CN100589158C - Outdoor large screen display device - Google Patents
Outdoor large screen display device Download PDFInfo
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- CN100589158C CN100589158C CN200710073212A CN200710073212A CN100589158C CN 100589158 C CN100589158 C CN 100589158C CN 200710073212 A CN200710073212 A CN 200710073212A CN 200710073212 A CN200710073212 A CN 200710073212A CN 100589158 C CN100589158 C CN 100589158C
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Abstract
The invention relates to an outdoor large screen display device which includes an automatic static picture switching display system used in high environment illumination intensity condition and a dynamic image display system used in low environment illumination intensity condition. Said automatic static picture switching display system comprises a winding type painting picture switching device, said dynamic image display system comprises a dynamic image display screen. In accordance with characteristics of day display and night display, the outdoor large screed display device uses low-cost painting picture in day high environment illumination intensity condition, and takes full use of low environment illumination intensity condition in night, two display states can be automatic identifiedswitched, and forms perfect automatic advertisement display system.
Description
Technical field
The present invention relates to the outdoor advertising display device, more particularly, relate to a kind of outdoor large screen display device that day and night uses that is directed to respectively.
Background technology
Traditional still frame advertisement screen has cheap advantage, but its regular price-line advertising screen can only show single fixed image, and " three faces turn over " advertisement screen can only show three width of cloth still frames in turn, and the advertising message amount is limited, and advertising results are not good enough; And evening must be visible by adding illumination ability.Also have a kind of LED high intensity display screen to realize the high brightness demonstration, can carry out dynamic menu round the clock and show that effect significantly improves than still frame advertisement screen.But its monochromatic screen or double-colored screen can only carry out character and graphic presentation, can not carry out image and show, show that the cost cost is high though full-color screen can carry out image, and millions of even up to ten million easily costs has limited most range of application; And its display effect is not good enough, and colour reproduction is lower than other display mode, shows that especially resolution is difficult to the sharpness that reaches higher, unless display size is enough big, display element is abundant, and viewing distance is enough far away, but such cost and cost tend to very high.
Summary of the invention
The technical problem to be solved in the present invention is that the above-mentioned defective at prior art provides a kind of outdoor large screen display device.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of outdoor large screen display device, comprise that the AUTOMATIC STATIC picture that is used under the high ambient light illumination conditions switches display system and the dynamic image display system that is used under the low ambient light illumination conditions, described AUTOMATIC STATIC picture switches display system and comprises show case, be used to realize the rotating shaft that is arranged on both sides in the described show case that the coiling of multi-picture switches, be used to drive the drive division that described rotating shaft rotates and be wrapped in and under the drive of described rotating shaft, realize first picture that multi-picture is reeled and switched in the described rotating shaft; Described dynamic image display system comprises that dynamic image display screen is arranged on second picture of the described first picture tail end, described second picture is the soft curtain of front projection or light inlet window or euphotic zone, and described dynamic image display screen adopts by projection display unit or by the combination that the flat panel display unit of plasma display and LCD is formed and shields spliced display wall and image segmentation processor.
In outdoor large screen display device of the present invention, described AUTOMATIC STATIC picture switches display system and also comprises the position transducer that is used to detect the first picture position, the system's control single chip computer that links to each other with described drive division, position transducer.
In outdoor large screen display device of the present invention, described AUTOMATIC STATIC picture switches display system and also comprises the damping brake device that is used for drive division is provided damping and braking, and described damping brake device links to each other with described single-chip microcomputer.
In outdoor large screen display device of the present invention, described dynamic image display system comprises the projection case that is used for projection generation dynamic image on projection screen, be used to connect the cantilever portion of described projection case and described show case, described position transducer also is used to detect the position of described second picture.
In outdoor large screen display device of the present invention, described cantilever portion comprises the fixed arm that links to each other by the cantilever portion rotating mechanism with described show case and the telescopic arm that links to each other by the cantilever portion telescoping mechanism with described fixed arm, the motion control system that is used to control described cantilever portion action, described fixed arm rotates under the drive of described cantilever portion rotating mechanism, described telescopic arm stretches under described cantilever portion telescoping mechanism drives, and described projection case is fixed on the front end of described telescopic arm.
In outdoor large screen display device of the present invention, described cantilever portion rotating mechanism comprises drive motor, worm screw, worm gear, described cantilever portion telescoping mechanism comprises drive motor, worm screw, worm gear, gear, be arranged at the tooth bar on the telescopic arm, described motion control system comprises the cantilever portion angular transducer, the cantilever portion linear transducer, the ambient light sensor, cantilever portion rotation driving circuit, cantilever portion telescopic drive circuit, and connect described cantilever portion angular transducer, the cantilever portion linear transducer, the ambient light sensor, cantilever portion rotation driving circuit, system's control single chip computer of cantilever portion telescopic drive circuit.
In outdoor large screen display device of the present invention, described cantilever portion angular transducer, cantilever portion linear transducer are photo-electric or electromagnetic type, and described ambient light sensor is a photo-electric.
In outdoor large screen display device of the present invention, described cantilever portion is a plurality of, described dynamic image display system comprises a plurality of projection casees, is used for the adjacent part of adjacent projections case imaging is carried out the edge fused images processor that the edge fused images is handled, each projection case is projected in the common picture that forms an integral body of zones of different of described projection screen, and described second picture is a rear projection screen.
In outdoor large screen display device of the present invention, also comprise the hanging stick that links to each other with the front end of described telescopic arm, every described telescopic arm and hanging stick flexibly connect, and described projection case is fixed on the described hanging stick.
In outdoor large screen display device of the present invention, described hanging stick is parallel with surface level, also comprises the outstanding bar that links to each other with described hanging stick, and described outstanding bar is vertical with surface level, described projection case links to each other with described outstanding bar, and described projection case is one or more in vertical direction.
In outdoor large screen display device of the present invention, also comprise the outstanding bar that links to each other with the front end of described telescopic arm, described outstanding bar is perpendicular to the ground, and described projection case is fixed on the described outstanding bar.
In outdoor large screen display device of the present invention, described position transducer is photo-electric or electromagnetic type.
Implement outdoor large screen display device of the present invention, has following beneficial effect: because the characteristics that outdoor large screen display device of the present invention showed at daytime demonstration and night, high ambient light illumination by day adopts low-cost air brushing picture, make full use of the low light conditions at night at night, adopt and show that cost performance is much better than the Large Screen Display Technology (front projection that outdoor LED shows, back projection, projection splicing etc.) the low-cost high image quality that be provided night significantly image show, so that the night display image effect higher than LED display to be provided, and reduce system cost significantly; Adopt and detect automatically and control technology, make at the show state of two kinds of service conditions and discern switching automatically, form perfect automatic advertisement display system; In order significantly to improve the advertising message amount, improve (air brushing) image display effect on daytime, design air brushing picture automatic switchover system makes it and can Automatic Cycle play several advertisement pictures arbitrarily, has improved the dull effect of regular price-line advertising screen greatly.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the vertical view that the AUTOMATIC STATIC picture of outdoor large screen display device of the present invention switches first kind of embodiment of display system;
Fig. 2 is the upward view that the AUTOMATIC STATIC picture of outdoor large screen display device of the present invention switches first kind of embodiment of display system;
Fig. 3 is the stereographic map that the AUTOMATIC STATIC picture of outdoor large screen display device of the present invention switches first kind of embodiment of display system;
Fig. 4 be outdoor large screen display device of the present invention first kind of embodiment night duty structural representation;
Fig. 5 is the structural representation of the state that works by day of first kind of embodiment of outdoor large screen display device of the present invention;
Fig. 6 is that the cantilever portion of first kind of embodiment of outdoor large screen display device of the present invention is at the inner structure synoptic diagram of duty at night;
Fig. 7 is the cantilever portion inner structure synoptic diagram of duty by day of first kind of embodiment of outdoor large screen display device of the present invention;
Fig. 8 is the side structure synoptic diagram of two kinds of embodiments of outdoor large screen display device of the present invention in the duty at night;
Fig. 9 is the structural representations of three kinds of embodiments of outdoor large screen display device of the present invention in the duty at night;
Figure 10 is the structural representation of three kinds of embodiments duty by day of outdoor large screen display device of the present invention;
Figure 11 is the structural representations of four kinds of embodiments of outdoor large screen display device of the present invention in the duty at night;
Figure 12 is the structural representation of four kinds of embodiments duty by day of outdoor large screen display device of the present invention;
Figure 13 is the structural representations of five kinds of embodiments of outdoor large screen display device of the present invention in the duty at night;
Figure 14 is the structural representation of five kinds of embodiments duty by day of outdoor large screen display device of the present invention;
Figure 15 is the structural representations of six kinds of embodiments of outdoor large screen display device of the present invention in the duty at night;
Figure 16 is the structural representation of six kinds of embodiments duty by day of outdoor large screen display device of the present invention.
Embodiment
Outdoor large screen display device of the present invention is separately considered high ambient light illumination and two kinds of service conditions of the low ambient light illumination at night on daytime at the characteristics that show daytime and show night.At the characteristics that daytime, high illumination showed, adopt low-cost air brushing picture to replace electronic image to show, the necessary high brightness of high illumination shows and the high contradiction that shows between the cost to avoid.In order significantly to improve the advertising message amount, improve (air brushing) image display effect on daytime, design air brushing picture automatic switchover system makes it and can Automatic Cycle play several advertisement pictures arbitrarily, improves the dull effect of regular price-line advertising screen greatly.Make full use of the low light conditions at night, the Large Screen Display Technology (front projection, back projection, projection splicing etc.) that adopts the demonstration cost performance to be much better than the outdoor LED demonstration provides the significantly image demonstration of low-cost high image quality at night, so that the night display image effect higher than LED display to be provided, and reduce system cost significantly.Adopt and detect automatically and control technology, make at the show state of two kinds of service conditions and discern switching automatically, form perfect automatic advertisement display system.
Outdoor large screen display device of the present invention is at the automatic playing function that is used in daytime, design an AUTOMATIC STATIC picture and switch display system, at being used in dynamic image display system of design under the low ambient light illumination conditions at night, wherein AUTOMATIC STATIC picture switching display system and dynamic image display system all are arranged in the show case 15.Wherein AUTOMATIC STATIC picture switching display system comprises the rotating shaft 1 that is arranged on both sides in the show case 15, rotating shaft 1 is used to realize that the coiling of multi-picture switches, be used to drive the drive division 2 that described rotating shaft 1 is rotated, be wrapped in and under the drive of described rotating shaft 1, realize first picture that multi-picture is reeled and switched in the described rotating shaft 1, be used to detect the position transducer of the first picture position, the system's control single chip computer that links to each other with described drive division 2, position transducer.In one embodiment of the invention, the dynamic image display system comprises the projection case 4 that is used for projection generation dynamic image on described projection screen, be used to connect the cantilever portion 5 of described projection case and described show case 15, be arranged on second picture of described first picture front end or tail end, described position transducer also is used for detecting the position of described second picture.Wherein second picture can be soft front projection screen, and the dynamic image display system can be worked according to the front projection mode; Second picture can also be euphotic zone or light inlet window, and a rigid rear projection screen is set in show case 15 again, when picture 3 rotates to the position of euphotic zone, hard projection screen is exposed display image, and the dynamic image display system can be worked according to the back projection mode.
Switch the vertical view of first kind of embodiment of display system in conjunction with outdoor large screen display device AUTOMATIC STATIC picture of the present invention shown in Figure 1, upward view shown in Figure 2, stereographic map shown in Figure 3 is described the structure of present embodiment.It is that driving gear 9 and follower gear 10 pairs of two rotating shafts 1 carrying out timesharing drive by gear train that the AUTOMATIC STATIC picture switching display system of present embodiment is utilized motor 8, with the machine power that provides picture to switch, on rotating shaft 1 next door a buffering roller bearing 12 is set in addition again, a damping brake axle 13 and damping brake device 14 are set below rotating shaft 1 again.Adopt the position of every width of cloth picture of photoelectricity or 11 pairs of pictures 3 of electromagnetic sensor (picture 3 has comprised first picture and second picture) accurately to detect, its position error signal is sent into single-chip microcomputer, by control circuit drive motor 8 is controlled again by single-chip microcomputer, constitute a complete phase-locked loop by single-chip microcomputer, circuit for controlling motor, motor 8, sensor 11, to realize accurately locating automatically of every width of cloth air brushing picture.Under the control of scm software, make above-mentioned phaselocked loop open loop every the time interval of a setting, and under the control of single-chip microcomputer, by winding mechanism the air brushing picture is switched automatically fast, make phaselocked loop be in closed loop again, a new width of cloth picture is accurately located; Under the control of scm software, above process circulation is carried out, to realize that several automatic switchovers of intending the advertisement picture of demonstration show arbitrarily; Same photoelectricity or 11 pairs of every width of cloth pictures of electromagnetic sensor of adopting carry out position probing, cooperate above-mentioned control loop picture location accurately, same under the control of scm software, when reaching the tail end of whole first picture, show several advertisement pictures with the capable again circulation of opposite order.
As shown in Figure 4, for first kind of embodiment of outdoor large screen display device of the present invention night duty structural representation, Fig. 5 is the structural representation of the state that works by day.In the present embodiment, adopt the front projection imaging design that cost performance is the highest in the various giant-screen imaging modes, display screen is thrown soft curtain before adopting large scale, and promptly second picture is soft curtain, soft curtain is arranged on the front end or the tail end of auto reeling air brushing picture, becomes the part of auto reeling picture.AUTOMATIC STATIC picture switching display system, preceding throwing screen are placed in the show case 15 jointly, and show case 15 fronts are designed to transparent tank wall, be used for seeing through shown image.With the closed structure that show case 15 is designed to have rainproof function, be preferably in front transparent tank wall arranged outside automatic dustproof brush (not shown).A telescopic boom portion 5 is set again, the high-brightness projection machine is placed in the projection case 4 of telescopic boom portion 5 ends, night, cantilever portion 5 automatic half-twists placed screen the place ahead, and vertical with screen, cantilever portion 5 length extend and the projection distance relevant position automatically, utilize the low-light (level) at night, on screen, project high-quality live image, utilize the curtain of night that cantilever portion 5 is carried out hiding automatically simultaneously, make it seem just large screen flat plate display, as shown in Figure 4.And projection case 4 and cantilever portion 5 all painted the diffusion black surface, when daytime, image display system was not worked, cantilever portion 5 was shunk also and is made it parallel with screen, makes from the outside and sees that global shape is a giant-screen panel display screen, as shown in Figure 5.
As shown in Figure 6, be the cantilever portion of outdoor large screen display device of the present invention inner structure synoptic diagram in the duty at night, Fig. 7 is the cantilever portion inner structure synoptic diagram of duty by day; The structural representation of cantilever portion is described below in conjunction with Fig. 6, Fig. 7, drive motor is by cantilever portion rotating mechanism 504 (turbine worm mechanism realizes the spinning movement of flexible cantilever portion 5), and drive motor is by cantilever portion telescoping mechanism 503 (" turbine worm+rack-and-pinion " mechanism realizes the expanding-contracting action of cantilever portion length).Adopt photosensitive device to constitute a day photodetector 16, adopt photoelectricity or electromagnetic device to constitute cantilever portion 5 angles and length detection device, and testing result sent into single-chip microcomputer, according to Control Software, control corresponding motor by single-chip microcomputer by control circuit, realize the day and night automatic identification of state (being high ambient light illumination and low ambient light illumination), the startup of cantilever portion 5 and projector's duty, the operations such as automatic control of cantilever portion 5 angles and length, in system controlling software, introduce the timing controlled function, to start automatically according to the time of setting and to close entire equipment.Built-in CF card and SIM functional module in projector, perhaps design a special-purpose control enclosure, CF card and SIM functional module are set therein, utilize activity of image information loop play or the rest image deposited in CF card and the SIM card, carry out the renewal of institute's playing image information by the mode of changing CF card or multimedia message, when being in the duty at night, picture 3 turns to the position of second picture, and second picture is soft projection screen in the present embodiment.
As shown in Figure 8, be two kinds of embodiments of outdoor large screen display device of the present invention side structure synoptic diagram in the duty at night.In the present embodiment, adopt the higher back projection imaging design of cost performance in the various giant-screen imaging modes, the image image source adopts the above high-brightness projection machine of 5000 lumens, display screen adopts the large scale rear projection screen, be arranged on the inboard of auto reeling air brushing picture, in the head end of auto reeling air brushing picture or tail end setting not with (suitable) euphotic zone or the light inlet window (promptly second picture is set to euphotic zone or light inlet window) of air brushing picture with the display frame size, be used for seeing through the Projection Display image, the AUTOMATIC STATIC picture is switched display system, rear projection screen (hard curtain) places in the show case 15 jointly, and two sides, show case 15 front and back is designed to transparent tank wall, the front is used for the image of transmission display, the back is used for seeing through the projected light beam by projector's projection, with the closed structure that show case 15 is designed to have rainproof function, two sides transparent tank wall arranged outside automatic dustproof brush (not shown) before and after being preferably in.Other design is identical with last embodiment.
In order to satisfy the demand that large-screen picture is more shown, adopt a plurality of projection casees, each projection case is projected in the zones of different of described projection screen, adopts the edge to merge the projection imaging design, forms the picture of an integral body, to improve the horizontal direction width of display frame.In conjunction with the structural representation of the third embodiment shown in Figure 9 in the duty at night, and the structural representation of the third embodiment duty by day shown in Figure 10, the structure of the third embodiment is described, in the present embodiment, the image image source adopts 5000 lumens above high-brightness projection machine and edge fused images processor, display screen is if adopt the hard curtain of large scale rear-projection, be arranged on the inboard of auto reeling air brushing picture, simultaneously in the head end of auto reeling air brushing picture or tail end setting not with (suitable) euphotic zone or the light inlet window (promptly second picture is set to euphotic zone or light inlet window) of air brushing picture with the display frame size, display screen is if adopt the soft curtain of large scale rear-projection, be arranged on the front end or the tail end of picture 3, become the part of auto reeling picture, (throwing soft curtain before promptly second picture is set to), setting flexibly connects a hanging stick 6 by two telescopic boom portions 5, drive cantilever portion rotation and flexible and realize that the folding and unfolding of hanging stick 6 moves by cantilever portion rotation and telescoping mechanism, the appropriate location is provided with projection case 4 on hanging stick 6, is compounded to form the edge by two above projectors and merges projection imaging system.
As shown in figure 11, be four kinds of embodiments of outdoor large screen display device of the present invention structural representation in the duty at night, Figure 12 is a structural representation by day, in the present embodiment, adopt the edge to merge design simultaneously in level and vertical direction, to improve the screen size of display frame greatly, position suitable on the set in the present embodiment hanging stick 6 is provided with some outstanding bars 7 by the direction vertical with hanging stick 6 directions, appropriate location at outstanding bar 7 is provided with projection case 4, to form required projection case 4 arrays of edge fusion of imaging, other design and implementation example three is identical.
As shown in figure 13, be five kinds of embodiments of outdoor large screen display device of the present invention structural representation in the duty at night, Figure 14 is the structural representation of duty by day.In the present embodiment, cancelled the hanging stick among the last embodiment, flexible end in cantilever portion 5 is provided with outstanding bar 7, appropriate location at outstanding bar 7 is provided with projection case 4, to form the required projection case array of edge fusion of imaging, the sense of rotation of two cantilever portion 5 is opposite, makes system when dormant state, two outstanding bars 7 can be received respectively to the both sides of show case 15, and other design and implementation example four is identical.
As shown in figure 15, be six kinds of embodiments of outdoor large screen display device of the present invention structural representation in the duty at night, Figure 16 is the structural representation of duty by day.In the present embodiment, cantilever portion 5 is two or more, and the sense of rotation of cantilever portion 5 is identical, outstanding bar 7 flexibly connects with the end of cantilever portion 5, make system when dormant state, many outstanding bars 7 can be received respectively to the rear side of show case 15, and other design and implementation example five is identical.
Outdoor large screen display device of the present invention, wherein projection screen can adopt forth screen or rear projection screen, for being provided with many row's projection casees, adopts the mode of rear projection screen, can not influence drop shadow effect like this, as embodiment four to embodiment six.For single projection case is arranged, can adopt the mode of front projection, as embodiment one.
Outdoor large screen display device of the present invention can also have other embodiment, for example dynamic image display screen can adopt by projection display unit or by the combination screen spliced display wall that the flat panel display unit of plasma display and LCD is formed, and adds the image segmentation processor.To make up the screen spliced display wall and be arranged in the show case 15, second picture is set to euphotic zone or light inlet window, when night, when rotating shaft is turned to the position of second picture, will make up the screen spliced display wall and reveal, and dynamically shows.In the time of by day, the working method that the AUTOMATIC STATIC picture switches display system is identical with the embodiment of front.
Claims (12)
1, a kind of outdoor large screen display device, it is characterized in that, comprise that the AUTOMATIC STATIC picture that is used under the high ambient light illumination conditions switches display system and the dynamic image display system that is used under the low ambient light illumination conditions, described AUTOMATIC STATIC picture switches display system and comprises show case (15), be used to realize the rotating shaft (1) that is arranged on interior the both sides of described show case (15) that the coiling of multi-picture switches, be used to drive the drive division that described rotating shaft (1) rotates and be wrapped in described rotating shaft (1) and go up first picture of under the drive of described rotating shaft (1), realizing the switching of multi-picture coiling; Described dynamic image display system comprises dynamic image display screen, is arranged on second picture of the described first picture tail end, described second picture is the soft curtain of front projection or light inlet window or euphotic zone, and described dynamic image display screen adopts by projection display unit or by the combination that the flat panel display unit of plasma display and LCD is formed and shields spliced display wall and image segmentation processor.
2, outdoor large screen display device according to claim 1, it is characterized in that, described AUTOMATIC STATIC picture switches display system and also comprises the position transducer that is used to detect the first picture position, the system's control single chip computer that links to each other with described drive division, position transducer.
3, outdoor large screen display device according to claim 2, it is characterized in that, described AUTOMATIC STATIC picture switches display system and also comprises the damping brake device (14) that is used for drive division is provided damping and braking, and described damping brake device (14) links to each other with described single-chip microcomputer.
4, outdoor large screen display device according to claim 2, it is characterized in that, described dynamic image display system comprises the projection case that is used for projection generation dynamic image on projection screen, be used to connect the cantilever portion (5) of described projection case and described show case (15), described position transducer also is used to detect the position of described second picture.
5, outdoor large screen display device according to claim 4, it is characterized in that, described cantilever portion (5) comprises the fixed arm (501) that links to each other by cantilever portion rotating mechanism (504) with described show case (15) and the telescopic arm (502) that links to each other by cantilever portion telescoping mechanism (503) with described fixed arm (501), be used to control the motion control system of described cantilever portion (5) action, described fixed arm (501) rotates under the drive of described cantilever portion rotating mechanism (504), described telescopic arm (502) stretches under described cantilever portion telescoping mechanism (503) drives, and described projection case (4) is fixed on the front end of described telescopic arm (502).
6, outdoor large screen display device according to claim 5, it is characterized in that, described cantilever portion rotating mechanism (504) comprises drive motor, worm screw, worm gear, described cantilever portion telescoping mechanism (503) comprises drive motor, worm screw, worm gear, gear, be arranged at the tooth bar on the telescopic arm (502), described motion control system comprises the cantilever portion angular transducer, the cantilever portion linear transducer, the ambient light sensor, cantilever portion rotation driving circuit, cantilever portion telescopic drive circuit, and connect described cantilever portion angular transducer, the cantilever portion linear transducer, the ambient light sensor, cantilever portion rotation driving circuit, system's control single chip computer of cantilever portion telescopic drive circuit.
7, outdoor large screen display device according to claim 6 is characterized in that, described cantilever portion angular transducer, cantilever portion linear transducer are photo-electric or electromagnetic type, and described ambient light sensor is a photo-electric.
8, outdoor large screen display device according to claim 4, it is characterized in that, described cantilever portion (5) is a plurality of, described dynamic image display system comprises a plurality of projection casees (4), is used for the adjacent part of adjacent projections case (4) imaging is carried out the edge fused images processor that the edge fused images is handled, each projection case (4) is projected in the common picture that forms an integral body of zones of different of described projection screen, and described second picture is a rear projection screen.
9, outdoor large screen display device according to claim 5, it is characterized in that, also comprise the hanging stick (6) that links to each other with the front end of described telescopic arm (502), every described telescopic arm (502) flexibly connects with hanging stick (6), and described projection case (4) is fixed on the described hanging stick (6).
10, outdoor large screen display device according to claim 9, it is characterized in that, described hanging stick (6) is parallel with surface level, also comprise the outstanding bar (7) that links to each other with described hanging stick (6), described outstanding bar (7) is vertical with surface level, described projection case (4) links to each other with described outstanding bar (7), and described projection case (4) is one or more in vertical direction.
11, outdoor large screen display device according to claim 5 is characterized in that, also comprises the outstanding bar (7) that links to each other with the front end of described telescopic arm (502), and described outstanding bar (7) is perpendicular to the ground, and described projection case (4) is fixed on the described outstanding bar (7).
12, outdoor large screen display device according to claim 2 is characterized in that, described position transducer is photo-electric or electromagnetic type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710073212A CN100589158C (en) | 2007-02-05 | 2007-02-05 | Outdoor large screen display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710073212A CN100589158C (en) | 2007-02-05 | 2007-02-05 | Outdoor large screen display device |
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|---|---|
| CN101241659A CN101241659A (en) | 2008-08-13 |
| CN100589158C true CN100589158C (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710073212A Expired - Fee Related CN100589158C (en) | 2007-02-05 | 2007-02-05 | Outdoor large screen display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102096283B (en) * | 2010-12-31 | 2012-08-08 | 深圳展景世纪科技有限公司 | Orthographic projection device used for copying copybook |
| CN206505702U (en) * | 2017-01-18 | 2017-09-19 | 广景视睿科技（深圳）有限公司 | A kind of project objects exhibiting device |
| CN107345621A (en) * | 2017-07-26 | 2017-11-14 | 南京信息职业技术学院 | A kind of campus activities outdoor projection device |
| CN109856156A (en) * | 2019-01-22 | 2019-06-07 | 武汉精立电子技术有限公司 | A kind of display panel tiny flaw determination method and device based on AOI |
| CN110275973B (en) * | 2019-06-21 | 2023-01-06 | 京东方科技集团股份有限公司 | Display method of image display device and electronic equipment |
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| DE102005005094A1 (en) * | 2004-02-06 | 2005-08-25 | Urbons, Klaus, Dipl.-Designer | Combined analogue and digital advertising placard and information wall has integrated changeover unit, overlaid screens and network linked variable information projector |
| CN201117187Y (en) * | 2007-02-05 | 2008-09-17 | 曹嘉灿 | Outdoor large screen display device |
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| CN101241659A (en) | 2008-08-13 |
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