Abstract: A wireless detachable rendering device (1) having a display (10) and a wired network connection (14) to a data server (16) is equipped with a local storage means (11) such as a HDD. When device (1) is docked in a stand, data to be rendered on display is in a best-effort like fashion loaded via the wired connection into the storage means (11). Thus data is available for undocked use of device (1). Power consumption is reduced as use of the wireless connection is avoided.

Abstract: An image display apparatus includes a second converging unit constructed so that a light flux from part of a first light source or from a separately provided second light source is converged to have a line shape, a spectroscope/deflector unit constructed so that his line-shape light flux is irradiated on a region of the display device different from the region on which a strip-shape light flux from a first converging unit is irradiated, and an image processing unit constructed to control so that the pixels of the region of the display device on which the line-shape light flux is irradiated is turned on and off in accordance with image data being displayed.

Abstract: A display system and method are provided. The system typically includes a display configured to control visible light, as well as to sense an optical signal projected thereon, the display being adapted to freeze a projected image by storing the optical signal associated with the live projected image in memory associated with the display and controlling visible light corresponding to the stored optical signal to form a frozen projection image.

Abstract: A light source, an image display panel including multiple pixel regions, each of which modulates light, light control means for focusing light from the light source onto associated pixel regions according to their wavelength ranges, and optical systems that form an image on a projection plane by the light that has been modulated by the panel are provided. A circuit for generating data representing multiple image subframes from data representing each image frame as a component of the image and getting the subframes displayed by the panel time-sequentially, and an image shifter for shifting a selected one of the subframes on the projection plane are further provided. The same area on the projection plane is sequentially irradiated with light rays that have been modulated by different pixel regions of the panel and that fall within respectively different wavelength ranges.

Abstract: An apparatus comprising a plurality of columns bound together, configured to display a single row of pixels scanned out from top to bottom. It also comprises a timing control unit to synchronize between the columns to allow all pixels of a single row to be lit at the same time.

Abstract: A method for operating a liquid crystal display having a panel with a back light includes applying a first gate signal starting a real data period followed by a second gate signal starting a black data period sequentially to gate lines of the panel, applying actual picture data signals to data lines of the panel during the real data period and reset data signals to the data lines of the panel during the black data period to drive cells of the panel during a frame along a gate line and controlling a ratio of the real data period to the black data period for a subsequent frame.

Abstract: An apparatus comprising a plurality of columns bound together, configured to display a single row of pixels scanned out from top to bottom. It also comprises a timing control unit to synchronize between the columns to allow all pixels of a single row to be lit at the same time.

Abstract: An apparatus comprising a plurality of columns bound together, configured to display a single row of pixels scanned out from top to bottom. It also comprises a timing control unit to synchronize between the columns to allow all pixels of a single row to be lit at the same time.

Abstract: A method of displaying a color video picture according to a field sequential process is provided. A display device displays an image comprising a matrix of pixels. One frame image is composed of four field images ranging from a first field image to a fourth field image. With four adjacent pixels handled as one unit, the colors R, G, B, W of illuminating lights applied to the pixels in each unit are different from each other, and the arrangement of the colors is successively switched or changed in each field period. Information representing the colors R, G, B, W separated from a video signal is displayed sequentially in successive fields at positions corresponding to the colors of the illuminating lights applied to the pixels and times at which the illuminating lights are applied to the pixels.

Abstract: A projection type color liquid crystal display apparatus includes: light collimation means for producing collimated light; main-wavelength band separation means for receiving the collimated light from the light collimation means and producing a plurality of light beams having respectively different wavelength bands and exiting at respectively different angles; sub-wavelength band separation means provided adjacent the main-wavelength band separation means, the sub-wavelength band separation means receiving the collimated light from the light collimation means and producing at least one light beam having the same wavelength band as the wavelength band of at least one of the light beams from the main-wavelength band separation means; a liquid crystal display device for receiving the light beams from the main-wavelength band separation means and the light beams from the sub-wavelength band separation means and modulating the light beams; and an optical system for receiving the light beams transmitted through the

Abstract: A three-color backlight type display device according to the present invention is provided for reproducing a full color image with no use of color filters. In use, a composite signal is separated by a RGB decoder into R, G, and B color components which are sampled on a frame-by-frame basis and stored as a serial RGB data into a RAM. The color components of the serial data are read from the RAM with a delay of one frame after the write time and within a shorter duration for data compression. The color components of compressed form are transmitted to an LCD where each of them is allocated to form a dot pattern during a blanking period. In synchronization with the allocation of the color component, a corresponding one of the three backlights is irradiated. This action is repeated for all the R, G, and B components in a succession. Accordingly, a clear color image can be reproduced having less unwanted artifacts, e.g.

Abstract: A reflection type liquid crystal display device of the present invention includes: a first substrate having a reflective electrode formed thereon; a second substrate having a transparent counter substrate and a color filter formed thereon; and a liquid crystal layer interposed between the first and second substrates, wherein the color filter includes a red color filter portion and a cyan color filter portion. The cyan color filter portion transmits light having a complementary color of a color of light transmitted through the red color filter portion. The light transmitted through the red color filter portion has a chromaticity (x, y) on the XYZ color system chromaticity diagram satisfying the following formulae at a 2.degree. viewing angle using a standard light source D.sub.65 :(0.038).sup.2 .ltoreq.(x-0.313).sup.2 +(25/4).multidot.(y-0.329).sup.2 .ltoreq.(0.178).sup.2 ;y.ltoreq.0.145x+0.236; andy.gtoreq.-0.233x+0.376.

Abstract: A projection apparatus is disclosed that can be used for projection TV and related applications. The apparatus comprises a light source, a projection optical system, a DMD with multiple micromirrors, and a controller for individually controlling the tilt of the micromirrors. The projection optical system comprises, in order from the DMD side, a first lens group, an aperture stop, and a second lens group. An illumination stop is situated between the first and second lens groups. Light from the light source passes through the illumination stop and the first lens group to impinge on the DMD. The controller coordinatedly controls the tilt of the micromirrors in the DMD so that the impinging light is selectively reflected to one or the other of the aperture stop and the illumination stop, thereby eliminating ghost-forming reflections of light not projected onto a screen.

Abstract: A method of driving a liquid crystal display device for converting a composite video signal into RGB analog video signals by a chrominance circuit, and controlling the transmittance of each pixel corresponding to each color or red, green and blue on a liquid crystal panel based on the voltage levels of the RGB analog video signals so as to perform color display. The method includes the steps of detecting a color saturation of a picture based on the composite video signal, and controlling the transmittance of a liquid crystal panel based on the transmittance characteristic (T-V curve a) of each pixel relative to normal RGB analog video signals in the case that the color saturation is less than a predetermined value.

Abstract: An LCD projection system, located within a standard color CRT, is used to oject toward the screen decay stimulation patterns that vary dynamically from one frame to the next for each pixel based on the video signals received from external sources. This controls the output light intensity of the phosphors that are excited by a single electron gun. This system eliminates the three-electron-gun configuration of the standard CRT as well as the requirement of a shadow mask. What results is a CRT that is more rugged, easier to manufacture and that produces brighter and sharper images on its screen.

Abstract: A video quality improvement method and apparatus for a television system recovers lost brightness information from the chrominance channels of an encoder due to processing errors, such as quantization roundoff errors, and adds it to the luminance input to the luminance channel of the encoder. Component signals from a video source are input to the encoder. The encoder provides an encoded video output signal as well as reconstructed component signals. From the encoder characteristics the processing errors for the chrominance channels are determined. The partial derivatives for each of the component signals are obtained, and the error in brightness is determined by summing the products of the errors and the corresponding chrominance partial derivatives. The luminance component signal is corrected by dividing the error in brightness by the luminance partial derivative and subtracting the result from the input luminance component signal. The corrected luminance component signal is processed by the encoder.

Abstract: A dual-mode image display apparatus includes a black-and-white image display device and a selective filter. The selective filter is caused to assume a first mode in which it sequentially serves as red, green and blue filters, and a second mode in which it transmits all the color components. Thus, the image display apparatus can selectively perform color display or black-and-white display. The selective filter may include variable optical retarders and may be caused to selectively assume the first mode or the second mode through control over the variable optical retarders. The selective filter may alternatively be moved by a motor between a first position in which the filter is in the path of light from the display device to the viewer, and a second position in which the filter is out of the path of light. A power supply controller is also used to conserve power by turning unneeded parts of a color image processing circuit OFF when the display apparatus is in the second mode.

Abstract: A display apparatus using a matrix display panel, such as a liquid crystal panel, for converting the number of scanning lines to be displayed to a number that can be accommodated on a panel having a smaller number of scanning lines. The apparatus includes a control circuit which produces control signals in synchronism with the input video signal, horizontal and vertical scanning circuits each including a shift register operated by the control circuit, and a display panel which is formed of a matrix arrangement of pixels that are driven selectively by the scanning circuits. The apparatus further includes a circuit which halts the operation of the vertical shift register at a certain interval within the effective scanning period of the vertical scanning circuit so as to extract vertical shift clocks, thereby removing the vertical shift clocks within the effective display period of the video signal, thereby extracting periodically extracting scanning lines.

Abstract: A method for producing a natural color display on a display panel, wherein means for reformatting video signal images for a grey-scale matrix liquid crystal or ferroelectric liquid crystal panel such that frames of image are presented sequentially in time, each frame containing the information of a particular color, and then illuminating said image with the appropriate primary color light. Such images are presented to the viewer at a rate above the color fusion frequency of the eye and thus appear as a full color image.

Abstract: A color display device particularly adapted for use in flat panel applications provides a bright picture with high saturation and excellent color reproduction. The color display device includes a light shutter mechanism which controls the amount of light passing therethrough. Color filters of different colors are disposed adjacent to the light shutter mechanism and include a plurality of color elements. Each color filter has a peak at the transmittance spectrum thereof. A light source illuminates the light shutter mechanism with the light source having peaks in a luminance spectrum adjusted to correspond to the peaks of the transmittance spectrum of each color filter.