...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7236663 | Display element and display device using the same A display element is provided with a light source and a waveguide that propagates a light emitted from the light source, wherein the light propagated in the waveguide is extracted to outside from a waveguide lateral face, and wherein the light is extracted out of th... | 06/26/2007 |
| 7141279 | Transmissive or reflective liquid crystal display and novel process for its manufacture This invention relates to a liquid crystal display with improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity, and methods for its manufacture. ... | 11/28/2006 |
| 7079302 | Electrophoretic device, having an opening An electrophoretic display device 20 of the present invention is formed of a first substrate 1, a second substrate 2, and microcapsules which are accommodated between these substrates and which contain an electrophoretic dispersion 10, wh... | 07/18/2006 |
| 7072095 | Electrophoretic display and novel process for its manufacture This invention relates to an electrophoretic display with improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity, and methods for its manufacture. ... | 07/04/2006 |
| 7050218 | Electrophoretic dispersion, electrophoretic display device, method of manufacturing electrophoretic display device, and electronic system To provide an electrophoretic dispersion capable of reducing or preventing the aggregation of electrophoretic particles, an electrophoretic display device using the electrophoretic dispersion, a method of manufacturing the electrophoretic display device, and an elec... | 05/23/2006 |
| 7023420 | Electronic display with photo-addressing means An electronic display comprises an electro-optic material (preferably an electrophoretic medium) having a plurality of pixels, and separate first, second and third sets of addressing means for addressing these pixels. Each of the pixels is associated with one addres... | 04/04/2006 |
| 7002728 | Electrophoretic particles, and processes for the production thereof Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating. ... | 02/21/2006 |
| 6952305 | Electrophoretic display An electrophoretic display includes a first substrate and a second substrate disposed opposite to the first substrate, insulating liquid disposed between the first and second substrates, electrophoretic particles dispersed in the insulating liquid, a partition wall ... | 10/04/2005 |
| 6937217 | Display device and method of displaying an image A method of displaying an image, wherein a first density of image pixels, each comprising a sub-pixel is displayed on a display having a second density of display pixels. Each display pixel has at least two spatially offset display sub-pixels. The display sub-pixels... | 08/30/2005 |
| 6930818 | Electrophoretic display and novel process for its manufacture This invention relates to an electrophoretic display comprising cells of well-defined shape, size and aspect ratio which cells are filled with charged pigment particles dispersed in a solvent, and novel processes for its manufacture. ... | 08/16/2005 |
| 6008868 | Luminance weighted discrete level display The construction of display devices often involves the replication of a single pixel design a large number of times. Full color display devices are often constructed on the principle of utilising multiple primary colors in order to form a final destinatio... | 12/28/1999 |
| 5694180 | Projection system for projecting a color video picture and transformation optical system for same In a projection system for projecting a video picture composed of picture points on a screen with at least one light source which emits a light bundle and can be varied in intensity and with a deflecting device which deflects the light bundle to illuminat... | 12/02/1997 |
| 5694183 | Plasma addressed liquid crystal display panel with internal polarizer A plasma addressed liquid crystal display panel comprises a channel substrate having plasma channels in its upper surface thereof and an upper substrate over the upper surface of the channel substrate. A first polarizer is disposed over the upper surface ... | 12/02/1997 |
| 5257018 | Display device A jumbo-size picture display device arranged such that a number of red, green and blue fluorescent trios are formed in an X-Y matrix form. A shading material for controlling the color temperature is formed above predetermined red, green and blue fluoresce... | 10/26/1993 |
| 5153574 | Interface for a thin display An interface for a thin display panel having timing circuit for taking a timing so as to introduce effective color display data into RAMs according to synchronizing signal, RAMs for storing said effective color display data, color data treating circuit fo... | 10/06/1992 |
| 5068740 | Modular flat-screen television displays and modules and circuit drives therefor A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array th... | 11/26/1991 |
| 5067021 | Modular flat-screen television displays and modules and circuit drives therefor A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array th... | 11/19/1991 |
| 5010411 | Video display system A video display device comprising a display panel which has a large number of luminescent display cells arranged in an X-Y matrix and with a common drive circuit for applying an input video signal which substantially reduces the number of drive circuits b... | 04/23/1991 |
| 4982273 | Modular flat-screen color television displays and modules and circuit drives therefor A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the ar... | 01/01/1991 |
| 4982275 | Modular flat-screen color television displays and modules and circuit drives therefor A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the ar... | 01/01/1991 |
| 4982272 | Modular flat-screen color television displays and modules and circuit drives therefor A modular flat-screen color television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the ar... | 01/01/1991 |
| 4980774 | Modular flat-screen television displays and modules and circuit drives therefor A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array th... | 12/25/1990 |
| 4980775 | Modular flat-screen television displays and modules and circuit drives therefor A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array th... | 12/25/1990 |
| 4855724 | Color filter grouping for addressing matrixed display devices A matrixed display device comprises a plurality of monochrome optical bodies arranged in a matrix of intersecting horizontal rows and vertical columns and an optical bandpass filter element associated with each such body. The filter elements are in first,... | 08/08/1989 |
| 4833542 | Large screen display apparatus having modular structure A large screen display apparatus comprising a display unit composed of a plurality of modules and a housing accommodating the display unit. Each of the modules includes a plurality of units arranged in a matrix form, a power source and a control unit. Fur... | 05/23/1989 |
| 4772940 | Polymer having isothianaphthene structure and electrochromic display An electrochromic display device is provided in which a high molecular weight conductive membrane is formed on a conductive, transparent base, and an opposing electrode is arranged thereunder via a liquid electrolyte. The conductive, electrochromic membra... | 09/20/1988 |
| 4723119 | Large-sized color display device A display device is disclosed which is capable of providing display image of high quality and resolution without flickering of picture cells and black lines on the image. The display device includes a reflector having a plurality of reflecting openings fo... | 02/02/1988 |
| 4719385 | Multi-colored thin-film electroluminescent display A novel TFEL structure for providing a reliable, high performance multi-colored matrix-addressable flat screen display. The structure comprises a multi-layered panel consisting of two or more TFEL subpanels stacked one on top of the other, with each subpa... | 01/12/1988 |
| 4686575 | Very large color video matrix display apparatus with constant-current display cells driven by pulse-width-modulated video signals A video display system is disclosed, which includes a display device including a plurality of luminescent display cells arranged in an X-Y matrix form, each of the display cells having a cathode, a grid and a luminescent target electrode, a video signal s... | 08/11/1987 |
| 4683491 | Display system comprising a plurality of display cells arranged in an X-Y matrix and a plurality of horizontal-extending blinds disposed adjacent the upper edges of the display cells in the rows of the matrix A large-scale color picture display system comprises a plurality of fluorescent display cells arranged in an X-Y matrix to form a picture display device. Each display cell comprises a red, a green, and a blue fluorescent display element. Each of the displ... | 07/28/1987 |
| 4682239 | Very large video display apparatus which can be constructed of a number of modular units A video display system is disclosed which has a video signal source for supplying the video signal of odd fields and even fields which are interlaced with each other, a first set of display cells for the odd fields, a second set of display for the even fi... | 07/21/1987 |
| 4652912 | Matrix-type color picture display apparatus with four-element unit displaying picture elements each being divided into at least two unit driving picture elements A system of signal application to color picture elements of a color display apparatus of the matrix-drive type in which a unit displaying picture element is formed of one red, one blue and two green picture elements and drive signals are applied to unit d... | 03/24/1987 |
| 4626899 | Beam scanning device producing a horizontally uniform electron beam A flat cathode-ray tube wherein a horizontally uniform sheet-like electron beam is vertically deflected and modulated with a video signal, with the modulated electron beam irradiating a portion of a phosphor screen, includes a modulation electrode assembl... | 12/02/1986 |
| 4233623 | Television display A television display system is described in which a full resolution, interlaced scanned display of real-time images is provided on a gas discharge display panel. Real time scanning of the display panel in synchronism with the received television video sig... | 11/11/1980 |
| 4194215 | Method and apparatus for displaying a video picture on a matrix of light emitting elements A method and apparatus for displaying a video picture on a matrix array of light emitting elements form of m rows and n columns of such elements. The video signal, which is comprised of periodic vertical intervals, each containing successive line interval... | 03/18/1980 |
| 4170772 | Flat panel display with full color capability A color capability flat panel display comprised of the combination of two mi-independent linear displays. One of the displays is an active light emitting linear display and the other display is a passive light modulating linear display wherein both of the... | 10/09/1979 |
| 4086514 | Variable color display device A variable color display device comprising a plurality of display areas arranged in a pattern. Each display area includes a plurality of light emitting areas for emitting light signals of respectively different colors. Each light emitting area has a plura... | 04/25/1978 |
| 4031541 | Color video display system A color video display system employing a flat panel of X-Y matrix type for displaying color pictures thereon and a signal sampling means for sampling input color signals such that sampling phases for different color component signals are sequentially shif... | 06/21/1977 |
| 4005402 | Flat panel display apparatus A flat gas discharge panel comprising two opposed glass plates sealed with a space for gas therebetween and having a plurality of first and second electrodes, respectively mounted on opposite plates in a matrix fashion and further including a plurality of... | 01/25/1977 |
| 3961365 | Color display device A large display system capable of displaying a color video image receives video signals, quantizes those signals to produce a digital code capable of representing variations in the light content of the image and processes the digital code so as to control... | 06/01/1976 |