CN202067463U - LED display screen based on power management - Google Patents
LED display screen based on power management Download PDFInfo
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- CN202067463U CN202067463U CN2010206736054U CN201020673605U CN202067463U CN 202067463 U CN202067463 U CN 202067463U CN 2010206736054 U CN2010206736054 U CN 2010206736054U CN 201020673605 U CN201020673605 U CN 201020673605U CN 202067463 U CN202067463 U CN 202067463U
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Abstract
The utility model relates to an LED display screen based on power management, which comprises an LED display screen array, an industrial control computer module, a driving module and a video acquisition module. An input end of the video acquisition module is connected with the LED display screen array, an output end of the video acquisition module is respectively connected with the industrial control computer module and the driving module, an output end of the industrial control computer module is connected with the driving module and an output end of the driving module is connected with the LED display screen array. The LED display screen based on power management has the advantages that due to the industrial control computer module, the video acquisition module and the driving module consisting of a power source transformation rectifying module, a power source processing module, a power source distributing module, a horizontal drive and a longitudinal drive, dynamic acquisition and reasonable distribution of energy can be realized according to colors and changes of luminance of videos, and finally energy loss of high-consumption components, such as transformers, triodes and the like, can be reduced, and energy conservation is realized.
Description
[technical field]
The utility model relates to a kind of LED display drive unit, refers in particular to a kind of LED display based on power management.
[background technology]
Along with the continuous development of LED technology, people can experience the energy-conservation and facility that the LED technology is brought in daily life.LED display is exactly the field very widely of using now, can see its figure in the bustling highway section in city, in the hotel, and the information that shows of rolling on the LED display is that the city has increased all multicolours.Yet though LED itself is more more energy-conservation than other light source, its demand to the energy of LED display of constituting of the LED of hundreds of thousands also is huge easily.
[summary of the invention]
The purpose of this utility model is to have overcome above-mentioned defective, and a kind of LED display based on power management that can dynamically carry out the distribution of the energy to LED display is provided.
The purpose of this utility model is achieved in that a kind of LED display based on power management, it comprises the LED display array, its improvements are: it also comprises industrial control computer module, driver module and video acquisition module, the video acquisition module input connects the LED display array, output connects industrial control computer module and driver module respectively, the output of industrial control computer module connects driver module, and driver module output connects the LED display array;
In the said structure, described driver module comprises that transformation rectification unit, power supply processing unit, power distribution unit, row drive and row drive, wherein the transformation rectification unit connects power distribution unit by the current processing unit, power distribution unit drives respectively and connects row driving and row driving, and row drives with being listed as to drive to import and is connected the LED display array; Described power distribution unit is also imported the connection video acquisition module; Described row drive also, and input connects the industrial control computer module.
The beneficial effects of the utility model are to reach the driver module by power supply transformation rectification module, power supply processing module, power distribution module are formed, row drives and row drive by configuration industrial control computer, video acquisition module, thereby realize carrying out the distribution of dynamic acquisition and rational energy according to the color of video and the variation of brightness, the final transformer that reduces, the loss of the energy on the contour dissipative cell of triode reaches purpose of energy saving.
[description of drawings]
Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail
Fig. 1 is circuit theory diagrams of the present utility model
Fig. 2 is the utility model specific embodiment circuit theory diagrams
Fig. 3 is the utility model specific embodiment circuit diagram 1;
Fig. 4 is a signal interface circuit;
Fig. 5 is a signal output apparatus;
Fig. 6 is first line-scan circuit;
Fig. 7 is second line-scan circuit;
Fig. 8 is the third line sweep circuit;
Fig. 9 is the fourth line sweep circuit;
Figure 10 is the fifth line sweep circuit;
Figure 11 is the 6th line-scan circuit;
Figure 12 is the 7th line-scan circuit;
Figure 13 is the 8th line-scan circuit;
Figure 14 is that first column signal is handled driving circuit;
Figure 15 is a secondary series signal Processing driving circuit;
Figure 16 is that the 3rd column signal is handled driving circuit;
Figure 17 is first signal amplification circuit;
Figure 18 is the secondary signal amplifying circuit;
Figure 19 is the first signal bleeder circuit;
Figure 20 is the secondary signal bleeder circuit;
Figure 21 is the 3rd signal bleeder circuit;
Figure 22 is the 4th signal bleeder circuit;
Figure 23 is the line scan signals treatment circuit;
Figure 24 is the high-voltage power supply treatment circuit;
Figure 25 is the low-voltage filter circuit;
[embodiment]
Below in conjunction with accompanying drawing the utility model specific embodiment is described in detail.
As shown in Figure 1, the utility model relates to a kind of LED display based on power management, and it comprises LED display array, industrial control computer module, driver module and video acquisition module.The video acquisition module input connects the LED display array, and output connects industrial control computer module and driver module respectively, and the output of industrial control computer module connects driver module, and driver module output connects the LED display array.
Referring to Fig. 2, in concrete the enforcement, the driver module that connects the LED display array comprises that transformation rectification unit, power supply processing unit, power distribution unit, row drive and row drive.The transformation rectification unit connects power distribution unit by the current processing unit, power distribution unit drives respectively and connects row driving and row driving, row drives with row driving input and is connected the LED display array, the video acquisition module input connects the LED display array, output connects the power distribution unit of industrial control computer module and driver module respectively, and the output of industrial control computer module connects the row driving of driver module.
The utility model is gathered the video of playing on the LED display array via video acquisition module by software on the industrial control computer module in use, obtain the color of LED display array and the information of brightness, analyze then, obtain the power supply control information of the single module of LED display array, pass through the transformation rectification unit of driver module again, the power supply processing unit, power distribution unit is reallocated to existing power supply, thereby all will form independently power supply system on each casing of LED display array, directly receive on 220VAC or the 5VDC, be connected on the power distribution unit, on each the LED pixel that is assigned to the LED display array.Data system is delivered to the data of handling well on each casing by sending card by the industrial control computer module, and the row of being made up of the shift register that row drives, row drive drives and makes every LEDs send the color of needs again.
Shown in Fig. 3-25;
Led array
Be the full-color LED display screen of indoor use among Fig. 2, pixel is the three-in-one LED of 3528 encapsulation, and its inside is public anode, and three kinds of colors of RGB are used cathodic control.We will receive the positive pole of power supply by the SM4953 triode with the LED public anode of delegation in the display screen circuit, and the negative electrode of LED is received negative electrode by constant current IC.
Power supply transformation rectification treatment circuit
The power unit circuit of Fig. 3 middle and lower part adopts traditional transformation---rectification---mu balanced circuit, and such design can improve the elasticity of power supply, makes power supply adapt to wideer load variations, can improve the carrying load ability of power supply.Civilian 220VAC becomes 7.5 volts of alternating currents by the transformer transformation, is being direct current through the rectifier bridge rectification, obtains direct current about 5V by π shape filtering circuit again, obtains stable 5V direct current by Voltage stabilizing module.Because industry has had a lot of ameliorative measures at power supply this part, thus simple model analysis just done among the figure, but physical circuit reference switch power supply or constant pressure source design circuit.
Power distribution circuit
The effect of power distribution circuit is that the information that industrial computer sends is converted into actual power, is the circuit in one of them loop among the figure.Among the figure, 5VDC is the 5V direct current that power supply processing module obtains, and adjusts chip by 117 power supplys and obtains the Vout output voltage, so as to adjusting the output power of each module, plays the purpose of economize on electricity.
Video capture circuit
Video acquisition is finished automatically by software.Owing to finish control by industrial computer at the picture that LED display is play, all can directly obtain the detailed data of picture from computing machine, we need develop a little software data on the picture are analyzed, obtain the information of detailed gray scale of each pixel and brightness, just handle and to finish there being Control Software to send to power distribution circuit.
The dataphone interface
Computer is the core of total system work in whole design, and its effect is and the display screen system swap data.The software of computer is sent to control information, display message etc. on the display screen by communication interface, and video information and the duty that display screen is play is sent on the computer software again.Wherein, CLK is a clock signal, for the entire display screen system provides unified pulse signal.OE is an enable signal.A, B, C signal are the row control signal.The D signal is a data transfer signal, each point that the information that needs are shown transmits.The D signal is divided into three kinds of DR, DG, DB, is respectively the data of three kinds of primary colours, can improve the precision of demonstration like this, prevents loss of data.STB is the status signal of display screen, and the information of display screen is provided for computer.
Column drive circuit
Row drive to use 5020 chips, and effect has 2, and one is that each lists with shows signal is delivered to IC control, and another effect is to pass the signal to next IC.OUT1-15 is 16 control signals, can control 16 row LED.S-IN and S-C are the input and output of signal, have only after the signal Processing of oneself finished and signal are being sent the demonstration that just can finish whole screen.R-EXT is an outer meeting resistance, is used for regulating brightness.CLOCK is a clock signal.
Horizontal drive circuit
Row drives fairly simple, by 4953 all anodes of each row LED is all received the positive pole of power supply by triode exactly.Control the operation of each row by the row control signal.
Data processing circuit
Data processing mainly contains 2 effects, and one is signal to be amplified deliver to next display unit, and another is that the row control signal is deciphered, and delivers to horizontal drive circuit.74LS245 triplet bi-directional data buffer has been used in the signal amplification, and 74LS138 No. eight code translators are adopted in decoding.These two IC are international digital IC.
It is to be noted; the utility model is not limited to above-mentioned embodiment; any simple modification, equivalent variations and modification that any those skilled in the art do the foregoing description in based on technical solutions of the utility model all belong in the protection domain of the present utility model.
Claims (2)
1. LED display based on power management, it comprises the LED display array, it is characterized in that: it also comprises industrial control computer module, driver module and video acquisition module, the video acquisition module input connects the LED display array, output connects industrial control computer module and driver module respectively, the output of industrial control computer module connects driver module, and driver module output connects the LED display array.
2. the LED display based on power management as claimed in claim 1, it is characterized in that: described driver module comprises that transformation rectification unit, power supply processing unit, power distribution unit, row drive and row drive, wherein the transformation rectification unit connects power distribution unit by the current processing unit, power distribution unit drives respectively and connects row driving and row driving, and row drives with being listed as to drive to import and is connected the LED display array; Described power distribution unit is also imported the connection video acquisition module; Described row drive also, and input connects the industrial control computer module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206736054U CN202067463U (en) | 2010-12-16 | 2010-12-16 | LED display screen based on power management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206736054U CN202067463U (en) | 2010-12-16 | 2010-12-16 | LED display screen based on power management |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202067463U true CN202067463U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206736054U Expired - Fee Related CN202067463U (en) | 2010-12-16 | 2010-12-16 | LED display screen based on power management |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202067463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929848A (en) * | 2014-05-08 | 2014-07-16 | 深圳怡化电脑股份有限公司 | Photoelectric sensor transmitting terminal driving circuit |
-
2010
- 2010-12-16 CN CN2010206736054U patent/CN202067463U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929848A (en) * | 2014-05-08 | 2014-07-16 | 深圳怡化电脑股份有限公司 | Photoelectric sensor transmitting terminal driving circuit |
| CN103929848B (en) * | 2014-05-08 | 2019-04-05 | 深圳怡化电脑股份有限公司 | A kind of transmitting terminal driving circuit of photoelectric sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160427 Address after: 629000 South Road, airport, Suining economic and Technological Development Zone, Sichuan Patentee after: Innoquick Electronics Technology Co., Ltd. Address before: Tak Road Economic Development Zone Suining City, Sichuan province 629000 ship mountain Patentee before: Sichuan Bonshine Optical Electron Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20161216 |