CN102209222B - Large physically-seamless display screen - Google Patents
Large physically-seamless display screen Download PDFInfo
- Publication number
- CN102209222B CN102209222B CN201110136019.5A CN201110136019A CN102209222B CN 102209222 B CN102209222 B CN 102209222B CN 201110136019 A CN201110136019 A CN 201110136019A CN 102209222 B CN102209222 B CN 102209222B
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- light path
- path correction
- projector
- correction box
- back projection
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- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention discloses a large physically-seamless display screen, which comprises a frame, a rear projection screen and projectors. The rear projection screen is fixed in front of the frame. A plurality of adjacent latticed light path correction frames are attached to the back of the rear projection screen. The front ends of cross sections of adjacent parts of each latticed light path correction frame form an arrowhead shape respectively. The tip part of the arrowhead shape is attached to the rear projection screen. The rear part of each light path correction frame is provided with the projector. The areas of images projected by each projector are the same as those of inner edges of each light path correction frames. A plurality of projectors are connected by connecting wires and an image controller. Each projector can be arranged on a plane parallel to the bottom end face of the light path correction frame. Reflecting mirrors are also arranged on the frame on the rear parts of each light path correction frame. Light rays projected by the projectors are reflected to the rear projection screen between the inner edges of every two adjacent light path correction frames by the reflecting mirrors. The large physically-seamless display screen has high reliability, good image display effects and low manufacturing cost.
Description
Technical field
The present invention relates to jumbotron display device technical field, especially a kind of image that adopts the back projection technology to be launched by many projectors is combined into the Jumbotron physics-gapless display screen of a width complete image.
Background technology
In recent years, along with rapid economic development, to the demand of various information also rapid growth, make each field user as: quality monitoring, inspection and quarantine, the tax, urban public security, emergency command, environmental protection, subway, railway, highway, aviation, amusement club, large enterprise, colleges and universities, teleconference chamber etc. need to show, the amount of information of monitoring is increasing, therefore more and more to the demand of jumbotron display device.
Early stage jumbotron display device is to adopt many small-sized displays or undersized TV to be stacked up, then apply splicing and realize the splicing of picture, the jumbotron that forms the brick dress shows wall, but the divided severity of this demonstration wall image, visual effect is bad, and bulky, the life-span is short again, demand that far away can not satisfying the market.
Along with scientific and technological progress, multiple spliced display wall has appearred on market, as the liquid crystal technology spliced display wall, the plasma technology spliced display wall, back projection technology spliced display wall, their common problems existed are that splicing seams is processed and is difficult to reach promising result, and splicing seams passing in time can change, and the maintenance cost of splicing seams is higher.
On 01 12nd, 2011 disclose a patent No. is ZL201020146973.3, name is called the Chinese utility model patent of " a kind of jumbotron seamless display curtain wall ", its main technical schemes is to adopt a casing, a back projection curtain is fixed in the front of casing, the rear portion of casing arranges many projectors, then the image that adopts Fusion Edges projection splicing software and control software that adjacent projector is launched partly overlaps, make whole demonstration curtain wall see and not splice gap from vision, but also there is following problem in this technical scheme, the one, can not there be supporter the back of monoblock back projection curtain, when the size of back projection curtain is larger, the back projection curtain there will be and rocks, cause the image distortion of lap, distortion, the 2nd, there is overlapping part in image, the bright spot transition meeting of its lap is inhomogeneous, affect the resolution of image, the 3rd, the image that every projector launches partly overlaps, the area that makes many projectors launch complete piece image is less than every effective projected area sum of projector, improve manufacturing cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Jumbotron physics-gapless display screen, good reliability, and image display effect is good, low cost of manufacture.
For achieving the above object, technical scheme of the present invention is: a kind of Jumbotron physics-gapless display screen, comprise framework, the back projection curtain, projector, the back projection curtain is fixed on the front of framework, back projection face behind the scenes is close to and is provided with a plurality of adjacent square shape light path correction box, the cross-sectional front end at each arbitrary place of grid-like light path correction box adjacent part is arrow-shaped, sagittate tip portion is close to the back projection curtain, the rear portion of each light path correction box arranges a projector, the area of every projector's projected image is identical with the area of each light path correction box inward flange, many projectors are connected with an image controller by connecting line, image controller can be arranged in framework and also can be arranged at outside framework.
Further improve, for the thickness that makes whole display screen reduce and the position installation of projector easy to adjust, described every projector is arranged on the plane that each light path correction box bottom face parallels, a speculum is set on the framework at each light path correction box rear portion, the light that projector launches by mirror reflects to the back projection curtain between each light path correction box inward flange.
For easily manufactured and further reduction manufacturing cost, the overall dimension of each light path correction box is designed to identical, and the light path correction box also can adopt the material of same specification to make.
Part at framework on-fixed back projection curtain is sealed up steel plate and decorative panel; improve on the one hand outward appearance; protect on the other hand the equipment in framework; set up again ventilating fan on steel plate and decorative panel; be conducive to the heat radiation of projector, the negative pressure that ventilating fan produces also makes the back projection curtain can be close to the tip portion of light path correction box.
Beneficial effect of the present invention is as follows:
1, back projection face behind the scenes is close to and is provided with a plurality of adjacent square shape light path correction box, improve the intensity of whole back projection curtain, can not guarantee the quality of image because the factors such as sound equipment sound wave, cross-ventilation shake occurs and rock while making the back projection curtain larger, improve global reliability;
2, projector throws between each light path correction box inward flange the image of back projection curtain and is subject to light path correction box arrow-shaped tip partly to isolate not there will be to interfere with each other, not there will be image overlap simultaneously yet, therefore the entire image display effect is good, brings into play to greatest extent the resolution of projector; Simultaneously the partially isolated thickness of light path correction box arrow-shaped tip is generally to be less than 0.03mm, and light path correction box arrow-shaped tip partly is arranged on back projection face behind the scenes, then the naked eyes that see through the thickness people of back projection curtain can't see, and can not affect the quality of image;
3, the effective area that image is launched by every projector can be arranged to each light path correction box inward flange between the area that forms identical, therefore all projectors launch image be combined into area and every effective projected area addition of projector of a width complete image can be identical, reduce to greatest extent manufacturing cost;
4, the present invention can be produced by any screen size of customer requirement, wide adaptability.
The accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is that the present invention removes most of back projection curtain front view.
Fig. 3 is the A-A cutaway view of Fig. 1.
Fig. 4 is the B-B cutaway view of Fig. 1.
Fig. 5 is principle schematic of the present invention.
Embodiment
Below in conjunction with accompanying drawing and concrete execution mode, the present invention is described in further detail.
Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, a kind of Jumbotron physics-gapless display screen, comprise framework 1, back projection curtain 2, projector 3, back projection curtain 2 is fixed on the front of framework 1, back projection curtain 2 back are close to and are provided with a plurality of adjacent square shape light path correction box 4, the cross-sectional front end 41 at each grid-like light path correction box 4 arbitrary places of adjacent part is arrow-shaped, the tip portion of arrow-shaped 41 is close to back projection curtain 2, the rear portion of each light path correction box 4 arranges a projector 3, it is identical with the area of each light path correction box 4 inward flange that the area of every projector's 3 projected images is set to, many projectors 3 are connected with an image controller 5 by connecting line, image controller 5 can be arranged in framework 1 and also can be arranged at outside framework 1.
Every projector 3 is arranged on the plane that each light path correction box 4 bottom face parallels, projector's 3 install and adjusts are convenient, a speculum 6 is set on the framework 1 at each light path correction box 4 rear portion, the light that projector 3 launches reflexes on the back projection curtain 2 between each light path correction box 4 inward flange by speculum 6, can effectively dwindle like this thickness of framework 1.
The overall dimension of each light path correction box 4 is designed to identical, easily manufactured and can reduce costs.
The part of framework 1 on-fixed back projection curtain 2 can be sealed up steel plate and decorative panel (not shown); the ventilating fan (not shown) is set on steel plate and decorative panel again; protect on the one hand the equipment in framework 1; be conducive to the heat radiation of projector 3, the negative pressure that fan produces also makes back projection curtain 2 can be close to the tip portion of the arrow-shaped 41 of light path correction box 4.
The outward flange of back projection curtain 2 also can arrange a housing 21.
Fig. 5 further illustrates operation principle of the present invention, the signal that image controller 5 receives from computer 7 or monitoring camera 8 or player 9 or other input equipments, audio signal transmission to audio amplifier 10, image controller 5 is divided into 6 width sub image signal supplementary biographies to vision signal and is defeated by every projector 3 simultaneously, every projector 3 throws into the picture signals that distribute that receive between respective optical path correction box 4 inward flanges on back projection curtain 2 with light, the light that projector 3 launches also can reflex between respective optical path correction box 4 inward flanges on back projection curtain 2 by speculum 6 again, form a complete image by the image on back projection curtain 2 between all light path correction box 4 inward flanges, because of the thickness of adjacent light path correction box 4 isolation minimum, be generally below 0.03mm, people's naked eyes can't be differentiated, therefore entire image shows just very complete.
Above embodiment illustrates with 6 light path correction box and 6 projectors, and in Practical manufacturing, the quantity of light path correction box and projector can increase and decrease as required, and the size of back projection curtain also changes as required; The change that those skilled in the art does to be equal to by claim all falls into the protection range of this case.
Claims (3)
1. a Jumbotron physics-gapless display screen, comprise framework, the back projection curtain, projector, the back projection curtain is fixed on the front of framework, it is characterized in that: back projection face behind the scenes is close to and is provided with a plurality of adjacent square shape light path correction box, the cross-sectional front end at each arbitrary place of grid-like light path correction box adjacent part is arrow-shaped, sagittate tip portion is close to the back projection curtain, the thickness of light path correction box arrow-shaped tip part is less than 0.03mm, the rear portion of each light path correction box arranges a projector, the area of every projector's projected image is identical with the area of each light path correction box inward flange, many projectors are connected with an image controller by connecting line, image controller is arranged in framework or is arranged at outside framework,
The part of described framework on-fixed back projection curtain is sealed up steel plate and decorative panel, and ventilating fan is set on steel plate and decorative panel again.
2. Jumbotron physics-gapless display screen according to claim 1, it is characterized in that: described every projector is arranged on the plane that each light path correction box bottom face parallels, a speculum also is set on the framework at each light path correction box rear portion, the light that projector launches by mirror reflects to the back projection curtain between each light path correction box inward flange.
3. Jumbotron physics-gapless display screen according to claim 1 and 2, it is characterized in that: the overall dimension of described each light path correction box is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110136019.5A CN102209222B (en) | 2011-05-25 | 2011-05-25 | Large physically-seamless display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110136019.5A CN102209222B (en) | 2011-05-25 | 2011-05-25 | Large physically-seamless display screen |
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| Publication Number | Publication Date |
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| CN102209222A CN102209222A (en) | 2011-10-05 |
| CN102209222B true CN102209222B (en) | 2014-01-01 |
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| CN201110136019.5A Expired - Fee Related CN102209222B (en) | 2011-05-25 | 2011-05-25 | Large physically-seamless display screen |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883125A (en) * | 2012-09-21 | 2013-01-16 | 厦门美屏电子有限公司 | Splicing-free oversize-screen display system |
| CN103763494B (en) * | 2014-01-08 | 2016-10-19 | 上海风格信息技术股份有限公司 | A kind of filter method offsetting building curtain wall projection distortion |
| JP6604710B2 (en) * | 2014-04-23 | 2019-11-13 | アイキューブド研究所株式会社 | Image output apparatus, image output method, and program |
| CN106647130B (en) * | 2017-03-07 | 2018-09-28 | 海信集团有限公司 | back projection splicing unit, system and back projection splicing unit adjusting method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035811Y (en) * | 2006-11-21 | 2008-03-12 | 广东威创视讯科技股份有限公司 | Interactive electronic display sand table |
| CN201199423Y (en) * | 2008-05-15 | 2009-02-25 | 徐君义 | Mobile advertisement vehicle |
| CN101556425B (en) * | 2009-04-29 | 2011-04-06 | 广东威创视讯科技股份有限公司 | Seamless splicing method of back projection unit and special optical structure |
| CN101762965A (en) * | 2009-11-10 | 2010-06-30 | 广东威创视讯科技股份有限公司 | Back projection splicing display screen |
| CN201708875U (en) * | 2010-04-01 | 2011-01-12 | 范治江 | Seamless display curtain wall with large screen |
| CN202059501U (en) * | 2011-05-25 | 2011-11-30 | 笔特尔(厦门)电子科技有限公司 | Jumbotron physics-gapless display screen |
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Effective date of registration: 20160718 Address after: 276800 No. 99 middle Weifang Road, Juxian Economic Development Zone, Shandong, Rizhao City Patentee after: Pen (Rizhao) Technology Co., Ltd. Address before: 361011 No. 7 Xiang Yue Road, torch hi tech Zone (Xiangan), Fujian, Xiamen Patentee before: Biteer (Xiamen) Electronic Technology Co.,Ltd. |
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Granted publication date: 20140101 Termination date: 20180525 |
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