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| Number | Title | Issue Date |
| 7339625 | Optical and electrical blending of display images A method and a device for soft edge blending of projected display images (16a, 16b) is provided. The method combines optical and electrical soft edge blending in an blending area (26) by using electrical blending in one fraction ( | 03/04/2008 |
| 7312835 | Projection type display apparatus In a projection type display apparatus including a blue CRT display apparatus with low luminous efficiency and low luminous efficiency, the present invention seeks to improve contrast while suppressing the fall in brightness for red, green, and blue color as a whole... | 12/25/2007 |
| 7268837 | Method and system for automated convergence and focus verification of projected images A method and system that objectively measures the convergence and focus of a 2 or 3 spatial light modulator (SLM) projection display. The system uses five (5) CCD cameras and a frame grabber to store red, green, and blue (R-G-B) data from selected pixels located in ... | 09/11/2007 |
| 7224411 | Digital projection equipment and techniques Apparatus and techniques for enhancing characteristics of electronic projection systems are detailed. Included among the techniques are both superimposition of sub-images and tiling of superimposed images, the combination of which can be advantageous in improving re... | 05/29/2007 |
| 7215362 | Auto-calibration of multi-projector systems The method for automatically calibrating a multi-projector system with at least two projectors, a digital camera and a control unit for controlling the projectors and the camera is performed according to the following steps: produc... | 05/08/2007 |
| 7176986 | Projection television A projection television including a CRT assembly projecting image beams and a reflecting mirror reflecting the image beams. The projection television has a support casing having support frames provided on both sides thereof below the reflecting mirror, receiving and... | 02/13/2007 |
| 7011416 | Projection television A projection television having a CRT assembly projecting image beams and front and rear casings, respectively provided in a front and a back of the CRT assembly, and further having a pair of CRT brackets provided between the front and rear casings, to support the CR... | 03/14/2006 |
| 6995810 | Method and system for automated convergence and focus verification of projected images A method and system that objectively measures the convergence and focus of a 2 or 3 spatial light modulator (SLM) projection display. The system uses five (5) CCD cameras and a frame grabber to store red, green, and blue (R-G-B) data from selected pixels located in ... | 02/07/2006 |
| 6967632 | Multi-monitor, auxiliary monitor, and monitor supporter A multi-monitor is provided with a first display device having a display screen and a second display device having a display screen smaller than the display screen of the first display device, and a supporting mechanism which is mountable on an outside portion of th... | 11/22/2005 |
| 6956551 | Device for displaying images by projection, comprising dichroic filters with a gradient Device comprising: matrices of reflecting elements which can be electrically driven, and means for deconstructing a beam of polychromatic light and means for reconstructing complementary reflected beams, comprising... | 10/18/2005 |
| 6922295 | Lens assembly with integrated focus mount and CRT coupler A lens assembly adapted to be connected to a CRT and affixed to mounting structure in a projection television cabinet. The lens assembly includes a tubular lens mount having a longitudinal axis and at least a first optical lens element mounted along the longitudinal... | 07/26/2005 |
| 6822699 | Cathode ray tube and method of displaying picture A main picture is displayed in monochrome in a main picture display area by emission of a first phosphor layer formed of a white emission phosphor. A second phosphor layer formed of a phosphor different from the first phosphor layer is provided in a region different... | 11/23/2004 |
| 6806872 | Video signal processing system It cannot be ensured that display setting changes are made at once in a system in which the number of display settings for a display processing apparatus is extremely large, an application is running under an operating system and display setting register change time... | 10/19/2004 |
| 6803971 | Projection type video display device that prevents color nonuniformity Two of four light sources have canceling characteristics with respect to color nonuniformity, and the other two light sources have canceling characteristics with respect to color nonuniformity. A light emission stop detector detects that each of the light sources st... | 10/12/2004 |
| 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 |
| 6570623 | Optical blending for multi-projector display wall systems A multi-projector video wall system employs a blending frame to blend the overlapping portions of two adjacent images I1 and I2. The blending frame is preferably located a distance Dframe from the aperture of the projector... | 05/27/2003 |
| 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 |
| 6545718 | Cathode ray tube and apparatus and method of controlling brightness A control portion detects a level of video signals for each color when video signals are inputted from a frame memory to DSP circuits. Next, the control portion calculates an appropriate correction coefficient of each color to be used in modulation contro... | 04/08/2003 |
| 6501517 | Optical system in projection television receiver An optical system in a projection television receiver includes: a screen for simultaneously displaying R (Red), G (Green) and B (Blue) images thereon; and a light source part comprising R, G and B cathode ray tubes. The R and B cathode ray tubes project t... | 12/31/2002 |
| 6384876 | Vertically configured video projection system A video projector is arranged with three color CRTs vertically aligned with respect to a forwardly located projection surface. The projection surface is in a room having opposite side walls on either side of said projection surface. The video projector is... | 05/07/2002 |
| 6377317 | Method and apparatus for correcting color component focusing in a rear-projection television set A rear-projection television set in which two different dynamic focusing waveforms are used. The first dynamic focusing waveform is used only to focus an electron beam in a CRT generating the blue component of the picture being displayed. The second dynam... | 04/23/2002 |
| 6377306 | Method and apparatus for providing a seamless tiled display A display for producing a seamless composite image from at least two discrete images. The display includes one or more projectors for projecting each of the discrete images separately onto a screen such that at least one of the discrete images overlaps at... | 04/23/2002 |
| 6377319 | CRT mounting bracket for projection television sets A projection television set having a screen and three projection units each capable of projecting a monochromatic image onto the screen. The projection units each having a cathode ray tube (CRT) optically coupled to a projection lens, which includes both ... | 04/23/2002 |
| 6369864 | Optical unit spacer-bracket for projection television sets A projection television set having a screen and three projection units each capable of projecting a monochromatic image onto the screen. The projection units each having a cathode ray tube (CRT) optically coupled to a projection lens, which includes both ... | 04/09/2002 |
| 6342929 | Projection image display apparatus The projection image display apparatus includes a plurality of image generating sources for generating three primary colors, including red, green, blue image light, respectively, and a projection lens containing a plurality of lens elements provided in co... | 01/29/2002 |
| 5877823 | Projection television device A projection television device includes a projection cathode-ray tube for red (1a), a projection cathode-ray tube for green (1b) and a projection cathode-ray tube for blue (1c) which are provided with phosphor layers (5a, 5b and 5c), respectively, each ha... | 03/02/1999 |
| 5712691 | Method and apparatus for area dependent dynamic blue de-focusing A method and projection television system for projecting images having a plurality of color components, includes a device for filtering a first color component signal from a composite signal to provide a filtered first color component signal. A defocusing... | 01/27/1998 |
| 5559564 | Cathode ray tube apparatus for projection TV system A cathode ray tube apparatus for a projection TV system which improves the color purity of the luminescence in the cathode ray tube, reduces the chromatic aberration by the projection lens, enables the same type of projection lens to be mounted for all of... | 09/24/1996 |
| 5534949 | Two channel field sequential color display system A two-channel field sequential display system utilizes both simultaneous and sequential color display methods to display full color images in a way that is less complex, smaller in size and less costly than prior art additive color systems, while exhibiti... | 07/09/1996 |
| 5473391 | Convergence displacement correcting device for projection-type image display apparatus and method thereof A projection-type image display apparatus, in which a correction raster shape correction circuit is supplied with a sawtoothed-shaped voltage changing in level in accordance with a static convergence regulation voltage for correcting respective raster sha... | 12/05/1995 |
| 5418579 | Multiplanar image display system with plural display units A multiplanar image display system having a plurality of display units disposed to expose, by transmission through and reflection by transparent panels, displayed images to a viewing end of an image chamber. The images overlap along a common viewing axis ... | 05/23/1995 |
| 5373347 | Staggered multiple CRT's in a photographic process printer A photographic printer that uses a plurality of small CRTs to print wide format images. Within the printer, the CRTs are positioned horizontally adjacent one another but vertically displaced so that image segments displayed by adjacent CRTs either abut or... | 12/13/1994 |
| 5367380 | Velocity modulation apparatus for three-tube projection TV In the velocity modulation apparatus for a three-tube projection television, an effective velocity modulation can be implemented under due consideration of humans eye's relative visibility characteristics with respect to the three primary colors of R, G a... | 11/22/1994 |
| 5337093 | Projection television system including a plurality of display elements with corresponding optical axes incident to a screen at different points offset from the screen center In a projection television system having display elements displaying images of respective colors, a screen on which a color image is formed by magnifying and synthesizing the images of the respective colors, projection lenses for magnifying the images on ... | 08/09/1994 |
| 5298984 | Device for positioning the cathode ray tubes in a projection television system A cathode ray tube device employed in a projection apparatus for projecting an image on a screen. The cathode ray tube device includes a supporting frame mounted on a rim of a front panel section of the cathode ray tube, a lens plate in the form of a fram... | 03/29/1994 |
| 5293224 | White balance control system A quality of blue light projected on a screen is detected. A ratio of the detected quantity of the light to a whole quantity is calculated. The calculated ratio is compared with a reference ratio, and a deviation of the calculated ratio from the reference... | 03/08/1994 |
| 5276524 | Wide display with two CRTs arranged to form a non-overlapping juxtaposed image with one CRT movable from an accommodated position to an operative position A display device is provide with a main screen, first and second CRTs, and holder mechanism. The first CRT is disposed within a housing of the display device and faces in a vertical direction. The second CRT faces in a horizontal direction and is movable ... | 01/04/1994 |
| 5235173 | Process for positioning a light beam on a picture area A method of positioning a light beam on a picture surface relative to a light sensor located on the picture surface includes the step of completely illuminating the sensor with the light beam while the sensor is exposed to ambient light and recording a fi... | 08/10/1993 |
| 5138442 | Image registration system for multiple picture tube projection television A projector including a projector to superpose pictures on a screen, the pictures being displayed on cathode ray tubes corresponding to different colors. Reference signals are inputted to the corresponding cathode ray tubes for a predetermined period of t... | 08/11/1992 |
| 5042908 | Projection screen device A projection screen device for a back projection type television system for projecting an image by emitting beams from a projector, comprising, a lenticular sheet having black strips provided on an emergent surface of the lenticular sheet, a sensor, which... | 08/27/1991 |
