Bizarre Patents
A Christmas stocking having illumination means associated therewith for signalling the arrival of Santa Claus.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5048949 | Liquid crystal projector A liquid crystal projector includes a liquid crystal panel, a light source for illuminating the liquid crystal panel, a back-projection type screen having on its surface a lenticular lens in which many vertical or horizontal stripe lenses are arranged in ... | 09/17/1991 |
| 5048931 | Liquid crystal display projection system having improved contrast For enhancing the contrast of a picture on a projection scrren derived from a liquid crystal display, the analyzer, which is normally part of the liquid display unit, is incorporated either in front of or in back of the screen relative to the viewing area... | 09/17/1991 |
| 5032021 | Liquid crystal projector A liquid crystal display unit comprising a condenser lens, incident-side polarizing plate, liquid crystal panel and emanating-side polarizing plate is disposed in an optical path from a light source toward a projection lens. A cooler comprising a closed f... | 07/16/1991 |
| 5024524 | Reflective image plane module A reflective image plane module including light directing and reflecting structures and a wafer based active matrix mated thereto. A source of light is directed to the reflective image plane module wherein the wafer based active matrix imparts or encodes ... | 06/18/1991 |
| 5014326 | Projected image linewidth correction apparatus and method An apparatus for correcting deviations in image linewidth in a image projection system having a laser and a liquid crystal cell wherein images are made on the liquid cyrstal cell by impinging the laser on said cell. The apparatus also has apparatus for cr... | 05/07/1991 |
| 5012274 | Active matrix LCD image projection system An active matrix LCD light valve between crossed polarizers, utilizing individual transistors to control each "pixel area" of the LCD and storage elements to store signal data for each pixel, with optically shielded "dead spaces" between pixels to elimina... | 04/30/1991 |
| 5005950 | Giant liquid crystal display means Giant liquid crystal display means. The means comprises projection modules (MP) associated with mirrors (M1, M2) and a large screen (E). The screen carries colored filters (R, G, B) and the liquid crystal displays are monochromatic. Application to the pro... | 04/09/1991 |
| 4963001 | Liquid crystal display device A liquid crystal display device is used in a projector for projecting an image on a liquid crystal display panel onto a screen. The display device has a housing having a panel housing portion and a control circuit housing portion. The liquid crystal displ... | 10/16/1990 |
| 4943155 | Color projection system with a color correction wedge An embedded polarizing beamsplitter employed in a liquid crystal light valve color projector introduces lateral chromatic aberration of complex distribution that degrades contrast and resolution of the projected image. Color correction is provided to subs... | 07/24/1990 |
| 4917465 | Color display system A preferred display system is formed by stacking three STN birefringent LCD panels that are tuned to different subtractive primary colors (i.e. yellow, cyan and magenta). Interposed between the panels, and sandwiched about the stack, are polarizers. At le... | 04/17/1990 |
| 4911535 | Rear screen projection with twisted nematic crystals for improved viewing angle The disclosure relates to a light source positioned behind a liquid crystal display, the output from the liquid crystal being projected onto a projection screen that has random polarization, thereby permitting a wide range of vision. The screen can be a p... | 03/27/1990 |
| 4838655 | Projector using guest-host liquid crystal cells for improved color purity The disclosure relates to a projector having an arrangement of polarizers and liquid crystal cells aligned on the axis of light in the order a first color polarizer colored in red, a first twisted nematic liquid crystal cell, a second twisted nematic liqu... | 06/13/1989 |
| 4824210 | Liquid crystal projector A liquid crystal projector is disclosed, which comprises a light source, a TV type liquid crystal display panel and a projecting lens system. The liquid crystal display panel faces the screen and is inclined with respect to a line perpendicular to an opti... | 04/25/1989 |
| 4810064 | Liquid crystal projection display having laser intensity varied according to beam change-of-axis speed The liquid crystal is written with a laser beam. The laser beam generated by a laser source is applied through an optical control unit such as galvanometer mirrors to the liquid crystal. The intensity of the laser beam applied to the liquid crystal is con... | 03/07/1989 |
| 4772098 | Liquid crystal projector with cooling system A liquid crystal display device for enlarging and projecting an image displayed on a transmission liquid crystal display panel through a projecting lens onto a screen by radiating a light from a light source to the panel, has a heat pipe inserted into a t... | 09/20/1988 |
| 4722593 | Liquid-crystal projector with light beam reduction lens array for improved brightness of image outer portions A liquid-crystal projector reduces outer portions of a light beam corresponding to a projection image from a liquid-crystal display panel illuminated with light from a light source by a light beam width reduction lens array in order to increase the lumina... | 02/02/1988 |
| 4715683 | Modified liquid crystal television as a spatial light modulator The spatial light modulator utilizes a modified liquid crystal television for modulating a laser beam so as to produce a transformed hologram image on a film plate which is identical with the video information being fed into the liquid crystal TV. Once a ... | 12/29/1987 |
| 4699498 | Image projector with liquid crystal light shutter In an improved image projector with liquid crystal light shutter, a layer of ferroelectric liquid crystals contained in a liquid crystal light shutter at which the light modulated linearly in accordance with image signals is produced is of the thickness o... | 10/13/1987 |
| 4692779 | Image forming method and apparatus therefor A liquid crystal, particularly a ferroelectric liquid crystal, is interposed between an electroconductive member and an electric charge accepting member to form a liquid crystal device. In the first step of image formation, a uniform polarity of charge is... | 09/08/1987 |
| 4639722 | Liquid crystal display apparatus This invention relates to a liquid crystal display apparatus and particularly to a liquid crystal display apparatus based on a liquid crystal light emitter actuated by the heat from a laser beam. A liquid crystal display apparatus according to this invention i... | 01/27/1987 |
| 4623219 | Real-time high-resolution 3-D large-screen display using laser-activated liquid crystal light valves A number of viewers wearing polarized glasses are presented real-time, hiresolution, three-dimensional projected images on a distant screen at video image signal rates. Two laser raster scanners each activate a separate one of two liquid crystal light va... | 11/18/1986 |
| 4620791 | Light processor A light processor applied to the modulation of colored light, formed of a color modulated light source, includes a longitudinal modular box forming a frame and a support for the components of the source, the box being formed with windows for the passage o... | 11/04/1986 |
| 4613207 | Liquid crystal projector and method A liquid crystal image forming projector includes a liquid crystal display selectively operable for affecting light incident thereon, and an optical device for selectively projecting light affected or not affected by the liquid crystal display. The liquid... | 09/23/1986 |
| 4595260 | Liquid crystal projection display with even temperature elevation A liquid crystal projection display apparatus is disclosed. The display apparatus includes a thermally addressed liquid crystal light valve including in the following order a transparent substrate, a first transparent conductive layer, a light absorbing l... | 06/17/1986 |
| 4481510 | Electrooptical switching device An image contained in an incident signal is displayed on a screen forming part of a matrix-access display device. The device is primarily applicable to high-definition or small-area screens designed for operation in the transmission mode, and is controlle... | 11/06/1984 |
| 4440473 | Voltage polarity switching means for cholesteric liquid crystal displays A display device particularly adapted for use with a microfilm reader, in which an illuminating light source need be activated only in an initial reading stage. A first transparent electrode, a liquid crystal layer, a semiconductor layer and a second tran... | 04/03/1984 |
| 4436378 | Passive display module and system A passive display module for use in a display system having a source of illumination and a projection lens includes a liquid filled cell having a transparent top and a wall surrounding a display electrode area. A side light guide, coextensive with the dis... | 03/13/1984 |
| 4389096 | Image display apparatus of liquid crystal valve projection type A liquid crystal light valve projection type image display apparatus comprises an electro-optic element and a Schlieren optical system. The electro-optic element has a liquid crystal layer having a dielectric and optical anisotropy. An electric field havi... | 06/21/1983 |
| 4378955 | Method of and apparatus for a multimode image display with a liquid crystal light valve Method of and apparatus for operating an image display system using a hybrid field effect liquid crystal light valve of the type wherein the molecules of the nematic liquid crystal layer are helically twisted through an acute angle. A polarized projection... | 04/05/1983 |
| 4365869 | Large-screen visualization device A device for visualizing an image on a large screen with a small projection distance, in which the image is formed by pieces on an assembly of liquid crystal cells for then projecting it onto a visualization screen by means of an assembly of lenses associ... | 12/28/1982 |
| 4222641 | Image or picture projecting system using electronically controlled slides A large picture system includes a flat cinema screen, on which is projected pictures from a small transparent liquid crystal display (LCD) pattern panel. A light source is provided behind the pattern panel and a cinema lens is provided in front of the pat... | 09/16/1980 |
| 4105313 | Dual purpose photographic displays A visual presentation sheet is provided with a photographic image stratum and a liquid crystal stratum. Under certain energy conditions, the liquid crystal stratum scatters incident light so that the photographic image stratum is visible by direct observa... | 08/08/1978 |
| 4060316 | Imaging method An imaging method which is comprised of a spatially varying imagewise output intensity for a corresponding imaging input. An imaging member comprising between two electrodes a photoconductor in contact with an about 1 to about 6 micron thick layer of nema... | 11/29/1977 |
| 4040047 | Erasable thermo-optic storage display of a transmitted image The invention provides an optical display device, utilizing a thermo-optical effect to inscribe a transmitted image in a film of a material exhibiting a smectic state. The crystal liquid layer is inserted between transparent electrodes and heated to be in... | 08/02/1977 |
