Patent application number | Description | Published |
20080204845 | Micromirror device with a single address electrode - A micromirror device comprises a plurality of mirrors arranged on a substrate, an elastic hinge for supporting each mirror to be deflectable, an address electrode having first and second regions arranged across the deflection axis of each mirror, a driving circuit for controlling a deflection of the mirror, and a stopper provided in a position of making contact with the mirror in a deflected state of the mirror. When the mirror makes contact with the stopper, the potential of the mirror or the stopper changes. | 08-28-2008 |
20080218830 | Micromirror device with a single address electrode - A micromirror device comprises a plurality of mirrors arranged on a substrate, an elastic hinge for supporting any each of the mirrors to be deflectable in a plurality of directions, an electrode arranged to face the mirror, and a driving circuit, which is connected to the mirror via the elastic hinge, for applying to the mirror an address voltage for independently controlling the deflection of the mirror. | 09-11-2008 |
20080218831 | Control methods for micromirror devices implemented with a single address electrode - A method for controlling a micromirror device including mirror elements each composed of a micromirror supported on a substrate by an elastic hinge, and a address electrode arranged across the deflection axis of the micromirror comprises deflecting the micromirror by changing a potential to a predetermined waveform for the address electrode. | 09-11-2008 |
20080231936 | Display system comprising a mirror device with micromirrors controlled to operate in intermediate oscillating state - A display system includes a spatial light modulator for displaying a image by the modulation state of a plurality of micromirrors, and a control device for controlling the spatial light modulator. The control device includes a data conversion device for converting the digital image data into non-binary data, and a modulation-control device for generating a modulation control signal for micromirrors depending on the non-binary data, and controlling the spatial light modulator. The modulation state of the micromirrors by the modulation control signal includes modulation by oscillation of the micromirrors. The modulation control signal controls amplitude of the oscillation to be smaller than the maximum amplitude of the micromirrors in the modulation by the oscillation of the micromirrors. The oscillation having smaller amplitude than the maximum amplitude of the micromirrors is repeated by the modulation control signal in an optional time duration or frequency. | 09-25-2008 |
20080259008 | Deformable micromirror device - A micromirror device, which makes an image display with digital image data, comprises pixel elements each of which makes pulse width modulation for incident light depending on the deflection state of light and which are arranged in the form of a matrix. Each of the pixel elements has a mirror, and at least one memory cell comprising a transistor and a capacitor. In such a micromirror device, the total value of the propagation delay time of a ROW line, which connects all of transistors of memory cells arranged successively in a ROW direction, and the switching time of each transistor is smaller than the driving interval of the ROW line driven in the minimum display duration of the micromirror device. | 10-23-2008 |
20090051712 | Projection apparatus using variable light source - A projection apparatus using a spatial light modulator (SLM), comprising the following: at least one variable light source, at least one spatial light modulator for modulating the illumination light emitted from the variable light source in accordance with the modulation state of arrayed pixel elements, a variable light source controller for controlling modulation of the variable light source, and a spatial light modulator controller for controlling modulation of each pixel element of the spatial light modulator, wherein the variable light source controller controls the variable light source so as to reduce the period in which the modulation states of the pixel element are in transition on a display image. | 02-26-2009 |
20090102828 | Projection apparatus with adjustable light source - A projection apparatus includes a light source for emitting a light including at least two different wavelengths; a light source control circuit for controlling a light source to emit the light as pulse emissions with a pulse modulation control; at least two spatial light modulators each comprises plurality of pixel elements are arranged in an array; a spatial light modulator control circuit for selectively controlling a modulation state of the respective pixel elements in each of the spatial light modulators in accordance with image data corresponding to the respective pixel elements; and the light source control circuit controls the light source so that a starting time of a pulse emission period of the pulse emissions of at least one of the wavelengths emitted from the light source is different from a modulation control timing of the pixel element of the spatial light modulator. | 04-23-2009 |
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 |
20090128462 | Spatial light modulator and mirror device - The present invention provides a spatial light modulator, comprising: a pixel array includes a plurality of pixel units each having a memory. The spatial light modulator further includes bit lines for transmitting a first data signal and a second data signal to the memory of each of the pixel units and a word line connected to a memory for selecting the memory and setting the first or second data signal from the bit line. The spatial light modulator further includes a plate line for transmitting a third data signal, a fourth data signal to the pixel units, and setting a fifth data signal to have a voltage between a voltage of the third data signal and a voltage of the fourth data signal. | 05-21-2009 |
20090128463 | Spatial light modulator implemented with a mirror array device - The present invention discloses a spatial light modulator that includes a plurality of pixel units arranged as a pixel array. Each of the pixel units further comprises memory circuits. The spatial light modulator further includes a first data line for transmitting a first data signal to the memory circuits and a second data line for transmitting a second data signal to the memory circuits. The spatial light modulator further comprises a coupling circuit element for electrically coupling the memory circuits and second data line. | 05-21-2009 |
20090128464 | Mirror array device - The present invention provides a mirror array device, comprising: a plurality of mirror elements configured as two-dimensional array extending along a vertical direction and a horizontal direction on a device substrate. Each of the mirror elements further comprises an address electrode placed on the device substrate. A bit line is connected to for transmitting a first data signal to the address electrode. A first address decoder selects the address electrode. A word line for transmitting a first control signal from the first address decoder for selecting a first selected address electrode from the address electrodes. A second address decoder generates and transmits a second control signal through a plate line for selecting a second selected address electrode from the address electrodes. | 05-21-2009 |
20090128465 | Spatial light modulator implemented with a mirror array device - The present invention provides a spatial light modulator, comprising: a plurality of pixel units configured as a two dimensional array extending in a vertical direction and a horizontal direction; a plurality of row lines each comprises a word line and a plate line connected to a plurality of the pixel units along a row in the horizontal direction; a first address decoder for selecting the word line; a second address decoder for selecting the plate line; and a level retention circuit interconnected between the plate line and second address decoder to retain a voltage level of the plate line. | 05-21-2009 |
20090128588 | Color display system - An image display apparatus is disclosed in this invention. The image display apparatus includes a light source for emitting an illumination light, at least one spatial light modulator for receiving and applying an image signal for modulating illumination light from the light source, and a control circuit for controlling the light source and/or the spatial light modulator to project a modulated light for image display having different gray scale characteristics between at least two successive frames. | 05-21-2009 |
20090128704 | Color sequential illumination for spatial light modulator - The present invention provides a display apparatus, comprising: a light source or light sources for emitting a luminous flux or luminous fluxes having a plurality of colors; a spatial light modulator for modulating the luminous flux(es) having a plurality of colors incoming from the light sources; and controller for processing video image input data, which is input, and controlling the light source(s) and the spatial light modulator, wherein the controller generates a plurality of video image signals of colors constituting a video image based on the video image input data, and controls the light source(s) so as to cause the light source(s) having at least two colors, from among the light source(s) having a plurality of colors, to perform pulse emission in sequence and modulate the pulse emission during a period shorter than a modulation period controlled under the spatial light modulator is with the video image signal of one color from among the video image signals. | 05-21-2009 |
20090128883 | Display apparatus using pulsed light source - The present invention provides a display apparatus, comprising: a light source; at least one spatial light modulator for modulating a luminous flux emitted from the light source; and controller for processing video image information, which is input, and controlling the light source and the spatial light modulator, wherein the controller controls the light source and the spatial light modulator so as to perform pulse emission of the light source during a period shorter than a period in which the spatial light modulator is controlled under a modulation state and also controls the light source so as to modulate the pulse emission during a period shorter than a period in which the spatial light modulator is controlled under a modulation state. | 05-21-2009 |
20090128884 | Spatial light modulator implemented with a mirror array device - The present invention provides a spatial light modulator, comprising: a plurality of row lines each connected to a plurality of memory circuits; and a plurality of word lines and a plurality of plate lines connected to the memory circuits for selecting and controlling sets of the memory circuits connected to the selected row lines at pre-designated times for each of the row lines. | 05-21-2009 |
20090128885 | Spatial light modulator and mirror array device - The present invention provides a spatial light modulator, comprising: a plurality of mirror elements; a plurality of address electrodes for controlling the movement of each of the mirror elements; and first and second control circuits for generating a voltage in the address electrode, wherein the second control circuit applies a voltage to the address electrode when the mirror element is in a moving state. | 05-21-2009 |
20090128887 | Spatial light modulator and mirror array device - The present invention provides a spatial light modulator, comprising: a pixel array comprising a plurality of pixel units. Each of the pixel units further comprises memory cell. A plurality of bit lines and a plurality of word lines for electrically communicating with the pixel units. A plurality of plate lines, wherein the plate line is connected to at least some of the memory cells connected to one of the word lines of the pixel array. | 05-21-2009 |
20090128890 | Spatial light modulator and mirror array device - The present invention provides a spatial light modulator, comprising: a pixel array comprises a plurality of pixel units. Each of the pixel units comprises a memory cell. A plurality of word lines and a plurality of plate lines to electrically communicate with the pixel units. A plurality of bit line sets wherein each of the sets includes a pair of bit lines each connected to a memory cell, wherein at least one pair of the memory cells connected to the pair of bit lines are on a same row connected to a same word line. | 05-21-2009 |
20090135315 | Diplay apparatus using pulsed light source - The present invention provides a display apparatus, comprising: a light source; at least one spatial light modulator for modulating a luminous flux emitted from the light source; and a controller for processing inputted video image information and for controlling the light source and spatial light modulator, wherein the controller controls the light source and spatial light modulator so that the light source performs pulse emission for a period shorter than a period in which the spatial light modulator is controlled under a modulation state. | 05-28-2009 |
20090147033 | COLOR DISPLAY SYSTEM - An image display apparatus for displaying images includes a light source for emitting an illumination light with an adjustable light intensity, at least one spatial light modulator (SLM) for receiving and applying an image signal for modulating the illumination light transmitted from the light source, and a control circuit for controlling the light source and/or the spatial light modulator to project modulated lights for image display having different dynamic ranges of the brightnesses between at least two successive frames. | 06-11-2009 |
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 |
20090161077 | PROJECTION DISPLAY SYSTEM FOR MODULATING LIGHT BEAMS FROM PLURAL LASER LIGHT SOURCES - The present invention provides a projection display system comprising: illumination lights of plural colors emitted from plural laser light sources; an illumination optical system for illuminating the illumination light of at least one of the colors in an beam axis or in an illumination range, either of which is different from the other colors; a deflection mirror device for modulating the illumination lights of respective colors in the same deflection angle, with the modulation of each color being performed in sequence within one frame; a projection optical system for projecting the reflection light of the illumination light from the deflection mirror device; and a laser light source control circuit for controlling the intensity of the illumination light of each color, wherein the laser light source control circuit performs adjustment so that the ratio of intensity of each of the colors is a prescribed ratio. | 06-25-2009 |
20090161193 | Projection display system for modulating light beams from plural laser light sources - The present invention provides a projection display system, comprising: plural laser light sources; an illumination optical system for illuminating, in different beam axes, light beams emitted from the individual laser light sources; a deflection mirror device, constituted by plural mirror elements, for modulating the light beams illuminated by the illumination optical system; and a projection optical system for projecting a reflection light from the deflection mirror device illuminated by the light beams. | 06-25-2009 |
20090174926 | Micromirror device with a single address electrode - A micromirror device comprises a plurality of mirrors arranged on a substrate, an elastic hinge for supporting each mirror to be deflectable in a plurality of directions, an address electrode composed of first and second regions that are arranged across the deflection axis of each mirror, and a driving circuit for controlling the mirror to deflect in the directions of the first and the second regions. | 07-09-2009 |
20090179837 | Display system comprising a mirror device with micromirrors controlled to operate in intermediate oscillating state - A display system includes a spatial light modulator for displaying an image by the modulation state of a plurality of micromirrors, and a control device for controlling the spatial light modulator. The control device includes a data conversion device for converting all or a part of the digital image data input to the display system into non-binary data, and a modulation-control device for generating a modulation control signal for micromirrors depending on the non-binary data, and a modulation-control device for controlling the spatial light modulator. The modulation state of the micromirrors by the modulation control signal includes modulation by oscillation of the micromirrors. The modulation-control device controls a voltage value of the modulation control signal to be applied to the driving electrode of the micromirror such that the amplitude of the oscillation can be smaller than the maximum amplitude of the micromirrors in the modulation by the oscillation of the micromirrors. | 07-16-2009 |
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 |
20090201236 | Deformable micromirror device - A micromirror device, which makes an image display with digital image data, comprises pixel elements each of which makes pulse width modulation (PWM) for incident light depending on the deflection state of light and which are arranged in the form of a matrix. Each of the pixel elements has a mirror, at least one memory cell comprising a transistor and a capacitor, and an electrode connected to each transistor. Memory cells arranged successively in a ROW direction are connected by a ROW line. The image data is loaded at a time interval during which the voltage of the electrode can hold the deflection state of a pixel element. | 08-13-2009 |
20090201418 | Video display system - A video display system includes an image processing unit receives continuously an input video signal including input frame signals for generating an output video signal including output frame signals having a higher frame rate than the input frame signals; and a display unit for displaying a video image in accordance with the output frame signals , wherein each of the input frame signals has 2̂M gray scale levels for each pixel, the image processing unit further generates the output frame signals including at least a first output frame signal having 2̂N gray scale levels with N̂M for each pixel and a second output frame signal having [2̂M-2̂N] or fewer gray scale levels for each pixel. | 08-13-2009 |
20090207164 | Mirror control within time slot for SLM - The present invention provides a spatial light modulator, comprising: a plurality of pixel elements; a first control circuit for supplying control signal data to each of the pixel elements in a time slot having a predetermined time interval to control and apply a first control process to operate the pixel element; and a second control circuit for applying a second control process in the time slot to operate each of the pixel elements wherein the second control process is different from the first control process. | 08-20-2009 |
20090231496 | Display control system for spatial light modulators - A display control system, comprises: a spatial light modulator (SLM) constituted by a plurality of pixel elements placed in array; a first control unit for controlling each of the plurality of pixel elements under a state of ON or OFF; a second control unit for controlling each of the plurality of pixel elements under a state other than the ON or OFF states; a control changeover unit for dividing one frame period, for each pixel element of the plurality thereof, into a period of the first control unit controlling and that of the second control unit controlling, and also changing over between a control of the first control unit and that of the second control unit for each pixel element of the plurality thereof; and a data division unit for dividing input data to each of the plurality of pixel elements into first control unit-use data, which is input to the first control unit, and second control unit-use data which is input to the second control unit in accordance with the content of the present input data. | 09-17-2009 |