CN205140490U - Led display screen module - Google Patents
Led display screen module Download PDFInfo
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- CN205140490U CN205140490U CN201520922122.6U CN201520922122U CN205140490U CN 205140490 U CN205140490 U CN 205140490U CN 201520922122 U CN201520922122 U CN 201520922122U CN 205140490 U CN205140490 U CN 205140490U
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- led display
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Abstract
The utility model discloses a LED display screen module, include fixed connection's face guard in proper order, PCB board and drain pan, be equipped with LED drive circuit and LED array unit on the PCB board, LED drive circuit is including the data input interface and the data input signal amplification circuit that concatenate, data input interface carries data to data input signal amplification circuit, data after data input signal amplification circuit will enlarge are respectively carried to the decoding protection, scanning decoding circuit and LED drive unit, LED drive unit is including a plurality of driver chip that concatenate in proper order, driver chip all sends drive signal to LED array unit, LED drive unit sends output signal to data output interface, scanning decoding circuit is connected with capable drive circuit, and the drive circuit that goes is connected with LED array unit. The utility model discloses a constant current drive chip and current control circuit, the drive current of LED paster is effectively controlled, and is more energy -conserving than the like product, adopts the decoding protection, and to the signal protection that receives the interference easily, stability is higher.
Description
Technical field
The utility model relates to LED technology field, refer to especially a kind of can at LED display module that is outdoor and indoor use.
Background technology
Along with the fast development of science and technology, technology and the industry of LED display all achieve significant progress.Because it has, brightness is high, operating voltage is low, power consumption is few, maximize, the life-span is long, shock-resistant, steady performance, and is widely used in the fields such as traffic, civil aviaton, finance, education, medical treatment, bank, security, communication, media advertising.LED display is that the LED pixel unit module that LED is formed is arranged in matrix according to actual needs size is assembled, a kind of display screen formed with special display driver circuit, D.C. regulated power supply, software, framework and external decoration.
LED display is divided into indoor, outdoor and semi-outdoor by environment for use, and dividing by color has monochrome, dual base color and three primary colours (full-color, very color) three kinds.Existing LED display module is generally made up of housing, the LED drive circuit plate be located on housing, the LED unit welded or be mounted on LED drive circuit plate.But existing LED display module stability is not enough, and consumed energy is large.
Utility model content
The utility model proposes a kind of LED display module, solve existing LED display module poor stability and the large problem of consumed energy.
The technical solution of the utility model is achieved in that
A kind of LED display module, comprise the face shield be fixedly connected sequentially, pcb board and drain pan, pcb board is provided with LED drive circuit and LED array unit, LED drive circuit comprises Data Input Interface and the data input signal amplifying circuit of serial connection, data are delivered to data input signal amplifying circuit by Data Input Interface, data after amplification are delivered to decoding protection by data input signal amplifying circuit respectively, scanning decoding scheme and LED drive unit, LED drive unit comprises the multiple driving chip be connected in series successively, driving chip all sends drive singal to LED array unit, LED drive unit sends and outputs signal to data output interface, scanning decoding scheme is connected with horizontal drive circuit, and horizontal drive circuit is connected with LED array unit.
Further, driving chip is connected with for controlling the current control circuit that electric current is continuous current, and the quantity of current control circuit is identical with the quantity of driving chip.
Further, LED array unit comprises the LED paster in array format, is spaced apart 4.75mm between LED paster.Further, the color of LED paster is monochromatic or double-colored.Face shield adopts printing opacity plastic material to make, and the surface of face shield is provided with the printing opacity grid in array format corresponding with the position of LED paster.Face shield surface is square or rectangle, and its four limit is provided with frame, and frame is provided with the reference column fixing with pcb board or mounting hole.
Further, Data Input Interface and data output interface all adopt 16 needle connectors.
Further, pcb board adopts reflow soldering process to make, and pcb board top layer is provided with green oil oxygen barrier layer and three anti-paints.
Further, drain pan is provided with the groove for placing power supply, and shape and the size of the shape of drain pan and size and pcb board and face shield are corresponding.
The beneficial effects of the utility model are: adopt constant-current driven chip and current control circuit, the drive current of LED paster is effectively controlled, more energy-conservation than like product; simultaneously; employing decoding is protected, and protects, make its stability higher to the signal be easily disturbed in circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the theory diagram of the utility model LED display module.
In figure, 1-Data Input Interface; 2-data input signal amplifying circuit; 3-LED driver element; 4-data output interface; 5-decoding is protected; 6-scans decoding scheme; 7-horizontal drive circuit; 8-LED array element.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model proposes a kind of LED display module, the utility model can be expanded, and by some LED display module group assemblings together, can form the LED display panel of arbitrary area.
This LED display module comprises the face shield, pcb board and the drain pan that are fixedly connected sequentially, pcb board is provided with LED drive circuit and LED array unit 8, LED drive circuit is used for LED array unit 8 feed drive electric current, and LED array unit 8 can be lighted by drive current.LED drive circuit comprises Data Input Interface 1 and the data input signal amplifying circuit 2 of serial connection, the data that Data Input Interface 1 is come in for receiving external transmission, data are delivered to data input signal amplifying circuit 2 by Data Input Interface 1, data after amplification are delivered to decoding protection 5 by data input signal amplifying circuit 2 respectively, scanning decoding scheme 6 and LED drive unit 3, LED drive unit 3 comprises the multiple driving chip be connected in series successively, driving chip all sends drive singal to LED array unit 8, LED drive unit 3 sends and outputs signal to data output interface 4, scanning decoding scheme 6 is connected with horizontal drive circuit 7, and horizontal drive circuit 7 is connected with LED array unit 8.Decoding protection 5 and scanning decoding scheme 6 can process the signal be easily disturbed in data and circuit, make the stability of LED drive circuit higher.
Driving chip is connected with for controlling the current control circuit that electric current is continuous current, and the quantity of current control circuit is identical with the quantity of driving chip.Each driving chip is connected with current control circuit, the electric current of the LED array unit 8 that each driving chip is connected is constant, driving chip is constant-current driven chip, neither affect the brightness of LED array unit 8, and the drive current of LED array unit 8 can be effectively controlled, make the longer service life of LED display module.
LED array unit 8 comprises the LED paster in array format, and the number of the row and column of LED paster is respectively M and N, M and N is the integer being more than or equal to 1, is spaced apart 4.75mm between LED paster.The interval of LED paster is set with the making helping face shield.The color of LED paster is monochromatic or double-colored.Concrete, can set according to the demand of user.Face shield adopts printing opacity plastic material to make, and the surface of face shield is provided with the printing opacity grid in array format corresponding with the position of LED paster, and the number of printing opacity grid is M*N, and face shield can protect LED paster not destroyed by wind and rain.Face shield surface is square or rectangle, and its four limit is provided with frame, and frame is provided with the reference column fixing with pcb board or mounting hole.The height of the aspect ratio LED paster of frame is high, prevents LED paster from wearing and tearing.In the present embodiment, LED paster adopts 3528 SMD lamp pearls, and its luminosity is higher, and display effect is better, and single LEDs paster can arbitrarily be changed, and safeguard more flexible, maintenance cost is lower.
The color of LED paster can adopt monochromatic or double-colored, and the situations such as indoor and semi-outdoor that can be applicable to use.
Data Input Interface 1 and data output interface 4 all adopt 16 needle connectors.
Pcb board adopts reflow soldering process to make, and pcb board top layer is provided with green oil oxygen barrier layer and three anti-paints.
Drain pan is provided with the groove for placing power supply, and shape and the size of the shape of drain pan and size and pcb board and face shield are corresponding.Drain pan outside is provided with nested parts, and make the assembling of multiple LED display module convenient, error is little.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a LED display module, comprise the face shield be fixedly connected sequentially, pcb board and drain pan, described pcb board is provided with LED drive circuit and LED array unit, it is characterized in that: described LED drive circuit comprises Data Input Interface and the data input signal amplifying circuit of serial connection, data are delivered to described data input signal amplifying circuit by described Data Input Interface, data after amplification are delivered to decoding protection by described data input signal amplifying circuit respectively, scanning decoding scheme and LED drive unit, described LED drive unit comprises the multiple driving chip be connected in series successively, described driving chip all sends drive singal to described LED array unit, described LED drive unit sends and outputs signal to data output interface, described scanning decoding scheme is connected with horizontal drive circuit, and described horizontal drive circuit is connected with described LED array unit.
2. LED display module according to claim 1, is characterized in that: described driving chip is connected with for controlling the current control circuit that electric current is continuous current, and the quantity of described current control circuit is identical with the quantity of described driving chip.
3. LED display module according to claim 1, is characterized in that: described LED array unit comprises the LED paster in array format, is spaced apart 4.75mm between described LED paster.
4. LED display module according to claim 3, is characterized in that: the color of described LED paster is for monochromatic or double-colored.
5. LED display module according to claim 3, is characterized in that: described face shield adopts printing opacity plastic material to make, and the surface of described face shield is provided with the printing opacity grid in array format corresponding with the position of described LED paster.
6. LED display module according to claim 5, is characterized in that: described face shield surface is square or rectangle, and its four limit is provided with frame, and described frame is provided with the reference column fixing with pcb board or mounting hole.
7. LED display module according to claim 1, is characterized in that: described Data Input Interface and described data output interface all adopt 16 needle connectors.
8. LED display module according to claim 1, is characterized in that: described pcb board adopts reflow soldering process to make, and described pcb board top layer is provided with green oil oxygen barrier layer and three anti-paints.
9. LED display module according to claim 1, is characterized in that: described drain pan is provided with the groove for placing power supply, and shape and the size of the shape of described drain pan and size and described pcb board and face shield are corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922122.6U CN205140490U (en) | 2015-11-18 | 2015-11-18 | Led display screen module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922122.6U CN205140490U (en) | 2015-11-18 | 2015-11-18 | Led display screen module |
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| Publication Number | Publication Date |
|---|---|
| CN205140490U true CN205140490U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520922122.6U Active CN205140490U (en) | 2015-11-18 | 2015-11-18 | Led display screen module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845072A (en) * | 2016-05-30 | 2016-08-10 | 无锡昊瑜节能环保设备有限公司 | Energy-saving LED (light emitting diode) panel |
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2015
- 2015-11-18 CN CN201520922122.6U patent/CN205140490U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845072A (en) * | 2016-05-30 | 2016-08-10 | 无锡昊瑜节能环保设备有限公司 | Energy-saving LED (light emitting diode) panel |
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