CN104978907A - LED display module group, and base frame disc and optical control circuit board both for same - Google Patents
LED display module group, and base frame disc and optical control circuit board both for same Download PDFInfo
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- CN104978907A CN104978907A CN201510452467.4A CN201510452467A CN104978907A CN 104978907 A CN104978907 A CN 104978907A CN 201510452467 A CN201510452467 A CN 201510452467A CN 104978907 A CN104978907 A CN 104978907A
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Abstract
The present invention discloses an LED display module group which is lightweight and transparent, electronic components on the LED display module group cannot be damaged when the LED display module group is bended, rolled and warped under the effect of an external force, and the LED display module group can recover after the external force is withdrawn. The present invention also discloses a base frame disc and an optical control circuit board both for the LED display module group. The LED display module group is formed by the base frame disc which is prepared by soft plastic and is chessboard grid shaped, and the LED optical control circuit board assembled on the base frame disc. Protection assembles which are waterproof, dustproof, impact resistant and anti-electromagnetic interference and can incompletely wrap light source substrates and LED lamp assemblies on the optical control circuit board are also disposed in light source positioning holes of the base frame disc. The protection assemblies can effectively protect the electronic components on the LED display module group from being damaged when the module group is under the effect of the external force. The LED display module group is lightweight, transparent and elastic, can be installed without being supported by complex and ponderous rigid structures, and can be installed in a suspension manner or a pasting manner. The LED display module group is low in investment cost, convenient to assemble and disassemble, good in safety performance, and high in wind load bearing capability, and the disassembled LED display module group can also be reused.
Description
Technical field
The present invention relates to a kind of LED display module, the LED display module of particularly can the bending at space curved surface of a kind of checkerboard, distortion, it can repeat to install and use, and withdraws from resilient after external force.
Background technology
In prior art, the LED of large format shows curtain wall and is formed by several LED display module group assemblings, and described LED display module mainly divides following a few class:
1) box-type: the numerous LED in order to form picture element are installed on circuit boards by matrix-style arrangement, circuit board is also provided with LED to control and driving chip, these parts form an electric appliance unit together with the P.e.c. on circuit board, then are installed in a semi-enclosed metal or plastic casing by this electric appliance unit (being in fact exactly one piece of circuit board as computer main board).The Main Function of this metal or plastic casing is to protect foregoing circuit plate when being subject to external force; structural deformation and detonator circuit fault can not be produced because extruding distortion; also play a part to arrange on the housing of above-mentioned metal or plastic casing the mounting structure be assembled into more needed for large format screen (showing curtain wall also known as LED), as arranged screw hole, hook etc. simultaneously.Above-mentioned circuit board, metal or plastic casing and turnover signal, power lead etc. just constitute the LED display module of a similar box-type.
Numerous box type LED display screen module is installed and is fixed to the LED display curtain wall that (being generally heavy steel structure frame) in structure forms large format.
2) grating type: above-mentioned box type LED display screen module itself is heavier and not penetrating, the LED display curtain installed by its combination is one block of huge whole plate, not only heaviness but also stuffy room without ventilation, therefore, occurs a kind of LED display module of grating type in row.
It is arranged on the circuit board of fine strip shape by numerous LED, in metal circuit board being embedded in U-shaped again or plastic channel, form a kind of lamp unit bar, equidistantly being lined up by required design by plurality of cells lamp bar is installed on a rigid frame, and the lamp bar of LED Sum fanction arrangement regularly arranged on lamp bar forms the pixel by matrix-style arrangement.Usually LED to be controlled and driving chip circuit board is arranged on the drives structure body at middle part or the two ends being positioned at lamp bar, more from it lead line with the LED controlled and on driving lamp bar.
Above-mentioned LED lamp bar, drives structure body are fixed on rigid frame and form grille type LED display screen module.Can find out this module removing lamp bar, drives structure body and unit framework, other parts are penetrating, just as the window shutter of a rectangle.Rigid frame is provided with by the screw hole of this module assembling combination, hook etc.
Numerous grille type LED display screen module installation is fixed to (being generally heavy steel structure frame) on large-scale rigid structure and forms the LED display curtain of large format.
3) LED module combined type LED display screen
Each picture element is directly installed on the carrier such as metope, billboard one by one, what form picture element is module containing LED, module described herein is the set of LED, circuit board and chip, it is the electric appliance unit of small size same specification, this electric appliance unit be cemented in a small plastic box or be directly encapsulated in transparent plastic article, each module is only a picture element, couples together between them with signal and power supply cable.Such as a kind of billboard screen, many holes is beaten regularly exactly on one piece of billboard with picture, then expose in this kind of LED module clump hole, by day, people see the pattern that billboard is shown, the LED module that night, these exposed is lighted and formed picture element one by one and be combined into various displaying contents under the control of signal.
Usually, adopt the resolution of the LED display curtain of this kind of module composition far below the resolution of the LED display curtain be made up of aforementioned two kinds of LED display modules.Its reason is the picture element that one piece of high-resolution screen has more than 1,000,000, this direct Method for Installation is too waste of manpower really, a kind of method is also had at present to be: first to form the LED module unit that fritter contains regularly arranged perforation, again several such unit combination are installed and form giant-screen, its objective is and reduce on-site installation work amount.
The benefit that picture element is installed one by one is adopted to be can change arbitrarily along with installation site, the occasions such as such as curved surface, because between LED module be the electric wire that can bend arbitrarily, unlike aforementioned two kinds of LED display modules, if complete curved surface just module itself must be manufactured curved surface, because they are all rigid bodies, itself be unyielding.If employing is pre-formed fritter and contains regularly arranged perforation LED module unit, be combined into giant-screen, so the speciality of its arbitrary surface change has not existed yet, because also become rigid element after being mounted to unit in advance, no longer can bend arbitrarily, distortion, as bent, also must be prefabricated by size in advance.
Above-mentioned several module all needs to be arranged on rigid objects.Thus, a LED display curtain construction or erection all need body structure surface or the framework of building a rigidity in advance.If build or set up large display screen just to need to destroy original structure to adhere to the rigid structure required for display screen at places such as building ground framing scaffold, skin, glass curtain walls, if on skyscraper or glass curtain wall surface, this just becomes consuming time, that expense is huge engineering, destroy original building simultaneously, if the display screen of Interim use, just become the project lost more than gain thus.
4) my the LED combination display screen described in utility model patent ZL2013200331378
It adopts LED display module to be directly bonded in (such as slippery walls and glass curtain wall) on attachment and forms giant-screen, the workload that this mode just adopts the mode of bonding installation to reduce punching or bolt to install, if form the high-resolution screen of large area, its workload or huge to completing, and on-the-spot artificial installation, installing space between each LED display module is also difficult to accurate assurance, simultaneously, the form of this individual module combination, be limited by the restriction of the electric properties such as chip, the overall brightness of screen is also difficult to improve at present, so be all the low-light level screen that cannot use daytime.
5) I another part utility model patent ZL2012200599349 " combination, hang LED display stretch-draw, binding syndeton "
It LED module or lamp bar is arranged on component units display screen (being equivalent to LED display module) recombinant on cancellated unit grid body to be installed in large-scale network and to form giant-screen, and my utility model 201220127867X " stretch-draw tight formula LED combination display screen " is hingedly connected on the large-scale reticulate texture that is made up of rope again forms giant-screen by evenly inlaying LED display module (being equivalent to LED display module) on the netted substrate be made up of light material simultaneously.Although these two kinds of LED display modules have certain permeability, but also fail to break away from the yoke that module is the rigid body that itself can not bend arbitrarily, cannot install realization in occasions such as complex-curved, little curved surfaces, particularly space curved surface, its installation fixed form quantities is larger simultaneously.
By the above-mentioned analysis to LED display, we find that no matter LED screen module is the hermetic type of box-type, or grid-like, latticed permeability, they are all the rigid bodies that itself can not bend under external force, structure and circuit will be caused to damage once be bent by external forces, be all heavy and that precision prescribed is higher large scale structure for combining the structure installing them simultaneously.Adopt the LED module mode of directly installing as picture element, or workload is huge, or is assembled into modular unit in advance and to become heaviness not penetrating, its electrical property of this circuit-mode, brightness is simultaneously also undesirable.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of light weight penetrating, produce bending, convolution, distortion under external force after the not damaged and LED that is resilient after withdrawing from this external force of electronic unit on it show module and pedestal dish used and light-operated circuit plate.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
LED of the present invention shows module, comprises LED, driving circuits, and its pedestal dish in checkerboard grid shape be made up of soft plastic and the LED light control circuit plate be assemblied on this pedestal dish are formed, wherein,
Pedestal dish is made up of some Gen Jing Dao Hewei roads intersection, and through Dao Yuwei road, enclosed space forms penetrating mesh, is provided with light source pilot hole at the crossover node place through Dao Yuwei road, and described is the circuit groove that cross section takes the shape of the letter U through Dao Hewei road;
LED light control circuit plate intersects by some horizontal signal transmssion lines and longitudinal signal transmission line the matrix form circuit network formed, arrange at the alternate nodes place of horizontal signal transmssion line and longitudinal signal transmission line the LED be arranged on light source substrate, described light source substrate is connected with described lateral transport line or longitudinal signal transmission line;
Described horizontal signal transmssion line and longitudinal signal transmission line are fixedly laid in described circuit groove, in light source pilot hole described in described light source substrate embeds, be also provided with in light source pilot hole and there is the shock-resistant and electromagnetism interference of water proof and dust proof and can from the bottom to top by guard assembly that the bottom of the described light source substrate be placed in one and LED lamp component and sidepiece not exclusively wrap;
Described horizontal signal transmssion line and longitudinal signal transmission line are flexible PCB or RV flexible cord.
Described light source substrate, horizontal signal transmssion line and longitudinal signal transmission line are flexible PCB, the circle that described guard assembly is made up of rigid or rectangular patch protective sheet, heat conduction glue-line, enclosing and marine glue form, be provided with in the peripheral intervals of protective sheet and upwards extend and the catch that can bend, wherein
Protective sheet is placed in pedestal and tries to get to the heart of a matter the position of crossover node described in face, and the catch on it is stretched upwards by the periphery of this crossover node and described light source pilot hole, light source substrate and the enclosing be placed on light source substrate wrapped;
Heat conduction glue-line to be coated between the inner bottom surface of protective sheet and described light source substrate and to be derived by this protective sheet by the heat on light source substrate;
LED light source be arranged at enclosing around light source substrate on;
Marine glue injects in the space between described enclosing and described LED light source;
The upper edge of described catch bends inwards holding on the upper limb of described enclosing.
Described light source substrate is hard plate, rounded or the rectangle of the cross sectional shape be made up of rigid of described guard assembly and bottom surface is closed peviform protective plate, heat conduction glue-line, enclosing and marine glue forms, peripheral intervals around described protective plate is provided with the sidewall upwards extended, passage for described horizontal signal transmssion line or longitudinal signal transmission line can be made to pass between adjacent wall, outward extending scene-affinity is provided with at the top of sidewall, wherein
Protective plate embeds in this light source pilot hole, stretches out light source pilot hole bottom it, and the scene-affinity holding on it is also bonding or be injection-moulded on pedestal dish;
Described light source substrate and the enclosing be placed on light source substrate are placed in protective plate, LED light source be arranged at enclosing around light source substrate on;
Marine glue injects in the space between described enclosing and described LED light source.
Described shape linearly shape or Curved through Dao Hewei road in described pedestal dish plane.
Described be pre-bending through Dao Hewei road on the direction of vertical described pedestal dish card.
The horizontal signal transmssion line be layed in described metallic channel and longitudinal signal transmission line inject Waterproof glue line.
Described protective sheet, protective plate by metal or duroplasts made.
Pedestal dish is also respectively equipped with the auxiliary pilot hole that can embed signal power source input and output joint and LED Drive and Control Circuit chip, described signal power source input and output joint or LED Drive and Control Circuit chip be arranged on be arranged at this auxiliary pilot hole place auxiliary substrate on, being provided with in this auxiliary pilot hole can from the bottom to top by described guard assembly that the signal power source input and output joint be placed in one or LED Drive and Control Circuit chip not exclusively wrap.
LED of the present invention shows flexible pedestal dish used in module, this pedestal dish is made up of soft plastic, whole pedestal dish is made up of some Gen Jing Dao Hewei roads intersection, through Dao Yuwei road, enclosed space forms penetrating mesh, be to embed the light source pilot hole arranging LED luminescence component through crossover node place, Dao Yuwei road, described is can lay signal transmssion line and the circuit groove that takes the shape of the letter U of cross section through Dao Hewei road.
LED of the present invention shows LED light control circuit plate used in module, comprise LED, Drive and Control Circuit, it forms matrix form by some horizontal signal transmssion lines and longitudinal signal transmission line intersection, described LED is mounted on the light source substrate at horizontal signal transmssion line and longitudinal signal transmission line crossover node place, described horizontal signal transmssion line and longitudinal signal transmission line are that RV is connected flexible cord or flexible PCB, and described light source substrate is flexible PCB or Rigid Flex.
Compared with prior art, LED of the present invention shows module and pedestal dish in checkerboard grid shape made by soft plastic and the LED light control circuit plate that LED, Drive and Control Circuit, IO interface and signal transmssion line form that comprises be assemblied on this pedestal dish forms.Each LED on it to be arranged on pedestal dish on grid node and to form the pixel of this module; by the light source substrate of LED, mounted LED lamp, drived control chip and signal input output interface respectively by the guard assembly available protecting be made up of metal or rigid plastic; this guard assembly has the shock-resistant effect of water proof and dust proof; under its state that can to produce bending, distortion or convolution by External Force Acting at this module, can the electronic unit of available protecting on it not damaged.Simultaneously; on the pedestal dish of checkerboard grid shape except have guard assembly protection portion divide except be all soft plastic and fexible conductor; can be bent by external forces, distortion; because whole pedestal dish is an accurate injection-moulded items; after withdrawing from external force; under the effect of within it stress, it can return to reason geomery again.Namely structure like this ensure that the related electronic components and parts that need protect, and other parts can be allowed again can be out of shape and to recover, be applicable to reusing.
Light weight of the present invention is penetrating and have elasticity, without the need to complicated heavy rigid structural support during installation, in the occasion needing to hang, on such as building ground framing scaffold, buildings is outside, can by their permutation and combination colligations on the significantly plastic wire of load, more above-mentioned occasion being hanging to; For surfaces such as glass curtain wall, slippery walls, billboards; can have on above-mentioned pedestal dish guard assembly protection rigid element bottom impose pressure sensitive adhesive; just single pedestal dish can be taken LED of the present invention to show module and paste above-mentioned occasion, a large amount of they just can be formed the screen of large format by the mode permutation and combination of pasting.According to the profile of above-mentioned support occasion, the change along with metope shape changes by the LED display curtain formed by it, can be plane, sphere or other is special-shaped curved.
To sum up, cost of investment of the present invention is low, install with remove easy, security performance good, it is strong to bear wind-loading resistance, the LED display module after dismounting is still reusable.Best enforcement place of the present invention is the building ground framing scaffold, skin, glass curtain wall surface, grassland, square, massif etc. of short-period used, and the business activities such as it is real estate building live commercial, large-scale social recreational and sports activities publicize temporarily, the activity of large-scale outdoors performance, the performance of large-scale Outdoor Scene formula realize the low cost of video playback, Fast Installation and reusable sharp weapon.
Accompanying drawing explanation
Fig. 1 is pedestal dish enlarged diagram of the present invention.
Fig. 2 is one of display module schematic diagram of the present invention.
Fig. 3 is the enlarged diagram in S portion in Fig. 2.
Fig. 4 is A-A cut-open view in Fig. 3.
Fig. 5 is B-B cut-open view in Fig. 3.
Fig. 6 is C-C cut-open view in Fig. 3.
Fig. 7 is the enlarged diagram in T portion in Fig. 2.
Fig. 8 is D-D cutaway view Amplified image in Fig. 7.
Fig. 9 is display module schematic diagram two of the present invention.
Figure 10 is display module schematic diagram three of the present invention.
Figure 11 is that one of enlargement decomposition assembled by guard assembly of the present invention and pedestal dish.
Figure 12 is that two of exploded view amplification assembled by guard assembly of the present invention and pedestal dish.
Figure 13 is that three of exploded view amplification assembled by guard assembly of the present invention and pedestal dish.
Figure 14 is that four of exploded view amplification assembled by guard assembly of the present invention and pedestal dish.
Figure 15 is that five of exploded view amplification assembled by guard assembly of the present invention and pedestal dish.
Figure 16 is that six of exploded view amplification assembled by guard assembly of the present invention and pedestal dish.
Figure 17 is that seven of exploded view amplification assembled by guard assembly of the present invention and pedestal dish.
Reference numeral is as follows:
Pedestal dish 10, through road 11, latitude road 12, crossover node 13, light source pilot hole 14, auxiliary pilot hole 15, circuit groove 16, horizontal signal transmssion line and longitudinal signal transmission line 20, alternate nodes 21, light source substrate 30, LED 31, guard assembly 40, protective sheet 41, catch 42, protective plate 43, sidewall 44, scene-affinity 45, enclosing 46, heat conduction glue-line 47, marine glue 48, signal power source input and output joint 50, LED Drive and Control Circuit chip 60, auxiliary substrate 70, bottom sticker 80.
Embodiment
As shown in figs. 2-10: the pedestal dish 10 in checkerboard grid shape (see Fig. 1) that LED display module of the present invention is made up of soft plastic is formed with being assemblied in the LED light control circuit plate on this pedestal dish 10 and can playing water proof and dust proof guard assembly 40 that is shock-resistant and electromagnetism interference effect to the electronic unit on LED light control circuit plate.
Show module by several LED of the present invention and can be assembled into large-scale LED display curtain wall.
Now introduce each parts in this module respectively:
1, pedestal dish 10
Described pedestal dish 10 is by soft plastic single injection-molded, it is made up of the some Gen Jing Dao11He Wei roads 12 anyhow intersected, through Dao11Yu Wei road 12, enclosed space forms penetrating mesh, be provided with light source pilot hole 14 (this light source pilot hole 14 is different according to described LED light control circuit plate and guard assembly 40 at 12 crossover node 13 places through Dao11Yu Wei road, be set to through hole and non through hole two kinds of structures), described is the circuit groove 16 that cross section takes the shape of the letter U through Dao11He Wei road 12.
The shape of pedestal dish 10 Shang Jing Dao11He Wei road 12 in described pedestal dish 10 plane can linearly shape or Curved.Meanwhile, the direction of vertical pedestal dish 10 card also can be designed to pre-bending.This structure can be conducive to the installation that this LED shows module greatly, namely by having the feature of certain telescopic resilience through Dao11He Wei road 12, on the support object of irregular point of fixity, by suitable, slight tensile force is imposed to mesh, just can be fixed on the fulcrum of not too rule of this support object, and without the need to as the shortcoming that must build regular fulcrum in prior art and just can be fixed.Its advantage for convenience of installing, because of ground be suitable for, installation cost is low.
As further improvement, on pedestal dish 10, (the preferred avris position of the present invention) is also respectively equipped with and can embeds signal power source input and output joint 50 and (be namely separated signal power source input adapter and the out splice going splice of setting, the signal wire of LED module has input end and input end, that signal is gone down in the transmission of each membrane module, they should in both sides, namely exporting is connected in the input of next module, connect successively, power supply is parallel relationship on each module, physically be similar to signal wire, for convenience of label herein by it referred to as signal power source input and output joint 50, lower with) and the auxiliary pilot hole 15 (this auxiliary pilot hole 15 is also set to through hole and non through hole two kinds of structures) of LED drived control chip.
2, LED light control circuit plate
Described LED light control circuit plate intersects by some horizontal signal transmssion lines and longitudinal signal transmission line 20 the matrix form circuit network formed, at alternate nodes 21 place of horizontal signal transmssion line and longitudinal signal transmission line, light source substrate 30 is set, LED 31 is arranged on this light source substrate 30, and described light source substrate 30 is connected with described horizontal signal transmssion line or longitudinal signal transmission line electricity; Described horizontal signal transmssion line and longitudinal signal transmission line are that RV is connected flexible cord, flexible PCB or Rigid Flex, and described light source substrate 30 can be flexible PCB or hard pcb board (for glass-fiber-plate or aluminium base pcb board).
This LED light control circuit plate can be a complete circuit board, electronic component (as LED 31, driving chip and other electric elements) on it by the disposable installation of the automation equipments such as chip mounter on the board, can enhance productivity, product quality and installation effectiveness by this kind of mode.
Described light source substrate 30 embeds in described light source pilot hole 14, and when described horizontal signal transmssion line and longitudinal signal transmission line 20 are flexible PCB, described light source substrate 30 is the flexible PCBs be integrated with this flexible PCB; When described horizontal signal transmssion line is connected flexible cord or Rigid Flex with longitudinal signal transmission line 20 for RV, described light source substrate 30 is the flexible PCB or hard pcb board that are electrically connected with this signal transmssion line.
Described signal power source input and output joint 50 and LED drived control chip are arranged on the auxiliary substrate 70 at described auxiliary pilot hole 15 place being arranged at correspondence respectively.
Equally, when described horizontal signal transmssion line and longitudinal signal transmission line 20 are flexible PCB, described auxiliary substrate 70 is the flexible PCBs be integrated with this flexible PCB; When described horizontal signal transmssion line is connected flexible cord or Rigid Flex with longitudinal signal transmission line 20 for RV, described auxiliary substrate 70 is the flexible PCB or hard pcb board that are electrically connected with this signal transmssion line.
Described horizontal signal transmssion line and longitudinal signal transmission line to embed in described circuit groove 16 and inject marine glue 48 thereon and fixed.
3, guard assembly 40
Its effect makes to be arranged on pedestal dish 10 has the shock-resistant and anti-electromagnetic interference capability of water proof and dust proof by light source substrate 30 and the luminescence component that LED 31 is formed and the auxiliary assembly that is made up of auxiliary substrate 70 and corresponding signal power source input and output joint 50 and LED drived control chip.
Guard assembly 40 of the present invention, for the difference of described light source substrate 30, auxiliary substrate 70, can be divided into following several structure:
1) when light source substrate 30 is flexible PCB
A. when light source pilot hole 14 is through holes
As shown in Figure 13,14, protective sheet 41, heat conduction glue-line 47, enclosing 46 and marine glue 48 that described guard assembly 40 is made up of rigid form.
The preferred protective sheet 41 of the present invention is made up of the metal of electromagnetism interference or composite hard plastic material.Its shape can be determined according to the shape of light source pilot hole 14 (being now through hole), and the present invention preferably its shape is round sheet, is provided with upwards extends and the catch 42 that can bend in the peripheral intervals of protective sheet 41.
During assembling, the inner bottom surface of protective sheet 41 is coated with and applies heat-conducting glue layer 47, again it is close to from bottom to top the bottom of described light source pilot hole 14, catch 42 on it by the pedestal dish 10 of this light source pilot hole 14 position disk body periphery (namely around this light source pilot hole 14 mesh hole between) stretch upwards, afterwards the described light source substrate 30 be arranged in this light source pilot hole 14, LED 31 and the enclosing 46 be placed on this light source substrate 30 are wrapped.Now, the heat on light source substrate 30 is derived by protective sheet 41.
Described enclosing 46 is the annular ring in tubbiness be made up of the metal of electromagnetism interference or composite hard plastic material, by this annular ring to be placed on light source substrate 30 around the mode of described LED 31, printing opacity marine glue 48 is injected in space again between enclosing 46 and described LED 31, afterwards, the upper edge of described catch 42 is bent inwards on the upper limb being stuck in described enclosing 46, formed thus one solid, have certain degree of hardness and water proof and dust proof is shock-resistant and the combination of electromagnetism interference (hereinafter referred to as pixel hardware).
B. when light source pilot hole 14 is non through hole
As shown in Figure 15,16, described guard assembly 40 is made up of rigid protective sheet 41, heat conduction glue-line 47, enclosing 46 and marine glue 48 form.
This example is except protective sheet 41 structure is different from above-mentioned " 1) a. ", and other is identical.
Protective sheet 41 in this example is only disk, does not establish catch 42 at its periphery.
Described pixel hardware is made up of the protective sheet 41 connected successively, heat conduction glue-line 47, light source substrate 30, LDE lamp, enclosing 46 and transparent watertight glue 48.In protective sheet 41 fixedly embedded light source pilot hole 14 (protective sheet 41 can adopt gluing or injection moulding mosaic mode to be fixed in this light source pilot hole 14), it is made up of the metal of electromagnetism interference or composite hard plastic material.
2) when auxiliary substrate 70 is flexible PCB
A. when auxiliary pilot hole 15 is through holes
As shown in figure 14, described guard assembly 40 forms except protective sheet 41, heat conduction glue-line 47, enclosing 46 and the marine glue 48 be made up of rigid.
The shape of protective sheet 41 can be determined according to the shape of auxiliary pilot hole 15, and the present invention is preferably rectangular patch, is provided with upwards extends and the catch 42 that can bend in the peripheral intervals of protective sheet 41.
During assembling, the inner bottom surface of protective sheet 41 is coated with and applies heat-conducting glue layer 47, again it is close to from bottom to top the bottom of described auxiliary pilot hole 15, catch 42 on it by the pedestal dish 10 of this auxiliary pilot hole 15 position disk body periphery (namely around this auxiliary pilot hole 15 mesh hole between) stretch upwards, afterwards the described auxiliary substrate 70 be arranged in this auxiliary pilot hole 15 and signal power source input and output joint 50 or auxiliary substrate 70 and LED drived control chip and the enclosing 46 be placed on this auxiliary substrate 70 are wrapped.Now, the heat on it is derived by protective sheet 41 by auxiliary substrate 70.
The annular ring in tubbiness of described enclosing 46 for being made up of metal or duroplasts, by this annular ring to be placed on auxiliary substrate 70 around the mode of described signal power source input and output joint 50 or LED drived control chip, printing opacity marine glue 48 is injected in space in space again between enclosing 46 and described power supply input and output joint or between enclosing 46 and LED drived control chip, afterwards, the upper edge of described catch 42 is bent inwards on the upper limb being stuck in described enclosing 46, formation one is solid thus, there is certain degree of hardness and the combination (hereinafter referred to as auxiliary portion hardware) of the shock-resistant and electromagnetism interference of water proof and dust proof.
B. when auxiliary pilot hole 15 is non through hole
As shown in figure 16, described guard assembly 40 is made up of rigid protective sheet 41, heat conduction glue-line 47, enclosing 46 and marine glue 48 form.
This example is except protective sheet 41 structure is different from above-mentioned " 2) a. ", and other is identical.
Protective sheet 41 in this example is only rectangular sheet, does not establish catch 42 at its periphery.
Described auxiliary portion hardware is made up of the protective sheet 41 connected successively, heat conduction glue-line 47, signal power source input and output joint 50 or LED drived control chip, enclosing 46 and transparent watertight glue 48.In protective sheet 41 fixedly embedded auxiliary pilot hole 15 (protective sheet 41 can adopt gluing or injection moulding mosaic mode to be fixed in this auxiliary pilot hole 15), it is made up of the metal of electromagnetism interference or composite hard plastic material.
3) light source substrate 30 is hard pcb board
A. when light source pilot hole 14 is through holes
As shown in Figure 11,12, this example only shape of protective sheet 41 and set-up mode is different from above-mentioned " 1) a. " protective sheet 41, and other structure is all identical.
The shape of the protective sheet 41 in this example is rectangle and bottom surface is closed peviform protective plate 43, periphery around this protective plate 43 is interval with the sidewall 44 upwards extended, passage for described horizontal signal transmssion line or longitudinal signal transmission line can be made to pass between adjacent wall 44, outward extending scene-affinity 45 is provided with at the top of sidewall 44, protective plate 43 embeds in this light source pilot hole 14, light source pilot hole 14 is stretched out bottom it, scene-affinity 45 holding on it is on pedestal dish 10, described light source substrate 30 and the enclosing 46 be placed on light source substrate 30 are placed in protective plate 43, LED light source be arranged at enclosing 46 around light source substrate 30 on, transparent watertight glue 48 is injected between enclosing 46 and described LED light source, form described pixel hardware thus.
Heat conduction glue-line 47 in this example is coated between the inner bottom surface of protective plate 43 and described light source substrate 30.
B. when light source pilot hole 14 is non through hole
As shown in figure 17, also shouldn't protective sheet 41, light source substrate 30 is directly embedded in this light source pilot hole 14, then the pixel hardware described in forming by the method encapsulation of aforementioned " 3) a. ".
4) auxiliary substrate 70 is hard pcb board
A. when auxiliary pilot hole 15 is through holes
As shown in figure 12, this example only shape of protective sheet 41 and set-up mode is different from the protective sheet 41 in above-mentioned " 2) a. ", and other structure is all identical.
The shape of the protective sheet 41 in this example is rectangle and bottom surface is closed peviform protective plate 43, periphery around this protective plate 43 is interval with the sidewall 44 upwards extended, passage for described horizontal signal transmssion line or longitudinal signal transmission line can be made to pass between adjacent wall 44, outward extending scene-affinity 45 is provided with at the top of sidewall 44, in protective plate 43 this auxiliary pilot hole 15 fixedly embedded (protective plate 43 can adopt gluing or injection moulding mosaic mode to be fixed in this auxiliary pilot hole 15), auxiliary pilot hole 15 is stretched out bottom it, scene-affinity 45 holding on it is on pedestal dish 10, described auxiliary substrate 70 and the enclosing 46 be placed on auxiliary substrate 70 are placed in protective plate 43, signal power source input and output joint 50 or LED drived control chip be arranged at enclosing 46 around auxiliary substrate 70 on, transparent watertight glue 48 is injected between enclosing 46 and described signal power source input and output joint 50 or LED drived control chip, form described auxiliary portion hardware thus.
Heat conduction glue-line 47 in this example is coated between the inner bottom surface of protective plate 43 and described auxiliary substrate 70.
B. when auxiliary pilot hole 15 is non through hole
Identical with the structure shown in Figure 17, also shouldn't protective sheet 41 in this example, auxiliary substrate 70 is directly embedded in this auxiliary pilot hole 15, then the auxiliary portion hardware described in forming by the method encapsulation of aforementioned " 4) a. ".
During production, protective sheet 41 in guard assembly 40 of the present invention or protective plate 43 can adopt punch process, efficiency like this is high, cost is low, simultaneously when actual installation, its inside surface is coated with spreads heat conductive silica gel laminating circuit unit flexible PCB, greatly strengthen the thermal diffusivity of LED 31 and chip on circuit, meanwhile, protective sheet 41 or protective plate 43 also effectively can shield outside electromagnetic interference (EMI).
The present invention embeds in the circuit groove 16 of pedestal Pan10Shang Jing Dao11He Wei road 12 correspondence respectively due to described horizontal signal transmssion line and longitudinal signal transmission line 20; afterwards; inject bonding and marine glue 48 doses that is waterproofing protection effect more thereon; after marine glue 48 doses solidifies; the entirety formed should be able to reach the water proofing property of IP68 rank, also can normally be worked even if insert in water.To weld and after gluing together signal power source input and output joint 50 and being connected cable, this LED shows module and namely accused.When reality uses, signal power source input and output joint 50 should select classification of waterproof to reach the device of IP65, to ensure a whole set of large screen system reliability out of doors, weatherability.
LED of the present invention shows module and can be bent and can not damage, and is namely describedly made bending in advance through Dao11He Wei road 12, and can provide certain telescopic variation amount under external force because it is soft plastic; Described pixel hardware is set at these crossover nodes 13 intersected through Dao11He Wei road 12, described auxiliary portion hardware is set in the position of installing signal power source input and output joint 50 and LED Drive and Control Circuit chip 60.Form a kind of except pixel hardware and auxiliary portion hardware can not be effectively protected by external force deformation thus; pedestal dish 10 part of other parts then becomes the software allowing to be produced by External Force Acting bending, convolution, distortion, stretching; be equipped with signal and power supply cable formation LED display module, then several these LED display module just can be formed jumbo LED display curtain by permutation and combination.LED of the present invention show module because of pedestal dish 10 be porous open type, himself very light in weight, again because it can adopt injection molded, thus its thickness also can make very thin.Therefore, install out of doors because its ventilative rate is very high, their mounting condition is just become simple, must not become heavy firm because very large load (deadweight formed by a lot of LED display curtain group and wind load) will be born.Be the occasion of smooth surface at some attachments, as surfaces such as slippery walls, glass curtain wall, billboards, the bottom that can show described pixel hardware in curtain wall and auxiliary portion hardware at above-mentioned LED arranges sticker, just LED can be shown curtain wall and directly be pasted onto on the surface of described attachment; On the framing scaffold of building ground, on the truss of outdoors performance, or even grassland, hillside fields, massif etc. various complex-curved on, all can by the present invention one by one colligation on plastic net, then hang or be laid in above-mentioned occasion.All these simple and easy to do mounting meanss are all have frivolous penetrating and soft and can caused by the feature of appropriateness distortion because LED of the present invention shows curtain wall.
The installation method being shown the LED display curtain wall that module is formed by LED of the present invention is as follows:
About its overall circuit Signal transmissions and power supply distribution technique be mature technology, no longer describe in detail here.
The mounting means that LED of the present invention shows curtain wall main has bonding method and linked network method:
1) bonding method.
This LED can be shown module by sticky end portion, the bottom sticker 80 of the pixel hardware described in showing on module at each LED and auxiliary portion hardware directly paste on some ganoid objects, as slippery walls, glass curtain wall, the surfaces such as billboard, bottom sticker 80 herein can select pressure sensitive adhesive, pressure sensitive adhesive forever can not attach to surface, conveniently cleaning is struck off when removing LED and showing module, also can add when sufficient intensity and weatherability as needed and be coated with other bonding agent to reinforce, this installation method, making the LED be made up of several LED display modules of the present invention show curtain wall is can remove recycling (to paste bottom sticker 80 in the bottom of described pixel hardware and auxiliary portion hardware again after namely removing, just can reuse in other place).
2) linked network method LED is shown module colligation on commercially available multiple plastic net, wire netting, then plastic net, wire netting be hanging to various building, the girder that can bear such as building site framing scaffold or be routed to surface that is various or smooth or that rise and fall.
Emphasis is needed to set forth here: described LED shows the pre-bending that module Zhong Jing Dao11He Wei road 12 all has manufacture! the purpose of this design feature is the installation that installation that the large LED formed because being shown modules by several LED of the present invention shows curtain wall is different from existing LED display curtain module, existing LED display curtain module is all mounted on the steel structure frame that size strictly accurately controls, and the mounting hole site etc. that this LED display curtain module itself has also strictly is mated with steel structure frame, because giant-screen signal system is the accuracy matrix system of digitisation, a large screen system has how many digital pixels, corresponding just arranges how many physical picture element points, the size Pixels point of each LED display curtain module of existing formation giant-screen is the assembling again in modulus after planning well, because of the size restriction at scene, the cutting of LED display module can not be used.
Usually, most of LED display curtain module, usually for some interim occasions, can not carry out accurate mounting points dimension layout to mounting surface and reserve.LED of the present invention show curtain wall then by thereon all there is pre-bending through Dao11He Wei road 12, therefore, during installation, it can show the size of curtain wall according to the restriction of on-the-spot size to LED and carries out some compressions among a small circle or stretching, the described horizontal signal transmssion line that this pre-bending one there is provided some deflections and can not damage wherein and longitudinal signal transmission line 20; Two is the bonding of sticker 80 bottom can not peeling off because of deformational stress; Three is when repeating after dismounting again, and itself can return to intrinsic size instead of permanent strain again.But this structure can cause the mould of manufacture pedestal dish 10 compared with complex and expensive and increase the assembling difficulty of whole LED display curtain wall, so when some does not need to carry out size adjustment, LED of the present invention shows module Zhong Jing Dao11He Wei road 12 can not manufacture pre-bending structure.
Claims (10)
1. LED shows a module, comprises LED (31), driving circuits, it is characterized in that: its pedestal dish (10) in checkerboard grid shape be made up of soft plastic and the LED light control circuit plate be assemblied on this pedestal dish (10) are formed, wherein,
Pedestal dish (10) is made up of some Gen Jing roads (11) and latitude road (12) intersection, penetrating mesh is formed with latitude road (12) enclosed space through road (11), light source pilot hole (14) is being provided with, the described circuit groove (16) taken the shape of the letter U for cross section through road (11) and latitude road (12) through road (11) and crossover node (13) place in latitude road (12);
LED light control circuit plate intersects by some horizontal signal transmssion lines and longitudinal signal transmission line (20) the matrix form circuit network formed, arrange at alternate nodes (21) place of horizontal signal transmssion line and longitudinal signal transmission line the LED (31) be arranged on light source substrate (30), described light source substrate (30) is connected with described lateral transport line or longitudinal signal transmission line;
Described horizontal signal transmssion line and longitudinal signal transmission line are fixedly laid in described circuit groove (16), in light source pilot hole (14) described in described light source substrate (30) embeds, be also provided with in light source pilot hole (14) and there is the shock-resistant and electromagnetism interference of water proof and dust proof and can from the bottom to top by guard assembly (40) that the described light source substrate (30) be placed in one not exclusively wraps with bottom and the sidepiece of LED (31) assembly;
Described horizontal signal transmssion line and longitudinal signal transmission line (20) are flexible PCB or RV flexible cord.
2. LED according to claim 1 shows module, it is characterized in that: described light source substrate (30), horizontal signal transmssion line and longitudinal signal transmission line (20) are flexible PCB, the circle that described guard assembly (40) is made up of rigid or rectangular patch protective sheet (41), heat conduction glue-line (47), enclosing (46) and marine glue (48) form, be provided with in the peripheral intervals of protective sheet (41) and upwards extend and the catch (42) that can bend, wherein
Protective sheet (41) is placed in the position of crossover node (13) described in pedestal dish (10) bottom surface, and the catch (42) on it is stretched upwards by the periphery of this crossover node (13) and described light source pilot hole (14), light source substrate (30) and the enclosing (46) be placed on light source substrate (30) wrapped;
Heat conduction glue-line (47) to be coated between the inner bottom surface of protective sheet (41) and described light source substrate (30) and to be derived by this protective sheet (41) by the heat on light source substrate (30);
LED light source be arranged at enclosing (46) around light source substrate (30) on;
Marine glue (48) injects in the space between described enclosing (46) and described LED light source;
The upper edge of described catch (42) bends inwards holding on the upper limb of described enclosing (46).
3. LED according to claim 1 shows module, it is characterized in that: described light source substrate (30) is hard plate, rounded or the rectangle of the cross sectional shape be made up of rigid of described guard assembly (40) and bottom surface is closed peviform protective plate (43), heat conduction glue-line (47), enclosing (46) and marine glue (48) composition, peripheral intervals around described protective plate (43) is provided with the sidewall (44) upwards extended, passage for described horizontal signal transmssion line or longitudinal signal transmission line can be made to pass between adjacent wall (44), outward extending scene-affinity (45) is provided with at the top of sidewall (44), wherein,
Protective plate (43) embeds in this light source pilot hole (14), stretches out light source pilot hole (14) bottom it, and scene-affinity (45) holding on it is also bonding or be injection-moulded on pedestal dish (10);
Described light source substrate (30) and the enclosing (46) be placed on light source substrate (30) are placed in protective plate (43), LED light source be arranged at enclosing (46) around light source substrate (30) on;
Marine glue (48) injects in the space between described enclosing (46) and described LED light source.
4. the LED according to any one of claim 1-3 shows module, it is characterized in that: described shape linearly shape or Curved through road (11) and latitude road (12) in described pedestal dish (10) plane.
5. LED according to claim 4 shows module, it is characterized in that: described be pre-bending through road (11) and latitude road (12) on the direction of vertical described pedestal dish (10) card.
6. LED according to claim 1 shows module, it is characterized in that: on the horizontal signal transmssion line be layed in described metallic channel and longitudinal signal transmission line, inject marine glue (48) layer.
7. LED according to Claims 2 or 3 shows module, it is characterized in that: described protective sheet (41), protective plate (43) by metal or duroplasts made.
8. LED according to claim 1 shows module, it is characterized in that: on pedestal dish (10), be also respectively equipped with the auxiliary pilot hole (15) that can embed signal power source input and output joint (50) and LED Drive and Control Circuit chip (60), described signal power source input and output joint (50) or LED Drive and Control Circuit chip (60) are arranged on and are arranged on the auxiliary substrate (70) at this auxiliary pilot hole (15) place, being provided with in this auxiliary pilot hole (15) can from the bottom to top by described guard assembly (40) that the signal power source input and output joint (50) be placed in one or LED Drive and Control Circuit chip (60) not exclusively wrap.
9. a LED shows flexible pedestal dish (10) used in module, it is characterized in that: this pedestal dish (10) is made up of soft plastic, whole pedestal dish (10) is made up of some Gen Jing roads (11) and latitude road (12) intersection, penetrating mesh is formed with latitude road (12) enclosed space through road (11), can embed through road (11) and latitude road (12) crossover node (13) place the light source pilot hole (14) arranging LED luminescence component, described is can lay signal transmssion line and the circuit groove (16) that takes the shape of the letter U of cross section through road (11) and latitude road (12).
10. a LED shows LED light control circuit plate used in module, comprise LED (31), Drive and Control Circuit, it is characterized in that: it forms matrix form by some horizontal signal transmssion lines and longitudinal signal transmission line (20) intersection, described LED (31) is mounted on the light source substrate (30) at horizontal signal transmssion line and longitudinal signal transmission line crossover node (13) place, described horizontal signal transmssion line and longitudinal signal transmission line are that RV is connected flexible cord or flexible PCB, and described light source substrate (30) is flexible PCB or Rigid Flex.
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Effective date of registration: 20180510 Address after: 518129 4 building, 8 Industrial Park, Longgang Road, Longgang Road, Bantian, Guangdong. Applicant after: Shenzhen City Yi hung Photoelectric Technology Co. Ltd. Address before: 518129 4 building, 8 Industrial Park, Bantian, Longgang, Shenzhen, Guangdong Applicant before: Zhu Yao |
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