Abstract: A projection display device includes a first communication processing section for performing communications over a network; an interface that is connected to a communication device having a second communication processing section with more advanced processing capability than that of the first communication processing section; and a selecting section that selects the first communication processing section or the second communication processing section disposed in the communication device, for use in communications with the network.

Abstract: A video projector including a cooling current discharging structure capable of providing a high-speed cooling current and a low-speed cooling current to an optical component of an optical system serving as a cooling subject. The cooling current discharging structure discharges the high-speed cooling current toward a high-temperature region of the optical component and discharges the low-speed cooling current toward a low-temperature region having a relatively low temperature.

Abstract: A method of operating an AC mercury lamp and DMD (Digital Micromirror Device) in a projection system, comprising receiving a periodic video frame pulse signal, switching the DMD between successive on and off states during each period of the frame pulse signal, wherein each off state results in a dark interval, and driving the lamp with a signal that is synchronized to the video frame pulse signal so as to alternate between a maintenance pulse level during at least a portion of the dark interval and a plateau level during the on state of the DMD.

Abstract: A image distortion correction unit which corrects a distortion of a projected image includes: a switching unit which operates in response to an operation signal from a Keystone remote controller button to switch correction by a trapezoidal distortion correction process and correction by a corner distortion correction process back and forth; a determination unit which determines whether any one of the correction by the trapezoidal distortion correction process and the correction by the corner distortion correction process has been performed; and a prohibition unit which prohibits switching the trapezoidal distortion correction process and the corner distortion correction process back and forth if the determination unit determines that any one of the correction by the trapezoidal distortion correction process and the correction by the corner distortion correction process has been performed and the operation signal is also received from the Keystone remote controller button.

Abstract: A projector control method for a projector in a standby mode is disclosed. The projector is connected to an active video source for image projecting, and the projector comprises at least one input port. The method comprises the follow steps of: connecting electronically the projector and the video source via a video signal cable; detecting whether a defining signal is produced from the input port of the projector, wherein the defining signal is selected from one of the following: a current variation, a voltage variation, an encoded signal, a clock signal, and a synchronous signal; and supplying power to the projector and igniting a lamp when the defining signal is detected, such that the projector enters an active mode.

Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern of scan lines to be illuminated to produce an image of high resolution in color. The direction of scanning of the scan lines is switched between alternate frames, and the resulting image is the superposition of successive frames integrated for viewing by the human eye.

Abstract: In an example embodiment, a calibration module in a projector platform establishes an initial configuration of settable exposure attributes for a digital camera. The calibration module projects a preview image onto a surface and captures the projection of the preview image with the digital camera and receives input from a user identifying regions of interest in the capture of the preview image. Next the calibration module projects an exposure image onto the surface. The calibration module then computes a final configuration of exposure attributes for the digital camera by iteratively: (a) capturing the projection of the exposure image with the digital camera; (b) measuring descriptive statistics relating to the color channels of pixels in the regions of interest in the capture of the exposure image; (c) evaluating the descriptive statistics with an evaluation function determined by a calibration process; and (d) establishing a revised configuration of exposure attributes.

Abstract: A projector is provided which divides and projects a single image onto two different projection surfaces and appropriately performs virtual user interface through one projection surface. The projector projects a VUI screen image on a desk and projects a main projected screen image on a wall. The projector includes a light-receiving element. The light-receiving element is installed at a position that receives light emitted to the desk (the projection surface of the VUI screen image) and reflected (or scattered) by an object in the vicinity of the desk. The projector calculates a position of the object based on a light detection timing of the light-receiving element and a scanning position of light at each time. The projector changes a projected image based on the calculated position. The projector displays a designated region of the VUI screen image (for example, a region including the position of the object or an icon display region or a region surrounding an icon) to be brightened.

Abstract: A scanning assembly (400) for use in a scanning display includes a reflective scanning surface, such as a scanning mirror (412). The reflected scanning surface can be mounted on a scan plate (409). The scanning assembly (400) is configured to pivot about a first axis (403) and a second axis (404) to form an image. To correct parallelogram distortion, the first axis (403) and second axis (404) are non-orthogonal relative to each other. Torsion arms (407,408) facilitating rotation of the scanning mirror (412) along one axis (403) can be oriented non-orthogonally relative to other torsion arms (413,414) by an amount sufficient to correct parallelogram distortion.

Abstract: In an example embodiment, a system for creating a display from multiple projectors receives as an input a source pixel derived from an image to be displayed. The system generates a scalar-adjusted pixel by applying a scalar for an adjustment range to each channel value in the source pixel, where the scalar depends on whether the source pixel is gray or color. The system modifies each channel value in the scalar-adjusted pixel according to a luminance adjustment curve for a projector, where the luminance adjustment curve depends on whether the source pixel is gray or color. The system generates the luminance adjustment curve from captured calibration images by: (1) creating an interpolated response curve; and (2) generating and inverting a median difference curve based on the interpolated response curve for the projector and the interpolated response curves for the other projectors in the system.

Abstract: For displaying a color image by recombination of several single color images, parasitic noise like speckles due to scattering within the system, in particular when laser light is involved, with the invention a significant improvement with a low number of parts can be realized by use of a color wheel that comprises in radially divided zones refractive elements for redirecting light beams incoming at different impinging angles and redistributing elements, e.g. a hologram, that provide for a defined output beam in an optical axis. The sequence of the individual light processing zones on the color wheel are synchronized with respective laser sources. The invention combines the functionality of plural elements, reduces speckles and avoids losses.

Abstract: A video projector including a plurality of light sources used to display an image and a control unit that switches each of the light sources between states of activation and deactivation. The control unit is capable of setting an activation period for each activation of at least one of the light sources.

Abstract: The invention discloses a method for igniting a lamp of a projector. The method includes steps of: (a) sensing a first temperature difference in response to power-off of the projector; (b) in response to power-on of the projector, detecting an aftercooling time and judging whether it is smaller than a predetermined cooling time, if YES, perform step (c); otherwise, perform step (g); (c) sensing a second temperature difference; (d) judging whether a ratio of the second temperature difference to the first temperature difference is larger than a threshold, if YES, perform step (e); otherwise, perform step (g); (e) calculating a re-cooling time; (f) controlling a fan to operate for the re-cooling time to cool the lamp down; and (g) igniting the lamp.

Abstract: A projection surface on which a predetermined projection image is projected is provided; a writing surface on which an image can be drawn directly in a superimposing manner with a projection image displayed on the projection surface is provided; and a photography part photographing an image drawn on the writing surface by means of an image-pickup part comprising two-dimensionally-disposed pixels is provided.

Abstract: Embodiments of the present invention provide a method, apparatus and system for digital cinema color management. In one embodiment, a digital cinema color management system includes a projection device configured to project image content and a color meter configured to measure color levels of the projected image content. A control device is also provided including a validation module configured for validating the measured color levels of the color meter for preventing the creation of erroneous correction data. A calibration module determines if calibration of the color levels is required and provides real-time corrective color information to a projector.

Abstract: A portable telephone device with incorporated projector 10 displays the contents of a received email upon a main liquid crystal display device 204 This portable telephone device with incorporated projector 10 projects the contents of the received email after having changed its vertical-horizontal ratio (its row-column ratio) so that the number of characters in the horizontal direction becomes greater, as compared to the display screen of the main liquid crystal display device 204, upon which the numbers of characters being displayed vertically and horizontally are equal.

Abstract: A stereo projection optical system includes a first polarizing beam splitter, a transmission-type light modulator positioned to receive the first polarized light component from the first polarizing light splitter and an image assimilator positioned to receive an emergent light of the transmission-type light modulator. The image assimilator includes a second polarized light splitter and first, second reflective spatial light modulators. The stereo projection optical systems provide viewers three-dimensional images formed by two alternative polarization light beams whose polarizations are perpendicular to each other utilizing the transmission-type light modulators to form “3-D” images.

Abstract: A rear projection imaging system with an image warping distortion correction system using a camera and processing unit to generate a warping map that corrects for image distortion. The warping map is generated in an iterative process by displaying a known pattern on a viewing screen and, through the use of a camera, having a microprocessor determine the location and shape of the pattern on the screen. The microprocessor then compares the displayed image to the original reference image, calculates the distortion effects present in the projection optics, and generates a warping map.

Abstract: A projector and a system comprising a projector and a handheld device are described. In a preferred embodiment, a projector for projecting an image includes a back section and a front section. The back section has a bottom surface for resting on a supporting surface, and the front section has an optical window for projecting light indicative of the image. The front section is tilted with respect to the bottom surface of the back section to define a tilt angle. The system includes a video-output generating handheld device, and a display device controlled by control signals generated by the handheld device. The handheld device and the display device are interconnected with no more than one physical video signal connection.

Abstract: A projector includes a lamp used as a light source, a lamp driver that drives the lamp by supplying a lamp current to the lamp, and a control unit that controls the lamp current with the lamp driver. The control unit controls the lamp current that is supplied when commencing illumination of the lamp in correspondence with an activation frequency of the lamp.

Abstract: A projection advertising display system which can withstand the environmental conditions of the projection site, allows for remote operation and monitoring and provides for long-term, legitimate projected advertising in or on third-party structures. The digital projection advertising display system comprises a projection surface, such as the exterior side or interior wall of a building, which is covered by a long-term agreement allowing the projection of advertising images on said projection surface, and a projection unit comprising a projector, an environmental control system, a monitoring camera, and a computer. Each of the components of the projection unit is operatively coupled to a computer which controls and monitors the function of each of the components. The computer is networked to a central computer remote from said projection unit and can remotely control and monitor the functions of the projection unit.

Abstract: The LED or Laser projection light has more than one function to get certain purpose which selected from desire group combination including conventional all kind of light device, 2nd or more other projection light with different light source(s) to project light beam or image or digital datas from digital data storage means, desk top light, floor light, garden light, emergency light, safety light, anti/burglar light, under water light, street light, reading light, night light, light fixture, motion sensor light, power fail light, photo sensing light, dimmable light, spot light, seasonal light, Christmas all kind of light and ornament, licensee products, cartoon character related products, promotion light, commercial light, sign, motion sensor light, blue tooth light, moving device, car light, vehicle light, boat light, aircraft light, all different purpose LED light or Laser for all purpose with rechargeable or non-rechargeable energy storage kits with preferred circuit means, switch means, sensor means, timer

Abstract: A projector for showing images displayed by an electronic device includes a projecting unit and a power supply unit. The projecting unit is connected to the electronic device to receive signals from the electronic device and show the images according to the signals. The power supply unit is connected to the projecting unit to supply electric power to the projecting unit. The power supply unit includes a power output connector and outputs electric power through the power output connector.

Abstract: A best blending function from among a plurality of blending functions is determined. Each of the plurality of blending functions smoothes an overlap region of at least two projected images. The overlap image is captured and a processing unit analyzes the stored overlap image for color value linearity to calculate a first smoothness result. The processing unit analyzes the projection of the first or second image for color value uniformity to calculate a second smoothness result. These smoothness results for one blending function are paired and compared to smoothness result pairs corresponding to other blending functions to determine a best blending function from among those being analyzed.

Abstract: An apparatus for serving audiovisual content comprises a parser, a decompression module, a packaging module, and a transmission module. The parser is adapted to receive an image data file and separate the image data file into a first compressed image component and a second compressed image component. The decompression module is coupled to the parser and adapted to decompress the first compressed image component into an uncompressed image component. The packaging module is coupled to the decompression module and adapted to package the uncompressed image component into a data stream having plural data fields arranged in a format defined in accordance with an industry-accepted standard and the second compressed image component into unused ones of said plural data fields, for transmission over a data interface. The transmission module is coupled to the packaging module and adapted to transmit the data stream over the data interface.

Abstract: A scanning projector includes a mirror that scans in two dimensions. The scanning mirror oscillates at a resonant frequency on a fast-scan axis, and is phase locked to an incoming frame rate on a slow-scan axis. An interpolation component interpolates pixel intensity data from adjacent pixels based on the position of the mirror when a pixel clock arrives. Incoming video data is stored in a buffer. Less than a complete frame of video data may be stored in the buffer.

Abstract: A personal computer (PC) includes a main body, a processor received in the main body, and a projecting unit received in the main body and electrically connected to the processor. The PC does not include a built-in display. The processor transmits image signals to the projecting unit, the projecting unit projects images onto a nearby projection surface corresponding to received image signals, so that the nearby projection surface serves as a display of the PC.

Abstract: An image projection apparatus that can perform a wall color correction and an ambient light correction obtains a wall color correction parameter by projecting a calibration image for the wall color correction and then obtains an ambient light correction parameter by projecting a calibration image for the ambient light correction, which has been subjected to the wall color correction using the wall color correction parameter.

Abstract: A portable image projector is disclosed that has a communications module configured to communicate with a host computer to receive image data for at least one image from the host computer, the image being or having been displayed on a monitor of the host computer; a processor operatively connected to the communication module configured to receive and process the image data and to output the processed image data; and an image projection module operatively connected to the processor and configured to receive the processed image data and to project the processes image data as the at least one image using an image projector. A corresponding method is also disclosed.

Abstract: A casing 20 of a mobile phone body is provided with a sub-liquid-crystal display panel 23, a projector lens 26, a light source 35 including an LED. The sub-liquid-crystal display panel 23 and the projector lens 26 are movable between a normal position contained within the casing 20 and a raised position raised from the normal position. The sub-liquid-crystal display panel 23 is fixed at the raised position roughly perpendicularly to the light axis Q between the-sub-liquid-crystal display panel 23 and the light source 35 so that the light axis of the projector lens 26 is substantially aligned with the light axis Q. The illumination light from the light source is set to be parallel rays.

Abstract: To provide a display apparatus which can use a general purpose projector, has a simple structure, and can be manufactured at low cost. The invention is a display apparatus including a hemispherical rear projection screen 1, a projector 2 for projecting an image to be displayed on the rear projection screen 1, and a computer system 3 for creating an image projected from the projector 2 and characterized in that the computer system 3 includes a recording medium for storing image data of a plane image, creation means for correcting the image data stored in the recording medium and creating image data of a curved image, and transmission means for transmitting the image data of the curved image created by the creation means to the projector 2.

Abstract: A projection electronic apparatus is presented. A movable keyboard component is disposed on a host of the electronic apparatus, and a projection component is disposed on the host. When the keyboard component is moved out from the host, a projection ray from the projection component is projected on a screen board outside the host, so as to display a projected screen picture. In addition, the screen board may also be pivoted to the host. When the screen board is opened from the host, the keyboard component is moved out from the host, and the projection ray from the projection component is projected on the screen board, so as to display a screen picture having a maximum scope.

Abstract: Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and address or realize a reduction in price, and a control method for the projection-type display apparatus, as well as a control program for the projection-type display apparatus. The projection-type display apparatus includes a solid-state light source that emits light, a mirror device that controls an emitting direction of the incident light to thereby subject the incident light to temporal modulation, and a projecting device that projects the modulated light.

Abstract: A projection system based on self emitting display panels is described, in which the projection technology involves organic/inorganic electroluminescent display panels with spatially separated color segments. The color pictures are shown in three spatially separate segments. A color combination mechanism, such as dichroic mirrors, are used to merge the three color pictures to a color picture. One of the advantages of the present invention is that only the on state pixel is driven to a bright state that uses energy. The off state pixel need not be driven to a bright state and therefore the energy consumption is virtually nothing. Another advantage is that the system does not require a separate light source and display panel. Therefore the projection system can be made very compact, which is extremely useful for portable projection systems.

Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for sweeping a composite laser beam as a pattern of scan lines on a planar projection surface and for causing selected pixels arranged along each scan line to be illuminated to produce an image, especially in color. The raster pattern extends along mutually orthogonal directions that are generally parallel to mutually orthogonal dimensions of a support of the module. The image is level with the horizontal.

Abstract: A projection image position adjustment method of applying position adjustment to, using two adjustment images, two projection images on a projection surface projected to have an overlay area by two of a plurality of projectors in a multi-projection display. The method includes: a first step of providing, to the two projectors, two adjustment image data respectively corresponding to the two adjustment images each showing a pattern of specific characteristics in the overlay area when the two adjustment images are projected with an appropriate positional relationship; a second step of calculating an evaluation value correlated to the characteristics based on image capture data that is derived by capturing an image of the projection surface with the two adjustment images projected thereon by the two projectors; and a third step of subjecting the two projection images to the position adjustment based on the evaluation values.

Abstract: A projector includes: a first audio input section adapted to input a first sound signal; a second audio input section adapted to input a second sound signal; a first sound amplifier section adapted to amplify the first sound signal received through the second audio input section to generate a first amplified signal; a second sound amplifier section adapted to amplify the second sound signal received through the second audio input section to generate a second amplified signal; a first audio output section adapted to output a first sound based on the first amplified signal; a second audio output section adapted to output a second sound based on the second amplified signal; and a determination section adapted to determine whether or not the first sound signal is being input.

Abstract: A display system is based on a linear array phase modulator and a phase edge discriminator optical system.

Abstract: A color separation/combination prism is disclosed which has an optical film arrangement capable of performing color separation, light analysis and color combination. The prism includes four prism members and at least five optical surfaces as outer surfaces thereof. Each of the prism members has at least three optical surfaces including two optical surfaces which intersect orthogonally with each other at a first side thereof. The four prism members are joined together such that the first sides of the prism members are adjacent to or contact each other. Joining portions of the four prism members are provided with wavelength-selective polarizing films.

Abstract: A projection type stereoscopic display system (and corresponding methodology) is provided. The system comprises a light source, two or more projection chambers, and a switch. The switch receives a plurality of light beams and diverts the beams in a predetermined sequential order to each projection chamber. The projection chamber projects a first image on a first receiving surface and the second image on a second receiving surface parallel with the first receiving surface so that a viewer observes the first and second images simultaneously thereby establishing stereoscopic effects.

Abstract: System and methods for outputting coordinated audio and video presentations are provided. The system includes a plurality of speakers and a display device capable of providing a plurality of projection images. Sound generated by the plurality of speakers is coordinated with the plurality of projection images. The coordination process may be automatically performed according to position change of the plurality of projection images. Sound generated by the plurality of speakers may be further modulated according to position of a user or motion of a video object being displayed in one or more of the plurality of projected images.

Abstract: An illumination apparatus includes a plate-like separation optical element having a dichroic surface and a PBS surface. The dichroic surface reflects green component light and transmits yellow component light. The PBS surface transmits P polarization component light and reflects S polarization component light. The separation optical element combines red component light entering from a certain direction and transmitted through the dichroic surface, with yellow component light entering from a different direction and reflected by the PBS surface, and leads a combined light towards a red liquid crystal panel. The separation optical element combines green component light entering from the certain direction and reflected by the dichroic surface, with yellow component light entering from the different direction and transmitted through the PBS surface, and leads a combined light towards a green liquid crystal panel.

Abstract: An image display device includes: an image reproduction section adapted to reproduce image information recorded on a recording medium mounted; an image display section adapted to display an image corresponding to the image information reproduced by the image reproduction section; a control section adapted to make the image reproduction section start reproduction of the image information if the recording medium is mounted to the image reproduction section; and an authentication section adapted to perform user authentication, wherein the control section inhibits the image reproduction section from reproducing image information until the authentication by the authentication section becomes successful.

Abstract: An image display system includes: a plurality of image supply devices each having an image display section, and an image transmission section adapted to generate a supply image and to externally transmit the supply image; and an image display device capable of dividing a common screen area into one or more screen areas, and of displaying the supply image supplied from each of the image supply devices in the one or more screen areas, wherein each of the image supply devices displays a common screen area operating image to operate a display state of the common screen area in the image display section, and supplies a display image of the image display section to the image display device as the supply image, and the image display device changes the display state of the common screen area in accordance with an operation in each of the image supply devices.

Abstract: A projection video display device 100 includes: a first housing 101 that houses a laser light source 1 and an optical modulation unit 2 that modulates laser light and generates video image light; a second housing 102 that houses a refrigerant circuit 4 to which a compressor, a heat radiator, an expansion valve, and a heat absorber are connected via a refrigerant piping; and air blower portions F2, F3 that send out air in the first housing 101 into the second housing 102 to perform heat exchange with the heat absorber and send out the air that undergoes the heat exchange with the heat absorber into the first housing 101.

Abstract: The present invention is directed to display technologies. More specifically, various embodiments of the present invention provide projection display systems where one or more laser diodes are used as light source for illustrating images. In one set of embodiments, the present invention provides projector systems that utilize blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides projection systems having digital lighting processing engines illuminated by blue and/or green laser devices. In one embodiment, the present invention provides a 3D display system. There are other embodiments as well.

Abstract: An image display system comprises a first liquid crystal projector which projects a counterclockwise-rotating, circularly polarized light beam to form an image containing specific visual information on a screen and a second liquid crystal projector which projects a clockwise-rotating, circularly polarized light beam to form a white image on the same screen. When viewed with the naked eye, a combination of the two images projected on the screen appears totally white. A viewer wearing a dedicated viewing device equipped with an optical filter which allows counterclockwise-rotating, circularly polarized light to pass through can selectively see the image projected by the first liquid crystal projector.

Abstract: One embodiment of a display system includes a first light source that projects a first projected video light to define a first viewable video image, a second light source that projects a second projected video light to define a second viewable video image identical to the first viewable video image wherein the first and second viewable video images together define a displayed video light image, and a controller that fades out projection of the first projected video light and simultaneously fades in projection of the second projected video light such that a light intensity of the displayed video light image remains substantially constant.

Abstract: An integrated photonics module includes at least one light source and a MEMS scanner coupled to and held in alignment by an optical frame configured for mounting to a host system. According to some embodiments, the integrated photonics module may include a plurality of light sources and a beam combiner coupled to the optical frame. According to some embodiments, the integrated photonics module includes a selective fold mirror configured to direct at least a portion of emitted light toward the MEMS scanner in a normal direction and pass scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors.

Abstract: A method includes capturing a first image of a display surface with an image capture device, the display surface having a first plurality of fiducial marks. A first smoothing function is performed on fiducial marks appearing in the first image, thereby generating a first regularized set of fiducial marks having a smooth variation in spacing between adjacent fiducial marks. A first plurality of meshes is generated based on the first regularized set of fiducial marks. The first plurality of meshes is configured to map a first domain associated with the display surface to a second domain associated with the image capture device.