Abstract: An apparatus and method for reducing the moiré effect in rear-projection displays by rotating the dark-stripe structure (711, 712) in the screen (71) 45±15 degrees relative to the displayed pixel structure. By rotating the dark-stripes (711) relative to the displayed pixels, the spatial frequency at which the moiré effect sets in can be improved by 15% to 41%.

Abstract: A display system (200) in which light from source (202) is focused onto a spinning color wheel (204). The spinning color wheel (204) spins at a constant rate and creates of beam of light that changes from one primary color to the next in rapid sequence. The primary colored beam of light impinges a spatial light modulator (206), which is often a DMD or LCD. A controller (208) receives an input video signal and determines the native frame rate of the image source. The controller (208) sends image data to the spatial light modulator (206) in synchronization with the color wheel (204)—image data representing the red portions of the image is sent during the period in which the red color filter is passing through the beam of light—at the native frame rate of the image source. The modulated light is focused onto an image plane (210) by projection lens (212) to form an image. The eye of the viewer integrates the sequential primary color images giving the perception of a single full-color image.

Abstract: An apparatus and method for reducing the moiré effect in rear-projection displays by rotating the dark-stripe structure (711, 712) in the screen (71) 45±15 degrees relative to the displayed pixel structure. By rotating the dark-stripes (711) relative to the displayed pixels, the spatial frequency at which the moiré effect sets in can be improved by 15% to 41%.

Abstract: An apparatus and method for reducing the moiré effect in rear-projection displays by rotating the dark-stripe structure (711, 712) in the screen (71) 45±15 degrees relative to the displayed pixel structure. By rotating the dark-stripes (711) relative to the displayed pixels, the spatial frequency at which the moiré effect sets in can be improved by 15% to 41%.

Abstract: A tone display method which prevents degradation in image quality of moving images when the subfield method is utilized without an increase in cost. When tone display is performed with 256 tones with respect to one certain color, in each frame, segments 1 to 6 in time are set corresponding to the plural time-shared time bands of the color and each segment includes one or several subfields (sf). In each case, as the tone is increased by 42 (or 43) for segments 1 through 6, sequentially, the subfields in the segment being lit so that the tone is increased continuously.

Abstract: A display system 100 in which light from source (102) is focused onto a spinning color wheel (104). The spinning color wheel (104) creates of beam of light that changes from one primary color to the next in rapid sequence. The primary colored beam of light impinges a spatial light modulator (106), in this case a DMD. A controller (108) receives an input video signal and sends image data to the spatial light modulator (106) in synchronization with the color wheel (104)—image data representing the red portions of the image is sent during the period in which the red color filter is passing through the beam of light. The modulated red beam of light is focused onto an image plane (110) by projection lens (112) to form a red image. The process repeats as the green and blue filters pass through the path of the light beam. The eye of the viewer integrates the three primary color images giving the perception of a single full-color image.

Abstract: An entertainment portal, which serves as a common user interface (UI) to access local and remote entertainment content, integrate and categorize it, then display it on a single HDTV. The interface aggregates content from many different delivery mechanisms and presents it in a single form. The portal, to be datacast by a local broadcaster, will integrate content creators, broadcasters, advertisers, manufactures, websites, and home consumers by channeling people and content through a uniform technology experience. The user interface, which is hosted remotely and cached locally, allows for continuous updating of the portal so that up-to-the-minute content is displayed on the screen, while ensuring that the portal is always available, even when the remote host is not. This allows the UI to grow, change, and update daily without affecting the display hardware.

Abstract: A method and apparatus for reducing the color separation in sequential color display systems. The disclosed approach adds a white (clear) segment 923 to the color filtering system 92 and applies an algorithm, which separates the luminance channel as much as possible into this white segment. As a result, in the case of a black-and-white image where color separation is most visible, color segments will have a minimal amount of energy in them, thereby reducing the color separation effect. The algorithm controls the process of transferring the energy from the colored segments into the white segment and also allows for a dynamic mode, where on a pixel-by-pixel basis, both color separation reduction is made for the white portions of the image and overall image brightness is improved in the non-white (color) portions of the image.

Abstract: An apparatus and method for reducing the moiré effect in rear-projection displays by rotating the dark-stripe structure (711, 712) in the screen (71) 45±15 degrees relative to the displayed pixel structure. By rotating the dark-stripes (711) relative to the displayed pixels, the spatial frequency at which the moiré effect sets in can be improved by 15% to 41%.

Abstract: A method and apparatus for reducing the color separation in sequential color display systems. The disclosed approach adds a white (clear) segment 923 to the color filtering system 92 and applies an algorithm, which separates the luminance channel as much as possible into this white segment. As a result, in the case of a black-and-white image where color separation is most visible, color segments will have a minimal amount of energy in them, thereby reducing the color separation effect. The algorithm controls the process of transferring the energy from the colored segments into the white segment and also allows for a dynamic mode, where on a pixel-by-pixel basis, both color separation reduction is made for the white portions of the image and overall image brightness is improved in the non-white (color) portions of the image.

Abstract: A display system (200) in which light from source (202) is focused onto a spinning color wheel (204). The spinning color wheel (204) spins at a constant rate and creates of beam of light that changes from one primary color to the next in rapid sequence. The primary colored beam of light impinges a spatial light modulator (206), which is often a DMD or LCD. A controller (208) receives an input video signal and determines the native frame rate of the image source. The controller (208) sends image data to the spatial light modulator (206) in synchronization with the color wheel (204)—image data representing the red portions of the image is sent during the period in which the red color filter is passing through the beam of light—at the native frame rate of the image source. The modulated light is focused onto an image plane (210) by projection lens (212) to form an image. The eye of the viewer integrates the sequential primary color images giving the perception of a single full-color image.

Abstract: A display system 100 in which light from source (102) is focused onto a spinning color wheel (104). The spinning color wheel (104) creates of beam of light that changes from one primary color to the next in rapid sequence. The primary colored beam of light impinges a spatial light modulator (106), in this case a DMD. A controller (108) receives an input video signal and sends image data to the spatial light modulator (106) in synchronization with the color wheel (104)—image data representing the red portions of the image is sent during the period in which the red color filter is passing through the beam of light. The modulated red beam of light is focused onto an image plane (110) by projection lens (112) to form a red image. The process repeats as the green and blue filters pass through the path of the light beam. The eye of the viewer integrates the three primary color images giving the perception of a single full-color image.

Abstract: A tone display method is provided that can prevent image quality deterioration of the dynamic image and can avoid a cost increase. When an image with 256 tones is displayed, one field is divided into 37 subfields for one color. Among the 8 bits corresponding to the 256 tones, the six high-order bits from the third bit are displayed by means of time width modulation using 35 subfields SF3-SF37 having weights of ““4” and “8”. The two low-order bits are displayed on a binary base using two subfields SF1 and SF2 whose weights are “'1” and “2”, respectively.

Abstract: A formatter and frame buffer unit (20) for a display system (10) that uses a spatial light modulator (16) to display data formatted in bit-planes. Formatters (21) convert multi-bit pixel data to bit-plane data. The frame buffer memory (25) is comprised of conventional DRAM devices. To allow the use of DRAMs, formatters (21) operate on a number of consecutive pixels, the number of pixels being sufficient for an extended page mode form of addressing the DRAMs.

Abstract: A display system using red, green, blue, and white light. The system derives data for the white portion of a color wheel or a white device from the red, green and blue data. The white portion of the color wheel is controlled as if it were another primary color on the wheel. Errors are prevented by a correction applied if the unfiltered light from the source has a different color temperature than the white light produced using the red, green and blue segments of the color wheel, or the devices for those colors. Analysis is performed on the data to determine if white light is necessary to be added to each frame of data.

Abstract: A display system using red, green, blue, and white light. The system derives data for the white portion of a color wheel or a white device from the red, green and blue data. The white portion of the color wheel is controlled as if it were another primary color on the wheel. Errors are prevented by a correction applied if the unfiltered light from the source has a different color temperature than the white light produced using the red, green and blue segments of the color wheel, or the devices for those colors. Analysis is performed on the data to determine if white light is necessary to be added to each frame of data.

Abstract: A baseline display system (10) is capable of receiving different types of input signals, analog or digital, having different horizontal and vertical input resolutions. The system uses serial video processors (SVPs) (33, 34, 43, 83) that have a given input size and spatial light modulators (SLMs) (18) that have a given output (display) resolution- The baseline system (10) is configurable to meet bandwidth requirements for displaying real time images on SLMs of increasing resolution. Data is decimated (downscaled) when appropriate to fit the SVP input size (FIGS. 4 and 8) and upscaled, vertically or horizontally, when appropriate to fit the SLM display resolution (FIGS. 3, 4, 7, and 8). Four systems (20, 50, 60, 90) , each appropriate for a different SLM resolution are described.