CN101762965A - Back projection splicing display screen - Google Patents
Back projection splicing display screen Download PDFInfo
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- CN101762965A CN101762965A CN 200910193830 CN200910193830A CN101762965A CN 101762965 A CN101762965 A CN 101762965A CN 200910193830 CN200910193830 CN 200910193830 CN 200910193830 A CN200910193830 A CN 200910193830A CN 101762965 A CN101762965 A CN 101762965A
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- back projection
- lens
- display screen
- splicing
- splicing display
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Abstract
The invention provides a back projection splicing display screen which has no or less screens (1) and is arranged for displaying back projection. The back projection splicing display screen comprises a plurality of spliced back projection cabinets (2) and one or more screen panel (11), wherein the back projection cabinet (2) comprises a box (22) arranged for placing a back projector and a lens (12) fixedly arranged on the front side of the box (22) and each screen panel (11) is arranged on the front side of the lens (12) of the spliced back projection cabinets (2).
Description
Technical field
The present invention relates to back projection splicing display screen.
Background technology
Principle such as Fig. 1 that rear-projection shows, back reflection projector 3 is located at screen 1 back side, and the rear-projection light that back reflection projector 3 penetrates passes screen 1 and from screen 1 positive the ejaculation, display image is for watching on screen 1.Needing the occasion of large screen display image, can use a back reflection projector 3 to project on the large scale rear projection screen 1 and realize, project up to the back reflection projector 3 of 10000 lumens such as an output brightness on 200 inches the giant-screen and can realize that 200 inches large-size screen monitors show.But this single back projection display technique makes that the image pixel that projects is bigger because the resolution that single back reflection projector 3 can realize is restricted, and it is coarse that picture seems, only is fit to longer-distance watching.In order to realize that the high-resolution image of giant-screen shows, adopt the mode of back projection splicing usually, promptly adopt many back reflection projectors 3, and polylith screen 1 is stitched together forms a giant-screen, carry out multi-screen splicing and show.This back projection splicing display mode is that unit splices usually with the back projection unit, each back projection unit comprises a back reflection projector 3, a casing 22 and a screen 1, make the form of unit then, mode with M row N capable (M, N are that positive integer and M, N can not equal 1 simultaneously) is stitched together, and forms big screen display screen.3 * 3 tiled displays among Fig. 3 for example, each back projection unit is responsible for one of them part of display image.
In the back projection unit of splicing usefulness, screen 1 has lens 12 and curtain plate 11 double-layer structures usually, and as Fig. 2, the back side is lens 12 near back reflection projector's 3 one sides promptly, be responsible for and turn back to vertical with curtain plate 11 substantially from the rear-projection light of back reflection projector 3, adopt Fresnel lens 12 structures to realize usually; Positive simultaneously is curtain plate 11 near spectators promptly, be responsible for giving spectators to positive area scattering with rear-projection light, curtain plate 11 can be simple scattering curtain, it also can be the optical texture curtain that has cylindrical lens 12, perhaps can be the beaded glass curtain, also can realize by one or more sticking being posted on the clear sheet of film with scattering process.In the prior art, every block of curtain plate 11 and lens 12 are combined into one the screen 1 that constitutes a back projection unit, and a plurality of back projection units are spliced to form a big screen display screen.The screen 1 of each back projection unit is separate in this splicing construction, reason owing to aspects such as installing and fixing and expand with heat and contract with cold, there is a splicing slit between the screen 1 of adjacent two back projection units, cause the image centre of large screen display to have many tangible splicing black lines, image has the sensation of being isolated, and influences the whole structure of image.
In the prior art, the printing opacity fixed plate can also be installed, be used for fixing the position of screen 1 and prevent that it from producing distortion in the back side and/or the front of screen 1.
Summary of the invention
The present invention aims to provide a kind ofly not to be had or the back projection splicing display screen of less screen splicing seam.
Provide a kind of back projection splicing display screen for this reason, it is characterized in that, the back projection cabinet and one or more act plate that comprise a plurality of mutual splicings, described back projection cabinet comprises the lens that are used to place the casing of back reflection projector and are fixedly mounted on described casing front, and described every block of curtain plate is arranged on the lens front of a plurality of mutual splicing back projection cabinets.
The present invention is arranged on the lens of a plurality of mutual splicing back projection cabinets because of every block of curtain plate, reduced the splicing slit of curtain plate, reason is the scattering of the rear-projection light that sent of the back projection cabinet of a plurality of mutual splicings corresponding with curtain plate through this act plate, the light of the both sides, splicing slit of lens interpenetrates diffusion in the curtain plate, so the image that shows on a curtain plate just be can't see the splicing seams of lens.
Preferably, if whole rear projection screen displays uses corresponding all the back projection cabinets that splice mutually of a monoblock curtain plate, the curtain plate of this display screen is without any splicing seams, and back projection splicing display screen just can demonstrate full frame seamless image.
Description of drawings
Fig. 1 is the back projection principle schematic.
Fig. 2 is existing screen construction synoptic diagram.
Fig. 3 is the user mode figure of existing back projection splicing display screen.
Fig. 4 is the assembling synoptic diagram of embodiment one back projection cabinet and curtain plate.
Fig. 5 is the user mode figure of embodiment one back projection splicing display screen.
Fig. 6 is the user mode figure of embodiment two back projection splicing display screens.
Fig. 7 is the user mode figure of embodiment two back projection splicing display screens.
Embodiment
Embodiment one
Present embodiment such as Fig. 4, seamless projection shadow mosaic display screen is spliced to form mutually by 3 * 3 back projection cabinets 2, each back projection cabinet 2 has comprised the lens 12 of the back projection light that is used to turn back, and has also comprised the casing 22 that is used to lay back reflection projector and fixed installation lens 12.For easy to adjust, each back projection cabinet can also comprise an adjustment support for 2 li and be used to adjust the light that back reflection projector penetrates.In the front of 3 * 3 back projection cabinets 2 that splice mutually, a monoblock curtain plate 11 has been installed, this monoblock curtain plate 11 is close to 3 * 3 lens 12 fronts of the back projection cabinets 2 of splicing mutually.Seamless projection shadow mosaic display screen after the installation as shown in Figure 5.
Because use the back projection cabinet 2 of a complete curtain plate 11 corresponding to a plurality of mutual splicings, curtain plate 11 itself does not splice the slit fully.Project on the curtain plate 11 of a monoblock with the near vertical or the angle of dispersing slightly through corresponding lens 12 collimation backs from the back projection light of each back reflection projector, scattering through curtain plate 11, the light of the both sides, splicing slit between the lens 12 interpenetrates diffusion in curtain plate 11, the image that shows on the curtain plate 11 has stitched with regard to the image mosaic of can't see from different back projection units, forms seamless mosaic display screen fully.
Embodiment two
For more large-scale display screen, use relatively difficulty of a complete curtain plate 11, curtain plate 11 can be made the vertically hung scroll shape, shown in Fig. 6,7, splice by the curtain plate 11 of three vertically hung scroll shapes, every block of curtain plate 11 is corresponding to 3 back projection cabinets 2 of splicing mutually.In this case, although still there is the splicing slit between each piece curtain plate 11, but because adopted the 11 corresponding splicings mutually of a curtain plate 3 back projection cabinets 2, whole back projection splicing display screen has only used the curtain plate 11 of 3 vertically hung scroll shapes, compare with Fig. 2, only have level or vertical splicing seams, the quantity of splicing seams also greatly reduces.
Above-mentioned two embodiment:
Described lens 12 typically refer to Fresnel lens 12, perhaps are also referred to as Fresnel Lenses 12.
Described curtain plate 11 can be simple scattering curtain, also can be the optical texture curtain that has cylindrical lens 12, perhaps can be the beaded glass curtain; Also can one or more realize by sticking being posted on the clear sheet of the film with scattering process.
For the position of fixed lens 12 with prevent distortion, can be at the back side and/or the positive printing opacity fixed plate of installing of lens 12, described transparent fixed plate is installed on the casing 22 of back projection cabinet 2, as the some of back projection cabinet 2.In order to allow act plate 11 be adjacent to the back projection cabinet 2 of mutual splicing and to prevent distortion, can the printing opacity fixed plate be installed in the front of curtain plate 11, compress back projection cabinet 2 fronts of act plate 11 in splicing.Described two kinds of printing opacity fixed plate mount schemes can be in conjunction with employing.
Can be provided with in lens 12 sides of each back projection cabinet 2 that splices mutually prevent rear-projection light with the adjoiner of adjacent lens 12 side by side by the structure of total reflection, enter lens 12 sides of the back projection cabinet 2 of mutual splicing with the edge back projection light of guiding back reflection projector, increase the back projection luminous energy in the splicing slit, reach better display effect.Prevent that rear-projection light from can had multiple implementation with the adjoiner of adjacent lens 12 side by side by the structure of total reflection, for example on the lens 12 with the corner cut of the adjoiner of adjacent lens 12 side by side, perhaps be arranged on the lens 12 and the scattering layer of the adjoiner of adjacent lens 12 side by side, perhaps being arranged on the wedge at lens 12 back sides or the like, is description among 200910039102.3 the Chinese patent literature CN101556425 referring to the applicant's application number specifically.
During statement quantity, " many " as herein described are meant more than or equal to two.
Claims (9)
1. back projection splicing display screen, it is characterized in that, the back projection cabinet (2) and one or more act plate (11) that comprise a plurality of mutual splicings, described back projection cabinet (2) comprises the casing (22) that is used to place back reflection projector and is fixedly mounted on the positive lens (12) of described casing (22) that described every block of curtain plate (11) is arranged on lens (12) front of a plurality of mutual splicing back projection cabinets (2).
2. according to the back projection splicing display screen of claim 1, described curtain plate (11) is made of many sticking being posted on the clear sheet of the adjacent tight splicing of film with scattering process.
3. according to the back projection splicing display screen of claim 1, the printing opacity fixed plate is equipped with in the back side and/or the front of lens (12).
4. according to the back projection splicing display screen of claim 1 or 3, the printing opacity fixed plate is equipped with in the front of curtain plate (11).
5. according to the back projection splicing display screen of claim 1 or 3, lens (12) be provided with prevent rear-projection light with the adjoiner of adjacent lens (12) side by side by the structure of total reflection.
6. according to the back projection splicing display screen of claim 5, the described rear-projection light that prevents is being comprised by the structure of total reflection with the adjoiner of adjacent lens (12) side by side: lens (12) are gone up and the corner cut of the adjoiner of adjacent lens (12) side by side.
7. according to the back projection splicing display screen of claim 5, the described rear-projection light that prevents is being comprised by the structure of total reflection with the adjoiner of adjacent lens (12) side by side: be arranged on lens (12) and go up and the scattering layer of the adjoiner of adjacent lens (12) side by side.
8. according to the back projection splicing display screen of claim 5, the described rear-projection light that prevents is being comprised by the structure of total reflection with the adjoiner of adjacent lens (12) side by side: the wedge that is arranged on lens (12) back side.
9. according to the back projection splicing display screen of claim 1, a described curtain plate (11) is aimed at all lens (12) in the back projection splicing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910193830 CN101762965A (en) | 2009-11-10 | 2009-11-10 | Back projection splicing display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910193830 CN101762965A (en) | 2009-11-10 | 2009-11-10 | Back projection splicing display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101762965A true CN101762965A (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910193830 Pending CN101762965A (en) | 2009-11-10 | 2009-11-10 | Back projection splicing display screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102209222A (en) * | 2011-05-25 | 2011-10-05 | 笔特尔(厦门)电子科技有限公司 | Large physically-seamless display screen |
| CN104517533A (en) * | 2013-09-26 | 2015-04-15 | 鸿富锦精密工业（深圳）有限公司 | Display, display device and assembly method of display device |
| CN104808428A (en) * | 2014-08-20 | 2015-07-29 | 山东巨洋神州信息技术有限公司 | Spliced display screen |
| CN107807489A (en) * | 2017-11-10 | 2018-03-16 | 威创集团股份有限公司 | A kind of rear-projection combination and its rear projection screen |
| CN108780611A (en) * | 2015-12-31 | 2018-11-09 | 飞行安全国际公司 | The device, engine, system and method for simulation and training are provided for the operation of jumbo |
| US10261399B2 (en) | 2015-06-30 | 2019-04-16 | Huawei Technologies Co., Ltd. | Projection system |
-
2009
- 2009-11-10 CN CN 200910193830 patent/CN101762965A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102209222A (en) * | 2011-05-25 | 2011-10-05 | 笔特尔(厦门)电子科技有限公司 | Large physically-seamless display screen |
| CN104517533A (en) * | 2013-09-26 | 2015-04-15 | 鸿富锦精密工业（深圳）有限公司 | Display, display device and assembly method of display device |
| CN104808428A (en) * | 2014-08-20 | 2015-07-29 | 山东巨洋神州信息技术有限公司 | Spliced display screen |
| US10261399B2 (en) | 2015-06-30 | 2019-04-16 | Huawei Technologies Co., Ltd. | Projection system |
| CN108780611A (en) * | 2015-12-31 | 2018-11-09 | 飞行安全国际公司 | The device, engine, system and method for simulation and training are provided for the operation of jumbo |
| US11257392B2 (en) | 2015-12-31 | 2022-02-22 | Flightsafety International Inc. | Apparatus, engine, system and method of providing simulation of and training for the operation of heavy equipment |
| CN108780611B (en) * | 2015-12-31 | 2022-06-21 | 飞行安全国际公司 | Apparatus, engine, system and method for providing simulation and training for operation of heavy equipment |
| CN107807489A (en) * | 2017-11-10 | 2018-03-16 | 威创集团股份有限公司 | A kind of rear-projection combination and its rear projection screen |
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Application publication date: 20100630 |