CN108459455A - A kind of projection display system - Google Patents
A kind of projection display system Download PDFInfo
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- CN108459455A CN108459455A CN201810404435.0A CN201810404435A CN108459455A CN 108459455 A CN108459455 A CN 108459455A CN 201810404435 A CN201810404435 A CN 201810404435A CN 108459455 A CN108459455 A CN 108459455A
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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
-
- 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]
Abstract
The invention discloses a kind of method for displaying projection and systems, first angle light beam and second angle light beam are alternately exported by light source, the light beam of light source of different angle is set to provide illumination for different display pictures, and corresponding different display image content is modulated, by the finally imaging output successively of the light beam of modulated different angle, the first projected image and the second projected image are formed.It is persisted using human eye vision, the first projected image and the second projected image form the complete picture of a width, and to which the display of large-size images can be realized using a projection display apparatus, control is easy, at low cost.
Description
The application is in entitled " a kind of method for displaying projection and system " proposed on 02 29th, 2016
The divisional application of state's application for a patent for invention 201610110142.2.
Technical field
The present invention relates to projection display technique field more particularly to a kind of method for displaying projection and systems.
Background technology
Projection display apparatus generally includes light source, ray machine and camera lens, and wherein light source provides illumination, traditional light source for ray machine
Including mercury lamp, LED light source, and the laser light source that rises at present.
The core component of ray machine is Digital Micromirror Device（Digital Micromirrored Device, DMD）, it is one
The spatial light modulator of kind total digitalization utilizes high-speed switch speed and pulse width modulation to generate accurate color of image and ash
Degree control.The surfaces DMD have been covered with two-dimensional array, and each micromirror is equivalent to a pixel in projected picture, each
Micromirror can free deflection, micromirror deflects different deflection angles, just will present different states.Therefore, by each
The deflection angle of micromirror controls the reflection of light, and then realizes the real-time display of image.
Camera lens receives the light of ray machine DMD reflections, projects projection medium by one group of imaging lens, shows perspective view
Picture.
When realizing large scale projection, typically more projection devices are spliced, as shown in Figure 1, simultaneously synchronous control is realized
The display of multi-picture splicing.But the projection device in said program is more, on the one hand of high cost, on the other hand needs to take into account not
With display parameters between projection device and the consistency of synchronous control, control is relative complex.
Invention content
An embodiment of the present invention provides a kind of method for displaying projection and systems, and projection can be realized by a projection device
The tiled display of picture solves tiled display picture in the prior art and controls complexity, technical problem of high cost in the process.
The object of the invention is achieved through the following technical solutions：
First, the embodiment of the present invention provides a kind of method for displaying projection,
Receive the first angle light beam that light source is sent out；
The first angle light beam is modulated according to the first image content；
It projects modulated first angle light beam to form the first projected image；
Receive the second angle light beam that light source is sent out, wherein the first angle light beam and second angle light beam are alternately sent out；
The second angle light beam is modulated according to the second image content；
It projects modulated second angle light beam to form the second projected image；
Wherein, first projected image and second projected image are spliced to form a width complete image.
And the embodiment of the present invention additionally provides a kind of projection display system, including：Light source, ray machine and camera lens,
In,
The light source provides illumination for alternately sending out first angle light beam and second angle light beam for the ray machine；
The ray machine, for receiving the first angle light beam and second angle light beam, and respectively according to the first picture and second
Image content is modulated first angle light beam and second angle；
The camera lens, for after respectively will be modulated first angle light beam and second angle light beam be projected to projection screen and formed
First projected image and the second projected image, wherein first projected image and second projected image are spliced to form one
Width complete image.
The embodiment of the present invention has at least the following advantages and advantageous effect：
The method for displaying projection and system that technical solution of the embodiment of the present invention provides, by the change of light source output angle, alternately
First angle light beam and second angle light beam are exported, the light beam of light source of different angle is made to provide illumination for different display pictures,
And corresponding different display image content is modulated, finally imaging output successively.With the alternating of first angle and second angle
Property, the first projected image and the second projected image alternately exported, persisted using human eye vision, the first projected image and the second projection
Image forms the complete picture of a width, and along segmentation direction, and the size of projected image is doubled, to utilize a projection
Display equipment can be realized the displays of large-size images, in said program, it is only necessary to the change to beam angle and picture output
Consistency synchronize, control is easy.
Description of the drawings
Fig. 1 is a kind of large scale projection display system structural schematic diagram that the prior art provides；
Fig. 2 is a kind of method for displaying projection flow chart that the embodiment of the present invention one provides；
Fig. 3 is a kind of structural schematic diagram of projection display system provided in an embodiment of the present invention；
Fig. 4 A are a kind of structural schematic diagram of light source in projection display system provided in an embodiment of the present invention；
Fig. 4 B are the structural schematic diagram of another light source in projection display system provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of ray machine in projection display system provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of camera lens in projection display system provided in an embodiment of the present invention；
Fig. 7 (a), 7 (b), 7 (c) are respectively that incident light provided in an embodiment of the present invention is in three kinds of different conditions in DMD micromirrors
Reflection light schematic diagram；
Fig. 8 is another projection display system structural schematic diagram provided in an embodiment of the present invention；
Fig. 9 is the configuration diagram of another projection display system provided in an embodiment of the present invention；
Figure 10 is the configuration diagram of another projection display system provided in an embodiment of the present invention.
Specific implementation mode
The advantages of embodiment being further illustrated the present invention below in conjunction with attached drawing.
Embodiment one
As shown in Figure 1, an embodiment of the present invention provides a kind of projected picture display methods,
Step S1：Receive the first angle light beam that light source is sent out；
Light source can be laser light source, can also be LED light source.Preferably laser light source, brightness is high, and colour gamut is good.
Step S2：The first angle light beam is modulated according to the first image content.
Further include dividing a width image to be displayed to form the first picture and the second picture before step S2,
Wherein, the first picture and the specific partitioning scheme of the second picture are such as left and right segmentation, or segmentation up and down.
First angle light beam corresponds to the first picture and provides illumination, and according to the first image content, particularly each picture
The grayscale RGB component value of element determines the light quantity of RGB in the light beam being actually needed, to form coloured image.
The process specifically modulated is：The first driving corresponding with first image content is generated according to the first image content
Signal, the drive signal are used to control DMD in ray machine, digital micromirror array, it is aforementioned it has been noted that DMD pass through it is multiple small
The reflection to different colours light is realized in the overturning of eyeglass different angle, so that the light of different light quantities is entered in camera lens, therefore the driving
Signal is the control signal of each small eyeglass flip angle and sequential in order to control.According to the first drive signal, to first angle
Light beam is reflected, and reflection light corresponding with the pixel of the first image content is formed.It is, according to each pixel of picture
Color forms light quantity corresponding with image grayscale value to be shown, these reflection lights to the light of different RGB three primary colours respectively
Eventually enter into camera lens.
Step S3：It projects modulated first angle light beam to form the first projected image；
DMD reflects the reflection light of corresponding first image content in lens imaging component, and project projection screen or
The first projected image is formed on other projection media.
Step S4：Receive the second angle light beam that light source is sent out, wherein the first angle light beam and second angle light beam
Alternating is sent out；
By the change to light beam of light source, make to form first angle light beam and second angle light beam, and alternately, be periodically sent out.
Similar step S1, second angle light beam will be for showing that the display of following second picture illuminates.
Step S5：The second angle light beam is modulated according to the second image content；
Similar step S2, second angle light beam correspond to the second picture and provide illumination, and according to the first image content, particularly
The grayscale RGB component value of each pixel determines the light quantity of each colors of RGB in the light beam being actually needed, to form coloured image.
The process specifically modulated is：The first driving corresponding with second image content is generated according to the second image content
Signal, the drive signal are used to control DMD in ray machine, digital micromirror array, it is aforementioned it has been noted that DMD pass through it is multiple small
The reflection to different colours light is realized in the overturning of eyeglass different angle, so that the light of different light quantities is entered in camera lens, therefore the driving
Signal is the control signal of each small eyeglass flip angle and sequential in order to control.According to the second drive signal, to second angle
Light beam is reflected, and reflection light corresponding with the pixel of the second image content is formed.It is, according to each pixel of picture
Color forms light quantity corresponding with image grayscale value to be shown, these reflection lights to the light of different RGB three primary colours respectively
Eventually enter into camera lens.
Step S6：It projects modulated second angle light beam to form the second projected image；Wherein, the first projected image and
Second projected image is spliced to form a width complete image.
In first projected image and the second projected image alternating projection to projection screen, and different regions is projected to, profit
With the human eye persistence of vision, a width completely large-sized picture is formed.
In the above-described embodiments, it is overturn in positive and negative 12 ° of ranges due to the micro mirror array in DMD, in order to ensure
- 12 ° of preceding light beam degree reflection lights do not interfere with+12 ° of reflection lights of rear light beam, and+12 ° of reflection light be into
Enter light needed for effective imaging of camera lens, the angle between first angle light beam and second angle light beam is not equal to 48 degree, preferably
Ground is less than 48 degree, that is, is less than the field angle range of 2 times of DMD.
The method for displaying projection that the embodiment of the present invention one provides passes through the change of light source output angle, alternately output first
Angle light beam and second angle light beam make the light beam of light source of different angle provide illumination for different display pictures, and correspond to not
Same display image content is modulated, finally imaging output successively.Alternately with first angle and second angle, it first throws
Shadow image and the second projected image alternately export, and are persisted using human eye vision, the first projected image and the second projected image composition
The complete picture of one width, and along segmentation direction, the size of projected image is doubled, to utilize a projection display apparatus
The display of large-size images is can be realized, in said program, it is only necessary to the consistency of change and picture output to beam angle
It synchronizes, control is easy.
Simultaneously as by dividing a width image to be displayed to form the first picture and the second picture, and the first picture and
Second picture is shown by the resolution ratio of corresponding DMD, to resolution ratio of the width complete picture on segmentation direction
It is improved, for example DMD is the resolution ratio of 4K × 2K, it can be understood as, which has 4K × 2K small eyeglasses, each
Small eyeglass corresponds to a pixel in image.Image frame resolution ratio by existing single DMD optical projection systems imaging is
4K × 2K, and the image frame resolution ratio of the projection display system imaging provided through the embodiment of the present invention, when left and right is spliced,
Image frame resolution ratio reforms into 8K × 2K, and when upper and lower splicing, image frame resolution ratio reforms into 4K × 4K, i.e., unidirectional dimension
Image frame resolution ratio be improved.
Embodiment two
Second embodiment of the present invention provides a kind of projected picture display systems, as shown in figure 3, include light source 1, ray machine 2, camera lens
3.Wherein, light source 1 provides illumination for alternately sending out first angle light beam and second angle light beam for ray machine 2.Ray machine 2 is used
In reception first angle light beam and second angle light beam, and respectively according to the first picture and the second image content to first angle light
Beam and second angle are modulated.Camera lens 3, for after respectively will be modulated first angle light beam and the projection of second angle light beam
The first projected image and the second projected image are formed to projection screen, wherein the first projected image and the splicing of the second projected image
Form a width complete image.
The image-forming principle of all projection display systems provided through the embodiment of the present invention is all identical below, below with
The imaging of piece image illustrates that the image-forming principle of projection display system provided in an embodiment of the present invention, image-forming principle include：
Piece image to be shown is divided into two parts image first, it is corresponding according to a kind of angle source light of irradiation DMD
The display of one parts of images and an imaging region for showing screen, the source light using different angle are alternately DMD
Illumination is provided, by same DMD timesharing by need each section image of image to be shown image in display screen each really
Imaging region is determined, by the one width complete image of image construction of each imaging region.
The embodiment of the present invention two is illustrated below in conjunction with the accompanying drawings.
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 the way that rotatable speculum is arranged in the optical path, light source continues point
It is bright, and by the rotation of speculum, the emergent ray of different angle is formed, to form first angle light beam and second angle light
Beam.Specifically, when light source 1 includes a light source 11, light source 11 can be laser and fluorescent wheel and multiple optical mirror slip groups
At, the mixing light source being made of laser and fluorescence can also be pure laser light source.Setting can be chronologically in 11 light path of light source
The speculum 13 of rotation, and speculum 13 have the first rotary angle position and the second rotary angle position when；Light source 16 continues
It lights, and the light of the light and second angle of corresponding first rotary angle position and the second rotary angle position output first angle
Line indicates the light beam of the speculum reflection of the second rotary angle position in Fig. 4 A with dotted arrow, certainly, in the case, should
Light source 1 may also include light source control device（It is not shown in figure）；Light source control device, the synchronous control for receiving the transmission of ray machine 2
Signal processed, according to the synchronous control signal, control speculum 13 chronologically rotates, to be located at the first rotary angle position
Or second rotary angle position.
It is of course also possible to which as shown in Figure 4 B, light source 1 is made of the sub-light source of two angled settings, including first light source
11, second light source 12, two sub-light source timesharing are lighted, to replace, periodically export first angle light beam and second
Angle light beam.Preferably, as shown in Figure 4 B, light source 1 further includes light source control device 12.Wherein, first light source 11 and the second light
12 angled setting of source；Light source control device 12, the synchronous control signal for receiving ray machine transmission are believed according to the synchronous control
Number, it controls first light source 11 or second light source 12 is chronologically lighted, emitted beam respectively with first angle and second angle, alternating
Illumination is provided for rear end ray machine 2.
In a specific implementation, light source 1 includes laser, fluorescent wheel, filter wheel and multi-disc lens and speculum eyeglass
The light path of composition, light beam of light source is eventually by the higher RGB three primary colours of filter wheel timing output purity or RGBY four primaries.
Ray machine 2, as shown in figure 5, including DMD digital micromirror arrays 21, DMD driving chips 22, wherein DMD receives light source
The light beam of the different angle of outgoing, and the light quantity reflected is determined by the different flip angle of multiple small eyeglasses；Ray machine 2 also wraps
Signal processing system 23 is included, signal processing system 23 gives multiple portions image for a width image to be displayed to be split,
In the present embodiment, specific segmentation forms the first picture and the second picture, the first picture and the second picture can be based on it is to be shown
The left-right parts of image are divided, and can also be top and the bottom segmentation.
When the first picture and the second picture are that top and the bottom are divided, then first angle light beam and second angle light beam have
The angle of vertical direction, when the first picture and the second picture are that left-right parts are divided, then first angle light beam and second angle
Light beam has the angle of horizontal direction.
DMD driving chips generate corresponding drive signal according to the first picture and the second picture content signal, generally,
The flip angle and clock signal of each small eyeglasses of DMD are just converted into from the pixel gray level value signal of image, DMD is controlled by above-mentioned
Drive signal is overturn.
Sync control device 24 is sent respectively to signal for generating synchronous control signal, and by the synchronous control signal
Processing system and light source；Wherein, synchronous control signal, for synchronous control light source incidence sequential and the overturning sequential of DMD, tool
Body, the light that control light source is sent out irradiate the sequential of the DMD, with signal processing system by each section image i.e. the first picture
Or second picture signal export to the timing synchronization of DMD.
It should be noted that synchronous control signal can also generate in other way, for example, can be by that can realize letter
The function of number processing system can realize that a certain system of the function of sync control device generates again.The embodiment of the present invention is not intended to limit
The generating mode of synchronous control signal, as long as can guarantee each section figure that can will need image to be shown by same DMD timesharing
As output to camera lens is imaged.
Camera lens 3, as shown in fig. 6, including optics closing light element 31 and a projection lens 32.Wherein, optics closing light element
31, for changing DMD21 the first pictures sent out the corresponding reflection light of each pixel and/or DMD21 send out second draw
The direction of the corresponding reflection light of each pixel in face, is allowed to the parallel different zones for being incident on projection lens 32；And due to
Being incident to the angle of optics closing light element 31 or position through the modulated first angle light beams of DMD21 and second angle light beam has difference
Different, optics closing light element 31 can also select even optical element to homogenize the light for entering projection lens 32, make finally to project formation
The first projected image and the second projected image brightness uniformity.
The projection lens 32 will be after optics closing light element 31 for the correspondence according to angle imaging region
The corresponding reflection lights of each pixel of the first picture that send out of the DMD21, in the first imaging region shape of display screen
At the first projected image, and, according to the correspondence of angle imaging region, by the DMD21 after optics closing light element 31
The corresponding reflection light of each pixel of the second picture sent out is imaged to form the second throwing in the second imaging region of display screen
Shadow image, that is, the first projected image and the second projected image be incident upon the different zones of projection screen respectively, and, first
Projected image and the second projected image are spliced to form a width complete image.
The projection display system provided below in conjunction with specific implementation a present invention will be described in detail embodiment two.
As shown in Figure 8, wherein light source 1, the synchronous control signal for receiving the transmission of sync control device 24, according to this
The clock signal of synchronous control signal, with first angle and second angle, alternately emit beam irradiation DMD21.
In ray machine 2, sync control device 24 is sent out respectively for generating synchronous control signal, and by the synchronous control signal
Give signal processing system 22 and light source 1；Wherein, synchronous control signal controls light for the correspondence according to angular image
The sequential of light that source 1 is sent out irradiation DMD21 exports each section image with signal processing system 22 same to the sequential of DMD21
Step；Wherein, the correspondence of angular image is：First angle source light, the display of corresponding first picture, second angle light 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 sync control device
According to the parts of images signal that signal processing system generates, in this step, i.e. the first picture signal, the first picture of output is shown
Synchronous first angle light beam lights signal.The same above process of the way of output of second picture signal and second angle light beam.
DMD21 is according to pair of the output timing and angular image of first angle source light and second angle source light
Should be related to, the first picture signal sent for receiving first angle source light and signal processing system 22, and formed with
The corresponding drive signal of first picture signal reflects first angle source light according to the drive signal, is formed and the first picture
The corresponding reflection light of each pixel, first imaging region of the reflection light through camera lens 3 in display screen are imaged to form first
Projected image.And receive the second picture that second angle source light and signal processing system 22 are sent, and formed with
The corresponding drive signal of second picture reflects second angle source light according to the drive signal, is formed each with the second picture
The corresponding reflection light of pixel, second imaging region of the reflection light through camera lens 3 in display screen are imaged to form the second projection
Image.
Specifically, it is incident between the first angle source light on the micro mirror array of DMD and second angle source light
Angle be less than 48 degree.Illustrate its reason with reference to Fig. 7 (a), 7 (b), 7 (c)：
Any micro mirror can be respectively at three kinds of states according to the difference of deflection angle in micro mirror array on DMD：Flat states, such as
Shown in Fig. 7 (a), ON states, as shown in Fig. 7 (b) and OFF state, as shown in Fig. 7 (c).When micro mirror does not deflect, that is, locate
In Flat states；When micro mirror deflects+12 °, that is, it is in the state of ON；When micro mirror deflects -12 °, that is, it is in the state of OFF.
When a certain light is incident on any angle on micro mirror, according to the principle of reflection of light, micro mirror deflect+12 ° of reflection light with it is micro-
The angle that mirror deflects between -12 ° of reflection light is 48 degree.DMD optical projection systems generally using the reflection light of ON states come at
Picture, the reflection light of OFF state are not used to be imaged, and generally use light absorber to absorb the reflection light of OFF state, it is assumed that two
The light of light beam is incident on the micro mirror array of DMD at different angles, and first angle source light and second angle light source
Angle between light is equal to 48 degree, and according to the principle of reflection of light, at this moment a kind of angle source light is in -12 ° of micro mirror deflection
Reflection light deflects+12 ° of reflection light in micro mirror with another angle source light and then generates Chong Die, and that this side up is anti-
It penetrates light to be absorbed, i.e., the reflection light that a kind of angle source light deflects+12 ° in micro mirror is absorbed, then is caused effectively
The loss of light, to reduce brightness of image, therefore the first angle source light being incident on the micro mirror array of DMD and
Angle between two angle source lights is not equal to 48 degree.Preferably, it is contemplated that light source and camera lens volume are specifically arranged, first jiao
The included angle for spending light beam and second angle light beam two-beam is less than 48 degree, not with -12 degree reflection lights of light beam before guarantee
Influence whether+12 degree reflection lights of rear light beam.
Wherein, DMD driving chips 23 are respectively used to generate corresponding the according to the first image content and the second image content
One drive signal and the second drive signal, DMD21 are controlled by the first drive signal, reflect first angle light beam,
Reflection light corresponding with the pixel of the first image content is formed, and is controlled by the second drive signal, to second angle light beam
It is reflected, forms reflection light corresponding with the pixel of the second image content.
Moreover, it is assumed that DMD is the resolution ratio of 4K × 2K, it can be understood as, which has 4K × 2K small eyeglasses, often
A small eyeglass corresponds to a pixel in image.Pass through the image frame resolution ratio of existing single DMD optical projection systems imaging
For 4K × 2K, and the image frame resolution ratio of the projection display system imaging provided through the embodiment of the present invention, when left and right is spliced
When, image frame resolution ratio reforms into 8K × 2K, and when upper and lower splicing, image frame resolution ratio reforms into 4K × 4K, i.e., unidirectionally
The image frame resolution ratio of dimension is improved.
Camera lens 3, for the correspondence according to angle imaging region, by each pixel of DMD21 the first pictures sent out
Corresponding reflection light, in the first imaging region imaging of display screen；And the correspondence according to angle imaging region,
By the corresponding reflection light of each pixel of DMD21 the second pictures sent out, in the second imaging region imaging of display screen；Its
In, the one width complete image of image construction of the first imaging region and the second imaging region；The correspondence of angle imaging region is：
First angle source light, corresponding the first imaging region for showing screen, second angle source light are corresponding to show the of screen
Two imaging regions.
Referring to Fig. 9, when image to be displayed is divided into left and right two parts picture, first angle light beam that light source 1 is sent out and
Second angle light beam is alternately irradiated on DMD, DMD according to the signal with parts of images to be shown, i.e. the first picture signal or
Second picture signal, corresponding drive signal are overturn, thus by modulated first angle light beam and second angle light beam
Timesharing is incident in projection lens, and is projected on projection screen 4 through lens imaging image lenses, and as shown in the figure first is formed
Projected image 41, the second projected image 42, the first projected image 41 and the second projected image 42 are spliced to form a width picture.Due to
The resolution ratio of DMD is fixed, and the first projected image 41 and the second projected image 42 share a set of optical system, to two part figures
View field's size of picture is identical, but position is different, is shown to which piece image is divided into two parts, and each part
Resolution ratio is identical, for entire image, width direction in other words in the horizontal direction, not only size doubled, differentiate
Rate, which also achieves, to be doubled, and helps to promote image quality.
Similarly, as shown in Figure 10, unlike the specific implementation described in Fig. 9, the light source in Figure 10 uses a light source,
And the rotation of speculum 13 is coordinated to realize that timesharing replaces the output of two kinds of angle light beams, and, image to be displayed is divided up and down,
Two-part first picture and the second picture up and down are formed, the process in similar Fig. 9, final image is with 41 He of the first projected image
Second projected image 42 is alternately displayed on projection screen, in the preset implementation, since image is divided up and down, to
In vertical direction, length direction in other words, dimension enlargement is original twice, while the resolution ratio of the direction is also expanded as originally
Twice, contribute to promoted image quality.
To sum up, the technical solution that the one or more embodiments of the present invention provide, is split, example for image to be shown
It is such as divided into two parts, the first picture and the second picture, replaces the light beam of different angle, first angle light beam and the by light source
Two angle light beams make the light beam of light source of different angle provide illumination, and corresponding different display picture for different display pictures
Content is modulated, finally imaging output successively.Alternately with first angle and second angle, the first projected image and second
Projected image alternately exports, and is persisted using human eye vision, and the first projected image and the second projected image form a width and completely draw
Face, and along segmentation direction, the size of projected image is doubled, to which big ruler can be realized using a projection display apparatus
The display of very little image, in said program, it is only necessary to which the consistency of change and picture output to beam angle synchronizes, and controls
It is easy.
And in above-mentioned technical proposal, due to being divided to image to be displayed, and to the picture part of segmentation formation
Timesharing exports, and the first picture and the second picture are shown with identical resolution ratio, to which a width complete picture is being divided
Resolution ratio on direction also doubles, and has reached the technique effect of the single dimension image resolution ratio of raising.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
Usable storage medium（Including but not limited to magnetic disk storage and optical memory etc.）The shape of the computer program product of upper implementation
Formula.
The present invention be with reference to according to the method for the embodiment of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of projection display system, which is characterized in that including light source, ray machine and camera lens, wherein
The light source, alternating send out the light beam of first angle and second angle；
The ray machine, timesharing receive the first angle light beam and second angle light beam, and respectively according to the first picture and second
Picture is modulated first angle light beam and second angle light beam；Wherein, first picture and the second picture are based on a width
Image to be displayed or so or up and down segmentation are formed；
The camera lens, will be modulated after first angle light beam and second angle light beam be projected to projection screen formed first projection
Image and the second projected image, first projected image and second projected image are incident upon the difference of projection screen respectively
Imaging region is simultaneously spliced to form a width complete image, and the width complete image is along the resolution multiplied of stitching direction.
2. system according to claim 1, which is characterized in that the camera lens further includes optics closing light element and a projection
Camera lens；Wherein,
Each pixel of the optics closing light element, each section image sent out for changing the dmd chip is corresponding anti-
The direction for penetrating light is allowed to the parallel different zones for being incident on the projection lens；
The projection lens, each section image for sending out the dmd chip after the optics closing light element
The corresponding reflection light of each pixel, be respectively formed projected image in the different zones of projection screen.
3. system according to claim 1, which is characterized in that be between the first angle light beam and second angle light beam
Certain angle, the angle are not equal to 48 degree.
4. system according to claim 2 or 3, which is characterized in that first picture and the second picture are top and the bottom
Segmentation is formed, and the first angle light beam and second angle light beam have the angle of vertical direction, alternatively, first picture and
Second picture is that left-right parts are divided to be formed, the angle of the first angle light beam and second angle light beam with horizontal direction.
5. system according to claim 1, the light source includes the sub-light source of two angled settings；Described two sub-lights
Source is chronologically lighted, and is emitted beam respectively with first angle and second angle, alternating；
Alternatively,
The light-source system includes a light source, further includes rotatable speculum, and the light source is persistently lighted, and by described
The rotation of speculum forms first angle light beam and second angle light beam.
6. system according to claim 1, which is characterized in that the ray machine further includes DMD driving chips, and the DMD drives
Dynamic chip is respectively used to generate corresponding first drive signal and second according to first image content and the second image content
Drive signal,
The dmd chip is controlled by first drive signal, reflects the first angle light beam, formation and institute
The corresponding reflection light of pixel of the first image content is stated, and is controlled by second drive signal, to the second angle
Light beam is reflected, and reflection light corresponding with the pixel of the second image content is formed.
7. system according to claim 1, which is characterized in that light source is Light-emitting diode LED light source or laser light source.
8. system according to claim 2, which is characterized in that the system further includes signal processing system；At the signal
Reason system forms first picture and the second picture for the width image to be displayed to be split two parts image.
9. optical projection system according to claim 8, which is characterized in that the system further includes sync control device；It is described same
Control device is walked, the signal processing system is sent respectively to for generating synchronous control signal, and by the synchronous control signal
With the light source；Wherein, synchronous control signal, for synchronous control light source incidence sequential and the overturning sequential of dmd chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404435.0A CN108459455A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404435.0A CN108459455A (en) | 2016-02-29 | 2016-02-29 | A kind of projection display system |
| CN201610110142.2A CN105527789A (en) | 2016-02-29 | 2016-02-29 | Projection display method and system |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610110142.2A Division CN105527789A (en) | 2016-02-29 | 2016-02-29 | Projection display method and system |
Publications (1)
| Publication Number | Publication Date |
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| CN108459455A true CN108459455A (en) | 2018-08-28 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610110142.2A Pending CN105527789A (en) | 2016-02-29 | 2016-02-29 | Projection display method and system |
| 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 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610110142.2A Pending CN105527789A (en) | 2016-02-29 | 2016-02-29 | Projection display method and system |
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| Application Number | Title | Priority Date | Filing Date |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109729330A (en) * | 2019-03-06 | 2019-05-07 | 成都工业学院 | A kind of high-resolution projection display equipment |
| CN109756717A (en) * | 2019-03-06 | 2019-05-14 | 成都工业学院 | A kind of high-resolution projection display equipment |
| CN109884853A (en) * | 2019-04-16 | 2019-06-14 | 北京镭创高科光电科技有限公司 | Optical projection system and method |
| CN110998434A (en) * | 2019-11-28 | 2020-04-10 | 重庆康佳光电技术研究院有限公司 | Optical projection imaging system and method |
| CN111508383A (en) * | 2020-04-23 | 2020-08-07 | 歌尔光学科技有限公司 | Imaging method, imaging apparatus, and computer-readable storage medium |
| CN114779464A (en) * | 2022-05-24 | 2022-07-22 | 北京有竹居网络技术有限公司 | Optical signal modulator, control method and projection equipment |
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| CN111508383A (en) * | 2020-04-23 | 2020-08-07 | 歌尔光学科技有限公司 | Imaging method, imaging apparatus, and computer-readable storage medium |
| CN111508383B (en) * | 2020-04-23 | 2022-03-25 | 歌尔光学科技有限公司 | Imaging method, imaging apparatus, and computer-readable storage medium |
| CN114779464A (en) * | 2022-05-24 | 2022-07-22 | 北京有竹居网络技术有限公司 | Optical signal modulator, control method and projection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105527789A (en) | 2016-04-27 |
| CN108663883A (en) | 2018-10-16 |
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