William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7327424 | Nematic liquid crystal display device with multi-domain pixels and six phase difference compensators Featured is a liquid crystal display device including first and second transparent substrates and a liquid crystal layer interposed there between that includes a plurality of domains in each pixel region. Also included are first and second polarizing plates and firs... | 02/05/2008 |
| 7322700 | Image display apparatus An image display apparatus includes an indicating element which modulates or emits light as a pixel in accordance with image information. A displacement unit optically displaces a position of the pixel for each of two or more sub-fields constituting an image field c... | 01/29/2008 |
| 7292519 | Optical head with lasers and mirrors in a recess formed in a substrate An integrated optical head records and reproduces information to and from optical discs of different types, including CD and DVD, with use of a single information recording/reproducing apparatus. The optical head has a plurality of semiconductor lasers of different ... | 11/06/2007 |
| 7274418 | Method and system for improving the contrast of LCDs using circular polarization A display device displays images with reduced glare from external incident light. The device includes a back light located on a bottom surface of the display device to provide internal light. Moreover, the device includes an internal circular X-polarizer located ext... | 09/25/2007 |
| 7260286 | Optical fiber coupling having liquid crystal adaptive coupler An optical fiber coupling, for example, an optical switch, for coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face o... | 08/21/2007 |
| 7151870 | Apparatus for optically coupling a light source with an optical waveguide An optical fiber coupling, for example, an optical switch, for coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face o... | 12/19/2006 |
| 7125121 | Image display apparatus An image display apparatus includes an indicating element which modulates or emits light as a pixel in accordance with image information. A displacement unit optically displaces a position of the pixel for each of two or more sub-fields constituting an image field c... | 10/24/2006 |
| 7123320 | Electro-optical device A liquid crystal electro-optical device comprising a pair of substrates at least one of them is light-transmitting, electrodes being provided on said substrates, and an electro-optical modulating layer being supported by said pair of substrates, provided that said e... | 10/17/2006 |
| 7116378 | Color-balanced brightness enhancement for display systems A technique for providing a desired level of color balance in field sequential color systems with brightness enhancement. In color wheels having a spectrally-broad transmissive segment, the spectrally-broad segment has a transmittance that is selected to provide a d... | 10/03/2006 |
| 7095478 | Liquid crystal display device and method for fabricating thereof To provide a technology for fabricating a high image quality liquid crystal display device, a set range of a cell gap for holding a liquid crystal layer is limited in accordance with a distance of a pixel pitch in which specifically, the cell gap is set to be a dist... | 08/22/2006 |
| 7093989 | Printer comprising two uneven printhead modules and at least two printer controllers, one which spends print data to the other A printer having of a printhead having first and second elongate printhead modules, the printhead modules being parallel to each other and being disposed end to end on either side of a join region, wherein the first printhead module is longer than the second printhe... | 08/22/2006 |
| 7084949 | Apparatus for arranging spacers at fixed points, liquid crystal device, method of manufacturing liquid crystal device, and electronic apparatus An apparatus is provided to arrange spacers at fixed points, a liquid crystal device, a method of manufacturing the liquid crystal device, and an electronic apparatus with the liquid crystal device. It is an object to precisely arrange spacers without using a highly... | 08/01/2006 |
| 7067795 | Methods and systems for dynamic control of polarization of an optical signal Techniques and systems for dynamically controlling polarization of an optical signal by using various feedback controls, and by combining both feed-forward and feedback controls. Various dynamic control algorithms for such systems and other optical systems have been... | 06/27/2006 |
| 7046221 | Increasing brightness in field-sequential color displays A display system includes a display panel having an array of pixels, the pixels having ON states and OFF states. The pixels form images by modulating light in a temporal sequence during an image frame in response to drive signals generated from incoming video data. ... | 05/16/2006 |
| 7046420 | MEM micro-structures and methods of making the same A device comprising an array of free metal ribbons that are coupled to a substrate through ceramic support structures is disclosed. The device is preferably an optical MEM device, wherein a first set of free metal ribbons are configured to move relative to a second ... | 05/16/2006 |
| 7042611 | Pre-deflected bias ribbons A modulator for and a method of modulating an incident beam of light including means for supporting a plurality of active elements and a plurality of bias elements, each active and bias element including a light reflective planar surface with the light reflective pl... | 05/09/2006 |
| 7029727 | Patterned substrate and liquid crystal display provided therewith A thin film transistor (TFT) is formed on an insulating substrate, and a photosensitive resin film as an interlayer insulating film is formed so as to cover the TFT. Contact holes are formed in the photosensitive resin, and smooth concave and convex portions are pro... | 04/18/2006 |
| 7018838 | Substrates, devices, and methods for cellular assays The present invention relates to the field of molecular diagnostics, and in particular to diagnostics based on a liquid crystal assay format. In particular, the present invention provided improved substrates and methods of using liquid crystal assays for quantitatin... | 03/28/2006 |
| 6943784 | Control circuit of panel brightness A control circuit of panel brightness is disclosed. After a user adjusts a brightness volume control, the brightness volume control will output an adjusting signal. The control circuit of this invention includes a pre-stage circuit, a first brightness control circui... | 09/13/2005 |
| 6927891 | Tilt-able grating plane for improved crosstalk in 1×N blaze switches A light modulator includes elongated elements arranged parallel to each other. Each elongated element includes a light reflective planar surface with the light reflective planar surfaces configured in a first grating plane. A support structure is coupled to the elon... | 08/09/2005 |
| 6906764 | Reflective cholesteric filter A polarized light extraction optical element is formed by a light-transmitting base material and a polarization separation layer laminated thereonto, this polarization separation layer being a liquid crystal layer made of a cholesteric liquid crystal. The thickness ... | 06/14/2005 |
| 6568781 | Inkjet recording apparatus including remaining amount of ink detecting function and remaining amount of ink detecting method The present invention provides an inkjet recording apparatus and a method of detecting a remaining amount of ink capable of detecting an amount of ink remaining in an ink tank without the need of a special mechanism and part in an inkjet recording apparat... | 05/27/2003 |
| 6300926 | Active matrix type liquid crystal display There is provided an active matrix type liquid crystal display, which hardly generates display unevenness incident to electrode dimensional fluctuation caused by variations resulting from the electrode formation process, and which is excellent in mass pro... | 10/09/2001 |
| 6100944 | Polarizing interferometer using multiorder and zero order birefringence switches The present invention provides a polarizing interferometer multiplex spectrometer using a zero-order switch, a multi-order switch and an output polarizer to multiplex the recovery of an entire input spectrum. The zero-order switch and multi-order switch r... | 08/08/2000 |
| 6091462 | Split-element liquid crystal tunable optical filter This invention provides split-element liquid crystal polarization interference filters in wide-field, bandpass, cut-on, cut-off and notch filter embodiments. The split-element filters of this invention comprise a polarization interference stage defined by... | 07/18/2000 |
| 6084058 | Composition for liquid crystal aligning film, liquid crystal aligning film, liquid crystal displays and liquid crystal display element A composition for a polyimide type liquid crystal aligning film characterized in that a diamino compound constituting polyimide contains one, two or more diamine selected from 4,4'-diaminodiphenyl methane, 3,3'-dimethyl-4,4'-diaminodiphenyl methane, ... | 07/04/2000 |
| 5910271 | Active matrix type liquid crystal display apparatus A liquid crystal display apparatus, having a designated drive composed of a group of electrodes forming pixels in a n×m matrix and active devices, in which the electrodes have a structure such that an electric field parallel to the interface can be appli... | 06/08/1999 |
| 5877825 | Method and device including electro-optical shutter for protection from pulsed radiation A method and a safety device for the protection of a user's eye, or other radiation sensitive system, from a pulsed radiation emitted by a radiation source by means of an electro-optical shutter used in conjunction with the radiation source. The electro-o... | 03/02/1999 |
| 5821559 | Electric device, matrix device, electro-optical display device, and semiconductor memory having thin-film transistors A circuit adapted to dynamically activate an electro-optical display device is constructed from a thin-film gate-insulated semiconductor device. This device comprises PMOS TFTs producing only a small amount of leakage current. Besides the dynamic circuit,... | 10/13/1998 |
| 5793459 | Liquid crystal display of horizontal field type A liquid crystal display element has: a pair of substrates facing each other; a liquid crystal layer sandwiched between the pair of substrates; a unit for applying an electric field to the liquid crystal layer, the electric field being substantially paral... | 08/11/1998 |
| 5712652 | Liquid crystal display device A liquid crystal display device of low power consumption is disclosed, which is suitable for use with a portable data processing apparatus, in particular. The liquid crystal display device, comprises: a switch element array substrate (301) having a plural... | 01/27/1998 |
| 5617228 | Polymer-dispersed liquid crystal display device and method to set liquid crystal layer thickness in association with driving voltage When two substrates for a polymer-dispersed liquid crystal display panel are joined with a polymer-dispersed liquid crystal layer therebetween, a substrate supporting stage of a substrate joining machine is controlled to keep the uniformity in the screen ... | 04/01/1997 |
| 5600464 | Liquid crystal display device having the electric field parallel to the substrates The liquid crystal display device having electrodes which form picture elements matrix and generate an electric field substantially parallel to a substrate is composed of so as to have a brightness recovering time of no greater than five minutes, wherein ... | 02/04/1997 |
| 5594565 | Programmable liquid crystal wavefront device A programmable liquid crystal optical wavefront device selectively exhibits characteristics either as a lens or as a beam deflector; the device includes a liquid crystal (LC) control apparatus that is disposed in an LC cell to selectively deflect light be... | 01/14/1997 |
| 5594713 | Optical pickup head apparatus An optical pickup head apparatus comprising: a light source; an imaging optics for receiving a linearly polarized light beam emitted from the light source, and converges it on a small spot on an information medium; photodetector units for receiving the li... | 01/14/1997 |
| 5543945 | Method of driving an LCD employing combining two voltages which change polarity at different times in a frame The present invention discloses a method of operating an active matrix liquid crystal display device having a liquid crystal layer between a pair of substrates and at least one active device to each of picture element electrodes on at least one of the sub... | 08/06/1996 |
| 5444559 | Method and apparatus for controlling optical characteristics of a programmable surface medium An electromagnetic radiation control device is proposed using visually transparent computers and associated components to control the device's optical memory and the characteristics of its active optical component all contained within a capsule. The inven... | 08/22/1995 |
| 5061041 | Liquid crystal motion picture projector with memory A liquid crystal moving picture projector (1) includes a liquid crystal imager (2) for creating characteristics of an image, and projection optics (3) for projecting images sequentially created by the imager, the imager including a liquid crystal material... | 10/29/1991 |
| 4846560 | Liquid crystal device with ferroelectric liquid crystal oriented at non-pixel portions The specification and the drawing discloses a liquid crystal device for use as a liquid crystal display device, a liquid crystal-optical shutter, etc., having a matrix cell structure having scanning electrodes and signal electrodes intersecting with each ... | 07/11/1989 |
| 4810058 | Exposure device utilizing a liquid crystal shutter matrix An exposure device for forming an image on a photosensitive member is disclosed, which is provided with a shutter unit disposed between the photosensitive member and a light source. The shutter unit includes a plurality of shutter elements adapted to open... | 03/07/1989 |