| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 348750000 | Plural parallel light modulators | 74 |
| 20080259224 | Multi-Primary Color Display - Embodiments of the present invention provide a method, apparatus and system of producing a color image using four or more primary colors. The apparatus, according to some demonstrative embodiments of the invention, may include four or more transmissive spatial light modulators to modulate four or more, respective, primary color light beams in accordance with four or more, respective, primary color image components of the color image to produce four or more, respective, modulated light beams; and a beam combiner to combine the four or more modulated light beams into a combined light beam carrying the color image. The beam combiner may include, for example, an X-cube to jointly direct three of the four or more modulated light beams; and a selective color rotator to rotate the polarization of two of the three modulated light beams, while maintaining the polarization of a third one of the three modulated light beams. Other embodiments are described and claimed. | 10-23-2008 |
| 20090086111 | Projection Display Device - In a projection display device which includes a light source for outputting a light and a plurality of light modulating devices for modulating the light from the light source based on an input image signal, the projection display device comprises: a plurality of light quantity adjusting devices disposed on respective incidence sides of the light modulating devices and serving to adjust the quantity of light incident on the respective light modulating devices; and a controller unit for controlling the respective light quantity adjusting devices based on the input image signal. | 04-02-2009 |
| 20090115918 | Oscillating element, manufacturing method of oscillating element, optical scanning device, image forming device and image display device - An oscillating element which can improve the adhesiveness thereof with an actuator is disclosed. In an oscillating element which includes a substrate which is configured to support an oscillation portion in an oscillating manner, and a driving layer which is configured to oscillate the oscillation portion, the driving layer including an adhesive layer formed on a substrate side thereof, an intermediate layer is positioned between the substrate and the driving layer. The intermediate layer is made of a material which allows surface activation bonding with the substrate, and the surface roughness of the intermediate layer on the adhesive layer side is set coarser than the surface roughness of the intermediate layer on the substrate side thus allowing the intermediate layer to easily acquire an anchoring effect with the adhesive layer. | 05-07-2009 |
| 20090147154 | Color display system - An image display apparatus is disclosed in the present invention. The image display apparatus includes a light source emitting an illumination light of at least two colors comprising a first color and a second color, at least two spatial light modulators for receiving and applying an image signal for modulating the illumination light emitted from the light source; and a control circuit for controlling the light source and/or the spatial light modulators to emit the illumination lights of different colors for modulation by the SLM to generate different gray scale characteristics between lights of different colors. | 06-11-2009 |
| 20090153752 | PROJECTOR USING INDEPENDENT MULTIPLE WAVELENGTH LIGHT SOURCES - A digital image projector for increasing brightness includes a first light source; a second light source that is spectrally adjacent to the first light source; a dichroic beamsplitter disposed to direct light of both the first and second light source; a spatial light modulator that receives light from both the first and second light sources; and projection optics for delivering imaging light from the spatial light modulator. | 06-18-2009 |
| 20090161028 | IMAGE SIGNAL PROCESSING APPARATUS, IMAGE SIGNAL PROCESSING METHOD, IMAGE PROJECTING SYSTEM, IMAGE PROJECTING METHOD, AND COMPUTER PROGRAM - An image processing apparatus receives first and second input image signals and generates first and second projection image signals for projecting images from first and second projectors so as to be superimposed on a screen. A storage unit stores, for each projection position on the screen, intensity ratios between projected light from the first and second projectors when viewing from first and second viewing position. An intensity correcting unit adds the first and second input image signals in proportions set for generating the first projection image signal and in proportions set for generating the second projection image signal, according to the stored intensity ratios. The first projection image signal is supplied to the first projector and the second projection image signal is supplied to the second projector. | 06-25-2009 |
| 20090195709 | IMAGE PROJECTION SYSTEM AND METHOD - Provided are an image projection system and method, the image projection system including: a light source for providing illumination light; an illumination optics for receiving and illuminating the illumination light; a Spatial Light Modulator (SLM) having 2 rows of modulation devices formed to be offset from each other, each of the modulation devices modulating the light illuminated from the illumination optics; a frame scanner for scanning the modulated light from the SLM onto a screen to thereby generate a two-dimensional (2D) image corresponding to one frame on the screen; and a projection optics for projecting and focusing the modulated light transmitted from the frame scanner onto the screen. | 08-06-2009 |
| 20090207324 | Circuit for SLM's pixel - The present invention provides a spatial light modulator comprises a plurality of deflectable mirror controllable to deflect from a horizontal state to first and second deflecting directions; an electrode connected to a memory and disposed in the first deflecting direction underneath each of the deflectable mirrors; and an electrode connected to a plate line and disposed in the second deflecting direction underneath each of the deflectable mirrors. | 08-20-2009 |
| 20090207325 | Algorithm for SLM of single hinge type - The present invention provides a spatial light modulator, comprising: a pixel array comprising a plurality of pixel elements; a plurality of word lines each connected to a row of pixel elements; a plurality of plate lines; and a plurality of bit lines each connected to a column of pixel elements, wherein each of the pixel elements further comprises a memory and an electrode connected to the memory, wherein the memory is connected to the word line and the word line is further connected to the plate line. | 08-20-2009 |
| 20090290075 | IMAGE OUTPUT APPARATUS, PROJECTOR, AND METHOD OF CONTROLLING IMAGE OUTPUT APPARATUS - An image output apparatus includes: a display device having a light modulation section which is divided into a plurality of channels; a level adjusting unit that is provided to each of the channels adjusts a level of input signal, and outputs adjusted output signal to corresponding channel; a signal switching unit that switches between a video input signal and a first reference signal as the input signal of the level adjusting unit, for a predetermined period; an adjustment amount correcting unit that compares an output signal from each of the level adjusting units with a second reference signal for the predetermined period and corrects the adjustment amounts of the corresponding level adjusting units on the basis of the comparison results; and a connection state switching unit that outputs a control instruction to the display device to change a state of the channels to an open state for the predetermined period. | 11-26-2009 |
| 20100103332 | IMAGE PROJECTOR DRIVING MULTIPLE DISPLAY SCREENS - Disclosed is a personal portable device that includes a microprojector. The microprojector creates an image for display. The image is sent to a “beam-switching element” that shunts the image toward a selected display screen (e.g., a display screen on the device or an off-device projection). The image is then displayed on the selected screen. By commanding the beam-switching element to change its configuration, different screens can be driven by the same microprojector. The combination of a single microprojector with multiple display screens gives the personal portable device the flexibility of multiple displays while preserving space within the device and, in some embodiments, lowering power consumption. In some embodiments, the microprojector simultaneously drives more than one display screen. The driven display screens may display the same or different images, and the images displayed may be of the same or of different resolutions. | 04-29-2010 |
| 20100110311 | METHOD AND SYSTEM FOR ADJUSTING A PRESENTATION OF IMAGE DATA - A handheld device configured for displaying a modulated image. The handheld device comprises an image generation unit configured for projecting at least one light. The at least one light beam corresponding to image data and allows a presentation of the image data to a user. The handheld device further comprises a user interface configured for receiving at least one instruction for adjusting a display of said image data from the user and a modulation unit configured for modulating the at least one light according to said at least one instruction during the presentation. | 05-06-2010 |
| 20100118213 | PROJECTION DISPLAY DEVICE - A device includes a light source | 05-13-2010 |
| 20100245686 | SYSTEM AND METHOD FOR MODULAR LED ILLUMINATION - The present invention is directed to an illumination system of a video unit. In an exemplary embodiment of the present invention, the illumination system comprises a module comprising a plurality of light emitting diodes (LEDs) adapted to emit light. The illumination system further includes a plurality of lens elements disposed subsequent to the LEDs. The plurality of lens elements is adapted to distribute intensity of the light emitted by the LEDs across an aperture. In addition the intensity of the light at the aperture directly corresponds to the location of the LEDs within the module. | 09-30-2010 |
| 20100253863 | IMAGE DISPLAY APPARATUS - Image display apparatus ( | 10-07-2010 |
| 20130107133 | PROJECTOR SYSTEMS WITH LIGHT BEAM ALIGNMENT | 05-02-2013 |
| 20130258210 | LASER DRIVING CIRCUIT, LASER DRIVING METHOD, PROJECTOR APPARATUS AND APPARATUS WHICH USES LASER LIGHT - Disclosed herein is a laser driving circuit, including: a plurality of laser driving video current generation circuits configured to generate a plurality of kinds of laser driving current for driving a plurality of laser light sources configured to emit laser light having wavelengths different from each other based on an inputted video signal; a high frequency superposition section configured to superpose a high frequency signal having a frequency higher than a frequency band of the video signal on the laser driving current generated by the laser driving video current generation circuits; and a waveform correction section configured to correct a waveform of the high frequency signal. | 10-03-2013 |
| 20140240611 | LASER DRIVING CIRCUIT, LASER DRIVING METHOD, AND DEVICE USING LASER LIGHT - A laser driving circuit, a laser driving method, and a device using laser light that can reduce speckle noise caused by laser light as coherent light are provided. In the laser driving circuit that generates laser driving current for driving a plurality of laser light sources emitting laser light of different wavelengths on the basis of an input video signal, a high-frequency signal of a frequency exceeding the band of the video signal is superimposed on the laser driving current generated on the basis of the input video signal, whereby speckle noise caused by the laser light as coherent light is reduced. | 08-28-2014 |
| 20140347566 | PROJECTOR AND IMAGE DISPLAY METHOD - An image display method implemented in a projector that includes first to third display elements each of which spatially modulates incident light to display an image, synthesizes the images displayed by the first to third display elements, and projects the synthesized image. | 11-27-2014 |
| 20150085198 | Laser Projection System - A device for projecting images from a video generating device such as a computer, television receiver, or similar device onto a screen or other surface is described in this invention. The device uses a rotating disk containing numerous lenses to direct a light beam from a laser or other light source towards the screen. In one embodiment, a pulsed laser light from red, green, and blue lasers are combined into a single light pulse that is transmitted through the rotating disk that transmit each light pulse to a specific location on the screen. | 03-26-2015 |
| 20160044290 | PROJECTOR, COLOR CORRECTION DEVICE, AND PROJECTION METHOD - A light source unit emits a plurality of basic light beams of differing colors and a supplemental light beam of the same color as any of the colors of the plurality of basic light beams. A control unit ( | 02-11-2016 |
| 20160073069 | Laser Diode Voltage Source Controlled by Video Lookahead - A scanning projector includes a programmable voltage source to provide a programmable voltage to a laser light source. A look-ahead circuit determines future voltage requirements by finding peaks in future pixel data. The programmable voltage may change for each frame of video, for each line of video, or multiple times within each line of video. | 03-10-2016 |
| 20160109697 | LIGHT DEFLECTOR, TWO-DIMENSIONAL IMAGE DISPLAY APPARATUS, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - A light deflector is provided including a mirror unit having a light reflection plane, a movable frame to support the mirror unit, a support frame disposed to surround the movable frame, a pair of serpentine beams each disposed between the movable frame and the support frame on both sides of the movable frame to form a turning shape, each of the serpentine beams having one end attached to the support frame, and another end attached to the movable frame, and a vibration damper provided on a portion that moves due to deformation of the serpentine beams caused by application of voltage being transferred | 04-21-2016 |
| 20160112691 | MULTI-SCREEN PROJECTOR SETTING - A projection assembly comprising at least a first screen ( | 04-21-2016 |
| 20160119599 | Multi-Half-Tone Imaging and Dual Modulation Projection/Dual Modulation Laser Projection - Smaller halftone tiles are implemented on a first modulator of a dual modulation projection system. This techniques uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to effectively increase the number of levels provided by a given tile size in the halftone modulator. It addresses the issue of reduced contrast ratio at low light levels for small tile sizes and allows the use of smaller PSFs which reduce halo artifacts in the projected image and may be utilized in 3D projecting and viewing. | 04-28-2016 |
| 348751000 | Liquid crystal | 15 |
| 20080284920 | IMAGE GENERATING APPARATUS - The present invention relates to an image generating apparatus ( | 11-20-2008 |
| 20090027572 | DISPLAY APPARATUS AND DRIVING METHOD OF THE SAME - A display apparatus includes a variable aperture stop device, a control circuit and a user interface. The variable aperture stop device is operable to adjust the lens opening size by opening and closing an aperture. The control circuit is operable to control the opening and closing of the aperture based on an aperture ratio for the brightness distribution of an input signal constituting a screen. The user interface permits to set times necessary for the opening and closing of the aperture. The control circuit controls the opening and closing of the aperture based on times set via the user interface so that the response to the opening and closing of the aperture differs between when the signal changes from dark to light levels and when the level changes from light to dark levels. | 01-29-2009 |
| 20090040397 | Projector with image sensor - A projector includes a projecting module for projecting a projecting image on a screen panel, an image sensor for capturing an image of an object which is located outside of the projecting module and faces toward the lens module, a light director, and a controlling unit. The projecting module has a lens module and a light source for emitting light transmitting through the lens module. The light director is movable between a first position where the light director is located outside of a light path associated with the lens module, and a second position where the light director is configured for directing light of the object through the lens module to be incident on the image sensor. The controlling unit controls the light director to move between the first and second positions. | 02-12-2009 |
| 20090059097 | Image display apparatus - An image display apparatus includes: a light source; a spatial light modulation element modulating light from the light source based on a video signal; light quantity adjustment section adjusting the light quantity of light from the light source based on luminance information in the video signal; image correction section correcting luminance level of the video signal in accordance with light quantity adjustment by the light quantity adjustment section, and supplying a corrected video signal to the spatial light modulation element; and re-adjustment section performing re-adjustment such that a light quantity adjustment target is re-adjusted to a lower value, in a case that a final display luminance level, representing a luminance of the light modulated by the spatial modulation element, is lower than a predetermined first luminance level, where the light quantity adjustment target represents a adjustment target value in the light quantity, employed by the light quantity adjustment section. | 03-05-2009 |
| 20090059098 | Image display apparatus and image processing apparatus - An image display apparatus includes: rate multiplication section multiplying frame rate of input image by 2 | 03-05-2009 |
| 20090141193 | IMAGE DISPLAY APPARATUS - A laser light source | 06-04-2009 |
| 20090161029 | DISPLAY DEVICE - A display device includes a light source and an image generating unit that modulates light from the light source and generates an image. The image generating unit includes a color modulating element that performs color modulation for the light of the light source based on color information separated from image information, a luminance modulating element that performs luminance modulation for the light of the light source based on luminance information separated from the image information, and a relay optical system that relays the light of the light source between the color modulating element and the luminance modulating element. The relay optical system includes a focus adjusting mechanism that images an optical image at one modulating element between the color modulating element and the luminance modulating element on the light incident side of the other modulating element. | 06-25-2009 |
| 20090244405 | LASER PROJECTION DEVICE AND LIQUID CRYSTAL DISPLAY TELEVISION - Disclosed herein is a laser projection device which can keep the colors of red, blue, and green laser beams constant even in high ambient temperature. The laser projection device includes a red laser light source which emits a red laser beam, a temperature sensor for detecting the temperature of the red laser light source, and a radiating unit for radiating heat from the red laser light source to the outside based on the temperature of the red laser light source detected by the temperature sensor. | 10-01-2009 |
| 20090256974 | IMAGE DISPLAY METHOD AND IMAGE DISPLAY DEVICE - Difference values that are defined as values representing a magnitude of an influence exerted upon an illuminance of an ambient environment according to a brightness component of an input video signal and are set so as to correspond to the brightness component based on a result of measuring the magnitude of the influence previously, a plurality of illuminance ranges set by dividing an extent of the illuminance of the ambient environment, and brightness correction characteristic data for correcting the brightness component according to each of the illuminance ranges are stored. The brightness component is detected, so that the difference values are selected based on the detected value (S | 10-15-2009 |
| 20100039571 | TRIANGULAR-WAVE GENERATING CIRCUIT SYNCHRONIZED WITH AN EXTERNAL CIRCUIT - A charge-discharge circuit charges or discharges a capacitor having a fixed electric potential at one end. A first comparator compares an output voltage of the capacitor with a first threshold voltage and outputs a first comparison signal in accordance with a comparison result. An edge detecting circuit detects an edge of a synchronization signal input from the outside and having a frequency of about ½ of a triangular-wave signal generated by the triangular-wave generating circuit, and outputs an edge detection signal that will be at a predetermined level for each of the detected edges. A charge-discharge controller receives the first comparison signal that is output from the first comparator and the edge detection signal that is output from the edge detecting circuit, and switches between a charge state and a discharge state of the charge-discharge circuit in accordance with a level transition of these signals. A voltage of the capacitor is output as a triangular-wave signal | 02-18-2010 |
| 20100214497 | VIDEO PROJECTOR - A video projector for displaying a picture based on a video signal. The video projector includes a first LCD panel for red light, a second LCD panel for green light, and a third LCD panel for blue light. A light source emits light toward the first to third LCD panels. A modulated light computer determines a correction coefficient for reducing the amount of light emitted from the light source toward the first to third LCD panels when temperature load of at least one of the first to third LCD panels increases. An emitted light amount control unit corrects the video signal with the correction coefficient and controls the amount of light emitted from the light source toward the first to third LCD panels. | 08-26-2010 |
| 20100328553 | ELECTROOPTICAL APPARATUS AND ELECTRONIC DEVICE - An electrooptical apparatus includes a plurality of first electrooptical panels which enable a color image to be displayed by combining output lights from the plurality of first electrooptical panels, a polarization axis correction unit through which the output lights from each of the plurality of first electrooptical panels are transmitted and which makes polarization axes of the transmitted output lights aligned, and a polarization axis switching section which switches a polarization axis of the output light from the polarization axis correction unit to a direction intersecting with the direction of the polarization axis at a predetermined timing. | 12-30-2010 |
| 20140267937 | LASER BASED DISPLAY METHOD AND SYSTEM - 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. | 09-18-2014 |
| 20150042895 | VIDEO PROJECTOR SYSTEM - Some embodiments provide for a modular video projector system having a light engine module and an optical engine module. The light engine module can provide narrow-band laser light to the optical engine module which modulates the laser light according to video signals received from a video processing engine. Some embodiments provide for an optical engine module having a sub-pixel generator configured to display video or images at a resolution of at least four times greater than a resolution of modulating elements within the optical engine module. Systems and methods for reducing speckle are presented in conjunction with the modular video projector system. | 02-12-2015 |
| 20160156885 | Image Display Device | 06-02-2016 |
| 348752000 | Using birefringent or polarizing medium (e.g., Kerr cell, Pockel`s cell, etc.) | 1 |
| 20110134344 | DYNAMIC ILLUMINATION CONTROL FOR LASER PROJECTION DISPLAY - A method for improving image contrast for a display apparatus obtains a frame of image data having one or more code values for each pixel in the frame of image data, analyzes the frame of image data to identify a distribution of dark regions therein. The method further adjusts at least one of the one or more code values for the frame of image data according to the distribution of dark regions in the frame of image data and attenuates a brightness level available for the image frame according to the distribution of dark regions in the frame of image data. | 06-09-2011 |
| 20110134344 | DYNAMIC ILLUMINATION CONTROL FOR LASER PROJECTION DISPLAY - A method for improving image contrast for a display apparatus obtains a frame of image data having one or more code values for each pixel in the frame of image data, analyzes the frame of image data to identify a distribution of dark regions therein. The method further adjusts at least one of the one or more code values for the frame of image data according to the distribution of dark regions in the frame of image data and attenuates a brightness level available for the image frame according to the distribution of dark regions in the frame of image data. | 06-09-2011 |
| 348755000 | Deformable medium | 2 |
| 20080225185 | Video Processor Alignment Clamping - A clamping spring ( | 09-18-2008 |
| 20100053477 | Spatial Light Modulator Sub-Pixel Architecture and Method - A semiconductor device comprises an array of individually controllable image pixels arranged in a plurality of reset groups. Each of the image pixels in the array of individually controllable image pixels has a one-to-one correspondence with at least one memory cell in an array of memory cells. The semiconductor device further comprises a plurality of sub-pixel sets, wherein each sub-pixel in the plurality of sub-pixel sets is a micromirror, and wherein each of the image pixels comprises a sub-pixel set. | 03-04-2010 |
| 348756000 | With optical element | 30 |
| 20080225186 | Image display device and display position adjustment system and method - The disclosure is directed to image display devices and display position adjustment systems and methods. In one example, an image display device includes a control unit configured to acquire one or more characteristics of optical images. The control unit is configured to designate, based on the acquired characteristics of the optical images, one of the optical images as a reference image and the remaining number of the optical images as non-reference images. A position change unit moves the non-reference images in accordance with a pixel position of the reference image. | 09-18-2008 |
| 20080284921 | Imaging displaying apparatus and 3-D image displaying apparatus applying the same therein - An image displaying apparatus, comprising: a first light modulator unit, which is configured to modulate a light incident thereon, responding to a first video signal, thereby to form a first image; one or a plural number of second light modulator units, which is/are configured to modulate a light from a light source, responding to a second video signal; and an enlarged image forming unit, being disposed on a light incidence side of the first light modulator unit, upon which a light modulated within the second light modulator unit is projected, enlargedly, thereby to form a second image thereon, wherein upon the first light modulator unit is incident the light of the second image formed on the enlarged image forming unit, and the first image is formed through modulation of the light of the second image responding to the first video signal. | 11-20-2008 |
| 20090033808 | Synchronous control system for light source and spatial light modulator employed in projection apparatus - The present invention provides a display apparatus, comprising: an a light source for emitting illumination light for transmitting along illumination light path; a display device includes a plurality of pixels for modulating the illumination light for reflecting the illumination light along a projection light path after said illumination light is modulated by said display device; light path change actuator for changing the projection light paths; and a control circuit for controlling the light source, wherein the control circuit controls the light source in response to changes of the projection light path. | 02-05-2009 |
| 20090079885 | STEREO PROJECTION OPTICAL SYSTEM - A stereo projection optical system includes an image engine configured for providing light superimposed spatial information, a color selector positioned to receive a light output of the image engine, a transmission-type light modulator positioned to receive an emergent light of the color selector. The color selector is configured for selectively modifying the polarization of the light output according to the wavelength of the light output. The transmission-type light modulator alternates between a dark state and a bright state. From the foregoing, it will be apparent that the stereo projection optical system according to the present invention provides advantages in that its structure can be simplified with the reduction of its size by synthesizing lift and right image signals by displaying the stereoscopic image signal using a single projector. | 03-26-2009 |
| 20090102988 | Projection device provided with semiconductor light source - The present invention provides a projection device comprising a semiconductor light source comprises a plurality of sub light sources arranged in an array, an illumination optical system for guiding an illumination light emitted from the semiconductor light source, a spatial light modulator for receiving and applying an image signal for modulating the illumination light emitted from the semiconductor light source guided by said illumination optical system, a control circuit for controlling the semiconductor light source and the spatial light modulator and a projection optical system for projecting images by applying the illumination light modulated by the spatial light modulator. The control circuit controls or adjusts the emitting state of the semiconductor light source by modifying at least two of following parameters consisted of an emission intensity, a number of times of emission, an emission period and an emitting timing of the sub light source or a number of emitted light and an emitting position of the sub light sources. | 04-23-2009 |
| 20090128716 | PROJECTOR AND METHOD FOR PROJECTING IMAGE - A projector includes: a laser beam generator configured to emit a laser beam according to an image signal; a beam splitter configured to split the laser beam into a first laser beam toward the first projection plane and a second laser beam toward the second projection plane; a scanning unit, disposed between the laser beam generator and the beam splitter, configured to scan the laser beam from the laser beam generator toward the beam splitter; a light receiver configured to receive reflected light of the first laser beam; a computation portion configured to compute positional information indicating a position of an obstacle located in an optical path of the first laser beam based on a light receiving result by the light receiver; and a display control portion configured to change the image signal so that a pointer is displayed in the image based on the positional information. | 05-21-2009 |
| 20090128717 | IMAGE DISPLAY APPARATUS - A laser projector includes a green laser, a two-wavelength laser, a PBS, a collimator lens, a two-axis galvanometer mirror, a group of lenses, and a screen. The green laser emits a green laser beam. The two-wavelength laser emits red and blue laser beams. The PBS is provided at the position where respective optical paths of laser beams emitted from respective lasers cross each other to cause these optical paths to coincide with each other. | 05-21-2009 |
| 20090141194 | Apparatus and method, both for controlling spatial light modulator - An image display apparatus includes: an illumination light source controlled by an illumination light control unit for projecting a first illumination light and a second illumination light; a first SLM for modulating a first illumination light; a second SLM for modulating a second illumination light; and an SLM control unit for controlling the first and second SLMs, wherein the SLM control unit controls the second SLM in accordance with a control process performed by the illumination light control unit during a period when the SLM control unit receives and applies a video image signal for controlling a modulation of the first SLM. | 06-04-2009 |
| 20090185085 | Display device with an addressable movable electrode - A display device implemented with a spatial light modulator (SLM) comprising a plurality of pixel elements arranged in array to modulate incident light and display an image, wherein each of the pixel elements comprises a movable electrode and a stationary electrode; a drive circuit connected to the movable electrode and receives image data for applying a voltage applied to control the movable electrode in accordance with image data, and a voltage application circuit for applying and controlling a voltage applied to the stationary electrode to control a moving speed of the movable electrode. | 07-23-2009 |
| 20090207326 | PROJECTOR - A projector includes a plurality of light modulation elements adapted to modulate a plurality of colored light beams based on image data, a combining optical system adapted to combine the modulated colored light beams to emit image light, and a projection optical system adapted to project the image light emitted from the combining optical system on a projection screen. The light modulation elements are disposed with respect to the combining optical system so that long sides of the respective light modulation elements are adjacent to each other. Signal line cable boards adapted to provide the respective light modulation elements with signals, and coupled to short sides of the respective light modulation elements. A scanning direction of writing the image data to the light modulation elements is set to be parallel to a direction of the short side of an image display area in each of the light modulation elements. | 08-20-2009 |
| 20100091200 | METHOD TO DISPLAY IMAGES USING METAMERISM TO PREVENT ILLEGAL COPY - A method to display images using four or more different primaries having different spectral distributions wherein, in the LMS color space, at least two of these primaries have the same L coordinates and the same M coordinates; thank to the invention, different metamers, when being legally displayed, will be not only perceptually indistinguishable to a viewer with normal color vision but also indistinguishable by most of the viewers with non-normal color vision. | 04-15-2010 |
| 20100097534 | Projection System Using High-Frequency Drive Modulation to Reduce Perceived Speckle - An image producing system ( | 04-22-2010 |
| 20100283921 | Multi-panel color projector using multiple light-emitting diodes as light sources - A color light projector utilizes color light-emitting diodes ( | 11-11-2010 |
| 20100309391 | MULTI-SOURCE PROJECTION-TYPE DISPLAY - A display device capable of displaying a plurality of projection images is provided. The display device includes a light source within a base and a plurality of projection outputs. Each projection output comprises an optical modulation device and a projection lens system. The light source includes a switch and a plurality of light sources such as lasers or LEDs with different color to one another. The switch receives and diverts light beams from the light sources in a predetermined sequential order to the plurality of projection outputs. | 12-09-2010 |
| 20130016287 | DYNAMIC ILLUMINATION CONTROL FOR LASER PROJECTION DISPLAY - A display apparatus includes one or more imaging channels, each imaging channel includes a polarized light source and a spatial light modulator that is actuable to modulate the polarized light and provide a modulated polarized light. A control logic processor is disposed to receive and analyze each frame of image data for the one or more imaging channels. A variable brightness attenuator in the path of the modulated polarized light and actuable under the control of the control logic processor to attenuate the modulated polarized light to one of a plurality of attenuation levels for the one or more imaging channels according to each frame of image data. | 01-17-2013 |
| 20130070167 | OPTICAL SCANNING ELEMENT AND IMAGE DISPLAY DEVICE USING THE SAME - Provided is an optical scanning element that includes mirror unit | 03-21-2013 |
| 20130300948 | VIDEO PROJECTOR SYSTEM - Some embodiments provide for a modular video projector system having a light engine module and an optical engine module. The light engine module can provide narrow-band laser light to the optical engine module which modulates the laser light according to video signals received from a video processing engine. Some embodiments provide for an optical engine module having a sub-pixel generator configured to display video or images at a resolution of at least four times greater than a resolution of modulating elements within the optical engine module. Systems and methods for reducing speckle are presented in conjunction with the modular video projector system. | 11-14-2013 |
| 20160029001 | VIDEO PROJECTOR SYSTEM - Some embodiments provide for a modular video projector system having a light engine module and an optical engine module. The light engine module can provide narrow-band laser light to the optical engine module which modulates the laser light according to video signals received from a video processing engine. Some embodiments provide for an optical engine module having a sub-pixel generator configured to display video or images at a resolution of at least four times greater than a resolution of modulating elements within the optical engine module. Systems and methods for reducing speckle are presented in conjunction with the modular video projector system. | 01-28-2016 |
| 20160112686 | LOCAL DIMMING ON LIGHT-EMITTING SCREENS FOR IMPROVED IMAGE UNIFORMITY IN SCANNING BEAM DISPLAY SYSTEMS - Systems and techniques for scanning-beam display are provided to use local dimming on the optical energy of at least one optical beam to minimize the non-uniform image brightness across the screen. This local dimming during the beam scanning can be achieved by adjusting optical energy of at least one optical beam during the scanning based on (1) the location of the scanning optical beam and (2) the predetermined distortion information at the location. | 04-21-2016 |
| 20160198135 | LIGHT SOURCE APPARATUS AND IMAGE DISPLAY APPARATUS | 07-07-2016 |
| 348757000 | Beam combining | 10 |
| 20080204607 | COLOR IMAGE DISPLAYS - A method of producing an image, comprises the steps of providing a beam of light comprising at least three colours in sequence during a frame period, the beam comprising a pure colour period for each colour and two or more transition periods when the beam of light changes from one colour to the next colour, and of using a modulating device so that temporal subdivisions of the beam of light are either directed to form the image or not used, accepting a image signal input including intensity values ranging from a minimum value to a maximum value for each colour, determining the total intensity of each colour from the summation of the whole of the pure colour period and the respective component from the summation of the transition periods, weighting the range of intensity values of the image signal input to the total intensity for each colour, and causing the modulating device to use the beam of light from all the transition periods when the image signal intensity value corresponds to a value between the whole of the pure colour period and the total intensity period. The length of the transition periods can be longer than the actual time taken for one pure colour to change to the next pure colour, such that the white point for sum of all transitions has the same chromaticity as the white point from normal data. | 08-28-2008 |
| 20080273123 | Laser Picture Formation Device - In a laser picture formation device which forms a vide image by irradiating lights emitted from plural laser light sources ( | 11-06-2008 |
| 20090135313 | Method for projecting colored video image and system thereof - The present invention provides a method for projecting a colored video image, characterized in that a color-light generation device for generating and projecting at least two light fluxes having at least two different colors wherein the different colors are controlled to change in a time division manner; at least two spatial light modulators receiving and applying input video image date for modulating the light fluxes for generating modulated lights from each of the spatial light modulators; an optical device for combining the modulated lights from the spatial light modulators into a combined modulated light and projecting the combined modulated light; and a controller for controlling the color-light generation device and the spatial light modulators, wherein the controller controls and adjusts a ratio of a modulation period of each color synchronized with a change of the colors of the light fluxes in the time division manner. | 05-28-2009 |
| 20090244406 | Projection display device and driving method of the same - A projection display device includes first to third display panels configured to realize first to third color images and a fourth display panel configured to realize a white image. The first to third color images and the white image may be combined and projected. | 10-01-2009 |
| 20100053478 | PROJECTION DISPLAY APPARATUS - A projection display apparatus includes: a red imager; a green imager; a blue imager; a polarization adjusting element; a color combining unit; and a controller. A superimposed component light enters the polarization adjusting element together with the fourth color component light. The polarization adjusting element transmits the superimposed component light, whereas transmitting the fourth color component light by adjusting the polarization of the fourth color component light in accordance with switching between a low voltage applied state and a high voltage applied state. The controller controls re-orienting operation of applying a high voltage to the polarization adjusting element. | 03-04-2010 |
| 20100259693 | MIRROR-BASED LIGHT PATH COMBINATION FOR LIGHT EMITTING DEVICES - Embodiments of the present invention include a method, apparatus, and system for a mirror assembly sequentially optically coupling a plurality of light sources to downstream projection components. Other embodiments may be described and claimed. | 10-14-2010 |
| 20110025930 | Integrated Photonics Module and Devices Using Integrated Photonics Modules - 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. | 02-03-2011 |
| 20110234923 | LIGHTING DEVICE AND PROJECTION TYPE IMAGE DISPLAY APPARATUS USING THE SAME - A lighting device is provided which efficiently achieves a high brightness and a high image quality by using a solid light source which has long service life and does not need mercury. The lighting device includes a first light source section, a second light source section, a second rod integrator for combining lights emitted from the first and second light source sections, and a first rod integrator for guiding the light from the first light source section, to the second rod integrator. On an incident surface of the second rod integrator, a first region on which the light emitted from the first light source section is incident and a second region on which the light emitted from the second light source section is incident do not overlap each other, and the surface area of the first region and the surface area of the second region are different from each other. | 09-29-2011 |
| 20160065921 | MULTI-APERTURE PROJECTION DISPLAY AND SINGLE IMAGE GENERATOR FOR THE SAME - Generating images to be projected at different projection distances with a multi-aperture projection display, statically or without any conversion, neither mechanically nor at the imager, is enabled by designing the single images of the multi-aperture projection display in a suitable manner, namely by combining provisional single images for the projection channels of the multi-aperture projection display, which are intended for each of the at least two images to be projected, projection channel by projection channel, to the actual or final single images. | 03-03-2016 |
| 20170237880 | Multi-Stripes Lasers for Laser Based Projector Displays | 08-17-2017 |
| 348752000 | Using birefringent or polarizing medium (e.g., Kerr cell, Pockels cell, etc.) | 1 |
| 20110134344 | DYNAMIC ILLUMINATION CONTROL FOR LASER PROJECTION DISPLAY - A method for improving image contrast for a display apparatus obtains a frame of image data having one or more code values for each pixel in the frame of image data, analyzes the frame of image data to identify a distribution of dark regions therein. The method further adjusts at least one of the one or more code values for the frame of image data according to the distribution of dark regions in the frame of image data and attenuates a brightness level available for the image frame according to the distribution of dark regions in the frame of image data. | 06-09-2011 |
| 20110134344 | DYNAMIC ILLUMINATION CONTROL FOR LASER PROJECTION DISPLAY - A method for improving image contrast for a display apparatus obtains a frame of image data having one or more code values for each pixel in the frame of image data, analyzes the frame of image data to identify a distribution of dark regions therein. The method further adjusts at least one of the one or more code values for the frame of image data according to the distribution of dark regions in the frame of image data and attenuates a brightness level available for the image frame according to the distribution of dark regions in the frame of image data. | 06-09-2011 |
