CN203415204U - Wireless control full-color LED display screen - Google Patents
Wireless control full-color LED display screen Download PDFInfo
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- CN203415204U CN203415204U CN201320432838.9U CN201320432838U CN203415204U CN 203415204 U CN203415204 U CN 203415204U CN 201320432838 U CN201320432838 U CN 201320432838U CN 203415204 U CN203415204 U CN 203415204U
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Abstract
The utility model relates to a wireless control full-color LED display screen, which comprises a controller, a driving circuit and LED unit boards, and is characterized in that an input end of the driving circuit is electrically connected with the controller, an output end of the driving circuit is electrically connected with the LED unit boards, the bottom plate of each LED unit board is evenly provided with LED devices, the bottom plate of each LED unit board adopts a multilayer PCB circuit board, the bottom plates of the LED unit boards are respectively provided with a heat radiation layer, the controller comprises a communication module, a control module and a FLASH memory module, and the control module, the communication module and the FLASH memory module are electrically connected in sequence. The integral circuit structure of the wireless control full-color LED display screen is simple, an adjustable voltage reference source is adopted for stabilizing voltage, and the wireless control full-color LED display screen is conductive to the reduction of production cost and the increase of service life of the LED driving circuit; and the wireless control full-color LED display screen can be operated wirelessly, so that the technical personnel can perform corresponding operations without going to the field.
Description
Technical field
The utility model relates to a kind of LED display, particularly a kind of controlled in wireless full-color LED display screen.
Background technology
LED display is the large scale display system that integrates computer technology, photoelectron technology, microelectric technique, the information processing technology.LED display is by certain control mode, the display screen forming for the device array of the various information such as display text, figure, image, animation, market, video, video signal.In recent years, because semi-conductive making and processing technology are progressively ripe and perfect, light emitting diode (Light Emitting Diode, LED) is occupied an leading position increasingly in solid demonstration.Why in widespread attention it is and developed rapidly, be that the brightness that has with itself is high, operating voltage is low, power consumption is little, microminiaturizedly easily mate with integrated circuit, drive simply, the life-span is long, shock-resistant, steady performance is inseparable, and current just towards high brightness more, more high weather resistance, higher uniformity of luminance, higher reliability and panchromaticization future development.Therefore, the LED display being applied under outdoor scene is also more and more, so, if need to upgrade the displaying contents of LED display or the preset program of change LED display, need technician to operate to scene, make troubles to user's operation and maintenance.
Utility model content
In order to address the above problem, the utility model provides a kind of full-color LED display screen with wireless communication function, makes operating personnel needn't arrive scene and just can operate display screen.
A kind of controlled in wireless full-color LED display screen, comprise controller, driving circuit and LED cell board, it is characterized in that: the input end of described driving circuit is electrically connected at controller, the output terminal of driving circuit is electrically connected at LED cell board, on the base plate of described LED cell board, be evenly provided with LED device, the base plate of described LED cell board adopts multilayer PCB circuit board, the base plate of described LED cell board is respectively equipped with heat dissipating layer, described controller comprises communication module, control module, FLASH memory module, described control module, communication module and FLASH memory module are sequentially electrically connected, described driving circuit comprises DC output circuit and the LED illuminating circuit being comprised of input protection circuit and rectification circuit, also comprise metal-oxide-semiconductor turning circuit and mu balanced circuit, described metal-oxide-semiconductor turning circuit comprises high-voltage MOS pipe, the source electrode of described metal-oxide-semiconductor is connected with the negative pole of described DC output circuit and ground connection, and the drain and gate of described metal-oxide-semiconductor is all connected with the positive pole of described DC output circuit, described mu balanced circuit comprises adjustable voltage reference source, the positive pole of described adjustable voltage reference source is connected with the drain electrode of described metal-oxide-semiconductor, the negative pole of described adjustable voltage reference source is output terminal, be connected with described LED illuminating circuit, on the output terminal of described adjustable voltage reference source, be connected with feedback resistance, the reference edge of described adjustable voltage reference source is in parallel with described feedback resistance, between the grid of described metal-oxide-semiconductor and the positive pole of described DC output circuit, be connected with voltage stabilizing diode, the positive pole of described voltage stabilizing diode is connected with the grid of described metal-oxide-semiconductor, and the negative pole of described voltage stabilizing diode is connected with the positive pole of the positive pole of described DC output circuit, described adjustable voltage reference source, described feedback resistance is comprised of the 5th resistance and the 6th resistance, described the 5th resistance and described the 6th resistance are in parallel, one end of described the 5th resistance and described the 6th resistance is all connected with the output terminal of described adjustable voltage reference source, the other end of described the 5th resistance and described the 6th resistance is all connected with the grid of described metal-oxide-semiconductor, and is connected between the positive pole of described voltage stabilizing diode and the grid of described metal-oxide-semiconductor, described metal-oxide-semiconductor turning circuit comprises the heat sink resistance being connected between the positive pole of described DC output circuit and the grid of described metal-oxide-semiconductor, drain electrode, described heat sink resistance is comprised of the first resistance, the second resistance, the 3rd resistance, the 4th resistance, described the first resistance and described the second resistance are in parallel, described the 3rd resistance and described the 4th resistance are in parallel, and the parallel circuit that described the first resistance and described the second resistance form is connected with the parallel circuit that described the 3rd resistance and described the 4th resistance form, between the source electrode of described metal-oxide-semiconductor and ground, be connected with protective resistance, described metal-oxide-semiconductor is N channel enhancement metal-oxide-semiconductor, and described adjustable voltage reference source is three end adjustable shunt reference sources.
Described communication module is GPRS module or gsm module or WIFI module; Described heat dissipating layer is aluminium base or copper base or iron substrate or aluminium alloy base plate.
The utility model beneficial effect is as follows:
1. controller of the present utility model comprises wireless communication module, for display screen has increased wireless communication function, makes technician needn't go to scene can carry out corresponding operating;
2. described LED cell board of the present utility model is respectively equipped with heat dissipating layer, has solved the problem that too high picture element density produces a large amount of heats and then causes the life-span reduction of LED;
3. LED cell board of the present utility model adopts multilayer PCB circuit board, has effectively reduced electromagnetic interference (EMI), has increased the area of dissipation of LED simultaneously.
4. the whole circuit structure of LED drive circuit of the present utility model is simple, adopt adjustable voltage reference source to carry out voltage stabilizing, be beneficial to the reduction of production cost, in this circuit without using capacitor, can solve and because capacitor life-span is short, cause whole LED drive circuit not long problem in serviceable life, realize the LED drive circuit growth in serviceable life.
Accompanying drawing explanation
Fig. 1: structural representation of the present utility model;
Fig. 2: driving circuit figure of the present utility model.
1-controller, 11-communication module, 12-control module, 13-FLASH memory module;
2-driving circuit;
3-LED cell board.
Embodiment
The embodiment setting forth below 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, a kind of controlled in wireless full-color LED display screen of the utility model, by controller 1, driving circuit 2, a plurality of LED cell boards 3 that are spliced to form display screen integral body form, the input end of described driving circuit 2 is electrically connected at controller 1, the output terminal of driving circuit 2 is electrically connected at LED cell board 3, on the base plate of described LED cell board 3, be evenly provided with LED device, the base plate of described LED cell board 3 adopts multilayer PCB circuit board, the base plate of described LED cell board 3 is respectively equipped with heat dissipating layer, described heat dissipating layer is aluminium base or copper base or iron substrate or aluminium alloy base plate.Described controller 1 comprises communication module 11, control module 12, FLASH memory module 13, and described control module 12, communication module 11 and FLASH memory module 13 successively order are electrically connected.Described communication module 11 is GPRS module or gsm module or WIFI module, and described wireless communication module is GPRS module or gsm module or WIFI module; Described heat dissipating layer is aluminium base or copper base or iron substrate or aluminium alloy base plate.
Wherein, communication module 11 is responsible for the information of receiving remote main frame and is transmitted to control module 12 and FLASH memory module 13, the information that 13 storages of FLASH memory module receive from communication module 11, control module 12 is extracted corresponding command information according to preset program from FLASH memory module 13 canned datas, and then this display screen is operated accordingly.
As shown in Figure 2, described driving circuit 2 comprises DC output circuit and the LED illuminating circuit being comprised of input protection circuit and rectification circuit, also comprise metal-oxide-semiconductor turning circuit and mu balanced circuit, described metal-oxide-semiconductor turning circuit comprises high-voltage MOS pipe, the source electrode of described metal-oxide-semiconductor is connected with the negative pole of described DC output circuit and ground connection, and the drain and gate of described metal-oxide-semiconductor is all connected with the positive pole of described DC output circuit; Described mu balanced circuit comprises adjustable voltage reference source, the positive pole of described adjustable voltage reference source is connected with the drain electrode of described metal-oxide-semiconductor, the negative pole of described adjustable voltage reference source is output terminal, be connected with described LED illuminating circuit, on the output terminal of described adjustable voltage reference source, be connected with feedback resistance, the reference edge of described adjustable voltage reference source is in parallel with described feedback resistance; Between the grid of described metal-oxide-semiconductor and the positive pole of described DC output circuit, be connected with voltage stabilizing diode, the positive pole of described voltage stabilizing diode is connected with the grid of described metal-oxide-semiconductor, and the negative pole of described voltage stabilizing diode is connected with the positive pole of the positive pole of described DC output circuit, described adjustable voltage reference source; Described feedback resistance is comprised of the 5th resistance and the 6th resistance, described the 5th resistance and described the 6th resistance are in parallel, one end of described the 5th resistance and described the 6th resistance is all connected with the output terminal of described adjustable voltage reference source, the other end of described the 5th resistance and described the 6th resistance is all connected with the grid of described metal-oxide-semiconductor, and is connected between the positive pole of described voltage stabilizing diode and the grid of described metal-oxide-semiconductor; Described metal-oxide-semiconductor turning circuit comprises the heat sink resistance being connected between the positive pole of described DC output circuit and the grid of described metal-oxide-semiconductor, drain electrode; Described heat sink resistance is comprised of the first resistance, the second resistance, the 3rd resistance, the 4th resistance, described the first resistance and described the second resistance are in parallel, described the 3rd resistance and described the 4th resistance are in parallel, and the parallel circuit that described the first resistance and described the second resistance form is connected with the parallel circuit that described the 3rd resistance and described the 4th resistance form; Between the source electrode of described metal-oxide-semiconductor and ground, be connected with protective resistance; Described metal-oxide-semiconductor is N channel enhancement metal-oxide-semiconductor, and described adjustable voltage reference source is three end adjustable shunt reference sources.
In concrete operations, use LED full-colour display screen of the present utility model to carry out operated from a distance:
When communication module 11 is GPRS module, on distance host, pass through GPRS transmission mode to the GPRS module transmission control command information of displaying screen controller 1, for example control display screen change and show character, by original " welcome ", change " welcome again " into, send order " welcome again for change character-", after receiving, GPRS module is transmitted to control module 12 and FLASH memory module 13, FLASH memory module 13 these control command information of storage, control module 12 is extracted order " change character " from this control command information according to preset program, and then display screen is operated, change the demonstration character of display screen into " welcome again ",
Same, when communication module 11 is gsm module, on distance host, pass through GSM transmission mode to the gsm module transmission control command information of displaying screen controller 1, after receiving, gsm module is transmitted to control module 12 and FLASH memory module 13, FLASH memory module 13 these control command information of storage, control module 12 is extracted order from this control command information according to preset program, and then display screen is operated accordingly;
Same, when communication module 11 is WIFI module, on distance host, pass through WIFI transmission mode to the WIFI module transmission control command information of displaying screen controller 1, after receiving, WIFI module is transmitted to control module 12 and FLASH memory module 13, FLASH memory module 13 these control command information of storage, control module 12 is extracted order from this control command information according to preset program, and then display screen is operated accordingly.
Obviously, above-described embodiment is only for the utility model example is clearly 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 (2)
1. a controlled in wireless full-color LED display screen, comprise controller (1), driving circuit (2) and LED cell board (3), it is characterized in that: the input end of described driving circuit (2) is electrically connected at controller (1), the output terminal of driving circuit (2) is electrically connected at LED cell board (3), on the base plate of described LED cell board (3), be evenly provided with LED device, the base plate of described LED cell board (3) adopts multilayer PCB circuit board, the base plate of described LED cell board is respectively equipped with heat dissipating layer, described controller comprises communication module, control module, FLASH memory module, described control module, communication module and FLASH memory module are sequentially electrically connected, described driving circuit (2) comprises DC output circuit and the LED illuminating circuit being comprised of input protection circuit and rectification circuit, also comprise metal-oxide-semiconductor turning circuit and mu balanced circuit, described metal-oxide-semiconductor turning circuit comprises high-voltage MOS pipe, the source electrode of described metal-oxide-semiconductor is connected with the negative pole of described DC output circuit and ground connection, and the drain and gate of described metal-oxide-semiconductor is all connected with the positive pole of described DC output circuit, described mu balanced circuit comprises adjustable voltage reference source, the positive pole of described adjustable voltage reference source is connected with the drain electrode of described metal-oxide-semiconductor, the negative pole of described adjustable voltage reference source is output terminal, be connected with described LED illuminating circuit, on the output terminal of described adjustable voltage reference source, be connected with feedback resistance, the reference edge of described adjustable voltage reference source is in parallel with described feedback resistance, between the grid of described metal-oxide-semiconductor and the positive pole of described DC output circuit, be connected with voltage stabilizing diode, the positive pole of described voltage stabilizing diode is connected with the grid of described metal-oxide-semiconductor, and the negative pole of described voltage stabilizing diode is connected with the positive pole of the positive pole of described DC output circuit, described adjustable voltage reference source, described feedback resistance is comprised of the 5th resistance and the 6th resistance, described the 5th resistance and described the 6th resistance are in parallel, one end of described the 5th resistance and described the 6th resistance is all connected with the output terminal of described adjustable voltage reference source, the other end of described the 5th resistance and described the 6th resistance is all connected with the grid of described metal-oxide-semiconductor, and is connected between the positive pole of described voltage stabilizing diode and the grid of described metal-oxide-semiconductor, described metal-oxide-semiconductor turning circuit comprises the heat sink resistance being connected between the positive pole of described DC output circuit and the grid of described metal-oxide-semiconductor, drain electrode, described heat sink resistance is comprised of the first resistance, the second resistance, the 3rd resistance, the 4th resistance, described the first resistance and described the second resistance are in parallel, described the 3rd resistance and described the 4th resistance are in parallel, and the parallel circuit that described the first resistance and described the second resistance form is connected with the parallel circuit that described the 3rd resistance and described the 4th resistance form, between the source electrode of described metal-oxide-semiconductor and ground, be connected with protective resistance, described metal-oxide-semiconductor is N channel enhancement metal-oxide-semiconductor, and described adjustable voltage reference source is three end adjustable shunt reference sources.
2. a kind of controlled in wireless full-color LED display screen according to claim 1, is characterized in that: described communication module (11) is GPRS module or gsm module or WIFI module; Described heat dissipating layer is aluminium base or copper base or iron substrate or aluminium alloy base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320432838.9U CN203415204U (en) | 2013-07-18 | 2013-07-18 | Wireless control full-color LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320432838.9U CN203415204U (en) | 2013-07-18 | 2013-07-18 | Wireless control full-color LED display screen |
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| Publication Number | Publication Date |
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| CN203415204U true CN203415204U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320432838.9U Expired - Fee Related CN203415204U (en) | 2013-07-18 | 2013-07-18 | Wireless control full-color LED display screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531144A (en) * | 2013-07-18 | 2014-01-22 | 邯郸市天之虹光电科技有限公司 | Wireless control full color LED display screen |
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- 2013-07-18 CN CN201320432838.9U patent/CN203415204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531144A (en) * | 2013-07-18 | 2014-01-22 | 邯郸市天之虹光电科技有限公司 | Wireless control full color LED display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANDAN NEON LIGHTING SIGNS CO., LTD. Free format text: FORMER OWNER: HANDAN SKY OF THE RAINBOW OPTOELECTRONICS CO., LTD. Effective date: 20150617 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150617 Address after: 056000 No. 2, Chengxin Road, Handan Development Zone, Hebei 503, China Patentee after: Handan Miki lighting label Co., Ltd. Address before: 057100 Hebei city of Handan province southeast of Yongnian County Industrial Park East Zishan street and Yu Xiang Road intersection angle Patentee before: Handan Sky of The Rainbow OST 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: 20140129 Termination date: 20180718 |