CN105527789A - Projection display method and system - Google Patents
Projection display method and system Download PDFInfo
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- CN105527789A CN105527789A CN201610110142.2A CN201610110142A CN105527789A CN 105527789 A CN105527789 A CN 105527789A CN 201610110142 A CN201610110142 A CN 201610110142A CN 105527789 A CN105527789 A CN 105527789A
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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
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
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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
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
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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
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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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]
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a projection display method and a projection display system. The projection display method comprises the steps that: a first angle light beam and a second angle light beam are output through alternating light sources, so that the light beams of different light sources illuminate different display images, and are modulated corresponding to content of the different display images; and the modulated light beams at different angles form images to be output in sequence, and a first projection image and a second projection image are formed. According to the projection display method and the projection display system, a complete image is formed by the first projection image and the second projection image by utilizing the persistence effect of human vision, thus a large-size image can be displayed by utilizing one set of projection display equipment, the control is simple, and the cost is low.
Description
Technical field
The present invention relates to projection display technique field, particularly relate to a kind of method for displaying projection and system.
Background technology
Projection display apparatus generally includes light source, ray machine and camera lens, and wherein light source provides illumination for ray machine, and traditional light source comprises mercury lamp, LED light source, and the LASER Light Source of rising at present.
The core component of ray machine is Digital Micromirror Device (DigitalMicromirroredDevice, DMD), is a kind of spatial light modulator of total digitalization, utilizes high-speed switch speed and pulse-length modulation to produce accurate color of image and gray-scale Control.DMD surface has been covered with two-dimensional array, and each micromirror is equivalent to a pixel in projected picture, and each micromirror can free deflection, and micromirror deflects different deflection angles, will present different states.Therefore, controlled the reflection of light by the deflection angle of each micromirror, and then realize the real-time display of image.
Camera lens receives the light of ray machine DMD reflection, projects projection medium by a composition as eyeglass, display projected image.
When realizing large scale projection, normally spliced by multiple stage projector equipment, as shown in Figure 1, and synchro control realizes the display of multi-picture splicing.But the projector equipment in such scheme is more, cost is high on the one hand, needs the consistance taking into account display parameter and synchro control between different projector equipment on the other hand, controls relative complex.
Summary of the invention
Embodiments provide a kind of method for displaying projection and system, the tiled display of projected picture can be realized by a projector equipment, solve in prior art and control complexity in tiled display picture process, the technical matters that cost is high.
The object of the invention is achieved through the following technical solutions:
First, embodiment of the present invention scheme provides a kind of method for displaying projection,
Receive the first angle light beam that light source sends;
According to the first image content, described first angle light beam is modulated;
The first angle beam projection after modulation is formed the first projected image;
Receive the second angle light beam that light source sends, wherein, described first angle light beam and the second angle light beam alternately send;
According to the second image content, described second angle light beam is modulated;
The second angle beam projection after modulation is formed the second projected image;
Wherein, described first projected image and described second projected image are spliced to form a width complete image.
And embodiment of the present invention scheme additionally provides a kind of projection display system, comprising: light source, ray machine and camera lens, wherein,
Described light source, for alternately sending the first angle light beam and the second angle light beam, for described ray machine provides illumination;
Described ray machine, for receiving described first angle light beam and the second angle light beam, and modulates the first angle light beam and the second angle according to the first picture and the second image content respectively;
Described camera lens, the first projected image and the second projected image is formed for respectively the first angle light beam after modulation and the second angle light beam being projected to projection screen, wherein, described first projected image and described second projected image are spliced to form a width complete image.
The embodiment of the present invention at least has the following advantages and beneficial effect:
The method for displaying projection that embodiment of the present invention technical scheme provides and system, the change of angle is exported by light source, alternately output first angle light beam and the second angle light beam, the light beam of light source of different angles is made to provide illumination for different display frame, and corresponding different display frame contents is modulated, finally imaging exports successively.Adjoint first angle and the second angle are alternately, first projected image and the second projected image alternately export, human eye vision is utilized to persist, first projected image and the second projected image form a complete picture, and along segmentation direction, the size of projected image obtains multiplication, thus utilize a projection display apparatus can realize the display of large-size images, in such scheme, the consistance to change and the picture of beam angle export only is needed to carry out synchronously, controlling easy.
Accompanying drawing explanation
A kind of large scale projection display system structural representation that Fig. 1 provides for prior art;
A kind of method for displaying projection process flow diagram that Fig. 2 provides for the embodiment of the present invention one;
The structural representation of a kind of projection display system that Fig. 3 provides for the embodiment of the present invention;
A kind of structural representation of light source in the projection display system that Fig. 4 A provides for the embodiment of the present invention;
The structural representation of another light source in the projection display system that Fig. 4 B provides for the embodiment of the present invention;
The structural representation of ray machine in the projection display system that Fig. 5 provides for the embodiment of the present invention;
The structural representation of camera lens in the projection display system that Fig. 6 provides for the embodiment of the present invention;
The incident light that Fig. 7 (a), 7 (b), 7 (c) are respectively the embodiment of the present invention to be provided is in the reflection ray schematic diagram of three kinds of different conditions in DMD micromirror;
Another projection display system structural representation that Fig. 8 provides for the embodiment of the present invention;
The configuration diagram of another projection display system that Fig. 9 provides for the embodiment of the present invention;
The configuration diagram of another projection display system that Figure 10 provides for the embodiment of the present invention.
Embodiment
The advantage of the embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
Embodiment one
As shown in Figure 1, embodiments provide a kind of projected picture display packing,
Step S1: receive the first angle light beam that light source sends;
Light source can be LASER Light Source, also can be LED light source.Be preferably LASER Light Source, brightness is high, and colour gamut is good.
Step S2: described first angle light beam is modulated according to the first image content.
Before step S2, also comprise width image to be displayed segmentation formation first picture and second picture,
Wherein, the first picture and the concrete partitioning scheme of the second picture are such as left and right segmentation, or split up and down.
First angle light beam corresponds to the first picture and provides illumination, and according to the first image content, and the light quantity of RGB in the light beam of the particularly GTG RGB component value determination actual needs of each pixel, to form coloured image.
The process of concrete modulation is: generate first drive singal corresponding with described first image content according to the first image content, this drive singal is for controlling the DMD in ray machine, digital micromirror array, aforementionedly to mention, DMD realizes the reflection to different colours light by the upset of multiple small eyeglass different angles, make the light of different light quantity enter in camera lens, therefore this drive singal is the control signal controlling each small eyeglass flip angle and sequential.According to the first drive singal, the first angle light beam is reflected, form the reflection ray corresponding with the pixel of the first image content.Namely, according to the color of each pixel of picture, form the light quantity corresponding with image grey decision-making to be shown to the light of different RGB three primary colours respectively, these reflection rays finally enter camera lens.
Step S3: the first angle beam projection after modulation is formed the first projected image;
The reflection ray of corresponding first image content is reflected in lens imaging assembly by DMD, and project projection screen or other projection medium on form the first projected image.
Step S4: receive the second angle light beam that light source sends, wherein, described first angle light beam and the second angle light beam alternately send;
By the change to light beam of light source, make formation first angle light beam and the second angle light beam, and alternately, periodically send.Similar step S1, the second angle light beam will be used for showing the display lighting of the second picture below.
Step S5: described second angle light beam is modulated according to the second image content;
Similar step S2, the second angle light beam corresponds to the second picture and provides illumination, and according to the first image content, and the light quantity of each color of RGB in the light beam of the particularly GTG RGB component value determination actual needs of each pixel, to form coloured image.
The process of concrete modulation is: generate first drive singal corresponding with described second image content according to the second image content, this drive singal is for controlling the DMD in ray machine, digital micromirror array, aforementionedly to mention, DMD realizes the reflection to different colours light by the upset of multiple small eyeglass different angles, make the light of different light quantity enter in camera lens, therefore this drive singal is the control signal controlling each small eyeglass flip angle and sequential.According to the second drive singal, the second angle light beam is reflected, form the reflection ray corresponding with the pixel of the second image content.Namely, according to the color of each pixel of picture, form the light quantity corresponding with image grey decision-making to be shown to the light of different RGB three primary colours respectively, these reflection rays finally enter camera lens.
Step S6: the second angle beam projection after modulation is formed the second projected image; Wherein, the first projected image and the second projected image are spliced to form a width complete image.
First projected image and the second projected image alternating projection on projection screen, and project to different regions, utilize human eye vision to persist, and form a complete large-sized picture.
In the above-described embodiments, because the micro mirror array in DMD overturns in positive and negative 12 ° of scopes, in order to ensure that-12 ° of degree reflection rays of front light beam can not have influence on+12 ° of reflection rays of rear light beam, and the reflection ray of+12 ° for enter camera lens effective imaging needed for light, angle between first angle light beam and the second angle light beam is not equal to 48 degree, preferably, be less than 48 degree, be namely less than the field angle scope of the DMD of 2 times.
The method for displaying projection that the embodiment of the present invention one provides, the change of angle is exported by light source, alternately output first angle light beam and the second angle light beam, the light beam of light source of different angles is made to provide illumination for different display frame, and corresponding different display frame contents is modulated, finally imaging exports successively.Adjoint first angle and the second angle are alternately, first projected image and the second projected image alternately export, human eye vision is utilized to persist, first projected image and the second projected image form a complete picture, and along segmentation direction, the size of projected image obtains multiplication, thus utilize a projection display apparatus can realize the display of large-size images, in such scheme, the consistance to change and the picture of beam angle export only is needed to carry out synchronously, controlling easy.
Simultaneously, owing to passing through width image to be displayed segmentation formation first picture and second picture, and the first picture and the second picture are all shown by the resolution of corresponding DMD, thus the resolution of a width complete picture on segmentation direction have also been obtained lifting, such as DMD is the resolution of 4K × 2K, can be understood as, this DMD has 4K × 2K small eyeglass, and each little eyeglass correspond to a pixel in image.Be 4K × 2K by the image frame resolution of existing single DMD optical projection system imaging, and the image frame resolution of the projection display system imaging provided by the embodiment of the present invention, when left and right is spliced, image frame resolution just becomes 8K × 2K, when splicing up and down, image frame resolution just becomes 4K × 4K, and namely the image frame resolution of unidirectional dimension is improved.
Embodiment two
The embodiment of the present invention two provides a kind of projected picture display system, as shown in Figure 3, comprises, light source 1, ray machine 2, camera lens 3.Wherein, light source 1, for alternately sending the first angle light beam and the second angle light beam, for ray machine 2 provides illumination.Ray machine 2, for receiving the first angle light beam and the second angle light beam, and modulates the first angle light beam and the second angle according to the first picture and the second image content respectively.Camera lens 3, form the first projected image and the second projected image for respectively the first angle light beam after modulation and the second angle light beam being projected to projection screen, wherein, the first projected image and the second projected image are spliced to form a width complete image.
The image-forming principle of all projection display systems provided by the embodiment of the present invention is all identical below, and the image-forming principle of the projection display system that the embodiment of the present invention provides is described with the imaging of piece image below, and its image-forming principle comprises:
First piece image to be shown is divided into two parts image, according to a kind of angle source light irradiating DMD, the corresponding display of a parts of images and an imaging region of display screen, utilize the source light of different angles alternately for DMD provides illumination, by same DMD timesharing, each needing each parts of images of image of display to image in display screen is determined imaging region, by the image construction one width complete image of each imaging region.
Below in conjunction with accompanying drawing, the embodiment of the present invention two is described.
In the present embodiment, light source 1 can be LASER Light Source, LED light source.
As shown in Figure 4 A, light source 1 is LASER Light Source, and by arranging rotating catoptron in the optical path, light source continues to light, and by the rotation of catoptron, forms the emergent ray of different angles, thus forms the first angle light beam and the second angle light beam.Particularly, when light source 1 comprises a light source 11, light source 11 can be laser instrument and fluorescent wheel and multiple optical mirror slip composition, and the hybrid light source be made up of laser and fluorescence also can be pure LASER Light Source.The catoptron 13 that can rotate chronologically is set in light source 11 light path, and when catoptron 13 has the first rotary angle position and the second rotary angle position; Light source 16 continues to light, and corresponding first rotary angle position and the second rotary angle position export the light of the first angle and the light of the second angle, represent the light beam of the catoptron reflection of the second rotary angle position with dotted arrow in Fig. 4 A, certainly, in the case, this light source 1 also can comprise light source control device (not shown); Light source control device, for receiving the synchronous control signal that ray machine 2 sends, according to this synchronous control signal, controlling catoptron 13 and rotating chronologically, thus laying respectively at the first rotary angle position or the second rotary angle position.
Certainly, also can as shown in Figure 4 B, light source 1 is made up of the sub-light source of two angled settings, comprises the first light source 11, secondary light source 12, two sub-light source timesharing are lighted, thus also can replace, periodically exports the first angle light beam and the second angle light beam.Preferably, as shown in Figure 4 B, light source 1 also comprises light source control device 12.Wherein, the first light source 11 is angularly arranged with secondary light source 12; Light source control device 12, for receiving the synchronous control signal that ray machine sends, according to this synchronous control signal, control the first light source 11 or secondary light source 12 is lighted chronologically, respectively with the first angle and the second angle, alternately emit beam as rear end ray machine 2 provides illumination.
In specifically implementing one, light source 1 comprises laser instrument, fluorescent wheel, the light path of filter wheel and multi-disc lens and catoptron eyeglass composition, and light beam of light source is eventually through the higher RGB three primary colours of filter wheel timing output purity or RGBY four primary.
Ray machine 2, as shown in Figure 5, comprises DMD digital micromirror array 21, DMD driving chip 22, and wherein, DMD receives the light beam of the different angles of light source outgoing, and determines the light quantity of reflection by the flip angle that multiple small eyeglass is different; Ray machine 2 also comprises signal processing system 23, signal processing system 23 is for being undertaken splitting to multiple parts of images by a width image to be displayed, in the present embodiment, concrete segmentation formation first picture and the second picture, first picture and the second picture can be split based on the left-right parts of image to be displayed, also can be top and the bottom segmentations.
When the first picture and the second picture are top and the bottom segmentation, then the first angle light beam and the second angular light harness have the angle of vertical direction, when the first picture and the second picture are left-right parts segmentation, then the first angle light beam and the second angular light harness have the angle of horizontal direction.
DMD driving chip generates corresponding drive singal according to the first picture and the second picture content signal, generally, just convert flip angle and the clock signal of each little eyeglass of DMD to from the pixel gray level value signal of image, DMD is controlled by above-mentioned drive singal and overturns.
Sync control device 24, for generating synchronous control signal, and sends to signal processing system and light source respectively by this synchronous control signal; Wherein, synchronous control signal, for the upset sequential of synchro control light source incidence sequential and DMD, particularly, control the sequential that the light that sends of light source irradiates described DMD, each several part image i.e. the first picture or the second picture signal exported to the timing synchronization of DMD with signal processing system.
It should be noted that, synchronous control signal can also generate in other way, and such as, a certain system that can be realized again the function of sync control device by the function that can realize signal processing system generates.The generating mode of the embodiment of the present invention not limits synchronization control signal, as long as can ensure that can export each parts of images of the image needing display to camera lens by same DMD timesharing carry out imaging.
Camera lens 3, as shown in Figure 6, comprises optics and closes optical element 31 and a projection lens 32.Wherein, optics closes optical element 31, for the reflection ray that each pixel changing the first picture that DMD21 sends is corresponding, and/or the direction of reflection ray corresponding to each pixel of the second picture of sending of DMD21, make it the parallel zones of different inciding projection lens 32; And, due to the first angle light beam after DMD21 modulation and the second angle light beam be incident to optics close the angle of optical element 31 or position variant, optics closes optical element 31 and even optical element can also be selected to enter the light of projection lens 32 with homogenize, the first projected image that final projection is formed and the brightness uniformity of the second projected image.
Described projection lens 32, for the corresponding relation according to angle imaging region, the reflection ray that each pixel of the first picture sent by the described DMD21 after closing optical element 31 through optics is corresponding, the first projected image is formed at the first imaging region of display screen, and, according to the corresponding relation of angle imaging region, the reflection ray that each pixel of the second picture sent by the DMD21 after closing optical element 31 through optics is corresponding, the second projected image is formed in the second imaging region imaging of display screen, namely, first projected image and the second projected image are the zoness of different being incident upon projection screen respectively, and, first projected image and the second projected image are spliced to form a width complete image.
Below in conjunction with a concrete projection display system implemented the detailed description embodiment of the present invention two and provide.
As shown in Figure 8, wherein, light source 1, for receiving the synchronous control signal that sync control device 24 sends, according to the clock signal of this synchronous control signal, emitting beam irradiate DMD21 with the first angle and the second angle, alternately.
In ray machine 2, sync control device 24, for generating synchronous control signal, and sends to signal processing system 22 and light source 1 respectively by this synchronous control signal; Wherein, synchronous control signal, for the corresponding relation according to angular image, controls the sequential that the light that sends of light source 1 irradiates DMD21, each several part image is exported to the timing synchronization of DMD21 with signal processing system 22; Wherein, the corresponding relation of angular image is: the first angle source light, the display of corresponding first picture, the second angle source light, the display of corresponding second picture.
Image to be displayed is divided into the first picture and the second picture by signal processing system 22 in advance, and the parts of images signal that sync control device generates according to signal processing system, in this step, i.e. the first picture signal, what export that the first picture shows the first synchronous angle light beam lights signal.The same said process of the way of output of the second picture signal and the second angle light beam.
DMD21 is according to the first angle source light and the output timing of the second angle source light and the corresponding relation of angular image, for receiving the first angle source light, and the first picture signal that signal processing system 22 sends, and form the drive singal corresponding with the first picture signal, according to this drive singal, reflect the first angle source light, form the reflection ray corresponding with each pixel of the first picture, this reflection ray forms the first projected image through camera lens 3 in the first imaging region imaging of display screen.And, receive the second angle source light, and the second picture that signal processing system 22 sends, and form the drive singal corresponding with the second picture, according to this drive singal, reflect the second angle source light, form the reflection ray corresponding with each pixel of the second picture, this reflection ray forms the second projected image through camera lens 3 in the second imaging region imaging of display screen.
Particularly, the angle incided between the first angle source light on the micro mirror array of DMD and the second angle source light is less than 48 degree.Below in conjunction with Fig. 7 (a), 7 (b), 7 (c), its reason is described:
In micro mirror array on DMD, arbitrary micro mirror is according to the difference of deflection angle, can be in three kinds of states respectively: Flat state, as shown in Fig. 7 (a), and ON state, as shown in Fig. 7 (b), and OFF state, as shown in Fig. 7 (c).When micro mirror does not deflect, be namely in Flat state; When micro mirror deflection+12 °, be namely in the state of ON; When micro mirror deflection-12 °, be namely in the state of OFF.When a certain light incides on micro mirror with arbitrarily angled, according to the principle of reflection of light, the angle between the reflection ray that the micro mirror deflection reflection ray of+12 ° and micro mirror deflect-12 ° is 48 degree.The reflection ray of DMD optical projection system general ON state carrys out imaging, the reflection ray of OFF state is not used for imaging, general use light absorber absorbs the reflection ray of OFF state, suppose that the light of two light beams incides on the micro mirror array of DMD with different angles, and the angle between the first angle source light and the second angle source light equals 48 degree, according to the principle of reflection of light, at this moment the reflection ray that a kind of angle source light deflects+12 ° at reflection ray and the another kind of angle source light of micro mirror deflection-12 ° at micro mirror then overlaps, and the reflection ray that this side up can be absorbed, namely a kind of angle source light is absorbed at the reflection ray of micro mirror deflection+12 °, then cause the loss of effective sunlight, thus reduce brightness of image, therefore the angle incided between the first angle source light on the micro mirror array of DMD and the second angle source light is not equal to 48 degree.Preferably, consider that light source and camera lens volume are specifically arranged, the angle angle of the first angle light beam and the second angle light beam two-beam is less than 48 degree, to ensure that-12 degree reflection rays of front light beam can not have influence on+12 degree reflection rays of rear light beam.
Wherein, DMD driving chip 23 is respectively used to generate the first corresponding drive singal and the second drive singal according to the first image content and the second image content, DMD21 is controlled by the first drive singal respectively, first angle light beam is reflected, form the reflection ray corresponding with the pixel of the first image content, and be controlled by the second drive singal, the second angle light beam is reflected, forms the reflection ray corresponding with the pixel of the second image content.
In addition, suppose that DMD is the resolution of 4K × 2K, can be understood as, this DMD has 4K × 2K small eyeglass, and each little eyeglass correspond to a pixel in image.Be 4K × 2K by the image frame resolution of existing single DMD optical projection system imaging, and the image frame resolution of the projection display system imaging provided by the embodiment of the present invention, when left and right is spliced, image frame resolution just becomes 8K × 2K, when splicing up and down, image frame resolution just becomes 4K × 4K, and namely the image frame resolution of unidirectional dimension is improved.
Camera lens 3, for the corresponding relation according to angle imaging region, the reflection ray that each pixel of the first picture sent by DMD21 is corresponding, in the first imaging region imaging of display screen; And according to the corresponding relation of angle imaging region, the reflection ray that each pixel of the second picture sent by DMD21 is corresponding, in the second imaging region imaging of display screen; Wherein, the image construction one width complete image of the first imaging region and the second imaging region; The corresponding relation of angle imaging region is: the first angle source light, the first imaging region of corresponding display screen, the second angle source light, the second imaging region of corresponding display screen.
See Fig. 9, when image to be displayed is divided into left and right two parts picture, the first angle light beam that light source 1 sends and the second angle light beam are alternately irradiated on DMD, DMD is according to the signal with parts of images to be shown, i.e. the first picture signal or the second picture signal, corresponding drive singal overturns, thus the first angle light beam after modulation and the second angle light beam timesharing are incident in projection lens, and project on projection screen 4 through lens imaging image lenses, form the first projected image 41 as shown in the figure, second projected image 42, first projected image 41 and the second projected image 42 are spliced to form a width picture.Because the resolution of DMD is fixed, first projected image 41 and the second projected image 42 share a set of optical system, thus view field's size of two parts of images is identical, but position is different, thus piece image is divided into two part displays, and the resolution of each part is identical, for entire image, Width in other words in the horizontal direction, not only size obtains multiplication, resolution also achieves and doubles, and contributes to improving picture quality.
In like manner, as shown in Figure 10, with the concrete enforcement described in Fig. 9 unlike, light source in Figure 10 adopts a light source, and coordinate the rotation of catoptron 13 to realize output that timesharing replaces two kinds of angle light beams, and, image to be displayed is split up and down, form two-part first picture and the second picture up and down, process in similar Fig. 9, final image with the first projected image 41 and the second projected image 42 Alternation Display on projection screen, in this concrete enforcement, because image is split up and down, thus in the vertical direction, length direction in other words, dimension enlargement is original twice, the resolution in this direction also expands as original twice simultaneously, contribute to improving picture quality.
To sum up, the technical scheme that the one or more embodiment of the present invention provides, for Image Segmentation Using to be shown, such as be divided into two parts, the first picture and the second picture, replace the light beam of different angles by light source, first angle light beam and the second angle light beam, make the light beam of light source of different angles provide illumination for different display frame, and corresponding different display frame contents is modulated, finally imaging exports successively.Adjoint first angle and the second angle are alternately, first projected image and the second projected image alternately export, human eye vision is utilized to persist, first projected image and the second projected image form a complete picture, and along segmentation direction, the size of projected image obtains multiplication, thus utilize a projection display apparatus can realize the display of large-size images, in such scheme, the consistance to change and the picture of beam angle export only is needed to carry out synchronously, controlling easy.
And, in technique scheme, owing to splitting image to be displayed, and the picture part timesharing that segmentation is formed is exported, and the first picture and the second picture all show with identical resolution, thus the resolution of a width complete picture on segmentation direction also doubles, and reaches the technique effect improving single dimension image resolution ratio.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a projected picture display packing, is characterized in that,
Receive the first angle light beam that light source sends;
According to the first image content, described first angle light beam is modulated;
The first angle beam projection after modulation is formed the first projected image;
Receive the second angle light beam that light source sends, wherein, described first angle light beam and the second angle light beam alternately send;
According to the second image content, described second angle light beam is modulated;
The second angle beam projection after modulation is formed the second projected image;
Wherein, described first projected image and described second projected image are spliced to form a width complete image.
2. method according to claim 1, is characterized in that, described first projected image and the second projected image are incident upon the zones of different of projection screen respectively.
3. method according to claim 2, is characterized in that, in a certain angle between described first angle light beam and the second angle light beam, described angle is not equal to 48 degree.
4. method according to claim 1, is characterized in that, described according to the first image content described first angle light beam to be modulated before also comprise,
By width image to be displayed segmentation formation first picture and second picture.
5. method according to claim 1, is characterized in that, described modulation described first angle light beam according to the first image content specifically comprises:
First drive singal corresponding with described first image content is generated according to the first image content,
According to described first drive singal, described first angle light beam is reflected, form the reflection ray corresponding with the pixel of described first image content;
And described modulation described second angle light beam according to the second image content specifically comprises:
Second drive singal corresponding with described second image content is generated according to the second image content,
According to described second drive singal, described second angle light beam is reflected, form the reflection ray corresponding with the pixel of described second image content.
6. a projected picture display system, is characterized in that, comprising: light source, ray machine and camera lens, wherein,
Described light source, for alternately sending the first angle light beam and the second angle light beam, for described ray machine provides illumination;
Described ray machine, for receiving described first angle light beam and the second angle light beam, and modulates the first angle light beam and the second angle according to the first picture and the second image content respectively;
Described camera lens, the first projected image and the second projected image is formed for respectively the first angle light beam after modulation and the second angle light beam being projected to projection screen, wherein, described first projected image and described second projected image are spliced to form a width complete image.
7. system according to claim 6, is characterized in that,
Described first projected image and the second projected image are incident upon the zones of different of projection screen respectively.
8. system according to claim 6, is characterized in that, in a certain angle between described first angle light beam and the second angle light beam, described angle is not equal to 48 degree.
9. system according to claim 6, described ray machine also comprises signal processing system, and described signal processing system is also for splitting formation first picture and the second picture by a width image to be displayed.
10. system according to claim 6, it is characterized in that, described ray machine also comprises DMD driving chip and DMD, and described DMD driving chip is respectively used to generate the first corresponding drive singal and the second drive singal according to described first image content and the second image content
Described DMD is controlled by described first drive singal respectively, described first angle light beam is reflected, form the reflection ray corresponding with the pixel of described first image content, and be controlled by described second drive singal, described second angle light beam is reflected, forms the reflection ray corresponding with the pixel of described second image content.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110142.2A CN105527789A (en) | 2016-02-29 | 2016-02-29 | Projection display method and system |
| CN201810404435.0A CN108459455A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
| CN201810404436.5A CN108663883A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
| US15/212,862 US20160327783A1 (en) | 2016-02-29 | 2016-07-18 | Projection display system and method |
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| CN201610110142.2A CN105527789A (en) | 2016-02-29 | 2016-02-29 | Projection display method and system |
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| CN201810404436.5A Division CN108663883A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
| CN201810404435.0A Division CN108459455A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
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| CN105527789A true CN105527789A (en) | 2016-04-27 |
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| CN201810404435.0A Withdrawn CN108459455A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
| CN201810404436.5A Withdrawn CN108663883A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
| CN201610110142.2A Pending CN105527789A (en) | 2016-02-29 | 2016-02-29 | Projection display method and system |
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| CN201810404436.5A Withdrawn CN108663883A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
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| CN113671782B (en) * | 2021-10-21 | 2022-02-15 | 成都极米科技股份有限公司 | Projection equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108663883A (en) | 2018-10-16 |
| CN108459455A (en) | 2018-08-28 |
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Application publication date: 20160427 |