CN203325413U - Full-color LED display screen control system - Google Patents

Abstract

The utility model relates to a full-color LED display screen control system which includes an LED controller 10, an external control system 20, a display lamp board 1, a display lamp panel, and a mask. The LED controller 10 is connected with the external control system 20; each LED display module comprises a full-color LED lamp group; in each of the LED display module, a drive chip and a decoding chip are connected between a signal input interface and the full-color LED lamp group; the display lamp panel is also provided with a plurality of switch MOS tube chips, a plurality of constant current chips, and a data interface chip which comprises a signal amplifier and a decoder; and the data interface chip and the switch MOS tube chips are connected. By adopting the above technical scheme, the full-color LED display screen control system designs the LED controller to facilitate editing and controlling the LED display program, and the quite high market value is realized.

Description

A kind of LED full-color display screen control system

Technical field

The utility model relates to a kind of LED full color display, what be specifically related to is a kind of LED full-color display screen control system, be mainly used in solving current full-color LED display screen and adopt display board and drive plate separate design, existing cost is high, poor stability, problem that product is thick.

Background technology

The full-color outdoor unit plate of dot spacing less (10mm) in the market, because the arranging density of LED lamp is larger, and the cloth board space of leaving driving circuit for is very little, therefore need to adopt the structure that shows that lamp plate separates with drive plate, drive plate is carried out to circuit by socket with the demonstration lamp plate and be connected.Although this isolating construction is fairly simple when Design PCB, but when being used, reality conducts electricity because socket adopts Mechanical Contact, out of doors in environment, usually there will be loose contact and the problem that causes cell board to work, thereby affect the normal use of whole display screen; And owing in demonstration lamp plate back, having born a drive plate, will inevitably increase the manufacturing cost of PCB and the weight of cell board, also increase the thickness of cell board, thereby had influence on thickness and the weight of whole demonstration casing, increased the difficulty of transportation installation cost and mounting structure.

The utility model content

In order to address the above problem, the utility model provides a kind of LED full-color display screen control system.

A kind of LED full-color display screen control system, comprise LED controller 10, external control system 20, show lamp plate 1, LED controller 10 is connected with external control system 20, show lamp plate 1 and be fixedly mounted on the face shield 2 shown on lamp plate 1, show on lamp plate 1 that being provided with a plurality of DIP packaged LEDs shows module 101, each described LED shows that module 101 comprises full-color LED lamp group 11, drive chip MBI5024, coding chip MBI5024, signal input interface 14, signal output interface 15 and power interface 16, in each described LED shows module 101, drive chip 12 and coding chip 13 all to be connected between signal input interface and full-color LED lamp group, it is characterized in that: described LED controller 10 arranges coding module, load module, processing module, display module and output module, described display module is connected with described coding module, and described output module is connected with external control system, also be provided with a plurality of switch MOS dies 103, a plurality of constant current chip 104 and a data interface chip formed by signal amplifier and code translator 102 on described demonstration lamp plate 1, described data interface chip 102 is connected with switch MOS die 103, described switch MOS die 103 shows that with the DIP packaged LED positive pole of module 101 is connected, and for controlling, the DIP packaged LED is shown to module 101 power supplies, described constant current chip 104 shows that with the DIP packaged LED negative pole of module 101 is connected, and shows the working current of module 101 for regulating and controlling DIP packaged LED.Described signal input interface 14 is connected with external control system 20.

Adopt such scheme, the utility model, by the design LED controller, is convenient to editor, is controlled, in response to different LED illumination schemes and LED displaying scheme, design and the application of rapid adjustment LED display controller, be widely used in LED and show control field, has very high market using value.

The utility model is by being arranged on the data interface chip shown on lamp plate, by the corresponding input of the drive control signal of input, and amplified input control signal, controlling metal-oxide-semiconductor is the power supply of DIP packaged LED lamp, thereby make the work of LED lamp, realized showing the drives of lamp plate.Compared with prior art, the utility model hardens driving circuit and display lamp to be integrated, and has solved current full-color LED display screen and has adopted display board and drive plate separate design, has that cost is high, a poor stability, problem that product is thick.

The accompanying drawing explanation

Fig. 1: the utility model cascade schematic diagram;

Fig. 2: structural representation of the present utility model;

Fig. 3: LED controller structural drawing of the present utility model;

Fig. 4: demonstration lamp plate schematic appearance of the present utility model.

1-shows lamp plate, 2-lampshade, 10-LED controller, 11-full-color LED lamp group, 12-drives chip, 13-coding chip, the 14-signal input interface, 15-signal output interface, 16-power interface, the 20-external control system, 30-external switch power supply, 101-LED shows module, the 102-data interface chip, 103-switch MOS die, 104-constant current chip, the 105-signal input port, 106-signal output port, 201-lamp hole.

Embodiment

The embodiment below set forth represents and allows those skilled in the art to put into practice necessary information of the present utility model, and illustrates and put into practice best mode of the present utility model.Once read with reference to the accompanying drawings following description, those skilled in the art just will understand design of the present utility model and will recognize the application of these designs of not illustrating especially herein.Should be appreciated that these designs and application fall into the scope of disclosure and the accompanying claims book.

As shown in Figure 1-2, a kind of LED full-color display screen control system of the present embodiment comprises that a plurality of LED show module 101, a plurality of LED show that module 101 is connected successively with cascade system, wherein first LED shows that module 101 is connected to receive the control signal of external control system 20 with external control system 20, and described external control system 20 can be computing machine.LED shows what module 101 was connected with external control system 20.Each LED shows that module 101 includes full-color LED lamp group 11, drives chip MBI5024, coding chip 74HC138, signal input interface 14, signal output interface 15 and power interface 16, wherein drive the model of chip 12 to select MBI5024, and the model of coding chip 13 is selected 74HC138.At each LED, show in module 101, drive chip 12 and coding chip 13 all to be connected between signal input interface 14 and full-color LED lamp group 11, power interface 16 is connected to external switch power supply 30, thereby shows module 101 power supplies by this Switching Power Supply 30 for LED.Show module 101 for this LED, its signal input interface 14 is connected with external control system 20, and its signal output interface 15 shows that with next LED the signal input interface of module 101 is connected.This LED show the received signal from external control system 20 of signal input interface 14 of module 101 include clock signal clk, latch signal LAT, enable signal OE, full-color signal W and row signal A B C D, these signals all flow to next LED by signal output interface 15 and show module 101.Wherein, clock signal clk, latch signal LAT, enable signal OE, full-color signal W flow to and drive chip 12, to change the size of current that drives chip 12 to export to full-color LED lamp group 11, thereby control the gray scale of LED lamp; And row signal A B C D flow to coding chip 13, the dynamic scan that makes coding chip 13 realize every row LED.

Show on lamp plate 1 that being provided with a plurality of DIP packaged LEDs shows module 101, and each DIP packaged LED shows that module 101 is comprised of red, blue, green three LED; Be provided with on face shield 2 with the DIP packaged LED and show the lamp hole 201 that module 101 quantity are identical, position is corresponding, the DIP packaged LED shows that module 101 correspondences are arranged in lamp hole 201.

On showing lamp plate 1, the DIP packaged LED shows in the gap between module 101 and is provided with a signal input port 105, signal output port 106, data interface chip 102, a plurality of switch MOS die 103 and an a plurality of constant current chip 104; Wherein the quantity of switch MOS die 103, constant current chip 104 and DIP packaged LED show the quantity Corresponding matching of module 101; Signal input port 105 is connected with data interface chip 102, for inputting drive control signal; Data interface chip 102 is connected with signal output port 106, by signal output port 106, can be connected to the next lamp plate that shows.

Wherein data interface chip 102 is actual is 4538 chips, by 45 signal amplifiers and 38 code translators, formed, signal input port 105 is connected with data interface chip 102, be used for input signal to data interface chip 102, by 45 signal amplifiers in data interface chip 102, signal is amplified, then 38 code translators are exported to switch MOS die 103 by the signal minute multichannel after amplifying, this switch MOS die 103 is the 4953MOS pipe, its correspondence is connected to the positive pole that the DIP packaged LED shows module 101, for the DIP packaged LED being shown to module 101 power supplies, the DIP packaged LED shows that the negative pole of module 101 is connected to constant current chip 104, and this constant current chip 104 is connected with data interface chip 102, according to the corresponding regulating and controlling of signal of data interface chip 102 inputs, shows the electric current of module 101 by the DIP packaged LED.

At first power supply is inputted LED whole-color display unit plate, show that lamp plate 1 is in holding state, when the drive control signal input is arranged, by 45 signal amplifiers in data interface chip 102, signal is amplified, and corresponding by switch MOS die 103, for the DIP packaged LED, show module 101 power supplies, and by the corresponding working current of regulating DIP packaged LEDs demonstration modules 101 of constant current chip 104.

As shown in Figure 3; The load module of described LED controller 10 is for receiving the input signal that includes described LED cell board title; Have LED cell board title in input signal, like this, the supvr, when editor's broadcast information, can directly specify a certain LED cell board, concerning the supvr, very convenient and directly perceived; Generate input signal after editor, be transferred to described load module.Preferably, described load module is wireless receiving module, and wireless remote receives the input signal that includes described LED cell board title; Perhaps, described load module arranges USB port, adopts the USB transmission mode to receive the input signal that includes described LED cell board title.

Described processing module is connected with described coding module, described load module respectively, for receiving and analyze described input signal, generate the initial data that show, read described corresponding table, the information of described LED cell board position is joined to described initial demonstration data, obtain revising the demonstration data, send to connected described LED cell board.Preferably, described display module also is connected with described load module, described processing module respectively, for showing the control operation of described control device.An example is that described processing module arranges receiving element, analytic unit, synthesis unit and output unit; Described receiving element is connected with described load module, receives described input signal; Described analytic unit is connected with described receiving element, analyzes described input signal, generates the initial data that show; Described synthesis unit is connected with described analytic unit, described coding module respectively, reads described corresponding table, and the information of described LED cell board position is joined to described initial demonstration data, obtains revising the demonstration data; Described output unit is connected with described synthesis unit, and described modification is shown to data send to the described LED cell board be connected with described LED control panel.

The utility model by arranging data interface chip on the demonstration lamp plate, by the corresponding input of the drive control signal of input, control the work of DIP packaged LED lamp, realized showing the drives of lamp plate, driving circuit and display lamp are hardened to be integrated, solved current full-color LED display screen and adopted display board and drive plate separate design, had that cost is high, a poor stability, problem that product is thick.

Obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation that spirit of the present utility model extended out or change still among protection domain of the present utility model.

Claims (1)

1. a LED full-color display screen control system, comprise LED controller (10), external control system (20), show lamp plate (1), LED controller (10) is connected with external control system (20), show lamp plate (1) and be fixedly mounted on the face shield (2) shown on lamp plate (1), show on lamp plate (1) that being provided with a plurality of DIP packaged LEDs shows module (101), each described LED shows that module (101) comprises full-color LED lamp group (11), drive chip MBI5024 (12), coding chip 74HC138 (13), signal input interface (14), signal output connects (15) mouth and power interface (16), in each described LED shows module (101), drive chip (12) and coding chip (13) all to be connected between signal input interface (14) and full-color LED lamp group (11), it is characterized in that: described LED controller (10) arranges coding module, load module, processing module, display module and output module, described display module is connected with described coding module, and described output module is connected with external control system (20), also be provided with a plurality of switch MOS dies (103), a plurality of constant current chip (104) and a data interface chip formed by signal amplifier and code translator (102) on described demonstration lamp plate (1), described data interface chip (102) is connected with switch MOS die (103), described switch MOS die (103) shows that with the DIP packaged LED positive pole of module (101) is connected, and for controlling, the DIP packaged LED is shown to module (101) power supply, described constant current chip (104) shows that with the DIP packaged LED negative pole of module (101) is connected, and shows the working current of module (101) for regulating and controlling DIP packaged LED, described signal input interface (14) is connected with external control system (20).

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