A curved display screen and its bearing architecture, forming method

Abstract

The present application relates to the technical field of LED screen display, and particularly relates to a curved display screen and a bearing architecture and a forming method thereof, in the forming method of the curved display screen, the size of the virtual display module is mapped to the size of the materialized display module, all the sizes of the virtual display modules are proportionally enlarged or reduced to the plane size of the materialized display module, that is, the display module for actual assembly is a plane panel structure, the display module of the plane panel structure is easy to process and the size precision is easy to control, in addition, the display module is edge-reduced, and the space for adjustment is left for the adjacent two display modules, and the adjustment protrusions are left on each edge, so that the display module can avoid forming gaps in the splicing process under the condition that the processing precision is not high, when the installation is too tight, the adjustment protrusions of the display module with large size are processed, so that the assembly precision can be ensured, the installation precision is effectively improved, and the cumulative error is eliminated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of LED screen display, in particular to a curved display screen and a bearing architecture and a forming method thereof. BACKGROUND

[0002] With the continuous development of the LED industry, in order to meet the market demand, large curved LED display screens are also more and more, and at present large curved LED display screen is connected by LED modules of the same size, and after assembly, there are problems such as poor flatness, large gap, and finally poor display effect. Therefore, a forming method of large curved LED screen is proposed, including the following steps: 1) forming a screen model; 2) defining the plane of the cross-section circle with diameter D as the equatorial plane, and equally dividing the arc surface of the large spherical LED screen model into a plurality of isometric LED screen module strips in the upward and downward symmetrical directions from the equatorial plane; 3) using fixed angle division into even parts, and the size of the trapezoidal LED screen module is the same, and is divided row by row downward; when the width size of the bottom module is less than a certain size, 2 times the fixed angle is used for re-division. In turn, the size and shape of each LED screen module are obtained by completing the division; 4) according to the size and shape, each LED screen module is sequentially numbered, processed and assembled to complete the complete large curved LED screen. However, the forming method still has the following problems: 1) the LED screen module formed by the above method is a curved screen module, and the process implementation is difficult during processing, and the cost is too high; 2) the precision of the curved screen module is difficult to control, and the curvature of the curved screen module may not exactly match the curved skeleton, and the error accumulation caused by installation finally leads to serious corrugation of the curved display screen. SUMMARY

[0003] In order to solve the technical problems of large curved LED screen manufacturing difficulty and poor display effect in the prior art, the present application provides a curved display screen and a bearing architecture and a forming method thereof, the display module of which is a plane panel, easy to manufacture, low cost, and convenient to adjust and install, and good display effect. The technical scheme of the present application is as follows:

[0004] In one aspect of the present application, a curved display screen forming method is provided, comprising:

[0005] Modeling a virtual display layer in a curved shape, respectively averaging and virtually dividing the display layer in the transverse and longitudinal directions to obtain a plurality of virtual display modules, and calculating the size of each virtual display module;

[0006] The size of the virtual display module is mapped to the size of the materialized display module, and the size of all virtual display modules is enlarged or reduced in proportion to the plane size of the materialized display module;

[0007] The edge of the materialized display module is shrunk, and at least two adjusting protrusions are left on each edge of the materialized display module, the adjusting protrusions extending a distance less than half the length of the shrunk edge of the materialized display module;

[0008] A virtual adjusting layer is constructed, the adjusting layer being composed of a plurality of virtual panels, each of the virtual panels corresponding to a plurality of arrays of virtual display modules, the virtual panels being identical in size to the corresponding plurality of virtual display modules;

[0009] The size of the virtual panel is mapped to the size of the materialized panel, and the size of all virtual panels is multiplied by a derivation coefficient of a curved surface to plane line to obtain the plane size of the materialized panel;

[0010] The materialized display module is assembled and debugged with the materialized panel to form a complete curved display screen.

[0011] Further, the display layer is a spherical screen, a plane where a cross-section circle with a diameter D is located is defined as an equatorial plane, the display layer is symmetrically divided into a plurality of isosceles trapezoidal arc display modules in two directions upward and downward from the equatorial plane, display modules upward from the equatorial plane are defined as the first, second, …, and nth isosceles trapezoidal arc display modules, and the size of the virtual display module is: wherein a n is the lower base arc length of the nth isosceles trapezoidal arc, a n+1 is the upper base arc length of the nth isosceles trapezoidal arc, c n is the arc length of the two legs of the nth isosceles trapezoidal arc, l n is the length of the parallel of latitude where the lower base of the nth isosceles trapezoid is located, l n+1 is the length of the parallel of latitude where the upper base of the nth isosceles trapezoid is located, x is a lateral equal division number of the spherical screen, y is a longitudinal equal division number of the spherical screen, and l 经 is the length of the meridian of the spherical screen.

[0012] Further, the display layer is virtually divided in the lateral and longitudinal directions by fixed angles θ and λ, respectively.

[0013] Further, after the size of the materialized display module is obtained, the four edges of the materialized display module are shrunk by an equal distance s, and at least two adjusting protrusions are left on each edge of the materialized display module, the adjusting protrusions extending a distance less than s / 2.

[0014] Further, the virtual panel is also an isosceles trapezoidal arc, one of the virtual panels corresponding to M*N arrays of display modules, wherein M is the number of columns, and N is the number of rows, and the size of the virtual panel is A 下底 =M*a n , and A 上底 =M*an+1 C=N*c n wherein A 下底 is the lower base arc length of the virtual panel, A 上底 is the upper base arc length of the virtual panel, and C is the two waist arc length of the virtual panel.

[0015] Further, the arc length of the lower base, upper base and two waist of the virtual panel is multiplied by the derivation coefficient of the curve to the plane line to obtain the plane size of the materialized panel, and the calculation method of the derivation coefficient is: ξ = [(D-β) / D]x(H / Lh) + t*α, D is the diameter of the dome screen, β is the sphere change rate, H is the height from the center of the dome screen, Lh is the arc length of the position corresponding to H, t is the material thickness, and α = ΔL / (L*ΔT).

[0016] Further, the plane line of the lower base, upper base and two waist of the materialized panel after the plane conversion is concavely curved, and the curvature of the concave curvature is equal to the curvature of the arc where the lower base, upper base and two waist of the virtual panel are located.

[0017] In another aspect of the present application, a curved display screen is provided, comprising a display layer and an adjustment layer, the display layer comprising a plurality of display modules, at least two adjustment protrusions being arranged on each side of the display module, and the protrusions of adjacent two display modules corresponding to each other, the adjustment layer being composed of a plurality of panels, each of the panels corresponding to a plurality of arrayed display modules, the size of the panel being consistent with that of the corresponding plurality of display modules, and each side of the panel being provided with a concave curvature so that the adjacent panels form point contact.

[0018] Further, the substrate of the display module is a printed board, a plurality of light emitting pixels being arranged on the light emitting surface of the printed board, and at least one sound transmission hole penetrating through the printed board being arranged between adjacent light emitting pixels.

[0019] Further, the back surface of the light emitting surface of the printed board is configured as a driving surface, the driving surface being provided with a connector, an integrated circuit and a driving device, the driving device being electrically connected to the light emitting pixels through the integrated circuit to drive and control the light emitting pixels, the driving device being electrically connected to the terminals of the connector through the integrated circuit, and the terminals of the connector being connected to an image processing unit and a power supply unit respectively to transmit display signals and power supply.

[0020] Further, the image processing unit is in communication with the display module through a control unit, the control unit comprising a plurality of control components, and the control components sending display data of each region to the corresponding display module to realize regional control of the display module.

[0021] In still another aspect of the present application, a curved display screen bearing structure is provided for bearing the curved display screen, comprising:

[0022] A main framework layer is formed to bear the framework;

[0023] A hyperboloid framework layer comprises a first curved layer connected with the bearing framework and a second curved layer connected with the first curved layer, and the curved display screen is installed on the second curved layer.

[0024] Further, the first curved layer comprises a plurality of transverse curved arc rod members, and the second curved layer comprises a plurality of longitudinal curved arc rod members, and the transverse curved arc rod members and the longitudinal curved arc rod members are connected alternately.

[0025] Further, the longitudinal curved arc rod members are connected with the inner periphery of the transverse curved arc rod members through a connecting assembly I, the connecting assembly I comprises a buckling member and a bayonet member, the buckling member is buckled on the longitudinal curved arc rod member, and the bayonet member clamps the transverse curved arc rod member and movably locks the transverse curved arc rod member on the outer surface of the buckling member.

[0026] Further, the hyperboloid framework layer is adjustably supported by the main framework layer, the main framework layer surrounds the outer periphery of the hyperboloid framework layer, a plurality of supporting members are adjustably arranged on the main framework layer, an upward acute angle opening is formed between the supporting members and the main framework layer, and the transverse curved arc rod members pass through the acute angle opening to form horizontal cantilevers.

[0027] Further, the main framework layer and the hyperboloid framework layer are further connected through a connecting assembly II, the connecting assembly II comprises a fixing frame, a screw rod and a clamp, the fixing frame is adjustably fixed on the main framework layer, the screw rod is adjustably arranged on the fixing frame, the end of the screw rod is fixed with the clamp, and the clamp can clamp the transverse curved arc rod member.

[0028] Based on the above technical solution, the technical effects that can be achieved by the present application are as follows:

[0029] 1. In the curved display screen forming method of the present application, the size of the virtual display module is mapped to the size of the materialized display module, and all the virtual display module sizes are enlarged or reduced in proportion to the plane size of the materialized display module, that is, the display module used for actual assembly is a flat panel structure, and the display module of the flat panel structure is easy to process and the size precision is easy to control.

[0030] 2. In order to adapt the flat panel structure to the curved skeleton, the display module of the flat panel structure is shrunk in the forming method of the present application, and at least two adjusting protrusions are reserved on each edge of the materialized display module, the adjusting protrusions extend a distance less than half of the shrinkage length of the materialized display module, due to the shrinkage of the display module, the space for adjustment of the adjacent two display modules is correspondingly reserved, further, the adjusting protrusions on each edge can avoid the gap formed in the display module splicing process under the condition of low processing precision, when the installation is too tight, the adjusting protrusions of the display module with large size are processed, which can ensure the splicing precision and effectively improve the installation precision and eliminate the cumulative error;

[0031] 3. As known from the above, in order to facilitate processing, the display module of the present application is designed as a flat panel structure, the flat size directly adopts the size of the virtual display module, and then the edge is shrunk and the adjusting protrusion is set, the shrinkage and the adjusting protrusion can of course play a certain adjusting role, but there will still be errors in actual installation, and when the installation range of the display module is expanded to the entire display layer, the cumulative error may be obvious, which will still affect the display effect. In order to further improve the installation precision and eliminate the cumulative error, the installation precision of the display module is adjusted by means of the adjusting layer in the forming method of the present application, that is, the display module is not directly installed on the curved skeleton, but is first installed on the plate, specifically, a plate corresponds to the installation of multiple array display modules, so that the installation precision of the display modules in the range of a plate is easier to control, further, the installation of the plate is controlled, and we know that if the plate also adopts a curved structure when it is made, its processing precision is also difficult to control, therefore, the plate of the present application also adopts a flat structure, but the present application does not directly convert the size of the virtual plate into the size of the materialized plate, because the area of the plate is relatively large, if the error generated by direct conversion is large, therefore, the plate is designed to obtain the size of the virtual plate first, and then the size of the virtual plate is multiplied by the derivation coefficient of the curved-to-flat line to obtain the flat size of the materialized plate, the flat size of the materialized plate is the real size of the plate, the size error of the plate obtained by conversion is smaller, and the cumulative error is correspondingly smaller;

[0032] 4. When the plate is spliced, on the one hand, it can be adjusted by means of the double-curved skeleton layer, and on the other hand, each edge of the plate has an inwardly recessed curve to avoid mutual interference. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A schematic view of the curved display screen forming method in the embodiment of the present application;

[0034] Figure 2A display layer transverse uniform cutting schematic diagram in the embodiment of the present application;

[0035] Figure 3 A display layer longitudinal uniform cutting schematic diagram in the embodiment of the present application;

[0036] Figure 4 A display layer cutting schematic diagram in the embodiment of the present application;

[0037] Figure 5 A display module structure schematic diagram in the embodiment of the present application;

[0038] Figure 6 A display module back structure schematic diagram in the embodiment of the present application;

[0039] Figure 7 A plate structure schematic diagram in the embodiment of the present application;

[0040] Figure 8 A derivation coefficient calculation schematic diagram in the embodiment of the present application;

[0041] Figure 9 A plate inner recess bending structure schematic diagram in the embodiment of the present application;

[0042] Figure 10 A plate assembly structure schematic diagram in the embodiment of the present application;

[0043] Figure 11 A display module assembly schematic diagram in the embodiment of the present application;

[0044] Figure 12 A main framework layer structure schematic diagram in the embodiment of the present application;

[0045] Figure 13 A display layer and adjustment layer structure schematic diagram in the embodiment of the present application;

[0046] Figure 14 A hyperboloid framework layer structure schematic diagram in the embodiment of the present application;

[0047] Figure 15 A support structure schematic diagram in the embodiment of the present application;

[0048] Figure 16 A connection assembly I structure schematic diagram in the embodiment of the present application;

[0049] Figure 17 A hyperboloid framework layer mounting structure schematic diagram in the embodiment of the present application;

[0050] Figure 18 A connection assembly II structure schematic diagram in the embodiment of the present application;

[0051] Figure 19 The installation structure of the adjusting layer in the embodiment of the present application is shown in the figure.

[0052] In the figure:

[0053] Display screen 1, display layer 11, display module 111, adjusting convex 1111, driving device 1112, connector 1113, magnetic steel 1114, light-emitting pixel 1115, sound-transmitting hole 1116, adjusting layer 12, plate member 121, inner concave curve 1211;

[0054] Double-curved surface framework layer 2, first curved surface layer 21, transverse curved arc rod member 211, second curved surface layer 22, longitudinal curved arc rod member 221, connecting assembly I 23, buckling member 231, bayonet member 232, connecting assembly II 24, fixing frame 241, screw 242, clamping hoop 243;

[0055] Main framework layer 3, support member 31. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the scope of protection of the present application.

[0057] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0058] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0059] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0060] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0061] In addition, it should be noted that the use of the terms "first", "second", and the like to describe various components does not limit the corresponding components in any way, and the above terms do not have special meanings unless otherwise stated, and therefore cannot be construed as limiting the scope of protection of the present application.

[0062] Embodiment:

[0063] As Figure 1 and 13 shown, the embodiment provides a curved display screen forming method, comprising the following steps:

[0064] S1: using modeling software to model a virtual display layer 11 in a curved shape, and virtually dividing the display layer 11 in the transverse and longitudinal directions respectively to obtain a plurality of virtual display modules 111, see Figures 2-3 In this embodiment, the display layer 11 in the form of a spherical screen is taken as an example, and the display layer 11 is virtually divided in the transverse and longitudinal directions by fixed angles θ and λ respectively when divided.

[0065] Then the size of each virtual display module 111 is calculated, and the calculation method of the size of the virtual display module 111 is as follows, see Figure 4 , define the plane of the cross section circle with diameter D as the equatorial plane, and symmetrically divide the display layer 11 into a plurality of display modules 111 in the form of isosceles trapezoidal arcs in the upward and downward directions from the equatorial plane, define each display module 111 in the form of an isosceles trapezoidal arc between two meridians upward from the equatorial plane as the first, second, …, nth display module 111 in the form of an isosceles trapezoidal arc, and the size of the virtual display module 111 is: Wherein, a n is the lower base arc length of the nth isosceles trapezoidal arc, a n+1 is the upper base arc length of the nth isosceles trapezoidal arc, c n is the arc length of the two legs of the nth isosceles trapezoidal arc, l n is the length of the parallel of latitude where the lower base of the nth isosceles trapezoid is located, l n+1 is the length of the parallel of latitude where the upper base of the nth isosceles trapezoid is located, x is the transverse equal division number of the spherical screen, y is the longitudinal equal division number of the spherical screen, and l 经 is the length of the meridian of the spherical screen.

[0066] Through the above method, the size of the display module 111 between each two meridians upward from the equatorial plane can be obtained, and due to the bilateral symmetry, the size of the display module 111 downward from the equatorial plane can also be obtained, so that the size of all virtual display modules 111 can be obtained.

[0067] S2: mapping the size of the virtual display module 111 to the size of the materialized display module 111, and all the sizes of the virtual display modules 111 correspond to the plane size of the materialized display module 111, specifically, all the sizes of the virtual display modules 111 can be enlarged or reduced in proportion to the plane size of the materialized display module 111, of course, the size of the virtual display module 111 can also be directly used as the plane size of the materialized display module 111, see Figure 5The physical display module 111 is a flat panel structure, that is, the actual assembled display module 111 is a flat panel structure. The flat panel structure display module 111 is easy to process and the dimensional accuracy is easy to control.

[0068] S3: In order to facilitate the adjustment of the display module 111, see Figures 5-6 The physical display module 111 is edge-reduced, specifically, the four edges of the physical display module 111 are reduced at equal distances. The edge-reduction distance s is 0.3mm-0.4mm, and preferably, the edge-reduction distance s is 0.35mm. At the same time, at least two adjustment protrusions 1111 are left on each edge of the physical display module 111. The extension distance of the adjustment protrusion 1111 is less than half of the edge-reduction length of the physical display module 111. Since the display module 111 is edge-reduced, the space for adjustment is left between the two adjacent display modules 111. The adjustment protrusion 1111 on each edge can avoid the formation of gaps in the display module 111 during the splicing process under the condition of low processing accuracy. When the installation is too tight, the adjustment protrusion of the display module 111 with large size can be processed to ensure the splicing accuracy and effectively improve the installation accuracy and eliminate the cumulative error.

[0069] S4: A virtual adjustment layer 12 is constructed. The adjustment layer 12 is composed of a plurality of virtual plate members 121. Each virtual plate member 121 corresponds to a plurality of arrays of virtual display modules 111. The virtual plate member 121 is consistent in size with the corresponding plurality of virtual display modules 111.

[0070] From the above, in order to facilitate processing, the display module 111 of the present application is designed as a flat panel structure, the flat size directly adopts the size of the virtual display module 111, and then the edge is reduced while the adjusting protrusion 1111 is arranged, of course, the edge reduction and the adjusting protrusion 1111 can play a certain adjusting role, but in actual installation, there will still be errors, and when the installation range of the display module 111 is expanded to the entire display layer 11, the cumulative error may be obvious, which will still affect the display effect. In order to further improve the installation precision and eliminate the cumulative error, the installation precision of the display module 111 is adjusted by means of the adjusting layer 12 in the forming method of the present application, that is, the display module 111 is not directly installed on the curved skeleton, but is first installed on the plate 121, specifically, one plate 121 corresponds to the installation of a plurality of array display modules 111, so that the installation precision of the display module 111 in the range of one plate 121 is easier to control, further, the installation of the plate 121 is controlled, and we know that if the plate 121 also adopts a curved structure when it is made, its processing precision is also difficult to control, therefore, the plate 121 of the present application also adopts a flat structure, but the present application does not directly convert the size of the virtual plate 121 into the size of the materialized plate 121, because the area of the plate 121 is relatively large, and if the error generated by direct conversion is large, therefore, the plate 121 is designed to obtain the size of the virtual plate 121 first, and then the size of the virtual plate 121 is multiplied by the deduced coefficient of the curved-to-flat line to obtain the flat size of the materialized plate 121, which is the real size of the plate 121, the size error of the plate 121 obtained by conversion is smaller, and the cumulative error is also smaller accordingly.

[0071] According to one embodiment of the present application, the virtual plate 121 is also an isosceles trapezoidal arc surface, one virtual plate 121 corresponds to M*N array display modules 111, wherein M is the number of columns, N is the number of rows, and the size of the virtual plate 121 is as follows: 下底 M*a n , A 上底 =M*a n+1 , C=N*c n , wherein A 下底 is the lower base arc length of the virtual plate 121, A 上底 is the upper base arc length of the virtual plate 121, and C is the two waist arc lengths of the virtual plate 121.

[0072] For example, in the present embodiment, referring to Figure 7 , one virtual plate 121 corresponds to 4*4 array display modules 111, so the size of the virtual plate 121 can be calculated by the size of 16 virtual display modules 111.

[0073] S5: The size of the virtual panel 121 is mapped to the size of the materialized panel 121, and all the sizes of the virtual panel 121 are multiplied by the derivation coefficient of the curve-to-plane line to obtain the plane size of the materialized panel 121.

[0074] According to one embodiment of the present application, the arc length of the lower base, the upper base and the two sides of the virtual panel 121 is multiplied by the derivation coefficient of the curve-to-plane line to obtain the plane size of the materialized panel 121, as shown in Figure 8 The calculation method of the derivation coefficient is: ξ = [(D-β) / D]x(H / Lh) + t*α, D is the diameter of the dome, β is the change rate of the sphere, H is the height from the center of the dome, Lh is the arc length of the position corresponding to H, t is the material thickness, and α = ΔL / (L*ΔT).

[0075] Further, as shown in Figure 7 and 9 , the lower base, the upper base and the two sides of the materialized panel 121 after plane conversion are curved inward, as shown in Figure 7 The curvature (i.e. R1, R2 and R3) of the inward curved materialized panel 121 after plane conversion is equal to the curvature of the arc where the lower base, the upper base and the two sides of the virtual panel 121 correspond. When the panel 121 is spliced, on the one hand, it can be adjusted by the hyperboloid architecture layer 2, and on the other hand, each edge of the panel 121 has an inward curved shape to avoid mutual interference.

[0076] S6: The materialized display module 111 is assembled and debugged with the materialized panel 121 to form a complete curved display screen.

[0077] The display screen 1 formed in the above manner has smaller cumulative error, higher assembly precision and better display effect.

[0078] The embodiment also provides a curved display screen, which comprises a display layer 11 and an adjustment layer 12, the display layer 11 comprises a plurality of display modules 111, at least two adjustment protrusions 1111 are arranged on each edge of the display module 111, and the protrusions of adjacent two display modules 111 correspond to each other, the adjustment layer 12 is composed of a plurality of panels 121, each panel 121 corresponds to a plurality of arrayed display modules 111, the size of the panel 121 is consistent with that of the corresponding plurality of display modules 111, and each edge of the panel 121 has an inward curved shape 1211. Therefore, in actual installation, the splicing of the panel 121 only has four points in contact with each other, and a gap is left in the middle. Since the machining precision of the panel 121 cannot be guaranteed, the gap is left to avoid mutual interference caused by large machining error of the panel 121.

[0079] If the precision of the hyperboloid architecture layer 2 is sufficient, board 121 can be omitted, and the display module 111 can be directly attached to the hyperboloid architecture layer 2. However, the following issues force us to use board 121: 1. The precision control of the hyperboloid architecture layer 2 is insufficient. The processing precision of board 121 is much higher than that of the hyperboloid architecture layer 2, and there is still room for adjustment when splicing them into a display surface; 2. The hyperboloid architecture layer 2 needs to bear weight, so it is designed as a steel structure. Due to cost, weight, and space layout reasons, it cannot be densely arranged, so it is not suitable for installing the display module 111 between them; 3. The processing size of the display module 111 is also limited and cannot be too large. Therefore, board 121 becomes the bridge connecting the hyperboloid architecture layer 2 and the display module 111.

[0080] According to one embodiment of the present invention, see Figure 5 and 6 The substrate of the display module 111 is a printed circuit board (PCB), which is a non-flexible PCB. The entire curved display screen requires splicing together multiple PCBs of different specifications. Multiple light-emitting pixels 1115 are arranged on the light-emitting surface of the PCB. The light-emitting pixels 1115 are fixed to the light-emitting surface by soldering. The back side of the light-emitting surface of the PCB is configured as a driving surface. A connector 1113, an integrated circuit, and a driving device 1112 are arranged on the driving surface. The integrated circuit, connector 1113, and driving device 1112 are fixed to the driving surface by soldering. The driving device 1112 is electrically connected to the light-emitting pixels 1115 through the integrated circuit to drive and control the light-emitting pixels 1115. The driving device 1112 is electrically connected to the terminals of the connector 1113 through the integrated circuit. The connector 1113 is connected to the image processing unit and the power supply unit respectively to transmit display signals and provide power.

[0081] According to one embodiment of the present invention, the image processing unit converts and processes a standard video source into an image suitable for playback on a dome display screen. Simultaneously, the image processing unit can also play 3D images, enabling the immersive dome display screen to have 3D playback functionality. In this embodiment, the curved display screen can be a complete sphere or a complete ellipse, or a quasi-spherical or quasi-ellipsoidal surface. It can be an arbitrarily cut arc surface of a sphere or ellipsoid, or an irregular display surface formed by splicing a sphere or ellipsoid with other shapes. The display surface can be on the outer surface or the inner surface of the sphere or ellipsoid.

[0082] According to one embodiment of the present invention, the image processing unit establishes communication with the display module 111 through the control unit. The control unit includes multiple sets of control components. The main function of the control components is to send the display data of each area to the corresponding display module 111, thereby realizing the regional control of the display module 111.

[0083] According to one embodiment of the present invention, the power supply unit includes multiple power supply components, the main function of which is to provide power to the display module 111.

[0084] For ease of wiring of display module 111, see [reference needed]. Figure 19 The center of panel 121 is hollowed out to form a square sound-permeable hole 1116, facilitating wiring, heat dissipation, and maintenance of the display module 111. Further, see... Figure 11 In order to facilitate the adjustment of the position of the display module 111, a magnet 1114 is also provided on the driving surface of the display module 111, and the display module 111 is connected to the board 121 through the magnet 1114.

[0085] According to one embodiment of the present invention, a plurality of sound-permeable holes 1116 are provided between the light-emitting pixels 1115. These sound-permeable holes 1116 can achieve multiple functions such as sound transmission, heat dissipation, and reducing screen weight. When a sound device is installed behind the display screen displaying an image, sound is transmitted through the sound-permeable holes 1116 and promptly transmitted to the viewer, providing a good visual and auditory experience and a strong sense of immersion. The spacing between the sound-permeable holes 1116 is not limited; it can be equal or unequal. The shape of the sound-permeable holes 1116 is also not limited; it can be any processable shape such as circular, elliptical, square, or trapezoidal. The sound-permeable holes 1116 must be through-holes penetrating both sides of the printed circuit board, and the total area of ​​the sound-permeable holes 1116 per unit area can achieve a sound transmittance of at least 3% for the LED display screen. Preferably, every four adjacent light-emitting pixels 1115 are arranged in a rhombus, square or rectangular shape, and the number of sound-transmitting holes 1116 between adjacent pixels can be single or multiple.

[0086] This embodiment also provides a curved display screen support structure for supporting the aforementioned curved display screen 1, such as... Figures 12-13 As shown, the curved display screen support structure includes a main structure layer 3 and a hyperboloid structure layer 2. The main structure layer 3 forms the main frame and plays a supporting role. The hyperboloid structure layer 2 includes a first curved layer 21 connected to the main frame and a second curved layer 22 connected to the first curved layer 21. The curved display screen is installed on the second curved layer 22. The hyperboloid structure layer 2 is used to adjust the curvature of the hyperboloid to meet the usage requirements.

[0087] In this embodiment, the hyperboloid architecture layer 2 can be formed into a sphere, an ellipsoid, a spherical crown, a rugby ball, a soccer ball, a vase, etc. The present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention.

[0088] According to one embodiment of the present invention, such as Figures 12-14As shown, the first curved surface layer 21 includes several transverse curved members 211, and the second curved surface layer 22 includes several longitudinal curved members 221. The transverse curved members 211 and the longitudinal curved members 221 are connected in an alternating manner. It should be noted that the members can be made of different cross-sections, different curvatures, and various different materials, and there are no restrictions on this.

[0089] Furthermore, such as Figure 15 and 16 As shown, the longitudinal curved member 221 is connected to the inner circumference of the transverse curved member 211 via connecting assembly I 23. Connecting assembly I 23 includes a fastening member 231 and a locking member 232. The fastening member 231 fastens onto the longitudinal curved member 221, and the locking member 232 clamps the transverse curved member 211 and movably locks it onto the outer surface of the fastening member 231. Connecting assembly I 23 can join the two sections of space frame A and space frame B (i.e., the two longitudinal curved members 221) in length using screws. The longitudinal curved member 221 is fixed to the transverse curved member 211 by the snap fastener 232. In this embodiment, the fastener 231 is fastened to the longitudinal curved member 221 and then fixed on both sides by screws. This can minimize the installation area occupied by the fastener 231. The longitudinal curved member 221 is relatively tight near the dome crown, and the fastener 231 can save more installation space. On the other hand, the snap fastener 232 also makes it easy to adjust the relative position of the longitudinal curved member 221.

[0090] According to one embodiment of the present invention, such as Figure 12 and 15 As shown, the hyperboloid structure layer 2 is adjustablely supported by the main structure layer 3, which surrounds the outer periphery of the hyperboloid structure layer 2. The main structure layer 3 is a frame structure and serves as the main load-bearing component of the entire dome screen. Multiple support members 31 are adjustablely mounted on the main structure layer 3. The support members 31 are fixed to the main structure layer 3 with screws, forming an upward-facing acute-angle opening between the support members 31 and the main structure layer 3. A transverse curved rod 211 passes through the acute-angle opening to form a horizontal cantilever. Furthermore, the connection point between the support member 31 and the main structure layer 3 has several holes for adjusting the angle of the support member 31. Preferably, the support member 31 is an angle steel.

[0091] Furthermore, such as Figure 17 and 18As shown, the main structure layer 3 and the hyperboloid structure layer 2 are also connected by a connecting component II 24. The connecting component II 24 includes a fixing frame 241, a screw 242, and a clamp 243. The fixing frame 241 is fixedly fixed to the main structure layer 3 in an adjustable position. The screw 242 is threadedly connected to the fixing frame 241. The screw can extend and retract relative to the fixing frame 241, which can adjust the relative position of the hyperboloid structure and the center of the sphere. The end of the screw 242 is fixed with a clamp 243, which can clamp the transverse curved member 211. In this embodiment, the clamp 243 is a circular bayonet, which makes it easier to adjust the transverse curved member 211 in the latitude direction. In addition, the clamp 243 in this embodiment is a combination of a hinge and a quick lock. The hinge is pulled open, the transverse curved member 211 is inserted into it, and the quick lock is quickly closed to complete the connection.

[0092] According to one embodiment of the present invention, such as Figure 19 As shown, the plate 121 of the adjustment layer 12 is fixedly connected to the longitudinal curved rod 221 by means of screws.

[0093] According to one embodiment of the present invention, it further includes a bracket, which is fixedly connected to the bottom end of the main steel structure layer 3.

[0094] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for forming a curved display screen, characterized in that, include: A curved virtual display layer (11) is modeled and formed. The display layer (11) is divided into multiple virtual display modules (111) by average virtual division along the horizontal and vertical directions respectively. The size of each virtual display module (111) is calculated. The size of the virtual display module (111) is mapped to the size of the materialized display module (111), and the size of all virtual display modules (111) corresponds to the planar size of the materialized display module (111); The materialized display module (111) is truncated at the edges, and at least two adjustment protrusions (1111) are left on each side of the materialized display module (111), wherein the extension distance of the adjustment protrusions (1111) is less than half the truncated edge length of the materialized display module (111); A virtual adjustment layer (12) is constructed, which is composed of multiple virtual boards (121). Each virtual board (121) corresponds to multiple arrays of virtual display modules (111). The virtual board (121) has the same size as the corresponding multiple virtual display modules (111). The dimensions of the virtual board (121) are mapped to the dimensions of the materialized board (121). The dimensions of all virtual boards (121) are multiplied by the derivation coefficient of curve to plane line to obtain the planar dimensions of the materialized board (121). The materialized display module (111) and the materialized board (121) are assembled and debugged to form a complete curved display screen.

2. The method for forming a curved display screen according to claim 1, characterized in that, The display layer (11) is a spherical screen. The plane containing the cross-sectional circle with diameter D is defined as the equatorial plane. The display layer (11) is symmetrically divided into multiple isosceles trapezoidal arc surface display modules (111) in both directions upward and downward from the equatorial plane. The display modules (111) are defined as the 1st, 2nd...nth isosceles trapezoidal arc surface display modules (111) upward from the equatorial plane. The dimensions of the virtual display module (111) are: , , ,in, Let be the arc length of the lower base of the nth isosceles trapezoidal arc surface. Let be the arc length of the upper base of the nth isosceles trapezoidal arc surface. Let be the arc lengths of the two sides of the nth isosceles trapezoidal arc surface. Let be the length of the latitude line containing the lower base of the nth isosceles trapezoid. Let be the length of the latitude line containing the upper base of the nth isosceles trapezoid. Divide the dome screen into equal horizontal sections. Divide the dome screen into equal sections along its length. This represents the length of the meridian of the dome screen.

3. The method for forming a curved display screen according to claim 1 or 2, characterized in that, The display layer (11) is virtually segmented along the horizontal and vertical directions using fixed angles θ and λ, respectively.

4. The method for forming a curved display screen according to claim 2, characterized in that, After obtaining the dimensions of the materialized display module (111), the four sides of the materialized display module (111) are equidistantly shrunken at a distance of s. At the same time, at least two adjustment protrusions (1111) are left on each side of the materialized display module (111), and the extension distance of the adjustment protrusions (1111) is less than s / 2.

5. The method for forming a curved display screen according to claim 2, characterized in that, The virtual plate (121) is also an isosceles trapezoidal arc surface, and one virtual plate (121) corresponds to * The array of display modules (111), among which, For column numbers, Given the row number, the dimensions of the virtual board (121) are: , , ,in, The lower arc length of the virtual plate (121) is given by the following formula. The upper bottom arc length of the virtual plate (121) is given. Let be the two waist arc lengths of the virtual plate (121).

6. The method for forming a curved display screen according to claim 5, characterized in that, The planar dimensions of the materialized plate (121) are obtained by multiplying the arc lengths of the bottom, top, and two waists of the virtual plate (121) by the derivation coefficient of the curve-to-plane line. The derivation coefficient is calculated as follows: ξ=[(D-β) / D]x(H / Lh)+t*α, where D is the diameter of the dome, β is the rate of change of the sphere, H is the height from the center of the dome, Lh is the arc length at the position corresponding to H, t is the material thickness, and α=ΔL / (L*ΔT).

7. The method for forming a curved display screen according to claim 6, characterized in that, The plane lines of the bottom, top, and two waists of the materialized plate (121) after the plane transformation are concavely bent. The curvature of the concave bend is equal to the curvature of the arc of the bottom, top, and two waists of the virtual plate (121) corresponding to the plane line.

8. A curved display screen, characterized in that, It includes a display layer (11) and an adjustment layer (12). The display layer (11) and the adjustment layer (12) are formed according to the forming method described in any one of claims 1 to 7. The display layer (11) includes a plurality of display modules (111), each of which has at least two adjustment protrusions (1111) on each side and the protrusions of two adjacent display modules (111) correspond to each other; The adjustment layer (12) is composed of multiple plates (121), each plate (121) corresponds to multiple arrays of display modules (111), the plate (121) and the corresponding multiple display modules (111) have the same size, and each side of the plate (121) has an inward curve (1211) so that adjacent plates (121) form point contact.

9. The curved display screen according to claim 8, characterized in that, The substrate of the display module (111) is a printed circuit board, and a plurality of light-emitting pixels (1115) are arranged on the light-emitting surface of the printed circuit board. At least one sound-transmitting hole (1116) is provided between adjacent light-emitting pixels (1115) through the printed circuit board.

10. The curved display screen according to claim 9, characterized in that, The back side of the light-emitting surface of the printed circuit board is configured as a driving surface. A connector (1113), an integrated circuit, and a driving device (1112) are disposed on the driving surface. The driving device (1112) is electrically connected to the light-emitting pixel (1115) through the integrated circuit to drive and control the light-emitting pixel (1115). The driving device (1112) is electrically connected to the terminal of the connector (1113) through the integrated circuit. The terminal of the connector (1113) is connected to the image processing unit and the power supply unit respectively to transmit display signals and supply power.

11. The curved display screen according to claim 10, characterized in that, The image processing unit establishes communication with the display module (111) through the control unit. The control unit contains multiple control components, which send the display data of each area to the corresponding display module (111) to realize the regional control of the display module (111).

12. A curved display screen support structure, characterized in that, include: The main architecture layer (3) forms the carrying architecture; Hyperbolic architecture layer (2) is combined with the main architecture layer (3); and A curved display screen (1) is installed on the hyperboloid architecture layer (2); The curved display screen (1) is the curved display screen as described in claim 8. The hyperboloid architecture layer (2) includes a first hyperboloid layer (21) connected to the supporting architecture and a second hyperboloid layer (22) connected to the first hyperboloid layer (21), and the hyperboloid display screen is mounted on the second hyperboloid layer (22).

13. The curved display screen support structure according to claim 12, characterized in that, The first curved layer (21) 21 includes a plurality of transverse curved members (211) 211, and the second curved layer (22) 22 includes a plurality of longitudinal curved members (221) 222, wherein the transverse curved members (211) and the longitudinal curved members (221) are connected in an alternating manner.

14. The curved display screen support structure according to claim 13, characterized in that, The longitudinal curved member (221) is connected to the inner periphery of the transverse curved member (211) by the connecting component I (23). The connecting component I (23) includes a fastening member (231) and a locking member (232). The fastening member (231) fastens onto the longitudinal curved member (221), and the locking member (232) clamps the transverse curved member (211) and movably locks the transverse curved member (211) onto the outer surface of the fastening member (231).

15. The curved display screen support structure according to claim 13, characterized in that, The hyperboloid structure layer (2) is adjustablely supported by the main structure layer (3), which surrounds the outer periphery of the hyperboloid structure layer (2). Multiple support members (31) 31 are adjustablely provided on the main structure layer (3). An upward acute-angle opening is formed between the support member (31) and the main structure layer (3). The transverse curved rod (211) passes through the acute-angle opening to form a horizontal cantilever.

16. The curved display screen support structure according to claim 15, characterized in that, The main structure layer (3) and the hyperboloid structure layer (2) are also connected by a connecting component II (24). The connecting component II (24) includes a fixing frame (241), a screw (242) and a clamp (243). The fixing frame (241) is fixed to the main structure layer (3) in an adjustable position. The screw (242) is set to the fixing frame (241) in an adjustable position. The end of the screw (242) is fixed with a clamp (243), which is a circular bayonet.

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