Grid type LED display and module thereof
The utility model relates to the LED display technique, relates in particular to a kind of grid type LED display and module thereof.
LED display (LED display): be electronic display again or the word screen that wafts.Be made up of the LED dot matrix, the light on and off that logical led electronic display is crossed redness or green light pearl come display text, picture, animation, video, and content can be changed at any time, and the each several part assembly all is the display device of modular construction.Usually form by display module, control system and power-supply system.The dot matrix that display module is made up of the LED lamp constitutes, and is responsible for luminous demonstration; Control system can let contents such as screen displaying character, picture, video through the light on and off of control respective regions, and it mainly is playing animation that perseverance is waved card; Power-supply system is responsible for transferring input voltage and input current to display screen required voltage electric current.
LED display can show numeral, literal, the graph image of variation; Not only can be used for indoor environment and can also be used for outdoor environment, have projector, video wall, the incomparable advantage of LCDs.
Why LED receives extensive attention and is developed rapidly, is that the advantage that had with itself is inseparable.These advantages are summarized: brightness is high, WV is low, power consumption is little, miniaturization, the life-span is long, shock-resistant and stable performance.The development prospect of LED is very wide, and at present just towards high brightness more, more high weather resistance, higher luminous density, higher uniformity of luminance, reliability, panchromaticization direction develop.
LED grid screen be release news, the topmost a kind of giant display of exploitation, both can be used on indoor also can be used on outdoor.LED grid screen in the market adopts the aluminium of strip that the LED lamp is installed, and adds frame after being arranged in juxtaposition and forms display screen, and such structure fabrication inconvenience is difficult to industrialized mass production, and the display screen cabling is complicated, and layout is unreasonable.In addition, such structure is because of the influence of self weight and windage etc., also exists display screen to be prone to torsional deformation and influences defectives such as display effect and life of product.
Summary of the invention
The utility model is the unsuitable industrialized mass of grid type LED display that overcomes prior art, the defective that is prone to torsional deformation; Provide a kind of simple in structure, make things convenient for batch making, permeability is good and on-deformable LED display module in light weight; It comprises drain pan, face shield and lamp plate and is installed in the LED lamp on the lamp plate that said LED lamp is installed on the said lamp plate and exposes to the outside surface of said face shield; Said drain pan comprises head and body, and said head is provided with power lead and signal wire interface, and said body has a plurality of long and narrow through holes, and integral body is grid type; Be respectively equipped with the through hole of each long and narrow through hole of corresponding said drain pan on said drain pan and the lamp plate; Said body is provided with floor in its opposing side in said face shield, and corresponding each the grid position of said floor is provided with.
According to embodiment, below the present invention also can adopt preferred embodiment:
Be provided with the wire casing of power lead and signal wire in the said body, said wire casing extends to an other end from the end of said body near head; Each grid inside of said body is groove, and said groove communicates with said wire casing.
Said wire casing has two, is arranged in parallel, and the spacing between said two wire casings is the twice of the spacing between the nearer side of said wire casing and drain pan.
The height of said each floor reduces to an other end from the end near said head gradually.
The middle part, top of said each floor is provided with recess, and the recess on each grid reduces to an other end from the end near said head gradually.
Said drain pan is one-body molded parts, is square.
Between said drain pan and the face shield with being tightly connected.
The present invention also provides a kind of grid type LED display, comprises more than two as aforementioned arbitrary described LED display module and module case; One group in twos of said LED display module, head is set up in parallel relatively; Said module lid is located at the head of said each LED display module.
Preferably, the thickness of said module case is suitable with height near the floor of said head, fixes, is tightly connected between said module case and the said head.
Further preferred, also comprise two L type guard strips that are separately positioned on the free end of LED display module.
The invention has the beneficial effects as follows:
Through on body, offering long and narrow through hole, make body integral body be grid type, can effectively reduce windage and product weight, thereby as billboard or performance display screen the time, be easier to fix and have better steadiness; Simultaneously, also increase permeability greatly,, make indoor daylighting the reducing of limit that have the greatest impact when being installed in office building or resident family as billboard outside window the time.
One side of face shield is provided with floor, can play booster action, makes that this product in use need not frame is set in addition, has practiced thrift material and has alleviated weight.In addition, floor is located at the position of corresponding grid, because of floor than narrow many of grid, so can extra increase windage, can not influence permeability yet.
Through wire casing is set in body, and extend to an other end, and wire casing communicates with groove in the grid, can make the power lead of each LED lamp and the inside that signal wire is positioned at grid, thereby can be arranged longer serviceable life from the end of said body near head; In addition, said wire casing also can play the effect of strengthening body.
Spacing between two wire casings is the twice of the spacing between the nearer side of said wire casing and drain pan; Such set-up mode can make the cable run distance of each LED lamp even relatively, and the LED lamp that makes things convenient for cabling and can avoid indivedual cablings to grow breaks down earlier and influences the entire module situation generation in serviceable life.
The height of said each floor reduces to an other end from the end near said head gradually, and this design both can be satisfied requirement of strength, had practiced thrift material again.
The middle part, top of floor is provided with recess, and the power lead and the signal wire that connect module are drawn smoothly, can not increase the space requirement when installing again, and thickness promptly is installed can not increased.In addition, the recess on each grid reduces to an other end from the end near said head gradually, and this design can guarantee that whole body does not have " bottleneck " of intensity aspect in use.
Drain pan is one-body molded parts, is square, and this shape and structure makes things convenient for industrialization, the large batch of manufacturing.
Use glue sealing between drain pan and the face shield, can make the LED display module have water-proof function, convenient outdoor use.
The metal cover board lid is located at the head of said each LED display module and is connected with each LED display module, can hide power lead and signal wire interface, avoids foreign matter entering such as dust.
The height of the thickness of metal cover board and said floor near said head is suitable, makes the LED display module neat and attractive in appearance; Fix, be tightly connected between said metal cover board and the said head, can further play waterproof action.
Description of drawings
Fig. 1 is the decomposing schematic representation of the LED display module of embodiment 1;
Fig. 2 is the stereographic map of the LED display module of embodiment 1;
Fig. 3 is the front view of base plate of the LED display module of embodiment 1;
Fig. 4 is the left view of base plate of the LED display module of embodiment 1;
Fig. 5 is the decomposing schematic representation of the grid type LED display of embodiment 2;
Fig. 6 is the grid type LED display stereographic map of embodiment 2.
Below in conjunction with embodiment and contrast accompanying drawing the utility model is done further detailed explanation.
Like Fig. 1, shown in 2; This LED display module 1 comprises drain pan 11, face shield 13 and lamp plate 12 and is installed in the LED lamp on the lamp plate 12; Said LED lamp exposes the outside surface with said face shield 13, said drain pan 11 whole squarelys, one-body molded obtaining; Such as one-body molded modes such as casting, plastic uptake or blowings, so that process and obtain better structural strength.Drain pan 11 comprises head 111 and body 112, and like Fig. 2, shown in 3, said head is provided with electric source line interface 1112 and signal wire interface 1111, and said body 112 has a plurality of long and narrow through holes 1123, and integral body is grid type.Said body 112 is provided with floor 1121 in its opposing side in said face shield 13, and said floor 1121 corresponding each grid position are provided with, and play the effect of reinforcement.The height of each floor 1121 reduces to an other end from the end near said head 111 gradually; The middle part, top is provided with the recess 1122 (as shown in Figure 4) that makes things convenient for cabling, and the recess 1122 on each grid reduces to an other end from the end near said head 111 gradually.Be provided with two wire casings of power lead and signal wire in the said body 112, be arranged in parallel, each wire casing extends to an other end from the end of said body near head, stops in an other end or before reaching the end; Spacing between said two wire casings is the twice of the spacing between said wire casing and the drain pan 11 nearer sides, and this spacing set-up mode can make the more all even convenience of cabling, avoids product problems such as in use local line is more early aging.The setting of wire casing is convenient to power lead and signal wire are hidden in wherein, has both protected power lead and signal wire, makes entire product clean and tidy, attractive in appearance again.
Accordingly, said lamp plate 12 and face shield 13 make the three fit together the back and form through hole corresponding to the onesize through hole of the 1123 position relative set of the through hole on the drain pan 11, be beneficial to ventilate and daylighting.
Seal through waterproof materials such as glue or resins between said drain pan 11 and the face shield 13.
More than be that LED display module of the present invention is not limited to above explanation to the specifying an of preferred embodiment.Such as, drain pan 11 also rhombus, circle or even irregularly shaped etc.Under the less or bigger situation of module size, also one or more wire casings can be set, be as the criterion can obtain rational cabling effect.The said shapes such as recess 1122 on the floor 1121 is also square, semicircle that are opened in all can realize same technique effect.
Like Fig. 5, shown in 6; This embodiment is an example with P25 grid type LED display; It comprises that 1,1 module case 2 of 8 LED display modules and 2,8 LED display modules 1 of 2 two L type guard strips are divided into 4 groups, line up two row from top to bottom; Per two LED display module heads 111 are set up in parallel relatively; The thickness of module case 2 is suitable with height near the floor 1121 of said head 111, and lid is located at the head 111 of said each LED display module 1, fixes, is tightly connected between module case 2 and the said head 111.Said module case 2 had both played the effect that covers head 111, avoids power lead and signal wire interface to expose, and also can play the effect of strengthening the entire product structural strength.Two L type guard strips 2 are separately positioned on two sides of P25LED display screen, and promptly each LED shows the free end of module.The free end of each LED display module 1 is fixedly connected with L type guard strip 2 respectively, makes entire display screen become a reliable and stable integral body, thereby can save the housing of common LED display screen.
Above content is the further explain that combines concrete preferred embodiment that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.