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| Number | Title | Issue Date |
| 8175841 | Colour feedback with single optical sensor A method for controlling an illumination system comprises determining first drive settings for each of a plurality of colored light sources, the first drive settings generating an ON and an OFF time of the light sources; for each of the light sources of a first colo... | 05/08/2012 |
| 8164598 | Display assemblies and computer programs and methods for defect compensation The range of embodiments includes systems, methods, and apparatus for defect compensation that may be applied to displays having multiple imaging layers, such as high dynamic range displays, and/or to stereoscopic displays, such as autostereoscopic displays. ... | 04/24/2012 |
| 8130321 | Method and a system for calibrating an analogue video interface The invention relates to systems and methods for calibrating an analogue video interface. Due to the lack of pixel clock signal (206) information in the video-handling unit, a sample clock signal (202) needs to be generated, which should correspond wit... | 03/06/2012 |
| 8106858 | Aging compensation for display boards comprising light emitting elements The present invention provides a display board (30) comprising an array of light emitting elements (31), a driving means (32) for driving the light emitting elements (31) with image data, and an aging determination means (33). The ... | 01/31/2012 |
| 7999852 | Test or calibration of displayed greyscales Testing a display involves display of a series of test patterns, each at a different luminance or color, and with a predetermined minimum difference of luminance or color from their background, each pattern being unpredictable to a user, and determining if the user ... | 08/16/2011 |
| 7972032 | LED assembly The present invention relates to a light emitting device assembly. Such a LED assembly comprises a plurality of lamp-type light emitting devices, each of said lamp-type light emitting devices having a light output side and side walls. The plurality of lamp-type ligh... | 07/05/2011 |
| 7938543 | Cooling of reflective spatial light modulating devices An optical system as subject of the present invention comprises at least one packaged spatial light modulator comprising a front side for facing incident light. The optical system further comprises projection optics for projecting an image formed by the packaged spa... | 05/10/2011 |
| 7832869 | Method and device for performing stereoscopic image display based on color selective filters In one aspect, the present invention relates to a stereoscopic projection system including a projection device with at least one filter which filters a parameter of the light in a color selective manner. The at least one filter which filters a parameter of the light... | 11/16/2010 |
| 7812300 | Methods and systems for imaging having an illumination splitting means with a dynamic selecting means and a static selecting means An imaging system (100) for displaying color images is described. The imaging system (100) comprises an illumination source (102) for generating an illumination beam, an illumination splitting means (106) typically for generating differen... | 10/12/2010 |
| 7714881 | Method and device for visual masking of defects in matrix displays by using characteristics of the human vision system The present invention provides a method for reducing the visual impact of defects present in a matrix display comprising a plurality of pixels, said pixels comprising at least three sub-pixels, each sub-pixel intended for generating a sub-pixel color which cannot be... | 05/11/2010 |
| 7692866 | Display systems with and methods for multiple source colour illumination A color display (100, 200) for displaying an image is described wherein the color display (100, 200) is adapted for displaying a number of basic color light channels (102a, 102b, 102c). The color display (10... | 04/06/2010 |
| 7639849 | Methods, apparatus, and devices for noise reduction Embodiments include applying a compensation to an image signal based on nonuniformity of a display device. The compensation is based on information about variations in light-output response among elements of the display device. The compensation is also modified base... | 12/29/2009 |
| 7618147 | Efficient illumination for display systems and in methods for displaying A display system (100, 200, 300, 350, 400, 450) for displaying an image is described. The display system (100, 200, 300, 350, 400, 450) typically comprises one or a plurality of individual light sources (102) and a light collecting stage (110... | 11/17/2009 |
| 7559673 | Method and device for shading in a display system A shading device is described for use with a display system. The shading device includes a first component, typically a rigid component, and a second component. The second component at least partially covers the first component. The second component is a solid conti... | 07/14/2009 |
| 7443466 | Display element array with optimized pixel and sub-pixel layout for use in reflective displays A pixel structure is provided comprising a plurality of sub-pixels, each sub-pixel comprising at least two sub-sub-pixels, each sub-sub-pixel being for the emission of light of one of at least two colors, the sub-sub-pixels being uniformly arranged within the sub-pi... | 10/28/2008 |
| 7440205 | Variable intensity dimmer A dimming system (300) for dimming electromagnetic radiation intensity of a radiating unit, such as e.g., an optical system. The dimming system (300) is adjusted to provide a constant electromagnetic radiation intensity over the cross-section of the im... | 10/21/2008 |
| 7432667 | Projector lamp control for increased lamp life An electronic lamp control system for life time extension of a DC high intensity discharge lamp has a light sensor (130) for sensing an output of a lamp (31), a power supply (110) for the lamp (31), and a controller (20) for contro... | 10/07/2008 |
| 7365720 | Colour calibration of emissive display devices A calibration method for calibrating a fixed format emissive display device having a plurality of pixels is described In the display each pixel comprises at least three sub-pixels for emitting light of different real primary colours. The method comprises determining... | 04/29/2008 |
| 7364313 | Multiple image projection system and method for projecting multiple selected images adjacent each other The present invention provides a projection device comprising: at least two input channels for receiving at least a first and a second input image signal, an image recombination system for combining the input image signals into one imaging signal, an input port for ... | 04/29/2008 |
| 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 |
| 7284868 | Compact projection systems using multiple light sources The invention relates to a projection system using multiple light sources (1) at the same time. The projection system (100) comprises multiple light sources (1), a lens array system for each of the light sources (1), a condenser lens (... | 10/23/2007 |
| 7278746 | Motorized blend alignment tool A blending tool is described for blending sub-images of a multi-channel projection system comprising a plurality of projectors. The blending device typically has a number of adjustable optical blending means which each are adapted to be mounted on a projector of sai... | 10/09/2007 |
| 7262753 | Method and system for measuring and controlling an OLED display element for improved lifetime and light output A method of optimizing lifetime of an OLED display element and an OLED display element with optimized lifetime for possible use in a tiled display, while maintaining light output are described. It compensates an OLED operating parameter such as supply voltage and/or... | 08/28/2007 |
| 7192141 | Optical arrangement for non-inverting illumination system An optical design is described to be used in a color projection system. The system comprises a white light source (52), a light splitting means to split the white beam into color subbeams, optical components to direct each color subbeam on a light modulating ... | 03/20/2007 |
| 7176861 | Pixel structure with optimized subpixel sizes for emissive displays A method of designing a fixed format emissive display is described using a computing device having a processor and a memory, the display comprising an array of emissive pixel elements, each pixel element comprising at least two sub-pixel elements made of different m... | 02/13/2007 |
| 7090361 | Bundled light based alignment and maintenance tool for projection systems The present invention relates to projection systems, more particularly to a method for visualising test pattern grids in such a projection system. An array of adjustable, directed light sources is described, which is to be used as a test pattern generator for... | 08/15/2006 |
| 7038186 | Method and system for real time correction of an image The present invention relates to a system and method for real time correction of light output and/or color of an image displayed on a display device. The system comprises: a display device (1) comprising an active display ar... | 05/02/2006 |
| 7033027 | Method and device for providing a scrolling illumination A display system comprises a light source (20) producing a beam of unpolarised light and a dynamic filter (28) for filtering said beam of light, wherein a first region of the filter (28) transmits along a first path a first portion of the beam o... | 04/25/2006 |
| 6984042 | Convergence system for a projection display system A convergence system 100 comprises a dichroic prism 102 for splitting and/or recombining light beams, intermediate parts 104a, 104b, 104c and a light modulator 106a, 106b, 106... | 01/10/2006 |
| 6966657 | Projection lens fixation and adjustment mechanism A system and method for fixing a projection lens 102 and adjusting the position of a projection lens 102 is provided, which is compact and has a high precision. The projection lens 102 is positioned on a base plate 104. The position of th... | 11/22/2005 |
| 6950098 | Method and system for real time correction of an image The present invention relates to a system and method for real time correction of light output and/or colour of an image displayed on a display device. The system comprises:a display device (1) comprising an active display area (6) for displaying the im... | 09/27/2005 |
| 6848792 | Full resolution multiple image projection system and method for projecting two images in full resolution adjacent each other The present invention provides a projection device (10) which comprises: at least two high resolution input channels (12, 14) for receiving a first and a second high resolution input signal (20, 22) having info... | 02/01/2005 |
| 6830339 | Polarized light recuperation apparatus The present invention provides a method and a device for optical polarization recuperation for producing a substantially polarized light beam from an unpolarized light beam comprising first and second polarizations. The device according to the invention compr... | 12/14/2004 |
| 6751027 | Projector with sealed inner compartment A projector is provided which can handle high light intensities without dust or foreign matter penetrating the inside of the apparatus and thus deteriorating the quality of the image projected. The projector apparatus comprises a spatial light modulator (SLM) unit p... | 06/15/2004 |
| 6416183 | Apparatus and method for three-dimensional movement of a projected modulated beam The present invention to provides a projection system for three-dimensional movement of projected modulated beam. It comprises a stationary light source, a projection lens, an optical path from the light source to the projection lens and a light beam modu... | 07/09/2002 |
