CN207852217U - Spherical surface shows structure and the CAVE systems with it - Google Patents

Abstract

The utility model provides a kind of spherical surface display structure and the CAVE systems with it.Spherical surface shows that structure includes lamp plate unit, lamp plate unit is multiple, multiple lamp plate unit spliceds form spherical structure, the upper side edge of the weft direction of the globally structure of lamp plate unit and the arc-shaped structure of lower side being oppositely arranged with upper side edge, and the length of upper side edge and lower side is unequal, the lower side of the upper side edge and another lamp plate unit of a lamp plate unit in two lamp plate units being disposed adjacent on weft direction is disposed adjacently.Using the lamp plate cellular construction of the structure so that the lamp plate unit is arbitrarily spliced and combined at horizontal field of view angle with the integral multiple of X degree, and vertical field of view angle is arbitrarily spliced and combined with the integral multiple of Y degree to form the display structure of spherical shape.Setting can effectively improve the display effect of the display structure in this way.

Description

Spherical surface shows structure and the CAVE systems with it

Technical field

The utility model is related to display systems technology fields, show structure in particular to a kind of spherical surface and have it CAVE systems.

Background technology

Since CAVE systems are capable of providing one big field angle, weight feeling of immersion, the simulated environment of high fidelity, it is born it certainly Day rises, and is just paid much attention to by emulation field.1992, Illinois, America found university's EVL lab designs and goes out first CAVE systems are covered, 120Hz stereo-pictures is generated using 4 SGI workstation synchronizations, is displayed on the screen using 4 projectors, by It is expensive to be formed on work station, projector, a very long time, CAVE system users group is only limitted to research institution.

With the rapid development of information technology, CAVE systematic difference ranges are more and more extensive, also sent out on Form of Technique Variation is given birth to.In terms of display screen (curtain) splicing form, including two pieces or more of plain splice, cylinder, spherical surface, hyperboloid, circle Table top etc., from display technology, including projector, LCD, LED display unit splicing etc..Due to projector's core member device Part is under one's control, and the import of high-end projection machine is spelled by national management and control, too big etc. the reasons in LCD plain splices gap, LED display unit It connects and is gradually paid attention to by display technology field.In the prior art, before using, under, left and right totally four faces build a CAVE system It unites, splicing is in 90 degree of right angles between each face, and due to the directionality of LED light, side has aberration, and horizontal field of view angle is usually no more than 180 degree.

Since LED shows product splicing is seamless, reliability is high, colour gamut is wide, life cycle cost is low, brightness regulation range is wide etc. Advantage, LED show product be widely used in the places such as outdoor guiding, advertisement, displaying and indoor command centre, conference centre, The places such as monitoring center, control centre.Although LED ball face shows that product is few, spy of the people to LED ball face display technology Rope, it is substantially synchronous with conventional display technology to carry out.

By sphere display portion cutting it is also in the prior art limited not equal trapezoidal and triangle of specification, or by mould The external surface shape cutting of group is quadrangle, and proposes to arrange LED light to form LED ball face along latitude and longitude.In the prior art The display device collectively constituted by spherical surface display screen and pedestal is also proposed, and solves LED Layout-Angles, so that screen body is presented more preferable Homogeneity question.

LED ball face display technology is widely used in intention display field, is limited by machining accuracy, point spacing promotion difficulty, Current LED ball face shows that product is generally for the viewing distances such as museum, inTouch Lab, recreation center farther out outer aobvious Show, LED point spacing is differed from P10 to P3.However, LED ball face in the prior art display screen point spacing is larger, may not apply to Spherical surface display system is equipped in the emulation such as flight simulator, marine simulator, special vehicle simulator.

Utility model content

The main purpose of the utility model is to provide a kind of spherical surface display structure and with its CAVE systems, to solve The problem of display system display effect difference in the prior art.

To achieve the goals above, one side according to the present utility model provides a kind of spherical surface display structure, packet It includes：Lamp plate unit, lamp plate unit are multiple, and multiple lamp plate unit spliceds form spherical structure, the globally structure of lamp plate unit Weft direction upper side edge and the arc-shaped structure of lower side that is oppositely arranged with upper side edge, and the length of upper side edge and lower side Spend the upper side edge and another lamp of a unequal lamp plate unit in two lamp plate units being disposed adjacent on weft direction The lower side of plate unit is disposed adjacently.

Further, the first side of the warp direction of the globally structure of lamp plate unit and opposite with first side Dual side-edge is straight flange structure.

Further, spherical surface shows that structure further includes：Lamp bead group, lamp bead group are multiple, and multiple lamp bead groups are along weft direction Be evenly arranged on lamp plate unit, lamp bead group includes multiple lamp beads, the centre distance between adjacent lamp bead be L, L=P-N, Wherein, pre-determined distances of the P between adjacent lamp bead, N are offset.

Further, P=1.875mm, and/or, N≤1mm.

Further, the quantity of the lamp bead in each lamp bead group is identical, the number of the lamp bead in two adjacent lamp bead groups Amount differs.

Further, the lamp bead in lamp bead group is arranged in rows along weft direction, and the number of the lamp bead on each row is identical.

Further, the lamp bead of close first side of lamp bead group is pre-determined distance at a distance from the edge of first side Half, and/or, the lamp bead of close second side of lamp bead group is the half of pre-determined distance at a distance from the edge of second side.

Further, be n1 along the lamp bead of weft direction setting close to upper side edge, when between adjacent lamp bead away from When from less than P-N, the lamp being arranged along weft direction on the lower side for another lamp plate unit being disposed adjacent with the upper side edge Pearl is K, wherein k >=1.

Further, when multiple lamp bead groups transit to the pole of spherical structure along weft direction, the lamp at pole Pearl is set to the first side of lamp plate unit or the edge of second side.

Further, spherical surface shows that structure further includes：Mounting bracket, lamp plate unit are connected with mounting bracket；Arc is pacified Skeleton is filled, mounting bracket is connected with arc mounting framework.

Another aspect according to the present utility model provides a kind of CAVE systems, including spherical surface shows that structure, spherical surface are shown Structure is that above-mentioned spherical surface shows structure.

Using the technical solution of the utility model, using the lamp plate cellular construction of the structure, it can make the lamp plate unit It is arbitrarily spliced and combined with the integral multiple of X degree at horizontal field of view angle, vertical field of view angle is arbitrarily spliced and combined with the integral multiple of Y degree with shape At the display structure of spherical shape.Setting can effectively improve the display effect of the display structure in this way.

Description of the drawings

The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality Novel illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model. In the accompanying drawings：

Fig. 1 shows the configuration schematic diagram of the embodiment of display structure according to the present utility model；

Fig. 2 shows the assembling structure schematic diagrams of lamp plate unit and lamp bead；

Fig. 3 shows the visual effect schematic diagram between vision and pixel；

Fig. 4 shows the visual effect schematic diagram between vision and lamp bead；

Fig. 5 shows lamp panel structure expanded schematic diagram.

Wherein, above-mentioned attached drawing includes the following drawings label：

10, lamp plate unit；11, upper side edge；12, lower side；13, first side；14, second side；

20, lamp bead group；

30, mounting bracket；40, arc mounting framework；

Specific implementation mode

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.

It should be noted that term " first ", " second " etc. in the description and claims of this application and attached drawing It is for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that the art used in this way Language can be interchanged in the appropriate case, so that presently filed embodiment described herein for example can be in addition to illustrating herein Or the sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit In those of clearly listing step or unit, but may include not listing clearly or for these processes, method, production The intrinsic other steps of product or equipment or unit.

For ease of description, herein can with use space relative terms, as " ... on ", " in ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (be rotated by 90 ° or be in other orientation), and And respective explanations are made to the opposite description in space used herein above.

Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein Formula.It should be understood that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand The big thickness of layer and region, and make that identical device is presented with like reference characters, thus omission retouches them It states.

In conjunction with shown in Fig. 1 to Fig. 4, embodiment according to the present utility model provides a kind of spherical surface display structure.

As shown in Figure 1, the spherical surface shows that structure includes lamp plate unit 10.Lamp plate unit 10 is multiple, multiple lamp plate units 10 are spliced to form spherical structure, the upper side edge 11 of the weft direction of the globally structure of lamp plate unit 10 and opposite with upper side edge 11 The arc-shaped structure of lower side 12 of setting, and the length of upper side edge 11 and lower side 12 is unequal, it is adjacent on weft direction The lower side 12 of the upper side edge 11 and another lamp plate unit 10 of a lamp plate unit 10 in two lamp plate units 10 being arranged It is disposed adjacently.

In the present embodiment, using the lamp plate cellular construction of the structure, the lamp plate unit can be made at horizontal field of view angle It is arbitrarily spliced and combined with the integral multiple of X degree, vertical field of view angle is arbitrarily spliced and combined with the integral multiple of Y degree to form spherical shape Show structure.Setting can effectively improve the display effect of the display structure in this way.Wherein, XY values are related to diameter, and one As, the unit module of division meets the requirement of human factor engineering standard in design weight, size.For example, diameter 7000mm Spherical surface screen, X values are that 15, Y values are 10.

Wherein, the first side 13 of the warp direction of the globally structure of lamp plate unit 10 and opposite with first side 13 Second side 14 is straight flange structure.Setting can effectively improve the display effect of the display structure in this way.

As shown in Fig. 2, spherical surface shows that structure further includes lamp bead group 20.Lamp bead group 20 is multiple, and multiple lamp bead groups 20 are along latitude Line direction is evenly arranged on lamp plate unit 10, and lamp bead group 20 includes multiple lamp beads 21.Center between adjacent lamp bead 21 Distance is L, L=P-N, wherein pre-determined distances of the P between adjacent lamp bead 21, N are offset.Preferably, P=1.875mm, N ≤1mm.I.e. in the present embodiment, which shows that structure can be a kind of spherical surface display screen, spherical surface display screen include by warp, The lamp point arranging rule of weft direction is set based on the optimization for carrying out algorithm realization progress based on human eye vision, convenient for computer Meter.

As shown in Fig. 2, the lamp plate unit shows the lamp group of tri- groups of structures of G1, G2, G3, wherein each lamp bead group 20 In lamp bead 21 quantity it is identical, the quantity of the lamp bead 21 in two adjacent lamp bead groups 20 differs.Lamp in lamp bead group 20 Pearl 21 is arranged in rows along weft direction, and the number of the lamp bead 21 on each row is identical.Setting enables to the row of lamp bead in this way Cloth position is effectively optimized, and has the function that the display effect for improving lamp bead.

In order to avoid the lamp bead on lamp plate unit is fallen just at the splicing seams of lamp plate unit, by lamp bead group 20 Lamp bead 21 close to first side 13 is set as the half of pre-determined distance at a distance from the edge of first side 13.By lamp bead group 20 The lamp bead 21 of close second side 14 half of pre-determined distance is also configured as at a distance from the edge of second side 14.

Further, be n1 close to the lamp bead 21 along weft direction setting of upper side edge 11, when adjacent lamp bead 21 it Between distance when being less than P-N, on the lower side 12 for another lamp plate unit 10 being disposed adjacent with the upper side edge 11 along weft The lamp bead 21 of direction setting is k, wherein k >=1.Setting can reasonably arrange that the lamp bead in each group places position in this way It sets.

In order to improve the stability and reliability of the display structure, which shows that structure further includes mounting bracket 30 and arc Shape mounting framework 40.Lamp plate unit 10 is connected with mounting bracket 30.Mounting bracket 30 is connected with arc mounting framework 40.

Spherical surface in above-described embodiment shows that structure can be also used for CAVE system equipment technical fields, i.e., according to this practicality Novel another aspect provides a kind of CAVE systems.The CAVE systems include that spherical surface shows structure.Spherical surface shows that structure is upper The spherical surface stated in embodiment shows structure.

In the prior art, when splicing accuracy is of less demanding, spherical surface cutting can be approximatively trapezoidal, four sides by we Shape.When viewing distance farther out when, can still bring good experience effect.But as structure CAVE systems spherical surface screen, Since viewing distance is closer, trapezoidal, quadrangle, including cylinder splicing, it can be appreciated that splicing gap, reduce experience effect.It is true On, since two weft length of spherical surface is different, from two cross sections of sphere, this slice can be regarded as a circle Platform, along warp direction vertical cut, you can constitute the lamp plate of round table surface.The seam crossing of upper and lower two lamp plate, along the intersection of two round platforms Splicing, it can be ensured that seamless.

In the present embodiment, spherical surface shows a diameter of 7000mm of structure, normal pitch 1.875mm, vertical field of view angle edge Equator is equally divided into 6 babinets 90 degree towards in, along warp direction.As shown in figure 5, in figure AB be warp on a part, BC, AD is weft, and angle AOB is equal to 15 degree, and 30 degree of angle AOK etc., BC are the top edge of babinet (several lamp plate unit spliceds form), AD is the lower edge of babinet.

In this way, after weft BC is deployed into a plane, it will formed one using P as the center of circle, using PB as the covering of the fan of radius, latitude After line AD is deployed into a plane, it will formed one using P as the center of circle, using PA as the covering of the fan of radius, two covering of the fans subtract overlapping Part is the developed surface of ADCB round platforms.

By the way of layouting in the prior art to lamp bead, lamp bead is be easy to cause just by the wire cutting of the edge B, C.For The technical problem is solved, as shown in figure 3, two pixel (LED light) spacing are P, observer's cornea eye is straight to 2 points Linear distance is D, then view angle theta can calculate as follows, i.e.,When θ is smaller, haveDue to point of human eye The ability of distinguishing is limited, and when P is reached a certain level, eyes just can not be identified the two and put, that is, our senses for often saying By the granular sensation less than LED display.

As shown in figure 4, on small space distance LED display screen, since θ values are smaller, if the angles θ in terms of arc point,The sharpness of vision that eyes differentiate scenery details is determined by the photosensitive cell size of people, when two Point is imaged on macular area, and the limiting value of resolution ratio is about 1 arc point.At this point, two LED pixels o'clock on a photosensitive cell at Picture, it is two pixels that human eye, which will be unable to tell,；When two pixels are imaged on two neighboring photosensitive cells, i.e. 1 ＜ θ When ＜ 2, it is two neighbor pixels that human eye, which may feel that, different depending on the granular sensation of different sizes of LED light, but unobvious；As θ ＞ When 2, human eye sees that two LED light have apparent granular sensation.

And snap shot method in the prior art is improved to pel spacing value and allows to be less than the error that 1 arc divides, rather than it is certain Ratio.In the present embodiment, in the Internal Spherical Surface of diameter 7000mm, LED lamp bead maximum spacing P is 1.875mm, is seen at the centre of sphere It sees, view angle theta is 1.84 arcs point；Visual angle is 1 arc timesharing, and LED lamp bead spacing is 1mm.As can be seen that ensure good display effect The changing value of fruit, LED lamp bead is an absolute value less than 1mm rather than a relative value.In this example, it is less than 1mm's It is required that giving a larger variation range.Accordingly, the variation of LED lamp bead can be carried out by following rule：

The lamp bead of weft on lamp plate unit is grouped, the lamp bead on every group of weft presses following regular array：First side The width of side, second side lamp bead apart from edge is the same, and each group of lamp bead quantity is the same on weft, spacing mean allocation, when When lamp bead is smaller than P-N (N is offset, is less than 1mm in this example), snap shot is carried out on weft, is transitioned into second group, Remaining the rest may be inferred, when upon transition to pole, only retains a LED lamp bead on the edge of side.I.e. when multiple lamp bead groups edge When weft direction transits to the pole of spherical structure, the lamp bead at pole is set to the first side or second of lamp plate unit The edge of side.

Specifically, as shown in Fig. 2, every group of G1, G2, G3 lamp bead quantity on weft direction is the same, close to the first of piece Lamp bead on side, second side warp is uniformly arranged along same warp, it is ensured that lamp bead is away from first side, second side adjacent lamps The lamp bead interval of plate unit is equidistant.Although lamp bead has error along warp direction among two adjacent groups, this control errors 1 In the visual angle of arc point, human eye can not just tell this error.Certainly, the visual resolving power with coloration of human eye, brightness also have Certain relationship, therefore, according to different application demands, appropriate value can obtain satisfaction in the error range less than 1 arc point Visual effect.

Further, G3 groups lamp bead ascender line and descender line are camber line, and curvature is the same, but length is different, same weft 20 lamp beads of upper arrangement are necessarily small away from the lamp bead spacing on upper edge weft if the spacing under most on weft is 1.875mm In 1.875mm.If it is 1mm (corresponding vision addressability is 1 arc point) to allow pitch offset, when G3 group upper edge lamp bead spacing is small When 0.875mm, lower in G2 groups reduces by 1~N lamp bead along weft so that on the weft lamp bead spacing close to 1.875, The lamp bead quantity of reduction is determined by spacing.Transit to next group.

To avoid lamp bead on lamp plate from being just arranged on the piece of the two pieces of adjacent lamp plates in left and right, in arrangement, every piece is first arranged One lamp bead of Far Left and rightmost of lamp plate, the lamp bead centre-to-centre spacing left and right edges distance is the same, about 1.875mm × 1/2, in Between lamp bead press the above regular array.The arrangement of lamp bead, spacing are equal on adjacent rows, i.e., same warp and two weft crosspoints For 1.875mm.

It arranges in this way, first, can effectively avoid the problem of cutting lamp bead just along the piece of warp direction；Second is that corresponding Datum line can reduce the algorithm difficulty that computer generates emulation visual system；Third, different weft lamp beads are the same in same group, Scenery picture, which is not required to deformation, to be shown, computer visual system arithmetic speed can be improved.

Than that described above, it is also necessary to which explanation is " one embodiment " spoken of in the present specification, " another implementation Example ", " embodiment " etc. refer to that specific features, structure or the feature of embodiment description is combined to be included in the application summary Property description at least one embodiment in.It is not centainly to refer to the same reality that statement of the same race, which occur, in multiple places in the description Apply example.Furthermore, it is understood that when describing a specific features, structure or feature in conjunction with any embodiment, what is advocated is knot Other embodiment is closed to realize that this feature, structure or feature are also fallen in the scope of the utility model.

In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, it may refer to the associated description of other embodiment.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (11)

1. a kind of spherical surface shows structure, which is characterized in that including：

Lamp plate unit (10), the lamp plate unit (10) are multiple, and multiple lamp plate units (10) are spliced to form spherical structure, The upper side edge (11) of the weft direction along the spherical structure of the lamp plate unit (10) and opposite with the upper side edge (11) The arc-shaped structure of lower side (12) of setting, and the length of the upper side edge (11) and the lower side (12) is unequal, The upper side edge of a lamp plate unit (10) in two lamp plate units (10) being disposed adjacent on weft direction (11) lower side (12) with lamp plate unit (10) described in another is disposed adjacently.

2. spherical surface according to claim 1 shows structure, which is characterized in that the lamp plate unit (10) along the spherical surface The first side (13) of the warp direction of structure and the second side (14) opposite with the first side (13) are straight flange knot Structure.

3. spherical surface according to claim 2 shows structure, which is characterized in that the spherical surface shows that structure further includes：

Lamp bead group (20), the lamp bead group (20) are multiple, and multiple lamp bead groups (20) are evenly arranged in along weft direction On the lamp plate unit (10), the lamp bead group (20) includes multiple lamp beads (21), the centre-to-centre spacing between adjacent lamp bead (21) From for L, L=P-N, wherein pre-determined distances of the P between the adjacent lamp bead (21), N is offset.

4. spherical surface according to claim 3 shows structure, which is characterized in that P=1.875mm, and/or, N≤1mm.

5. spherical surface according to claim 3 shows structure, which is characterized in that described in each described lamp bead group (20) The quantity of lamp bead (21) is identical, and the quantity of the lamp bead (21) in the adjacent two lamp bead groups (20) differs.

6. spherical surface according to claim 3 shows structure, which is characterized in that the lamp bead in the lamp bead group (20) (21) it is arranged in rows along weft direction, the number of the lamp bead (21) on each row is identical.

7. spherical surface according to claim 3 shows structure, which is characterized in that close described the first of the lamp bead group (20) The lamp bead (21) of side (13) is the half of pre-determined distance at a distance from the edge of the first side (13), and/or, institute State the edge of the lamp bead (21) and the second side (14) close to the second side (14) of lamp bead group (20) away from From the half for pre-determined distance.

8. spherical surface according to claim 3 shows structure, which is characterized in that close to the upper side edge (11) along weft side It it is n1 to the lamp bead (21) of setting, when the distance between adjacent described lamp bead (21) is less than P-N, on described in this Being arranged along weft direction on the lower side (12) for another lamp plate unit (10) that side (11) is disposed adjacent The lamp bead (21) is k, wherein k >=1.

9. spherical surface according to claim 3 shows structure, which is characterized in that when multiple lamp bead groups (20) are along weft side When to the pole for transitting to the spherical structure, it is located at the lamp bead (21) at the pole and is set to the lamp plate unit (10) edge of first side (13) or second side (14).

10. spherical surface according to claim 1 shows structure, which is characterized in that the spherical surface shows that structure further includes：

Mounting bracket (30), the lamp plate unit (10) are connected with the mounting bracket (30)；

Arc mounting framework (40), the mounting bracket (30) are connected with the arc mounting framework (40).

11. a kind of CAVE systems, including spherical surface shows structure, which is characterized in that the spherical surface show structure be claim 1 to Spherical surface described in any one of 10 shows structure.