assignee: Crane & Co. (Dalton, MA) |
Optical sources having a strongly scattering gain medium providing laser-like action
OF THE INVENTION In order to describe in detail a number of novel embodiments of this invention, a description is first made of experimental results which clearly illustrate the novel properties of a... Read More
Inventors: Lawandy, Nabil M.;, Assignee: Brown University Research Foundation (Providence, RI) |
Security threads having at least two security detection features and security papers employing same
The present invention therefore provides a security thread, suitable for at least partial incorporation in and/or for mounting on a security document or means of identification, such as a label. The p... Read More
Inventors: Crane, Timothy T.;, Assignee: Crane & Co., Inc. (Dalton, MA) |
Reversibly photochromic printing inks
OF THE INVENTION In the following description, abbreviations will be used for the sake of shortness. "Photochromic" or "photodye" means a photochromic compound. "Photodye-stuff" means an organic pigm... Read More
Inventors: Amon, Albert; Bretler, Haim; Bleikolm, Anton;, Assignee: Sicipa Holding S.A. (CH) |
Liquid crystal display device, method for producing the same, and projection-type display apparatus including the liquid crystal display device
According to one aspect of the invention, a liquid crystal display device includes a pair of substrates; a liquid crystal layer interposed between the pair of substrates; and an electrode for applying... Read More
Inventors: Nakao, Kenji; Yamamoto, Masao; Uemura, Tsuyoshi;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Electro-optic apparatus, electronic apparatus therewith, and manufacturing method therefor
In view of the above-mentioned problems, it is an object of the present invention, in an electro-optical apparatus such as a liquid crystal apparatus having a structure in which a UV-ray shielding mem... Read More
Inventors: Makino, Naoki;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Tamper-indicating sheet
What is claimed is: 1. A blush coating composition comprising a mass of light-scattering, primary resin particles which are adapted to coalesce to a more compact coating (a) on application of heat the... Read More
Inventors: McCorkle, James L.;, Assignee: Ludlow Corporation (Needham Heights, MA) |
Optically variable and machine-readable device for use on security documents
The present invention meets that need by providing an optically variable device for use on security documents which is inexpensive to produce and deters unauthorized reproduction by the use of a conce... Read More
Inventors: Mowry, Jr., William H.; Castle, William J.; Neitman, Robert L.;, Assignee: The Standard Register Company (Dayton, OH) |
Field emission electron gun
It is therefore an object of the invention to provide a field emission electron gun capable of generating a stable electron beam for a long period of time. A further object of this invention is to pro... Read More
Inventors: Sakitani, Yoshio;, Assignee: Hitachi, Ltd. (JA) |
Liquid crystal information storage and retrieval system
In accordance with the illustrated preferred embodiments, the present invention provides an optical, erasable, liquid crystal information storage and retrieval system. The system includes two substrat... Read More
Inventors: Kahn, Frederic J.; Birecki, Henryk; Burmeister, Robert A.;, Assignee: Hewlett-Packard Company (Palo Alto, CA) |
LCD 
