CN202257009U - Light-splitting reflection display device - Google Patents
Light-splitting reflection display device Download PDFInfo
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- CN202257009U CN202257009U CN2011203200586U CN201120320058U CN202257009U CN 202257009 U CN202257009 U CN 202257009U CN 2011203200586 U CN2011203200586 U CN 2011203200586U CN 201120320058 U CN201120320058 U CN 201120320058U CN 202257009 U CN202257009 U CN 202257009U
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- China
- Prior art keywords
- display device
- reflective mirror
- optical splitter
- light
- projection
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Abstract
The utility model relates to a light-splitting reflection display device, belonging to the technical field of display devices. The light-splitting reflection display device comprises a projection screen, wherein at least one projection display unit is arranged behind the projection screen, and the projection display unit comprises a projection unit shell; at least one projector is fixedly arranged in the projection unit shell; a light splitter for scattering a light source is arranged in front of a lens of the projector, and at least one reflector group which reflects each path of light sources scattered in the light splitter to the projection screen is fixedly arranged in the projection unit shell; and the reflector group at least contains one reflector. The light-splitting reflection display device disclosed by the utility model is simple in structure and reasonable in design, and compared with the conventional products, the thickness of a display unit is reduced so that the display unit becomes lighter, and a short-focus lens is not used so that the cost is reduced by over 20 percent under the same condition.
Description
Technical field
The utility model belongs to the display device technology field, is specifically related to a kind of beam split reflection display device.
Background technology
General orthogonal projection and the back projection dual mode of adopting in the present projection display system at home and abroad, the influence that receives surround lighting is bigger, therefore uses and receives bigger restriction; The mode of back projection is in order to reduce the influence of surround lighting, and the mode that generally all adopts the display unit of individual packages to be spliced into a large screen display realizes, such as the present popular DLP concatenation unit typical case that is exactly this mode.But, adopt this display mode still to have following two shortcomings:
One of which, since each display unit physically all be independently; Oneself independently encapsulation is separately all arranged; Like this when two or more display units are spliced into a large screen display, formed bigger space in the jointing positions of screen, influenced the visual effect of picture;
Two, display unit is in order to reduce the thick of whole screen; Add between projector and projector curtain that generally short-focus mirror head and a slice reflective mirror realize: but this mode has adopted short-focus mirror head cost than higher; Light is bigger through strength retrogression behind the short-focus mirror head simultaneously, anamorphose is more serious, is not suitable for using under the relatively weak situation of projector light.
After light came out from projector in the described existing projection display system of Fig. 9, main collection was in the b zone; Wherein c zone and a zone do not have light to pass through, and averaging projection's distance of whole projector is L1 and L2 sum; Constant in projector specification, image display area area, cancel simultaneously under the situation of short-focus mirror head, keep or reduce thickness H, can only increase the distance that projector is walked to light between the screen.But the size dimension of whole housing is fixed, and can not simply directly strengthen the size of L1 and L2.
The utility model content
To the problem that prior art exists, the purpose of the utility model is that design provides a kind of production cost low, easy for installation, the picture good in visual, and the while can be satisfied the technical scheme of the super large display device of users' individual demand.
Described beam split reflection display device; Comprise projection screen; It is characterized in that described projection screen rear is provided with a projection display unit at least; Described projection display unit comprises the projecting cell shell, fixedly installs a projector in the projecting cell shell at least, and the optical splitter that light source is dispersed is set before the camera lens of projector; And in the projecting cell shell, fixedly install one group of reflective mirror group on each road source reflection to projection screen of dispersing in optical splitter at least, contain a reflective mirror in the reflective mirror group at least.
Described beam split reflection display device is characterized in that described projecting cell shell is spheroid, ellipsoid, rectangular parallelepiped, square or polyhedron.
Described beam split reflection display device, the distance that it is characterized in that described projection display unit and projection screen is 0～150cm.
Described beam split reflection display device is characterized in that being provided with between described projector and the optical splitter polarized light piece I.
Described beam split reflection display device is characterized in that the projection light source in the described projector is metal halogen bulb, UHE bulb, UHP bulb, xenon lamp bulb, LED bulb or LASER Light Source bulb.
Described beam split reflection display device is characterized in that between the reflective mirror in the described reflective mirror group polarized light piece II being set.
Described beam split reflection display device is characterized in that between the reflective mirror in the described reflective mirror group miniature optical splitter being set.
Described beam split reflection display device is characterized in that described reflective mirror is polygon, circular arc, semicircular arc, fan-shaped or concave plane structure, and the center is epirelief, recessed or planar structure, and its surrounded surface has not reflector layer.
Described beam split reflection display device is characterized in that described optical splitter comprises the optical splitter shell and is arranged on the light-emitting window on each face of optical splitter shell, and one group of miniature reflective mirror that can source reflection be gone out each light-emitting window is set in the described optical splitter shell.
Designed to shortcoming the utility model of the prior art and to have made full use of a district and c district, and in identical zone, let different light repeatedly parallel back and forth, intersect through increasing the device of the distance that projector walks to light between the screen.
The following method of concrete employing: the light that comes out projector passes through an optical splitter, and demultiplexing light throws these light from a plurality of different directions; Simultaneously according to the actual conditions in the projecting cell shell; Arrange different reflective mirrors, the angle of adjustment reflective mirror projects the other reflective mirror in the projecting cell shell; Simultaneously between reflective mirror, can increase miniature optical splitter; Control the size of reflection ray, like this light just in the projecting cell shell between the reflective mirror through repeatedly the reflection, increased projector distance.
The beam split reflection display device of the utility model, simple in structure, reasonable in design, compare the thickness that reduces display unit with existing product, make display unit become lighter and handier, cancelled the short-focus mirror head, make that cost has reduced more than 20% under the identical situation.
Description of drawings
Fig. 1 is the structural representation of beam split reflection display device in the utility model;
Fig. 2 is the structural representation of projection display unit in the utility model;
Fig. 3 is the vertical view of reflective mirror in the utility model;
Fig. 4 is that the middle part is the side view of the reflective mirror of convex configuration in the utility model;
Fig. 5 is that the middle part is the side view of the reflective mirror of concave configuration in the utility model;
Fig. 6 is that the middle part is the side view of the reflective mirror of planar structure in the utility model;
Fig. 7 is the structural representation of optical splitter in the utility model;
Fig. 8 is the schematic diagram of beam split reflection display device in the utility model;
Fig. 9 is the structural representation of existing projection display unit;
Figure 10 is the synoptic diagram of image cracking in the utility model.
Among the figure: the 1-projection screen; 2-projecting cell shell; The 3-optical splitter; The miniature reflective mirror of 301-; 302-optical splitter shell; The 303-light-emitting window; 4-polarized light piece I; The 5-projection light source; The 6-projector; The 7-reflective mirror; 701-is reflector layer not; 8-polarized light piece II, the miniature optical splitter of 9-.
Embodiment
Further specify the utility model below in conjunction with Figure of description.
Like Fig. 1, shown in 2 and 8; The beam split reflection display device comprises projection screen 1 and projection display unit; Projection display unit can be independently one; Horizontal, the vertical and/or stack formation of identical projection display unit also can be arranged, and the distance between projection display unit and the projection screen 1 is 0～150cm.
Each projection display unit comprises projecting cell shell 2, and the projecting cell shell can be arranged to spheroid, ellipsoid, rectangular parallelepiped, square or other gengon structure as required, and shape is abundant.A projector 6 is set in the projecting cell shell 2 at least, and the projection light source 5 of projector 6 can adopt metal halogen bulb, UHE bulb, UHP bulb, xenon lamp bulb, LED bulb or LASER Light Source bulb.Optical splitter 3 is set before the camera lens of every projector 6.The structure of optical splitter 3 is as shown in Figure 7; Optical splitter 3 comprises optical splitter shell 302, is arranged on light-emitting window 303 and miniature reflective mirror 301 on optical splitter shell 302 each face; Miniature reflective mirror 301 can be provided with many groups; At least comprise a miniature reflective mirror 301 in every group, miniature reflective mirror 301 goes out each light-emitting window 303 with source reflection.
Shown in Fig. 3-6, the reflective mirror 7 in the utility model is polygon, circular shape, half-circle-arc shape, fan-shaped or concave plane structure, and the center is epirelief, recessed or planar structure, and surrounded surface has the not reflective mirror of reflector layer 701.Can adjust the size and Orientation of reflective light through reflective mirror 7 epireliefs, recessed or planar structure, the reasonably combined effect of playing miniature short-focus mirror head of the reflective mirror of epirelief, concave configuration makes that in short distance image formation by rays is clear.Surrounded surface has not reflector layer 701, can reduce the interference of interference of light edge and diffraction.
The utility model passes through an optical splitter 3 to the light that projector 7 comes out, and demultiplexing light throws these light from a plurality of different directions; Simultaneously according to the actual conditions in the projecting cell shell 2; Arrange different reflective mirrors 7, the angle of adjustment reflective mirror 7 projects on the other reflective mirror 7 in the projecting cell shell 2; Between reflective mirror 7, can increase simultaneously miniature optical splitter 9; Control the size of reflection ray, like this light just in projecting cell shell 2 between the reflective mirror through repeatedly the reflection, increased projector distance.The structure of miniature optical splitter 9 is identical with optical splitter 3
Method below the device of the utility model combines is carried out Video processing: the light that utilizes optical splitter 3 to decompose projector 6 ejaculations becomes a branch of above sub-light shafts; Incide the reflective mirror group of appointment by different directions, and be utilized in the size that the miniature optical splitter 9 that is provided with between the reflective mirror group is regulated light shafts, the light that makes projector 6 penetrate finally can cover the area of projection display unit delivery outlet; Utilize optical splitter 3, the original complete image in miniature optical splitter 9 backs to be divided into the subgraph photo of a plurality of dispersions; The subgraph photo of these dispersions is through the reflective mirror group; The meeting at projection screen 1 imaging back image at last overlaps, entanglement, distortion need be carried out correction process to it, it is characterized in that Video processing may further comprise the steps:
1) image cracking
Beam split zone effect according to optical splitter 3 is carried out the cracking of first level, promptly decomposes original image I, and the image after the decomposition is I
1, I
2I
n, its size, shape, quantity are determined by the beam split shape of optical splitter 3; The image that utilizes 9 pairs of optical splitters of miniature optical splitter 3 to decompose then carries out follow-up cracking, and the picture shape that miniature optical splitter 9 decomposes is by the beam split shape decision of miniature optical splitter 9; (I shown in figure 10
1, I
2I
N,I
11, I
12I
1nDeng concrete shape by the concrete beam split shape decision of optical splitter: can make rectangle, polygon, circle, fan-shaped, other irregular shapes).
2) pixel coordinate, chromatic aberration correction:
The image of going up imaging at projection screen (1) is that the pixel coordinate rectification that the cracking original image is formed picture through reflective mirror obtains: original image I decomposes the coordinate that each bar limit of image-region, each angle are extracted in the back, and promptly the drift angle coordinate of original image is PI (x
1, y
1), PI (x
2, y
2), PI (x
3, y
3), PI (x
4, y
4); The coordinate of four edges is PTIL
1, PTIL
2, PTIL
3And PTIL
4, PTIL wherein
1, PTIL
2, PTIL
3And PTIL
4Be matrix; The drift angle I of each number of sub images after the cracking
1, I
2I
nCoordinate PI
1(x
1, y
1), PI
1(x
2, y
2), PI
1(x
3, y
3), PI
1(x
4, y
4) ... PI
n(x
1, y
1), PI
n(x
2, y
2), PI
n(x
3, y
3), PI
n(x
4, y
4); The coordinate on many limits is PTI
1L
1, PTI
1L
2, PTI
1L
3, PTI
1L
4PTI
nL
1, PTI
nL
2, PTI
nL
3, PTI
nL
4Given zones of different I
1, I
2I
nShow different sample images, adopt image P and original sample image I after high-definition camera or camera show to compare; Confirm P
nAnd I
nRegional corresponding relation; Original sample image value and measured value substitution coordinate transformation function F I
1(x), anamorphose correction function BFI
1(x), chromatic aberration correction function EFI
1(x); Obtain corresponding coefficient and parameter A, B, C, b, c, h, p
1, p
2, p
3, t
1, t
2And t
3
FI
1(x)=A* [x] * p
1 T1+ b wherein A is the matrix of 2*2
, b is a constant, p
1For the weighting coefficient interval is [1,1], t
1Interval is (0,2);
BFI
1(x)=B* [x] * p
2 T2+ c wherein B is the matrix of m*n
, c is a constant, p
2For the weighting coefficient interval is [1,1], t
2Interval is (0,2);
EFI
1(x)=E* [x] * p
3 T3+ h wherein E is the matrix of m*n
, h is a constant, p
3For the weighting coefficient interval is [1,1], t
3Interval is (0,2);
The original image substitution coordinate transformation function F I that will show
1(x), anamorphose correction function BFI
1(x), chromatic aberration correction function EFI
1(x); Obtain converted image behind the corresponding transformed value;
3) re-assembly image:
To the image of cracking, carry out assembling splicing again according to new coordinate system;
4) if image has follow-up cracking operation, be used as original image repeating step 2 to the area image of cracking) and 3) operation; By that analogy up to all cracking EOs;
5) the spliced image display packing of a plurality of display units of rectification:
Carry out a plurality of display unit images after single display unit image is corrected well and correct, the concrete edge that can adopt doubling of the image zone merges, the intersection stack shows.The edge in doubling of the image zone merges, the intersection stack shows the existing method that is.
Embodiment 2
The all polarized light piece I 4 and polarized light piece II 8 of cancellation on the basis of embodiment 1, other structure is identical with embodiment 1, under the smaller condition of ectocine, also can obtain reasonable image effect.
The a plurality of projector of configuration on same display unit on the basis of embodiment 1 after the original image process three-dimensional imaging algorithm process, carry out the method for processing video frequency of the utility model again and correct, and image-display units ability display effect is stereographic map preferably.
On the basis of embodiment 1,2 and 3, cancel optical splitter shell 302 respectively; Be directly fixed on light-emitting window 303 and miniature reflective mirror 301 on the projecting cell shell 2 or on the adjacent with it parts, under the smaller condition of ectocine, also can obtain reasonable image effect.
Claims (9)
1. beam split reflection display device; Comprise projection screen (1); It is characterized in that described projection screen (1) rear is provided with a projection display unit at least; Described projection display unit comprises projecting cell shell (2), fixedly installs a projector (6) in the projecting cell shell (2) at least, and the optical splitter (3) that light source is dispersed is set before the camera lens of projector (6); And in projecting cell shell (2), fixedly install one group at least with the reflective mirror group on each road source reflection to projection screen (1) of dispersing in the optical splitter (3), contain a reflective mirror (7) in the reflective mirror group at least.
2. beam split reflection display device as claimed in claim 1 is characterized in that described projecting cell shell (2) is spheroid, ellipsoid, rectangular parallelepiped, square or polyhedron.
3. beam split reflection display device as claimed in claim 1, the distance that it is characterized in that described projection display unit and projection screen (1) is 0～150cm.
4. beam split reflection display device as claimed in claim 1 is characterized in that between described projector (6) and the optical splitter (3) polarized light piece I (4) being set.
5. beam split reflection display device as claimed in claim 1 is characterized in that the projection light source (5) in the described projector (6) is metal halogen bulb, UHE bulb, UHP bulb, xenon lamp bulb, LED bulb or LASER Light Source bulb.
6. beam split reflection display device as claimed in claim 1 is characterized in that between the reflective mirror (7) in the described reflective mirror group polarized light piece II (8) being set.
7. beam split reflection display device as claimed in claim 1 is characterized in that between the reflective mirror (7) in the described reflective mirror group miniature optical splitter (9) being set.
8. beam split reflection display device as claimed in claim 1; It is characterized in that described reflective mirror (7) is polygon, circular arc, semicircular arc, fan-shaped or concave plane structure; The center is epirelief, recessed or planar structure, and its surrounded surface has not reflector layer (701).
9. beam split reflection display device as claimed in claim 1; It is characterized in that described optical splitter comprises optical splitter shell (302) and is arranged on the light-emitting window (303) on each face of optical splitter shell (302), one group of miniature reflective mirror (301) that can source reflection be gone out each light-emitting window (303) is set in the described optical splitter shell (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203200586U CN202257009U (en) | 2011-08-30 | 2011-08-30 | Light-splitting reflection display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203200586U CN202257009U (en) | 2011-08-30 | 2011-08-30 | Light-splitting reflection display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257009U true CN202257009U (en) | 2012-05-30 |
Family
ID=46118225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203200586U Expired - Fee Related CN202257009U (en) | 2011-08-30 | 2011-08-30 | Light-splitting reflection display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257009U (en) |
-
2011
- 2011-08-30 CN CN2011203200586U patent/CN202257009U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20160830 |