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| Number | Title | Issue Date |
| 7430022 | Color display device The invention relates to a color display device for display a color image and a method of operating such display. The color display device is provided with a plurality of picture elements, two selectable light sources having different predetermined radiance spectra,... | 09/30/2008 |
| 7333156 | Sequential colour visual telepresence system For implementing an anthropomorphic visual telepresence system with high resolution and low loop latency a sequential color video loop is provided. A sequential color camera sequentially captures color images, each captured image consisting of a portion of a single ... | 02/19/2008 |
| 7304619 | Method and apparatus for controllably compensating for distortions in a laser projection display A method and apparatus are provided to controllably compensate for distortions in an image produced by an LPD, where the distortion arises from the shape and/or angle of the viewing surface relative to the LPD. For example, the LPD can determine the angle of the vie... | 12/04/2007 |
| 7283181 | Selectable color adjustment for image display A display system is configured to produce a color image formed of a plurality of differently colored images and may include at least one light source that directs light along an optical path, and at least one filter having a given optical filter characteristic. The ... | 10/16/2007 |
| 7273281 | Method and apparatus for aligning a plurality of lasers in an electronic display device A method and apparatus are provided to compensate for variations in the alignment of a plurality of lasers 102, 104, 106. A controller 142 varies the time at which the lasers 102, 104, 106 are energized so that the laser light emitted therefrom ... | 09/25/2007 |
| 7245327 | Pulse width modulated display with equalized pulse width segments A field sequential pulse width modulated display system comprises a digital micromirror device having a plurality of micromirrors that each selectively pivot to reflect light onto a screen to illuminate a corresponding pixel. A driver circuit controls the DMD respon... | 07/17/2007 |
| 7163294 | Method and apparatus for providing an interface between a liquid crystal display controller and a laser projection display An apparatus is provided for controlling a laser projection device (LPD). The apparatus is comprised of a liquid crystal display controller, a laser projection display controller, and a laser projection display engine. The liquid crystal display controller is adapte... | 01/16/2007 |
| 7131728 | Method and apparatus for displaying information in automotive application using a laser projection display An image projector is supported by a vehicle to project a two-dimensional image on a projection surface, such as a portion of a windshield, an instrument panel, or a seat back, within the vehicle, for viewing by an occupant of the vehicle. ... | 11/07/2006 |
| 7121668 | Device and method for generating an image for projection In an image projection device, interferences between the light source and the light modulator leading to visible interferences in the projected image are suppressed by an interference cancellation circuit that pre-corrects the control signal that includes the image ... | 10/17/2006 |
| 7081928 | Optical system for full color, video projector using single light valve with plural sub-pixel reflectors A full color video projector system using a light source and a single light valve. The output of the light source passes through a condenser lens. The lens is directed toward a splayed array of red, green, and blue dichroic reflector color filters. The reflected thr... | 07/25/2006 |
| 7077325 | Portable instrument for electro-optically reading indicia and for projecting a bit-mapped image A portable instrument incorporates an electro-optical assembly for reading indicia during a reading mode, and for projecting a bit-mapped image during a display mode. A manually operable switch on the instrument is disposed for selecting one of the modes. The image ... | 07/18/2006 |
| 7046309 | Single panel type video display There is provided a single panel type video display capable of increasing the luminance of image. A color separator separates light from a light source into light beams in three colors in a band shape to emit the light beams and introduces the band-shaped light beam... | 05/16/2006 |
| 7029126 | Single panel color image projection system In one embodiment, a color projection system includes a lamp; at least one prism configured to diffract light from the lamp into a diffracted beam; and an LC microdisplay panel or MEMS panel configured to receive the diffracted beam from the at least one prism, wher... | 04/18/2006 |
| 7030353 | Method and apparatus for controllably reducing power delivered by a laser projection display A method and apparatus are provided to controllably reduce power of a laser projection display (LPD) in response to detecting a variation in a viewing surface. During the operation of the LPD, a controller 142 monitors laser light being reflected from the vie... | 04/18/2006 |
| 7023606 | Micromirror array for projection TV In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 04/04/2006 |
| 7012731 | Packaged micromirror array for a projection display In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 03/14/2006 |
| 6975366 | Digital display system using pulsed lasers An image projection system comprises a laser source that generates a series of periodic pulses having substantially uniform energy content, a spatial light modulator, and a modulator driver synchronized with the laser pulses so that transition intervals of the modul... | 12/13/2005 |
| 6970280 | High angle micro-mirrors and processes A micro-mirror that comprises a substrate, a hinge structure formed on the substrate and a mirror plate attached to the hinge structure is provided for use in display systems. The mirror plate is capable of rotating from a non-deflected resting state to a state that... | 11/29/2005 |
| 6933987 | Multi channel imaging engine apparatus A multi channel video engine (10) for accepting, dividing, modifying and recombining light to project an image. A housing (12) encloses an optical assembly (28) having a dichroic mirror assembly (58) and a color cube (60). A plural... | 08/23/2005 |
| 6893133 | Single panel color image projection system A color projection system includes a lamp and at least one diffraction grating or at least one prism that diffracts light from the lamp onto an LC microdisplay panel. By moving either the at least one diffraction grating or the at least one prism with respect to the... | 05/17/2005 |
| 6862047 | Image projection apparatus In a color image projection apparatus using a color wheel to illuminate a spatial optical modulator with light in color sequence, light reflected from the color wheel is added to light having passed through the color wheel, and the combined light is spatially modula... | 03/01/2005 |
| 6824270 | Single-panel color image display apparatus and scrolling method A single-panel color image display apparatus realizing a wide color gamut is provided. The single-panel color image display apparatus includes a colored light separator having a plurality of dichroic filters in which a dichroic filter reflecting a red light beam may... | 11/30/2004 |
| 6805447 | Rear projection display device and projecting method used for the same A flat mirror for folding an optical path in a casing of a rear projection television is arranged in the casing on not the side of a screen but a rear or upper side of the casing. In order to direct an optical path of an image projection to a flat mirror on a rear o... | 10/19/2004 |
| 6755535 | Enclosure for projection television sets A projection television set having an enclosure housing a screen, an optical unit and a mirror, wherein the optical unit and mirror are capable of projecting an image onto the screen. The enclosure is preferably constructed from hollow plastic extruded panels. In ad... | 06/29/2004 |
| 6690432 | Alignment of the optical and the electrical scan in a scrolling color projector A prism is mounted onto a motor without regard to its rotation angle relative to the motor index. Its position is electronically set later after construction of the optical path. A motor controller is used to control the rotation of the prism. This motor ... | 02/10/2004 |
| 6683658 | Scanner phase control for a scrolling color projector A scanner phase control for a scrolling color projector utilizes the back-EMF value of a motor which rotates a prism of the scanner to set a reference point for the prism. A reference phase signal is provided which corresponds to timing information of the... | 01/27/2004 |
| 6642970 | Single panel color projector The projector comprises a light source that emits illuminating light, a single modulation panel, a projection optical system, a color filter mechanism, a converging optical system that converges the illuminating light on a filter surface of the color filt... | 11/04/2003 |
| 6623122 | Light source optical system and projector having first and second lamps of different spectral distributions A light source optical system capable of forming an image having good balance in brightness of red, blue, and green color light, having high overall brightness, and having good color reproducibility, on a screen is provided. The light source optical syste... | 09/23/2003 |
| 6621609 | Light beam display A laser beam display includes at least a first and second plurality of laser beam sources, each of which may preferably be an array of semiconductor lasers, providing a plurality of laser beams in an optical path so as to reflect off of reflective facets ... | 09/16/2003 |
| 6621615 | Method and system for image display A light-modulating system, includes: a light source for emitting a sequence of light pulses at a period Tp ; a light modulator having a variable-width switching profile with rise and fall times Tr and Tf respectively, wher... | 09/16/2003 |
| 6565214 | Enclosure for projection television sets A projection television set having an enclosure housing a screen, an optical unit and a mirror, wherein the optical unit and mirror are capable of projecting an image onto the screen. The enclosure is preferably constructed from hollow plastic extruded pa... | 05/20/2003 |
| 6417967 | System and method for efficient illumination in color projection displays An illumination system for a color projection display. In one embodiment a broad spectrum light source illuminates a multilevel optical phase element which disperses the broad spectrum light from the light source by diffraction. A display having a number ... | 07/09/2002 |
| 6252636 | Pulsed two lamp single light valve display system A pulse driven two lamp (40, 50) single light valve (62) imaging display system (10). The first lamp (40) is used to generate red light, and the second lamp (50) is used to generate blue and green light. A beam splitter (46) combines the white light of th... | 06/26/2001 |
| 6219110 | Single-panel color projector Light emitted from a white light source is separated into red, green and blue light beams by dichroic mirrors. The resulting light beams are directed onto a lenticular lens system having large-pitch lenticular lenses and small-pitch lenticular lenses form... | 04/17/2001 |
| 6175440 | Laser beam display A laser beam display includes at least a first and second plurality of laser beam sources, each of which may preferably be an array of semiconductor lasers, providing a plurality of laser beams in an optical path so as to reflect off of reflective facets ... | 01/16/2001 |
| 6091461 | Electronically self-aligning high resolution projection display with rotating mirrors and piezoelectric transducers A projection display device wherein a modulated laser beam is scanned across a viewing surface by a system of rotating mirrors. A correcting mirror is provided for introducing small variations in the path of the beam. An instantaneous position of the beam... | 07/18/2000 |
| 6020937 | High resolution digital projection TV with dynamically adjustable resolution utilizing a system of rotating mirrors A video display system includes a laser beam that is reflected from a vertical scan rotating mirror, then from a horizontal scan rotating mirror and then toward a viewing surface. The rotational angles of the mirrors and the intensity of the laser are con... | 02/01/2000 |
| 5957560 | Light shutter projector with a fluorescent screen Disclosed is a ferroelectric liquid crystal display projector employing a fluorescent screen, including a light source emitting light of a predetermined wavelength; a first condensing lens for converting the light radiated from the light source into beams... | 09/28/1999 |
| 5828424 | Process and apparatus for generating at least three laser beams of different wavelength for the display of color video pictures In a process for generating at least three laser beams of different wavelengths for displaying color video pictures, a pulsed laser is used to generate light. The light output of the pulsed laser is released in a pulse and is introduced into a medium with... | 10/27/1998 |
| 5781251 | Method and apparatus for optical scanning for single panel color projection video display A method and apparatus for a single panel projector, for projecting images having a plurality of color components, include a mechanism for deflecting light into a plurality of directions, and a light panel for receiving the light deflected by the deflecti... | 07/14/1998 |
