WO2012027974A1 - 单投影宽屏投影装置及方法 - Google Patents
单投影宽屏投影装置及方法 Download PDFInfo
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- WO2012027974A1 WO2012027974A1 PCT/CN2011/070423 CN2011070423W WO2012027974A1 WO 2012027974 A1 WO2012027974 A1 WO 2012027974A1 CN 2011070423 W CN2011070423 W CN 2011070423W WO 2012027974 A1 WO2012027974 A1 WO 2012027974A1
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- projection
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- small image
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 244
- 238000012634 optical imaging Methods 0.000 claims abstract description 45
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- 102100039758 Serine/threonine-protein kinase DCLK1 Human genes 0.000 claims description 15
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- 238000005516 engineering process Methods 0.000 abstract description 7
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- 206010010071 Coma Diseases 0.000 description 2
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
- G03B37/04—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/002—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3188—Scale or resolution adjustment
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
- G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0693—Calibration of display systems
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0464—Positioning
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/14—Solving problems related to the presentation of information to be displayed
Definitions
- the present invention relates to the field of projection, and in particular to a single projection widescreen projection apparatus and method. Background art
- the first type of widescreen projection technology is generally composed of a plurality of projection units, each of which includes an illumination optical system, an image display panel, and a projection optical system, and the images projected by each projection unit are spliced, each There is a clear seam between the screens. Although the current technology has made the seams smaller, it still has a certain effect on the overall picture after stitching.
- the second type of widescreen projection technology single projection widescreen, although there is no seam with multi-projection projection, but its image display is limited to 4: 3 or 16:9 or 16:10 aspect ratio, the image display ratio is small Can not meet the modern people's demand for large screen and wide field of vision.
- the technical problem to be solved by the present invention is to provide a single projection widescreen projection apparatus and method which can realize projection of a large screen and a wide field of view in a true sense.
- a technical solution adopted by the present invention is: Providing a single projection widescreen projection apparatus, comprising an image processing system and sequentially arranged in a light passing direction
- An optical non-imaging system providing a light source, an optical imaging system, an optical path switching system, a projection lens that magnifies an image and projected onto the screen
- the image processing system is respectively connected to the optical imaging system and the optical path switching system, and is responsible for
- the image is divided into N frames of small images and transmitted to the optical imaging system, where N is a natural number greater than 1, and a corner signal corresponding to the small image of each frame is output to the optical path switching system
- the optical imaging system is configured to receive N frames of small images.
- the optical path switching system includes a mirror, the mirror is mounted with a rotating electrical machine, and the corner signal is By controlling the rotating motor to drive the mirror to rotate, a small image of each frame is projected onto the screen.
- the optical non-imaging system includes a light source, a shaper, and a collimator that are sequentially disposed.
- the optical imaging system comprises a polarizer, a prism, an image display device and an analyzer which are sequentially disposed in the light passing direction.
- a collimation system is further disposed between the optical imaging system and the optical path switching system, and the collimation system is composed of at least one collimating lens.
- the image processing system further comprises: a conversion IC, which is responsible for converting image signals of different interfaces into RGB pixel digital signals, synchronization signals and control signals; a control IC responsible for converting RGB pixel numbers output by the conversion IC
- the signal is divided into N frames of small images, N is a natural number greater than 1, and a small image of each frame is scanned, and then sent to the image display device of the optical imaging system, and the corresponding corner signal is output while scanning.
- the corner signal corresponding to the small image of each frame further includes: a corner signal of the small image of the first frame drives the mirror to rotate by controlling the rotating motor, so that the angle between the mirror and the optical axis satisfies the angle of the small image projection of the first frame.
- the corner signal of the second image of the small image is controlled by the rotating motor to drive the mirror to rotate, so that the positive angle of the front side of the mirror and the optical axis satisfy the angle of projection of the small image of the second frame, and so on, so that each frame is small The image is projected onto the screen.
- the control IC implements scanning of small images of each frame by controlling RGB, HS, VS, DE, and DCLK.
- a single projection widescreen projection apparatus comprising an image processing system and an optical non-imaging system providing a light source sequentially disposed in a light passing direction, an optical Imaging system, an optical path switching system, a projection lens that magnifies the image and projects it onto the screen;
- the image processing system is coupled to the optical imaging system and the optical path switching system, respectively, and is responsible for dividing the image into N frames of small images for transmission to the optical imaging system, where N is a natural number greater than one.
- the optical imaging system is configured to receive N-frame small image and optical non-imaging system light, and modulate light of the optical non-imaging system After that, an N-frame small image is displayed;
- the optical path switching system includes an N-mirror, and N or N-1 optical switches, and each of the optical switches is respectively connected to a mirror, and the optical switch is used to receive the image processing system.
- the optical switch signal controls the corresponding working state of the mirror that is set at an angle with the optical axis.
- the optical non-imaging system comprises a light source, a shaper and a collimator which are sequentially arranged.
- the optical imaging system comprises a polarizer, a prism, an image display device and an analyzer which are sequentially disposed in the light passing direction.
- a collimation system is further disposed between the optical imaging system and the optical path switching system, and the collimation system is composed of at least one collimating lens.
- the image processing system further comprises: a conversion IC, which is responsible for converting image signals of different interfaces into RGB pixel digital signals, synchronization signals and control signals; a control IC responsible for converting RGB pixel numbers output by the conversion IC
- the signal is divided into N frames of small images, N is a natural number greater than 1, and a small image of each frame is scanned, and then sent to the image display device of the optical imaging system, and the corresponding optical switch signal is output while scanning.
- the optical switch signal controls an optical switch of the N-channel;
- the optical switch signal corresponding to the small image of the first frame causes the first mirror to be in an active state, that is, in a small image projection On the optical path;
- the optical switch signal corresponding to the small image of the second frame closes the first mirror, that is, deviates from the optical path projected by the small image, so that the second mirror is in an active state, that is, on the optical path of the small image projection, and so on.
- the m-1 mirror in front of it is closed, the mth mirror is in operation, m is a natural number less than or equal to N, and the mth mirror will This small image is completely reflected.
- the optical switch signal controls an optical switch of the N-1 way;
- the optical switch signal corresponding to the small image of the first frame causes the first mirror to be in a working state, that is, The light path projected by the small image;
- the optical switch signal corresponding to the small image of the second frame is closed first a mirror, that is, an optical path that is deviated from a small image, so that the second mirror is in an active state, that is, on a light path projected by a small image, and so on; an optical switch signal corresponding to the small image of the mth frame, which is in front of The m -l mirror is closed, the mth mirror is in operation, m is a natural number less than or equal to N, the mth mirror completely reflects the small image; the Nth mirror remains in operation, That is, on the light path of a small image projection.
- the control IC implements scanning of small images of each frame by controlling RGB, HS, VS, DE, and DCLK.
- the number of mirrors of the optical path switching system is greater than or equal to the number of small images after segmentation.
- the optical switch is a mechanical optical switch that relies on the movement of the optical element to change the optical path, or a non-mechanical optical switch that changes the refractive index of the waveguide by an electro-optic effect or a magneto-optic effect or a thermo-optic effect or a thermo-optic effect to change the optical path.
- Another technical solution adopted by the present invention is to provide a single projection widescreen projection method, which is characterized in that it comprises the following steps:
- the converted RGB pixel digital signal is divided into N frames of small images, and N is a natural number greater than 1.
- the scanned N frames small images are respectively transmitted to the image display device;
- the optical path is controlled by the corresponding control signal in step 003, and respectively projected onto the corresponding position of the screen.
- the scanning of the small image in the step 003 is specifically to scan the small image of each frame by controlling the RGB, HS, VS, DE, DCLK of each small image.
- the optical path switching in the step 006 is performed by the control signal by controlling a working state of a mirror that has been set at an angle with the optical axis, the set of mirrors including the same number as the small image.
- the control signal is an optical switch signal, and the optical switch signal corresponding to the small image of the first frame causes the first mirror to be in an active state, that is, on the optical path of the small image projection; the optical switch signal corresponding to the small image of the second frame Closing the first mirror, that is, the light path deviated from the small image projection, the second mirror is in the working state, that is, on the light path of the small image projection; and so on, the optical switch signal corresponding to the small image of the mth frame will
- the front m-1 mirror is closed, the mth mirror is in operation, m is a natural number less than or equal to N, and the mth mirror completely reflects the small image.
- the Nth mirror is always in an active state, that is, it is always on the optical path of the small image projection, and does not receive the optical switch signal.
- the optical path switching in the step 006 is performed by controlling the angle of the control signal to rotate by the mirror.
- the control signal is a rotation signal, and the rotation signal corresponding to each small image corresponds to controlling the rotation of the mirror.
- Angle the positive angle between the front side of the light microscope and the optical axis is the set angle.
- the pre-processing of the step 005 further includes: shaping, collimating, and polarizing the light to obtain the polarized light, and then irradiating the image display device.
- the small image of the step 006 is further processed, and the small image of each frame is subjected to the detection and the collimation.
- the invention has the following advantages:
- the wide-screen projector different from the prior art has the defects of high cost, large volume, and inconvenience to carry around, and the invention has the following advantages:
- the present invention uses a single projection technique to achieve widescreen projection by dividing an image into small images of N frames and then transmitting them to an image display device, and combining the optical switch signals to control the mirrors in the optical path switching, and the screen display ratio exceeds
- the existing level realizing the projection of large screen and wide field of view in the true sense, solves the shortcomings of the existing widescreen projection technology, such as small image display ratio and poor visual effect;
- the invention greatly reduces the product cost, reduces the product volume, realizes the wide screen projection of the micro projector, and solves the problems of high cost and large volume of the wide screen projector, which is not conducive to the wide application and application of the wide screen projector;
- the control IC used in the present invention uses a set of RGB signal transmission modules, which can realize wide-screen projection with a set of signals, and the entire control IC circuit design is simple, and the control IC has a wide selection range, and the existing control IC includes multiple groups.
- FIG. 1 is a schematic structural view of a first embodiment of a single projection widescreen projection apparatus of the present invention
- FIG. 2 is a schematic diagram of a corner signal of the embodiment of FIG.
- FIG. 3 is a schematic structural view of a second embodiment of a single projection widescreen projection apparatus according to the present invention
- FIG. 4 is a schematic diagram of an optical switch signal of the embodiment of FIG.
- FIG. 5 is a schematic structural view of a third embodiment of a single projection widescreen projection apparatus according to the present invention
- FIG. 6 is a schematic diagram of a single projection widescreen projection method of the present invention
- FIG. 7 is a schematic view showing an optical path switching structure of a first embodiment of a single projection widescreen projection method according to the present invention.
- FIG. 8 is a schematic view showing an optical path switching structure of a second embodiment of the single projection widescreen projection method of the present invention.
- FIG. 9 is a schematic view of an image splitting method according to an embodiment of the single projection widescreen projection method of the present invention.
- Figure 10 is a schematic diagram of the image of Figure 9 after being divided into three small images
- Figure 11 is a schematic view of the small image of Figure 10 after being projected onto the screen. detailed description
- the first embodiment of the single projection widescreen projection apparatus of the present invention comprises: an image processing system A1; and an optical non-imaging system A2, an optical imaging system A3, which provides a light source sequentially disposed in the light passing direction, An optical path switching system A5, a projection lens A6 that magnifies the image and projects onto the screen; a collimation system A4 is further disposed between the optical imaging system A3 and the optical path switching system A5.
- the image processing system A1 is respectively connected to the optical imaging system A3 and the optical path switching system A5.
- the image processing system A1 specifically includes a conversion IC All, a control IC A12.
- the conversion IC All converts the image signals of different interfaces into RGB pixels. Digital signal, synchronization signal and control signal.
- the control IC A12 performs frame processing on the image data, and divides into small images of N frames, where N is a natural number and is greater than one.
- by scanning RGB, HS, VS, DE, and DCLK scanning of each small image is performed.
- the corner signal A13 corresponding to each small image is output to the optical path switching system.
- the control IC A12 transmits the N-frame small image to the optical imaging system A3.
- the optical non-imaging system A2 specifically includes: a light source A21, the light source A21 is a conventional light bulb or a led or laser, etc.; a shaper A22 and a collimator A23 respectively shape the light provided by the light source A21. And collimation.
- the optical imaging system A3 is configured to receive N-frame small image and light of the optical non-imaging system A2, and specifically includes an image display device A31, and the image display device A31 is an LCOS (liquid crystal on silicon) board or a DLP ( Digital optical processing) board or LCD, etc.; a prism A32; - polarizer A33; - analyzer A34.
- the light of the optical non-imaging system A2 enters the optical imaging system A3, it passes through the polarizer A33 in turn to obtain polarized light, and then is reflected by the prism A32 and reflected to the image display device A31, and the scanned N frame is small. After the image is transmitted to the image display device A31, it is output through the analyzer A34.
- the collimation system A4 is composed of two collimating lenses such that the light entering by the optical imaging system A3 is parallel light, the energy is concentrated in a predetermined direction, and the light is transmitted to the optical path switching system A5.
- the optical path switching system A5 includes a mirror A51 on which a rotating electrical machine A52 is mounted. As shown in FIG. 2, the optical path switching system further includes: the corner signal of the small image of the first frame is rotated by the rotating motor A52 to control the rotation of the mirror A51, and the angle between the light mirror and the optical axis satisfies the angle of the small image projection of the first frame.
- the small image of the first frame is projected to the position of the screen A
- the corner signal of the small image of the second frame is rotated by the rotating motor A52 to drive the mirror A51 to rotate, so that the front side of the mirror and the optical axis are in a positive angle to satisfy the second frame.
- the angle at which the image is projected, the small image of the second frame is projected to the screen position, and so on, and the small image of each frame is projected onto the screen.
- the projection lens A6 is responsible for magnifying the image and projecting it onto the screen.
- the reflected image needs to be corrected by multiple lenses at the off-axis position, coma, astigmatism and distortion. Referring to FIG. 3 to FIG. 5, a second embodiment of the single projection widescreen projection apparatus of the present invention is described in detail.
- the second embodiment of the single projection widescreen projection apparatus of the present invention includes: an image processing system B1 and an optical non-imaging system B2, an optical imaging system B3, and an optical path switching system, which are sequentially disposed in the light passing direction. B5.
- a collimation system B4 is further disposed between the optical imaging system B3 and the optical path switching system B5.
- the image processing system B1 is connected to the optical imaging system B3 and the optical path switching system B5, respectively.
- the image processing system B1 specifically includes a conversion IC B11, a control IC B12.
- the conversion IC B11 converts the image signals of the different interfaces into RGB pixel digital signals, synchronization signals, and control signals.
- the control IC B12 performs frame processing on the image data, and divides into small images of N frames, where N is a natural number and is greater than one.
- the optical switch signal B13 corresponding to each small image is output to the optical path switching system.
- the control IC B12 transmits the N-frame small image to the optical imaging system B3.
- the optical non-imaging system B2 specifically includes: a light source B21, the light source B21 is a conventional light bulb or a led or laser, etc.; a shaper B22 and a collimator B23 respectively shape the light provided by the light source B21. And collimation.
- the optical imaging system B3 is configured to receive N-frame small image and optical non-imaging system B2, and specifically includes an image display device B31, and the image display device B31 is a DMD (Digital Micromirror Display) plate or LCOS. (liquid crystal on silicon) board or DLP (digital optical processing) board or LCD, etc.; a prism B32; - polarizer B33; - analyzer B34.
- DMD Digital Micromirror Display
- LCOS. liquid crystal on silicon
- DLP digital optical processing
- the collimation system B4 is composed of two collimating lenses, so that the light entering by the optical imaging system B3 is parallel light, and the energy is concentrated in a predetermined direction, and the light is transmitted to the optical path switching system B5.
- the optical path switching system B5 includes a set of mirrors B51.
- the number of mirrors B51 in this embodiment is the same as the number of small images, N is a natural number and is greater than one.
- An optical switch B52 is mounted on the mirror B51, and the optical switch B52 is a mechanical optical switch that changes the optical path by moving the optical element, or changes the waveguide by electro-optic effect or magneto-optical effect or acousto-optic effect or thermo-optic effect.
- a non-mechanical optical switch whose refractive index changes the optical path.
- the Nth mirror is always in operation, that is, it is always on the optical path of the small image projection, and the optical switch is not connected.
- the optical switch signal B13 controls the operating state of the mirror B51 by controlling the operating state of the optical switch B52. Referring to FIG. 4, assuming that the optical switch signal is 1, the optical switch causes the mirror to be on the optical path of the small image projection, the optical switch signal is 0, and the optical switch mirror is offset from the optical path projected by the small image.
- the optical switch signal 11 ⁇ 1 of the first frame causes the first mirror to be in an active state, that is, on the optical path of the small image projection, and the light is projected by the first mirror to reach the defect on the screen;
- the optical switch signal ⁇ turns off the mirror of the first piece, so that the mirror of the second piece is in operation, even if the first mirror is deflected from the optical path projected by the small image, so that the second mirror is in a small image projection On the light path, the light is projected through the second mirror and reaches the point on the screen; and so on, the optical switch signal of the mth (lm nl) slice causes the mirror of the front m-1 to be closed, the mth mirror In the working state, that is, the mirror of the front m-1 piece deviates from the optical path projected by the small image, the m-th mirror is on the optical path of the small image projection, m is a natural number, and the m-th mirror completely reflects the small image The subsequent mirror no longer affects the projection of the
- the projection lens B6 is responsible for magnifying the image and projecting it onto the screen.
- the mirror that is not at the center of the optical axis requires multiple lenses to correct, coma, astigmatism and distortion.
- FIG. 5 is a schematic structural view of a third embodiment of a single projection widescreen projection apparatus according to the present invention.
- the difference from the second embodiment of FIG. 3 is that: in the optical path switching system B5, each of the mirrors B51 is equipped with an optical switch B52, and the optical switch signal B13 corresponding to each small image controls the N path. The working state of the light switch. By setting the angle of each of the mirrors B51 and the optical axis, N small images are sequentially projected to corresponding positions on the screen.
- the single projection widescreen projection method of the present invention will be described in detail.
- the image signal enters from the physical interface and then converts it, converting the image signals of different interfaces into 24-bit RGB pixel digital signals, synchronization signals and control signals.
- the digital image is then segmented into small images of N frames, N being a natural number greater than 1, and by controlling RGB, HS (row sync signal), VS (field sync signal), DE (data enable signal), DCLK (data clock frequency)
- a scanning of a small image for each frame is realized, and a control signal is output while scanning the small image, and the control signal controls the state of the optical path switching.
- Light is supplied from a light source that is shaped, collimated, polarized after being polarized, and illuminated onto the image display panel.
- the scanned small image is transmitted to the image display panel, and after the small image is subjected to the detection and collimation, the optical path switching state controlled according to the control signal is sequentially irradiated to the corresponding position of the screen.
- the optical path switching state controlled according to the control signal is sequentially irradiated to the corresponding position of the screen.
- the optical path switching includes a set of mirrors, and one optical switch 2 is mounted on each of the mirrors.
- the optical switch 2 is a mechanical optical switch that relies on the movement of the optical element to change the optical path, or a non-mechanical optical switch that changes the refractive index of the waveguide by an electro-optic effect or a magneto-optical effect or a thermo-optic effect or a thermo-optic effect to change the optical path.
- the number of the mirrors 1 is greater than or equal to the number of small images, and the control signal is an optical switch signal, and the operating state of the mirror 1 is controlled by controlling the operating state of the optical switch 2.
- the optical switch signal of the first frame causes the first mirror to be in an active state, that is, on the optical path of the small image projection; the second frame optical switch signal closes the mirror of the first sheet, so that the mirror of the second sheet is in operation , that is, the first mirror deviates from the optical path projected by the small image, and the second mirror is on the optical path of the small image projection; and so on, the optical switch signal of the mth slice causes the mirror of the front m-1 to be closed, mth
- the mirror is in an active state, that is, the front m-1 mirror deviates from the optical path projected by the small image, the mth mirror is on the optical path of the small image projection, m is a natural number less than or equal to N, and the mth sheet is reflective
- the mirror behind the mirror does not affect the projection of the small image, which is completely projected onto the screen by the mth mirror.
- the default Nth mirror is always working. By setting the angle of each mirror to the optical axis, N small images are sequentially projected to corresponding positions on the screen.
- the optical path switching includes the installation of the first mirror 1.1.
- An optical switch 2.1, a second mirror 1.2 is mounted with an optical switch 2.2, and a third mirror 1.3 is mounted with an optical switch 2.3.
- the second reflecting mirror sheet is 1.2 K 2
- the optical path switching includes a mirror 3, and the mirror 3 is mounted with a rotating electrical machine 4.
- the control signal is a rotation angle signal, and the rotation angle signal controls the rotation of the mirror 3 by controlling the rotation of the rotary electric machine 4.
- the corner signal controls the rotating motor 4 to rotate the mirror 3 to a corresponding angle, so that the small image of the first frame is projected to the corresponding position of the screen, and the small image of the second frame is transmitted.
- the corner signal again controls the rotating motor 4 to drive the mirror 3 to rotate to a corresponding angle, so that the small image of the second frame is projected to the corresponding position of the screen, and so on, by controlling the rotating motor 4 to drive the mirror 3 to rotate, each frame of Small image, the mirror 3 has a corresponding angle with the optical axis, and the small image of each frame is sequentially projected to the corresponding screen.
- the optical path switching is formed by a mirror which is mounted with a rotating electrical machine.
- 3 2 is the angle between the mirror and the optical axis, corresponding to the first frame small image, the second frame small image, and the third frame small image, respectively.
- Step 1 Split the digital signal of one image into three small images, as shown in Fig. 10.
- Step 2 Control the rotating motor to drive the mirror to rotate by the corner signal, control the angle of the mirror to the optical axis to be 3l , and realize the scanning of the image A content in FIG. 10 by controlling RGB, HS, VS, DE, DCLK, and the scanning is completed. Go to the image display panel and project the angle of the mirror and the optical axis onto the screen, as shown in Figure 1 at position 1.
- Step 3 Control the rotating motor to drive the mirror to rotate by the corner signal, control the angle between the mirror and the optical axis, and control the scanning of the image B content in FIG. 10 by controlling RGB, HS, VS, DE, and DCLK.
- the image B in 10 is projected to the position 2 in Fig. 11, and the image transmission optical path is the same as step 2.
- Step 4 Control the rotating motor to drive the mirror to rotate by the corner signal, control the angle between the mirror and the optical axis, and control the content of the image C in FIG. 10 by controlling RGB, HS, VS, DE, and DCLK. After the scanning is completed, The image C in Fig. 10 is projected to the position of 3 in Fig. 11, and the image transmission optical path is the same as step 2.
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Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/255,790 US20130147865A1 (en) | 2010-08-31 | 2011-01-20 | Single-projection widescreen projecting device and single-projection widescreen projecting method |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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CN2010102680586A CN101943847A (zh) | 2010-08-31 | 2010-08-31 | 一种单投影宽屏投影方法 |
CN201010268767.4 | 2010-08-31 | ||
CN201010268058.6 | 2010-08-31 | ||
CN201010269164.6 | 2010-08-31 | ||
CN 201010268767 CN101943848A (zh) | 2010-08-31 | 2010-08-31 | 一种单投影宽屏投影装置 |
CN 201010269164 CN101943849A (zh) | 2010-08-31 | 2010-08-31 | 单投影宽屏投影装置 |
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WO2012027974A1 true WO2012027974A1 (zh) | 2012-03-08 |
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PCT/CN2011/070423 WO2012027974A1 (zh) | 2010-08-31 | 2011-01-20 | 单投影宽屏投影装置及方法 |
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CN105589202A (zh) | 2016-03-18 | 2016-05-18 | 京东方科技集团股份有限公司 | 一种显示装置、显示方法和显示系统 |
Citations (8)
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US3854802A (en) * | 1972-08-02 | 1974-12-17 | M Gazale | Image recording and projection method and apparatus |
JPH01200774A (ja) * | 1988-02-05 | 1989-08-11 | Canon Inc | 透過原稿投影用スクリーン |
CN1449505A (zh) * | 2000-06-16 | 2003-10-15 | 夏普公司 | 投影型图象显示装置 |
JP2004279847A (ja) * | 2003-03-17 | 2004-10-07 | Ricoh Co Ltd | プロジェクタ |
CN101256281A (zh) * | 2006-07-31 | 2008-09-03 | 视频有限公司 | 超薄显示系统 |
CN101943848A (zh) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | 一种单投影宽屏投影装置 |
CN101943847A (zh) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | 一种单投影宽屏投影方法 |
CN101943849A (zh) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | 单投影宽屏投影装置 |
-
2011
- 2011-01-20 WO PCT/CN2011/070423 patent/WO2012027974A1/zh active Application Filing
- 2011-01-20 US US13/255,790 patent/US20130147865A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US3854802A (en) * | 1972-08-02 | 1974-12-17 | M Gazale | Image recording and projection method and apparatus |
JPH01200774A (ja) * | 1988-02-05 | 1989-08-11 | Canon Inc | 透過原稿投影用スクリーン |
CN1449505A (zh) * | 2000-06-16 | 2003-10-15 | 夏普公司 | 投影型图象显示装置 |
JP2004279847A (ja) * | 2003-03-17 | 2004-10-07 | Ricoh Co Ltd | プロジェクタ |
CN101256281A (zh) * | 2006-07-31 | 2008-09-03 | 视频有限公司 | 超薄显示系统 |
CN101943848A (zh) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | 一种单投影宽屏投影装置 |
CN101943847A (zh) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | 一种单投影宽屏投影方法 |
CN101943849A (zh) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | 单投影宽屏投影装置 |
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