CN106647130B - back projection splicing unit, system and back projection splicing unit adjusting method - Google Patents

back projection splicing unit, system and back projection splicing unit adjusting method Download PDF

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Publication number
CN106647130B
CN106647130B CN201710130660.5A CN201710130660A CN106647130B CN 106647130 B CN106647130 B CN 106647130B CN 201710130660 A CN201710130660 A CN 201710130660A CN 106647130 B CN106647130 B CN 106647130B
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China
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back projection
splicing
projector
unit
light beam
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CN201710130660.5A
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Chinese (zh)
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CN106647130A (en
Inventor
赵飞
刘显荣
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海信集团有限公司
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Abstract

The invention discloses a kind of back projection splicing unit, system and back projection splicing unit adjusting methods, belong to display technology field.Back projection splicing unit includes:Splice babinet, splice and be provided with screen unit on a surface of babinet, the position opposite with screen unit is provided with projector in splice box body, and reflection subassembly is provided between projector and screen unit;The first light beam in the light beam that projector goes out injects screen unit, the second light beam of the indication range beyond screen unit is reflected through reflection subassembly and is injected in splicing seams in light beam, and propagated along the gap of splicing seams, splicing seams are caused by splicing babinet and adjacent splicing box body splicing.In the present invention, human eye can watch image from splicing seams, isolate sense to eliminate splicing seams caused by image, both improved the display effect of image, also reduce the complexity for realizing back projection splicing unit, it is ensured that the color of image and the continuity of brightness.

Description

Back projection splicing unit, system and back projection splicing unit adjusting method

Technical field

The present invention relates to display technology field, more particularly to a kind of back projection splicing unit, system and back projection splicing list First adjusting method.

Background technology

Back projection splicing shows to refer to showing the image mosaic shown by multiple back projection splicing units together Technology.

In the related technology, back projection splicing system includes multiple back projection splicing units, each back projection splicing unit packet A projector and a screen unit are included, each projector projects image onto on corresponding screen unit.

Since there are splicing seams between adjacent back projection splicing unit so that the image of display has the feeling isolated, Affect the display effect of image.

Invention content

In order to solve the problem of between adjacent back projection splicing unit there are the display effect that splicing seams influence image, An embodiment of the present invention provides a kind of back projection splicing unit, system and back projection splicing unit adjusting methods.The technical side Case is as follows:

In a first aspect, providing a kind of back projection splicing unit, the back projection splicing unit includes:Splice babinet, institute It states and is provided with screen unit on a surface of splicing babinet, the position opposite with the screen unit is set in the splice box body It is equipped with projector, reflection subassembly is provided between the projector and the screen unit;

The first light beam in the light beam that the projector goes out injects the screen unit, exceeds in the light beam described Second light beam of the indication range of screen unit is reflected through the reflection subassembly to be injected in splicing seams, and along the seam of the splicing seams Gap is propagated, and the splicing seams are caused by the splicing babinet and adjacent splicing box body splicing.

Second aspect, provides a kind of back projection splicing system, and the back projection splicing system includes at least two such as the Back projection splicing unit described in one side.

The third aspect provides a kind of back projection splicing unit adjusting method, is applied to rear-projection as described in relation to the first aspect In shadow concatenation unit, the method includes:

Obtain the back projection parameter of the back projection splicing unit;

According to projector and the reflection subassembly described in the back projection parameter regulation, the projector after adjusting and institute Stating the preset condition that reflection subassembly meets is:The first light beam in the light beam that the projector goes out injects the screen list Member, the second light beam of the indication range beyond the screen unit is reflected through the reflection subassembly in the light beam injects splicing seams It is interior, and propagated along the gap of the splicing seams.

The advantageous effect of technical solution provided in an embodiment of the present invention is:

Second light beam of the indication range for exceeding screen unit in light beam is reflected through reflection subassembly and is injected in splicing seams, and It propagates along the gap of splicing seams, in this way, human eye can watch image from splicing seams, image is caused to eliminate splicing seams Isolate sense, improve the display effect of image.

Since the image that human eye is watched from splicing seams comes from projector, it is sent out in the image of projector When changing, the image that human eye is watched from splicing seams can also change, that is, the image that human eye is watched from splicing seams It is the image real-time change with projector, to ensure that the image shown between different back projection splicing units The continuity of color and brightness.And splicing seams are eliminated by increasing additional outer light source in the related technology, in this way, both increasing The complexity for realizing back projection splicing unit, can not also ensure the color of image and the continuity of brightness.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.

Fig. 1 is the vertical view of back projection splicing unit provided by one embodiment of the present invention;

Fig. 2 is the side view of back projection splicing unit provided by one embodiment of the present invention;

Fig. 3 is that outgoing beam in splicing seams provided by one embodiment of the present invention moves towards schematic diagram;

Fig. 4 is the mobile schematic diagram of projector provided by one embodiment of the present invention and reflection subassembly;

Fig. 5 is the mobile schematic diagram of projector provided by one embodiment of the present invention and reflection subassembly;

Fig. 6 is the schematic diagram of back projection splicing system provided by one embodiment of the present invention;

Fig. 7 is the method flow diagram of back projection splicing unit adjusting method provided by one embodiment of the present invention;

Fig. 8 is the method flow diagram of back projection splicing unit adjusting method provided by one embodiment of the present invention;

Fig. 9 is the method flow diagram of back projection splicing unit adjusting method provided by one embodiment of the present invention.

Specific implementation mode

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.

Referring to FIG. 1, it illustrates the vertical views of back projection splicing unit provided by one embodiment of the present invention.The rear-projection Shadow concatenation unit, including:Splice babinet, splice and be provided with screen unit 101 on a surface of babinet, in splice box body and shields The opposite position of curtain unit 101 is provided with projector 102, and reflection subassembly is provided between projector 102 and screen unit 101 103;

The first light beam in the light beam that projector 102 projects injects screen unit 101, exceeds screen unit in light beam Second light beam of 101 indication range is reflected through reflection subassembly 103 to be injected in splicing seams 104, and is passed along the gap of splicing seams 104 It broadcasts, splicing seams 104 are caused by splicing babinet and adjacent splicing box body splicing.

In conclusion back projection splicing unit provided in an embodiment of the present invention, will exceed the display of screen unit in light beam Second light beam of range is reflected through reflection subassembly to be injected in splicing seams, and is propagated along the gap of splicing seams, in this way, human eye can be from Image is watched in splicing seams, is isolated sense to eliminate splicing seams caused by image, is improved the display effect of image.

Since the image that human eye is watched from splicing seams comes from projector, it is sent out in the image of projector When changing, the image that human eye is watched from splicing seams can also change, that is, the image that human eye is watched from splicing seams It is the image real-time change with projector, to ensure that the image shown between different back projection splicing units The continuity of color and brightness.And splicing seams are eliminated by increasing additional outer light source in the related technology, in this way, both increasing The complexity for realizing back projection splicing unit, can not also ensure the color of image and the continuity of brightness.

Referring to FIG. 1, the back projection splicing unit, including:Splice babinet, splices and be provided with screen on a surface of babinet Curtain unit 101, the interior position opposite with screen unit 101 of splice box body are provided with projector 102, projector 102 and screen list It is provided with reflection subassembly 103 between member 101;

The first light beam in the light beam that projector 102 projects injects screen unit 101, exceeds screen unit in light beam Second light beam of 101 indication range is reflected through reflection subassembly 103 to be injected in splicing seams 104, and is passed along the gap of splicing seams 104 It broadcasts, splicing seams 104 are caused by splicing babinet and adjacent splicing box body splicing.

Reflection subassembly 103 is the component that mirror-reflection can be carried out to light, can be speculum etc., the present embodiment is not made It limits.

First light beam is the light beam that can be emitted directly toward screen unit 101, and the second light beam assumes that the side of splicing babinet When transparent, the light beam of splicing seams 104 can be emitted directly toward.Indicate light beam in Fig. 1 with three light, then from left to right from the point of view of, One light and Article 2 light form the first light beam, and Article 2 and Article 3 light form the second light beam.

Referring to FIG. 2, illustrated for splicing babinet and being placed on horizontal plane, then screen unit 101, projector Position relationship between 102 and speculum 103 is as shown in Figure 2.

It should be noted that the thickness of reflection subassembly 103 needs to be less than first threshold so that the second light beam can be through reflection The reflection of component 103 is projected, without all being injected inside reflection subassembly 103 from the side of reflection subassembly 103.

It should be noted that the highly desirable of reflection subassembly 103 is higher than second threshold so that the second light beam can be passed through all The reflection of reflection subassembly 103 is projected.

Referring to FIG. 1, Packed transparent components 105, the emergent light of reflection subassembly 103 is arranged on the side of splicing babinet Beam is injected through transparent components 105 in splicing seams 104, and transparent components 105 are made of glass material.

Transparent components 105 can be the windowpane made of glass material.Optionally, transparent components 105 can be embedded in On side.

The surrounding of transparent components 105 is sealed by fluid sealant, to prevent the light in the second light beam from leaking out.

It should be noted that the height of transparent components 105 is more than or equal to the height of reflection subassembly 103 so that reflection subassembly 103 outgoing beam can be injected all through transparent components 105 in splicing seams 104.

Since human eye is located at the opposite of screen unit 104, inject splicing seams in the outgoing beam of reflection subassembly 103 After in 104, it is also necessary to be propagated to 104 direction of screen unit by the gap of splicing seams 104 so that this part emergent light Beam can enter in human eye.

In specific implementation, three kinds of realization methods that outgoing beam is propagated along gap are present embodiments provided, separately below These three realization methods are introduced.

In the first realization method, splice and be coated with diffuse-reflective material on the side of babinet, injects in splicing seams 104 Light beam is propagated through diffuse-reflective material diffusing reflection, and along gap.

In second of realization method, splice and be coated with metal on the side of babinet, injects the light beam in splicing seams 104 through gold Belong to reflection, and is propagated along gap.

In the third realization method, splice and be coated with dielectric reflection film on the side of babinet, injects the light in splicing seams 104 Beam is reflected through dielectric reflection film, and is propagated along gap.

The side for splicing babinet refers to the side for being provided with transparent components 105.

In above-mentioned three kinds of realization methods, outgoing beam can be injected by reflection in human eye, referring to FIG. 3, it shows Human eye is gone out in different location, the outgoing beam in splicing seams 104 moves towards schematic diagram.

It should be noted that a splicing seams 104 correspond to one group of reflection subassembly 103 and transparent components 105.Work as splice box The surrounding of body can be correspondingly arranged multigroup reflection subassembly 103 and transparent components 105 there are when a plurality of splicing seams 104.

Carry out 103 He of reflection subassembly for example, at this time for example, being located on the right side of splicing babinet with splicing seams 104 in Fig. 1 Transparent components 105 are respectively positioned on the right side of projector 102.In actual implementation, splicing seams 104 can be located at a left side for splicing babinet Side, reflection subassembly 103 and transparent components 105 at this time are respectively positioned on the left side of projector 102;Alternatively, splicing seams 104 can be located at Splice the upside of babinet, reflection subassembly 103 and transparent components 105 at this time are respectively positioned on the upside of projector 102;Splicing seams 104 The downside of splicing babinet can be located at, reflection subassembly 103 and transparent components 105 at this time are respectively positioned on the downside of projector 102.

Due to the possible difference of width for the splicing seams 104 that splicing babinet is generated in splicing, therefore, it is necessary to projector 102 and the position of reflection subassembly 103 be adjusted so that the light beam that the projector 102 after adjusting projects includes the first light beam With the second light beam, the reflection subassembly 103 after adjusting will not block the first light beam, and can the second light beam be reflexed to splicing seams In 104.That is, the position of projector 102 and reflection subassembly 103 is all adjustable in splicing babinet.

When realizing, reflection subassembly 103 is arranged on the first guide rail in splice box body;Alternatively, reflection subassembly 103 is arranged In first support, first support is arranged on the first guide rail, and first support is fixing bracket or rotating bracket;Projector 102 It is arranged on the second guide rail in splice box body;Alternatively, the setting of projector 102 is on the secondary support bracket, second support setting is the On two guide rails.

Wherein, the first guide rail, which is arranged, is provided in splicing babinet on the side of transparent components 105;Alternatively, the first guide rail It is disposed on the same plane with the second guide rail, the first guide rail and the second guide rail at this time can be the same or different;Alternatively, the Plane where two guide rails is parallel with the plane where the second guide rail.

First support be can cannot rotate, the fixing bracket that can only be moved on the first guide rail, can also be can Rotation, the rotating bracket that can be also moved on the first guide rail, the present embodiment are not construed as limiting.It should be noted that first support is not The first light beam can be blocked.

Second support be can cannot rotate, the fixing bracket that can only be moved on the second guide rail, can also be can Rotation, the rotating bracket that can be also moved on the second guide rail, the present embodiment are not construed as limiting.

In the present embodiment, user can adjust the position of projector 102 and reflection subassembly 103 manually, alternatively, optionally, Splicing babinet can also automatically adjust the position of projector 102 and reflection subassembly 103, to improve the accuracy and effect of position adjusting Rate.Two kinds of regulative modes of the position of automatic adjustment projector 102 and reflection subassembly 103 are present embodiments provided, separately below Both regulative modes are introduced.

In the first regulative mode, back projection splicing unit further includes input unit 106 and control unit 107, control Unit 107 is connected with input unit 106, reflection subassembly 103 and projector 102 respectively;

Back projection parameter is sent to control unit by input unit 106 for receiving back projection parameter input by user 107, back projection parameter includes the width a of screen unit 101, the projection ratio b of projector 102 and the width x of splicing seams 104;

Control unit 107 is used to calculate the initial range of projector 102 according to back projection parameter and the first formula, according to the back of the body Projective parameter and the second formula calculate the target range of projector 102, and displacement distance is calculated according to initial range and target range And moving direction, control projector 102 moves displacement distance in the second guide rail upper edge moving direction, and controls reflection subassembly 103 Displacement distance is moved in the first guide rail upper edge moving direction;

Initial range is projector 102 and screen unit when the light beam that projector 102 projects all injects screen unit 101 The distance between 101, target range is that the first light beam in the light beam of projector 102 injects screen unit 101, the in light beam Two light beams are reflected through reflection subassembly 103 injects the distance between splicing seams Nei Shi projectors 102 and screen unit 101;

First formula is y1=a × b, the second formula are y2=(a+2 × x) × b, y1For initial range, y2For target away from From.

Referring to FIG. 4, the projector 102 in left side view has moved the displacement distance, if not adjusting reflection subassembly 103, meeting the first light beam of shield portions of reflection subassembly 103 causes the image shown on screen unit 101 imperfect, therefore, right side In view, reflection subassembly 103 can also be moved the displacement distance, keep opposite between projector 102 and reflection subassembly 103 Position is constant, in this way, reflection subassembly 103 will not block the first light beam, and can reflex to the second light beam in splicing seams 104.

The screen size being spliced into all screen units 101 is 70 cun, projection ratio is 0.77, the width of splicing seams is 2mm comes for example, then the width of screen is 1549.8mm;In original position, the initial range y of projector 102 and screen1 =1549.8*0.77=1193.346mm;In target location, the target range y of projector 102 and screen2=(1549.8+2 × 2) × 0.77=1196.426mm, displacement distance Δ y=y2-y1=3.08mm, moving direction are the negative direction of light beam projection. That is, projector 102 moves backward 3.08mm, reflection subassembly 103 moves backward 3.08mm.

In second of regulative mode, first support is rotating bracket, and back projection splicing unit further includes input unit 106 and control unit 107, control unit 107 be connected respectively with input unit 106, reflection subassembly 103 and projector 102;

Back projection parameter is sent to control unit by input unit 106 for receiving back projection parameter input by user 107, back projection parameter includes the width a of screen unit 101, the projection ratio b of projector 102 and the width x of splicing seams 104;

Control unit 107 is used to calculate the initial range of projector 102 according to back projection parameter and the first formula, according to the back of the body Projective parameter and the second formula calculate the target range of projector 102, and displacement distance is calculated according to initial range and target range And moving direction;And the angular interval of the second light beam is calculated according to back projection parameter, third formula and the 4th formula, control first Holder pivots make reflection subassembly 103 be located in angular interval;

Initial range is projector 102 and screen unit when the light beam that projector 102 projects all injects screen unit 101 The distance between 101, target range is that the first light beam in the light beam of projector 102 injects screen unit 101, the in light beam Two light beams are reflected through reflection subassembly 103 injects the distance between splicing seams Nei Shi projectors 102 and screen unit 101;

First formula is y1=a × b, the second formula are y2=(a+2 × x) × b, y1For initial range, y2For target away from From;

Angular interval is (α1, α2), third formula is α1=arctan [a/ (2 × y2)], the 4th formula is α2=arctan [(a+2×x)/(2×y2)]。

Referring to FIG. 5, the projector 102 in left side view has moved the displacement distance, if not adjusting reflection subassembly 103, meeting the first light beam of shield portions of reflection subassembly 103 causes the image shown on screen unit 101 imperfect, therefore, right side In view, reflection subassembly 103 can be rotated counterclockwise certain angle, in this way, reflection subassembly 103 will not block the first light beam, And the second light beam can be reflexed in splicing seams 104.

The screen size being spliced into all screen units 101 is 70 cun, projection ratio is 0.77, the width of splicing seams is 2mm comes for example, then the width of screen is 1549.8mm;In original position, the initial range y of projector 102 and screen1 =1549.8*0.77=1193.346mm;In target location, the target range y of projector 102 and screen2=(1549.8+2 × 2) × 0.77=1196.426mm, displacement distance Δ y=y2-y1=3.08mm, moving direction are the negative direction of light beam projection. That is, projector 102 moves backward 3.08mm.α1=arctan [1549.8/ (2 × 1196.426mm)], α2=arctan [(1549.8+2 × 2)/(2 × 1196.426)], the angular interval of the second light beam is [α1, α2], reflection subassembly 103 revolves counterclockwise Indexing is in the angular interval.

In conclusion back projection splicing unit provided in an embodiment of the present invention, will exceed the display of screen unit in light beam Second light beam of range is reflected through reflection subassembly to be injected in splicing seams, and is propagated along the gap of splicing seams, in this way, human eye can be from Image is watched in splicing seams, is isolated sense to eliminate splicing seams caused by image, is improved the display effect of image.

Since the image that human eye is watched from splicing seams comes from projector, it is sent out in the image of projector When changing, the image that human eye is watched from splicing seams can also change, that is, the image that human eye is watched from splicing seams It is the image real-time change with projector, to ensure that the image shown between different back projection splicing units The continuity of color and brightness.And splicing seams are eliminated by increasing additional outer light source in the related technology, in this way, both increasing The complexity for realizing back projection splicing unit, can not also ensure the color of image and the continuity of brightness.

Referring to FIG. 6, the structural schematic diagram of the back projection splicing system provided it illustrates yet another embodiment of the invention.It should Back projection splicing system includes at least two back projection splicing units.

Wherein, back projection splicing unit can be it is any in Fig. 1 to 5 shown in back projection splicing unit.

Referring to FIG. 7, it illustrates the methods of back projection splicing unit adjusting method provided by one embodiment of the present invention Flow chart, the back projection splicing unit adjusting method are applied in back projection splicing unit as shown in the figure.The back projection splicing Unit adjusting method, including:

Step 701, the back projection parameter of back projection splicing unit is obtained.

Back projection parameter include the width of screen unit, projector projection ratio and splicing seams width.

Step 702, according to back projection parameter regulation projector and reflection subassembly, the projector and reflection subassembly after adjusting are full Foot preset condition be:The first light beam in the light beam that projector goes out injects screen unit, exceeds screen unit in light beam Indication range the second light beam through reflection subassembly reflect inject splicing seams in, and along the gap of splicing seams propagate.

In conclusion back projection splicing unit adjusting method provided in this embodiment, since back projection splicing unit can be with Automatically adjust projector and reflection subassembly according to back projection parameter input by user, adjusted manually without user projector and Reflection subassembly can improve the accuracy and efficiency of adjusting.

Referring to FIG. 8, it illustrates the methods of back projection splicing unit adjusting method provided by one embodiment of the present invention Flow chart, the back projection splicing unit adjusting method are applied in back projection splicing unit as shown in the figure.The back projection splicing Unit adjusting method, including:

Step 801, back projection parameter input by user is received by input unit, and back projection parameter is sent to control Unit.

Wherein, back projection parameter include the width of screen unit, projector projection ratio and splicing seams width.

Step 802, the initial range for calculating projector according to back projection parameter and the first formula by control unit, according to Back projection parameter and the second formula calculate the target range of projector, according to initial range and target range calculate displacement distance and Moving direction, control projector moves displacement distance in the second guide rail upper edge moving direction, and controls reflection subassembly and led first Rail upper edge moving direction moves displacement distance.

When initial range is the light beam whole injection screen unit of projector between projector and screen unit 101 Distance, target range are that the first light beam in the light beam of projector injects screen unit, and the second light beam in light beam is through reflection group The distance between splicing seams Nei Shi projectors and screen unit 101 are injected in part reflection.

First formula is y1=a × b, the second formula are y2=(a+2 × x) × b, y1For initial range, y2For target away from From.

Wherein, the description of initial range, target range, the first formula and the second formula refers in embodiment shown in Fig. 4 Description.

In conclusion back projection splicing unit adjusting method provided in this embodiment, since back projection splicing unit can be with Automatically adjust projector and reflection subassembly according to back projection parameter input by user, adjusted manually without user projector and Reflection subassembly can improve the accuracy and efficiency of adjusting.

Referring to FIG. 9, it illustrates the methods of back projection splicing unit adjusting method provided by one embodiment of the present invention Flow chart, the back projection splicing unit adjusting method are applied in back projection splicing unit as shown in the figure.The back projection splicing Unit adjusting method, including:

Step 901, back projection parameter input by user is received by input unit, and back projection parameter is sent to control Unit.

Wherein, back projection parameter include the width of screen unit, projector projection ratio and splicing seams width.

Step 902, the initial range for calculating projector according to back projection parameter and the first formula by control unit, according to Back projection parameter and the second formula calculate the target range of projector, according to initial range and target range calculate displacement distance and Moving direction;And the angular interval of the second light beam is calculated according to back projection parameter, third formula and the 4th formula, control first Frame rotation makes reflection subassembly be located in angular interval.

When initial range is the light beam whole injection screen unit of projector between projector and screen unit 101 Distance, target range are that the first light beam in the light beam of projector injects screen unit, and the second light beam in light beam is through reflection group The distance between splicing seams Nei Shi projectors and screen unit 101 are injected in part reflection.

First formula is y1=a × b, the second formula are y2=(a+2 × x) × b, y1For initial range, y2For target away from From;

Angular interval is (α1, α2), third formula is α1=arctan [a/ (2 × y2)], the 4th formula is α2=arctan [(a+2×x)/(2×y2)]。

Wherein, initial range, target range, the first formula, the second formula, third formula, the 4th formula and angular interval Description refer to the description in embodiment shown in fig. 5.

In conclusion back projection splicing unit adjusting method provided in this embodiment, since back projection splicing unit can be with Automatically adjust projector and reflection subassembly according to back projection parameter input by user, adjusted manually without user projector and Reflection subassembly can improve the accuracy and efficiency of adjusting.

It should be noted that:The back projection splicing unit that above-described embodiment provides is carrying out back projection splicing unit adjusting When, only the example of the division of the above functional modules, in practical application, above-mentioned function can be divided as needed With by different function module completions, i.e., the internal structure of back projection splicing unit is divided into different function modules, with complete At all or part of function described above.In addition, back projection splicing unit and back projection splicing that above-described embodiment provides Unit adjusting method embodiment belongs to same design, and specific implementation process refers to embodiment of the method, and which is not described herein again.

The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.

One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of back projection splicing unit, which is characterized in that the back projection splicing unit includes:Splice babinet, the splicing Screen unit is provided on one surface of babinet, the position opposite with the screen unit is provided with throwing in the splice box body Shadow machine is provided with reflection subassembly between the projector and the screen unit;
The first light beam in the light beam that the projector goes out injects the screen unit, exceeds the screen in the light beam Second light beam of the indication range of unit is reflected through the reflection subassembly to be injected in splicing seams, and is passed along the gap of the splicing seams It broadcasts, the splicing seams are caused by the splicing babinet and adjacent splicing box body splicing.
2. back projection splicing unit according to claim 1, which is characterized in that be provided on the side of the splicing babinet The outgoing beam of the transparent components of sealing, the reflection subassembly is injected through the transparent components in the splicing seams, described transparent Component is made of glass material.
3. back projection splicing unit according to claim 1, which is characterized in that
It is coated with diffuse-reflective material on the side of the splicing babinet, injects the light beam in the splicing seams through the diffusing reflection material Expect diffusing reflection, and is propagated along the gap;
Alternatively,
It is coated with metal on the side of the splicing babinet, injects the light beam in the splicing seams through the metallic reflection, and along institute State gap propagation;
Alternatively,
It is coated with dielectric reflection film on the side of the splicing babinet, injects the light beam in the splicing seams through the dielectric reflection film Reflection, and propagated along the gap.
4. back projection splicing unit according to any one of claims 1 to 3, which is characterized in that
The reflection subassembly is arranged on the first guide rail in the splice box body;Alternatively, the reflection subassembly is arranged first On holder, the first support is arranged on first guide rail, and the first support is fixing bracket or rotating bracket;
The projector is arranged on the second guide rail in the splice box body;Alternatively, the projector is arranged in second support On, the second support is arranged on second guide rail.
5. back projection splicing unit according to claim 4, which is characterized in that the back projection splicing unit further includes defeated Enter unit and control unit, described control unit is connected with the input unit, the reflection subassembly and the projector respectively;
The back projection parameter is sent to the control by the input unit for receiving back projection parameter input by user Unit, the back projection parameter include the width a of the screen unit, the projection ratio b of the projector and the splicing seams Width x;
Described control unit is used to calculate the initial range of the projector according to the back projection parameter and the first formula, according to The back projection parameter and the second formula calculate the target range of the projector, according to the initial range and the target away from From displacement distance and moving direction is calculated, control described in projector moving direction movement described in the second guide rail upper edge Displacement distance, and control reflection subassembly moving direction described in the first guide rail upper edge and move the displacement distance;
The initial range be when the light beam of the projector all injects the screen unit projector with it is described The distance between screen unit, the target range are that the first light beam in the light beam of the projector injects the screen list Member, the second light beam in the light beam reflect the projector and the screen list when injecting in splicing seams through the reflection subassembly The distance between member;
First formula is y1=a × b, second formula are y2=(a+2 × x) × b, the y1For the initial range, The y2For the target range.
6. back projection splicing unit according to claim 4, which is characterized in that the first support is rotation branch Frame, and the back projection splicing unit further includes input unit and control unit, described control unit is single with the input respectively First, the described reflection subassembly is connected with the projector;
The back projection parameter is sent to the control by the input unit for receiving back projection parameter input by user Unit, the back projection parameter include the width a of the screen unit, the projection ratio b of the projector and the splicing seams Width x;
Described control unit is used to calculate the initial range of the projector according to the back projection parameter and the first formula, according to The back projection parameter and the second formula calculate the target range of the projector, according to the initial range and the target away from From calculating displacement distance and moving direction;And calculate described second according to the back projection parameter, third formula and the 4th formula The angular interval of light beam, controlling the first support rotation makes the reflection subassembly be located in the angular interval;
The initial range be when the light beam of the projector all injects the screen unit projector with it is described The distance between screen unit, the target range are that the first light beam in the light beam of the projector injects the screen list Member, the second light beam in the light beam reflect the projector and the screen list when injecting in splicing seams through the reflection subassembly The distance between member;
First formula is y1=a × b, second formula are y2=(a+2 × x) × b, the y1For the initial range, The y2For the target range;
The angular interval is (α1, α2), the third formula is α1=arctan [a/ (2 × y2)], the 4th formula is α2 =arctan [(a+2 × x)/(2 × y2)]。
7. a kind of back projection splicing system, which is characterized in that the back projection splicing system includes at least two back projection splicings Unit, the back projection splicing unit are the back projection splicing unit as described in claim 1 to 6 is any.
8. a kind of back projection splicing unit adjusting method, which is characterized in that be applied to the back of the body as described in claim 1 to 6 is any It projects in concatenation unit, the method includes:
Obtain the back projection parameter of the back projection splicing unit;
According to projector and the reflection subassembly described in the back projection parameter regulation, the projector after adjusting and described anti- Penetrating the preset condition that component meets is:The first light beam in the light beam that the projector goes out injects the screen unit, institute The second light beam for stating the indication range beyond the screen unit in light beam is reflected through the reflection subassembly in injection splicing seams, and It is propagated along the gap of the splicing seams.
9. according to the method described in claim 8, it is characterized in that, being applied to back projection splicing list as claimed in claim 5 In member;
The back projection parameter for obtaining the back projection splicing unit, including:User's input is received by the input unit Back projection parameter, and the back projection parameter is sent to described control unit, the back projection parameter includes the screen Width a, the projection ratio b of the projector and the width x of the splicing seams of unit;
It is described according to projector and the reflection subassembly described in the back projection parameter regulation, including:Pass through described control unit The initial range that the projector is calculated according to the back projection parameter and the first formula, according to the back projection parameter and second Formula calculates the target range of the projector, and displacement distance and movement are calculated according to the initial range and the target range Direction controls projector moving direction described in the second guide rail upper edge and moves the displacement distance, and described in control Reflection subassembly moving direction described in the first guide rail upper edge moves the displacement distance;
The initial range be when the light beam of the projector all injects the screen unit projector with it is described The distance between screen unit, the target range are that the first light beam in the light beam of the projector injects the screen list Member, the second light beam in the light beam reflect the projector and the screen list when injecting in splicing seams through the reflection subassembly The distance between member;
First formula is y1=a × b, second formula are y2=(a+2 × x) × b, the y1For the initial range, The y2For the target range.
10. according to the method described in claim 8, it is characterized in that, being applied to back projection splicing list as claimed in claim 6 In member;
The back projection parameter for obtaining the back projection splicing unit, including:User's input is received by the input unit Back projection parameter, and the back projection parameter is sent to described control unit, the back projection parameter includes the screen Width a, the projection ratio b of the projector and the width x of the splicing seams of unit;
It is described according to projector and the reflection subassembly described in the back projection parameter regulation, including:Pass through described control unit The initial range that the projector is calculated according to the back projection parameter and the first formula, according to the back projection parameter and second Formula calculates the target range of the projector, and displacement distance and movement are calculated according to the initial range and the target range Direction;And the angular interval of second light beam is calculated according to the back projection parameter, third formula and the 4th formula, control institute Stating first support rotation makes the reflection subassembly be located in the angular interval;
The initial range be when the light beam of the projector all injects the screen unit projector with it is described The distance between screen unit, the target range are that the first light beam in the light beam of the projector injects the screen list Member, the second light beam in the light beam reflect the projector and the screen list when injecting in splicing seams through the reflection subassembly The distance between member;
First formula is y1=a × b, second formula are y2=(a+2 × x) × b, the y1For the initial range, The y2For the target range;
The angular interval is (α1, α2), the third formula is α1=arctan [a/ (2 × y2)], the 4th formula is α2 =arctan [(a+2 × x)/(2 × y2)]。
CN201710130660.5A 2017-03-07 2017-03-07 back projection splicing unit, system and back projection splicing unit adjusting method CN106647130B (en)

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