CN105162927B - Alignment method, Projection Display module and the mobile electronic device of multiple projected images - Google Patents
Alignment method, Projection Display module and the mobile electronic device of multiple projected images Download PDFInfo
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- CN105162927B CN105162927B CN201510673025.2A CN201510673025A CN105162927B CN 105162927 B CN105162927 B CN 105162927B CN 201510673025 A CN201510673025 A CN 201510673025A CN 105162927 B CN105162927 B CN 105162927B
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Abstract
The invention provides a kind of alignment method of the image of N number of projection device projection, it includes step：S1, n-th of projection device project described image to the viewing area；Whether S2, the border area for detecting the viewing area brightness are not less than the brightness of the border area of described image；If S3, the viewing area border area brightness be less than described image border area brightness, position adjustment, and return to step S1 are carried out to n-th of projection device；If S4, the viewing area border area brightness not less than the brightness of the border area of described image, n=n+1, and judge whether n is less than or equal to N；If S5, n are less than or equal to N, return to step S1；If S6, n are more than N, the alignment method terminates.Present invention also offers a kind of Projection Display module and mobile electronic device.The alignment method of the present invention is aligned by the boundary characteristic unique to bit image, improves the efficiency and accuracy of projected image contraposition.
Description
Technical field
The invention belongs to electronic technology field, specifically, is related to a kind of alignment method of multiple projected images, projection shows
Show module and mobile electronic device.
Background technology
At present, existing mobile electronic device (injection mobile phone, tablet personal computer, can only wrist-watch) is usually to be shown by touching
Screen, battery, mainboard and casing etc. form；Wherein, touch display screen is one of mostly important device, is to realize man-machine interaction institute
Required device.
With the demand in market, mobile electronic device develops to the touch display screen direction with higher-definition, high brightness,
But the volume due to touch display screen in itself is bigger, it not only defines the region of display, and is easier to crush.Cause
This, the cost height of display screen, display are dumb, and radiation is mostly its unavoidable shortcoming.
Projection display technique is current, and a kind of following main Display Technique.It is fast with projection display technique
Exhibition is hailed, the various electronic products with projection display technique are come out one after another.And the electronic product with projection display technique
Volume is less and less, and price also gradually reduces, therefore application of the projection display technique on electronic product will be further extensive.
Projection device is usually a fixed angle with the angle on perspective plane in projection process, and now projection device can
With by the projection of the ratios such as image on the projection surface.If projector equipment not in the angle of acquiescence, can cause to project with perspective plane
Projected image there is shape distortion or distortion.If multiple projection devices coordinate display image, image is not resolved
Alignment issues, just occur the multiple ghost images of image, greatly influence the quality and readability of projected image.
In the prior art, the projected image come out to projection mainly passes through manual calibration, passes through craft
Calibrating wastes time and energy and can not obtain accurate calibration result.Certainly, also there is the method for realizing automatic aligning in the prior art, but
These methods are relatively complicated, and the contraposition efficiency comparison to projected image is low.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of alignment method of multiple projected images, projection
Display module and mobile electronic device, it can simpler, easily realize multiple projected image contrapositions.
According to an aspect of the present invention, there is provided a kind of alignment method of the image of N number of projection device projection, wherein, respectively
Individual projection device projects an identical image a to viewing area, and described image covers the viewing area, the side of described image
It is more than the brightness in the region within its border area along the brightness in region；The alignment method includes step：S1, n-th of projection
Device projects described image to the viewing area；Whether S2, the border area for detecting the viewing area brightness are not less than
The brightness of the border area of described image；If S3, the viewing area border area brightness be less than described image edge
The brightness in region, then position adjustment, and return to step S1 are carried out to n-th of projection device；If S4, the viewing area
The brightness of border area is not less than the brightness of the border area of described image, then n=n+1, and judge whether n is less than or equal to N；
If S5, n are less than or equal to N, return to step S1；If S6, n are more than N, the alignment method terminates.
Further, the viewing area rectangular shaped；Wherein, the border area of the viewing area includes rectangle
Four corner regions.
Further, the viewing area circular in shape；Wherein, the border area of the viewing area is included along circle
Four regions that the radians such as week are set.
Further, in step s3, adjust the position that vertical vertical and horizontal left and right is carried out to n-th of projection device
It is whole.
According to another aspect of the present invention, a kind of Projection Display module is additionally provided, it includes：The chamber that two opposite ends open
Body and the platysome for closing one of two opposing open end；Display screen, be arranged on the inner surface of the platysome or
Close the another of two opposing open ends of the cavity；Multiple projection devices, it is arranged on the cavity inner wall, wherein, it is each
Projection device is used for projected image to the display screen；Wherein, the Projection Display module is made using above-mentioned alignment method
The multiple images that each projection device is projected on the display screen align and coincide.
Further, brightness measuring device for camera is set in the fringe region of the display screen, the brightness measuring device for camera is used for
Measure the brightness of the fringe region of the display screen.
Further, the rectangular shape of the display screen；Wherein, the border area of the display screen includes four angles of rectangle
Settle in an area domain, a brightness measuring device for camera is respectively provided with four corner regions of the display screen.
Further, the display screen is in rounded shape；Wherein, the border area of the display screen includes circumferentially waiting arc
Four regions set are spent, a brightness measuring device for camera is respectively provided with four regions for waiting radian to set of the display screen.
The present invention also provides a kind of mobile electronic device, and it includes above-mentioned Projection Display module.
Beneficial effects of the present invention：A kind of alignment method of the image of N number of projection device projection provided by the invention, is solved
The problem of projected image is overlapping, it is simpler compared to existing alignment method, convenient, pass through special to the unique border of bit image
Sign is aligned, and improves the efficiency and accuracy of projected image contraposition.In addition, the mobile electronic device of the present invention make use of throwing
Shadow Display Technique carries out the display of image, not only simplify design, reduces the volume of equipment, while the mode shown is also relative
Flexibly, the size of the image of Projection Display can be adjusted at any time.
Brief description of the drawings
The following description carried out in conjunction with the accompanying drawings, above and other aspect, feature and the advantage of embodiments of the invention
It will become clearer, in accompanying drawing：
Fig. 1 is the flow chart of the alignment method of the image projected according to N number of projection device of the present invention；
Fig. 2 is the schematic perspective view of the mobile electronic device according to an embodiment of the invention with Projection Display module；
Fig. 3 be in Fig. 2 A-A to sectional view；
Fig. 4 is table of two images in radiation shield of relative two projection devices projection according to an embodiment of the invention
The schematic diagram aligned and coincided on face；
Fig. 5 is the three-dimensional signal of the mobile electronic device with Projection Display module according to another embodiment of the present invention
Figure；
Fig. 6 is the three-dimensional signal of the mobile electronic device with Projection Display module according to still another embodiment of the invention
Figure；
Fig. 7 be in Fig. 6 A-A to sectional view；
Fig. 8 is the three-dimensional signal of the mobile electronic device with Projection Display module according to still another embodiment of the invention
Figure.
Embodiment
Hereinafter, with reference to the accompanying drawings to embodiments of the invention are described in detail.However, it is possible to come in many different forms real
Apply the present invention, and the specific embodiment of the invention that should not be construed as limited to illustrate here.Conversely, there is provided these implementations
Example be in order to explain the present invention principle and its practical application, so as to others skilled in the art it will be appreciated that the present invention
Various embodiments and the various modifications for being suitable for specific intended application.Identical label can be used in entire disclosure and accompanying drawing
Represent identical element.
Fig. 1 is the flow chart of the alignment method of the image projected according to N number of projection device of the present invention.Here, it is necessary to say
Bright, each projection device projects an identical image a to viewing area, and described image covers the viewing area, and
The brightness of the border area of setting described image is more than or the brightness much larger than the region within its border area.It is for example, described
The brightness of the border area of image is bright, and the brightness in the region within the border area of described image is dark.
Reference picture 1, the alignment method comprise the following steps：
S1, n-th of projection device project described image to viewing area；Wherein, n=1.In step sl, viewing area
Shape can rectangular shaped or round-shaped, but the invention is not limited in this.
Whether S2, the border area for detecting the viewing area brightness are not less than the bright of the border area of described image
Degree.In step s 2, if the shape rectangular shaped of viewing area, the border area of the viewing area includes the four of rectangle
Individual corner regions；But the present invention is not restricted to this, for example, the border area of the viewing area may also comprise two of rectangle
Diagonal corner regions.Or in step s 2, if the shape circular in shape of viewing area, the side of the viewing area
Four regions for including circumferentially waiting radian to set along region；But the present invention is not restricted to this, for example, the viewing area
Border area may also comprise circumferentially wait radian set three regions.
If S3, the viewing area border area brightness be less than described image border area brightness, to institute
State n-th of projection device and carry out position adjustment, and return to step S1.In step s3, n-th of projection device can be carried out
The position adjustment of vertical vertical and horizontal left and right, to adjust the projection angle and projector distance of n-th of projection device.
If S4, the viewing area border area brightness not less than described image border area brightness, n=
N+1, and judge whether n is less than or equal to N.
If S5, n are less than or equal to N, return to step S1.
If S6, n are more than N, the alignment method terminates.
How will make each throwing using above-mentioned alignment method to the mobile electronic device with Projection Display module below
The multiple images that shadow device is projected on display screen, which align and coincide, to be described in detail.
Fig. 2 is the schematic perspective view of the mobile electronic device according to an embodiment of the invention with Projection Display module；
Fig. 3 be in Fig. 2 A-A to sectional view.
Reference picture 2 and Fig. 3, mobile electronic device according to an embodiment of the invention include：Apparatus body 20 and it is embedded in
Projection Display module 10 in apparatus body 20.In the present embodiment, the upward one side of designated equipment body 20 is upper surface；Its
In, the upper surface of apparatus body 20 is recessed to form a groove 21, and Projection Display module 10 is embedded in groove 21.
Projection Display module 10 according to an embodiment of the invention includes：Projection device 11, radiation shield 12, brightness measurement dress
Put the cavity of 13, two opposite ends opening and the platysome of one of closing two opposing open end.In the present embodiment, groove
21 groove inwall 211 forms the cavity that two opposite end opens, and the bottom 212 of groove 21, which is formed, closes two opposing open
The platysome at one of end.
Projection device 11 is arranged on groove inwall 211, and projection device 11 is used to project the image that will be shown.Radiation shield
12 are arranged on the bottom 212 of groove 21.Projection device 11 projects the image that will show to radiation shield 12, and radiation shield 12 is used
In the reflective display image.In addition, the position that projection device 11 can carry out above and below vertical or horizontal left and right on groove inwall 211 is adjusted
It is whole.
In the present embodiment, 12 overall rectangular shaped of radiation shield.Set respectively in four corner regions of radiation shield 12
One brightness measuring device for camera 13, certainly, the present invention is not restricted to this, for example, also can be at two diagonal angles of radiation shield 12
Domain of settling in an area sets a brightness measuring device for camera 13 respectively.
In the present embodiment, it is in square tube shape that groove 21 is overall, i.e. four groove inwalls 211 surround that to form cross section rectangular
The groove 21 of shape.Certainly, this is only one embodiment of the present of invention, and the present invention is not restricted to this.
In the present embodiment, respectively in first-class three projection devices 11 of interval setting of two longer groove inwalls 211, and divide
Two projection devices 11 are arranged at intervals not on two shorter groove inwalls 211.As another embodiment of the present invention, such as scheme
Shown in 4, when groove 21 is overall cylindrical, four projection devices 11 can be set along the cross-sectional circumferential of cylinder at equal intervals.When
So, in the present invention, the setting quantity of projection device 11 is not limited thereto.For example, set on any one groove inwall 211
One projection device 11 can also realize projection-display image.
Further, the projection device 11 set on two relative groove inwalls 211 corresponds, that is, is symmetrical arranged.For example,
Three projection devices 11 on one of two longer groove inwalls 211 respectively with two longer groove inwalls 211 it is another on
Three projection devices 11 are relatively corresponding one by one.Similarly, two projection devices 11 on one of two shorter groove inwalls 211 divide
Not with two relatively end groove inwall 211 it is another on two projection devices 11 it is relatively corresponding one by one.Certainly, this is only the present invention
One embodiment, the invention is not limited in this, such as the projection device 11 set on two relative groove inwalls 211 can also
It is non-be symmetrical arranged.
Moreover it is preferred that the radiation shield 12 in the present embodiment is the radiation shield with touch controllable function, but without such as
The display devices such as the pixel cell in liquid crystal panel, it only has the function of touch controllable function and reflection light.For example, the present embodiment
In radiation shield 12 be the transparency glass plate with touch control component or nontransparent pcb board.
Preferably, the brightness measuring device for camera in the present embodiment has four, is separately positioned on four corner regions of radiation shield 12
Domain.The present invention is not limited the number and location of brightness measuring device for camera, and it can be arbitrary number, can also be arranged on reflection
Other border areas of screen 12, for example, being arranged on the center section at the edge of radiation shield 12.
Hereinafter, how two images for projecting two relative projection devices 11 using the alignment method described in Fig. 1 exist
Radiation shield 12, which aligns and coincides, to be described.It should be appreciated that more images of more projection devices 11 projection can also
Aligned and coincided with the alignment method described in Fig. 1.Here, suppose that reflection is completely covered in the image that each projection device 11 projects
Screen 12.Certainly, it should be noted that the image that each projection device 11 projects also can partly cover radiation shield 12.
Fig. 4 is table of two images in radiation shield of relative two projection devices projection according to an embodiment of the invention
The schematic diagram aligned and coincided on face.
Reference picture 4, here, in paper, the projection device 11 positioned at left side is set as the first projection device 11, and incite somebody to action
Projection device 11 positioned at right side is set as the second projection device 11.
First, the first projection device 11 projects the first image to radiation shield 12.The first image rectangular shaped, and
The brightness of four corner regions of first image is more than the brightness in other regions.
Then, four luminance detection devices 13 positioned at 12 4 corner regions of radiation shield detect four angles of radiation shield 12
Settle in an area the brightness in domain, then judge whether the brightness of this four corner regions is not less than four corners of described first image respectively
The brightness in region.
Then, if the brightness of any one corner regions of radiation shield 12 is less than the corner regions of its corresponding first image
Brightness, then position adjustment is carried out to the first projection device 11, and project the first image again to radiation shield 12, until radiation shield
The brightness of 12 four corner regions is not less than the brightness of four corner regions of the first image.
Then, if the brightness of four corner regions of radiation shield 12 is not less than the bright of four corner regions of the first image
Degree, then the second projection device 11 is set to project the second image to radiation shield 12.The second image rectangular shaped, and this second
The brightness of four corner regions of image is more than the brightness in other regions.
Then, four luminance detection devices 13 positioned at 12 4 corner regions of radiation shield detect four angles of radiation shield 12
Settle in an area the brightness in domain, then judge whether the brightness of this four corner regions is not less than four corners of second image respectively
The brightness in region.
Then, if the brightness of any one corner regions of radiation shield 12 is less than the corner regions of its corresponding second image
Brightness, then position adjustment is carried out to the second projection device 11, and project the second image again to radiation shield 12, until radiation shield
The brightness of 12 four corner regions is not less than the brightness of four corner regions of the second image.
Finally, if the brightness of four corner regions of radiation shield 12 is not less than the bright of four corner regions of the second image
Degree, then it represents that the first image of the first projection device 11 projection and the second image of the second projection device 11 projection can align weight
Close.
As another embodiment of the present invention, as shown in figure 5, groove 21 can also be integrally cylindrical, i.e. groove inwall
211 around the groove 21 for forming circular in cross-section shape.12 overall circular in shape of radiation shield.Along the circumference of radiation shield 12
Deng radian, four luminance detection devices 13 are set；But the present invention is not restricted to this, for example, also can radiation shield 12 the arc such as circumference
Degree sets three luminance detection devices 13.Here, the image that projection device 11 is projected on radiation shield 12 also circular in shape.
It is as shown in Figure 6 and Figure 7, sharp unlike the embodiment shown in Fig. 4 as another embodiment of the invention
To the top 213 of the closed pockets 21 of transmission screen 15 of rectangular shaped, i.e., transmission screen 15 close the cavity two-phase it is split
Put the another of end.Projection device 11 is projected image onto on transmission screen 15, and transmission screen 15 shows image transmission.In the present embodiment
Transmission screen 15 be the transmission screen with touch controllable function, but without displays such as the pixel cells in liquid crystal panel
Part, it only has the function of touch controllable function and transmitted ray.For example, the transmission screen 15 in the present embodiment has touch control component
Transparency glass plate.
As another embodiment of the invention, as shown in figure 8, unlike the embodiment shown in Fig. 5, utilize with
The top 213 of the round-shaped closed pockets 21 of transmission screen 15, i.e. transmission screen 15 close the cavity two opposing open ends it
It is another.Projection device 11 is projected image onto on transmission screen 15, and transmission screen 15 shows image transmission.Transmission in the present embodiment
Screen 15 is the transmission screen with touch controllable function, but without display devices such as the pixel cells in liquid crystal panel, it is only
Function with touch controllable function and transmitted ray.For example, the transmission screen 15 in the present embodiment is the transparent glass for having touch control component
Glass plate.
In summary, according to an embodiment of the invention, solve the problems, such as that projected image is overlapping, compared to existing contraposition side
Method is simpler, convenient, is aligned by the boundary characteristic unique to bit image, improve projected image contraposition efficiency and
Accuracy.In addition, mobile electronic device of the invention make use of projection display technique to carry out the display of image, not only simplify
Design, reduces the volume of equipment, while the mode shown is also relatively flexibly, can adjust at any time Projection Display image it is big
It is small.
Although the present invention has shown and described with reference to specific embodiment, it should be appreciated by those skilled in the art that：
In the case where not departing from the spirit and scope of the present invention limited by claim and its equivalent, can carry out herein form and
Various change in details.
Claims (6)
- A kind of 1. Projection Display module, it is characterised in that including：The cavity and the platysome of one of closing two opposing open end that two opposite ends open；Display screen, be arranged on the inner surface of the platysome or two opposing open ends of the closing cavity it is another；N number of projection device, it is arranged on the cavity inner wall, wherein, each projection device is used for projected image to the display On screen；When the N number of image projected to N number of projection device on the display screen aligns and coincides, each projection device projection One identical image covers the display screen to the display screen, described image, and the brightness of the border area of described image is more than The brightness in the region within its border area, the image projected using following alignment method to N number of projection device are carried out pair Position overlaps, and the alignment method includes step：S1, n-th of projection device project described image to the display screen；Whether S2, the border area for detecting the display screen brightness are not less than the brightness of the border area of described image；If the brightness of the border area of S3, the display screen is less than the brightness of the border area of described image, to described n-th Projection device carries out position adjustment, and return to step S1；If the brightness of the border area of S4, the display screen not less than described image border area brightness, n=n+1, and Judge whether n is less than or equal to N；If S5, n are less than or equal to N, return to step S1；If S6, n are more than N, the alignment method terminates.
- 2. Projection Display module according to claim 1, it is characterised in that set in the fringe region of the display screen bright Measurement apparatus is spent, the brightness measuring device for camera is used for the brightness for measuring the fringe region of the display screen.
- 3. Projection Display module according to claim 2, it is characterised in that the rectangular shape of display screen；Wherein, it is described The border area of display screen includes four corner regions of rectangle, is respectively provided with four corner regions of the display screen described in one Brightness measuring device for camera.
- 4. Projection Display module according to claim 2, it is characterised in that the display screen is in rounded shape；Wherein, it is described The border area of display screen includes four regions for circumferentially waiting radian to set, wait radian setting the four of the display screen Individual region is respectively provided with a brightness measuring device for camera.
- 5. Projection Display module according to claim 1, it is characterised in that in step s3, further, to described N projection device carries out the position adjustment of vertical vertical and horizontal left and right.
- 6. a kind of mobile electronic device, it is characterised in that including the Projection Display module described in any one of claim 1 to 5.
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| CN201510673025.2A CN105162927B (en) | 2015-10-15 | 2015-10-15 | Alignment method, Projection Display module and the mobile electronic device of multiple projected images |
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| CN105162927B true CN105162927B (en) | 2018-03-20 |
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| CN115248605B (en) * | 2022-09-22 | 2022-12-27 | 深圳市巨力方视觉技术有限公司 | Motion control visual alignment method and system |
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