CN201576412U - Led display screen - Google Patents
Led display screen Download PDFInfo
- Publication number
- CN201576412U CN201576412U CN2009202618910U CN200920261891U CN201576412U CN 201576412 U CN201576412 U CN 201576412U CN 2009202618910 U CN2009202618910 U CN 2009202618910U CN 200920261891 U CN200920261891 U CN 200920261891U CN 201576412 U CN201576412 U CN 201576412U
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- led
- power source
- signal power
- led display
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Abstract
The utility model discloses an LED display screen consisting of a plurality of LED display modules. Each LED display module comprises a metal box, a lower frame crossbeam, a plurality of metal section light bars, and plastic masks assembled on the surfaces of the LED display modules; the plurality of metal section light bars are fixed between the metal box and the lower frame crossbeam; the metal box is internally provided with a signal power source branch plate, a module control card connected with the signal power source branch plate, and a signal power source output interface. The metal box contains a control system and a power supply unit intensively, thus avoiding that the safety performance of the product is reduced as electronic components, the control system and the power source of the LED display screen are in exposing state; and simultaneously, in the utility model, the external connection is more concise and standard, and more convenient for maintenance, and the weight and the cost of the product are reduced, therefore, the LED display screen improves the safety performance and the maintainability of the product, and reduces the weight and cost of the product.
Description
Technical field
The utility model belongs to technical field of flat panel display, relates in particular to a kind of LED display.
Background technology
LED (Light Emitting Diode, light emitting diode) display screen, form by a plurality of light emitting diodes,, rely on the light on and off of light emitting diode to come the display screen of various information such as display text, figure, image, animation and video by the display mode of control light emitting diode.
LED display is divided into graphic display screen and video display screen, forms by the LED matrix-block.Graphic display screen can show Chinese character, English text and figure synchronously with computing machine; Video display screen adopts microcomputer to control, and picture and text, image and luxuriant are play various information with real-time, synchronous information propagation pattern, also can show two dimension, three-dimensional animation, video recording, TV, VCD program and on-the-spot circumstance.LED display display frame is bright in luster, stereoscopic sensation is strong, is widely used in airport, station, harbour, hospital, government organs, exhibition, party, performance scene, sports tournament scene and other public place.
Traditional LED display has two series products frameworks usually: directly LED is shown that one, module is assembled into the product architecture of whole screen; Two, LED is shown module is assembled on the unit box, then unit box is assembled into the two-step product framework of whole screen.
Tradition one series products framework is with low cost, but site operation complexity, product maintenance maintenance difficulty, and a large amount of electronic devices and components and control system and power supply be in naked state and reduced the security of products energy, this series products is applied to low side LED and shows the field usually.
Tradition two series products frameworks are applied to medium and high level LED usually and show the field, unit box is built-in control system and power supply unit, improved the security of products energy, but it is with high costs, and because electronic devices and components, control system and power supply all generate heat towards box house, cause the unit box heat to be concentrated, further cause the increase of properties of product decline and mission life shortening and product bug.
In summary, existing LED display obviously exists inconvenience and defective on reality is used, so be necessary to be improved.
The utility model content
At above-mentioned defective, the purpose of this utility model is to provide a kind of LED display, and it has improved security of products energy and maintainability, and has reduced product weight and cost.
To achieve these goals, the utility model provides a kind of LED display, show that by a plurality of LED module constitutes, described LED shows that module comprises metal box, framework sill, many shape lamp bars and is assemblied in the plastic face mask that described LED shows the module surface, described many shape lamp bars are fixed between described metal box and the framework sill, are provided with module control card and signal power source output interface that signal power source is divided support plate, divided support plate to be connected with described signal power source in the described metal box.
According to LED display of the present utility model, described metal box comprises bonnet, is provided with the Switching Power Supply of dividing support plate to be connected with described signal power source in the described bonnet.
According to LED display of the present utility model, the display circuit board that described shape lamp bar comprises metal support and is fixed in described metal support.
According to LED display of the present utility model, described display circuit board is provided with signal power source input interface, LED and is used to drive the luminous chip for driving of described LED, and described chip for driving is connected with described LED and signal power source input interface respectively.
According to LED display of the present utility model, described chip for driving is pressed close to described metal support, and is coated with the heat-conducting silicone grease layer on the described chip for driving.
According to LED display of the present utility model, the signal power source output interface in the described metal box is connected with the signal power source input interface on the described display circuit board.
According to LED display of the present utility model, described LED display shows that by a plurality of LED the module cascade forms, and each grade LED shows that the module control card of module shows that with back level LED the module control card of module is connected.
According to LED display of the present utility model, described many shape lamp bars are provided with the self-clinching stud of corresponding metal box and framework sill, make described shape lamp bar, metal box and the assembling of framework sill form described LED by the fastening mode of nut and show module.
According to LED display of the present utility model, described metal box is provided with the self-clinching stud of assembling through hole on the corresponding described bonnet, by the fastening mode of nut described metal box and bonnet is assembled together.
According to LED display of the present utility model, it is the double acupuncture needle of 50PIN that described signal power source is divided the interface socket of support plate and module control card; The interface socket of described signal power source output interface and described signal power source input interface is the double acupuncture needle of 14PIN.
The utility model LED display shows that by a plurality of LED module constitutes, described LED shows that module comprises metal box, framework sill, many shape lamp bars and is assemblied in the plastic face mask that described LED shows the module surface, described many shape lamp bars are fixed between described metal box and the framework sill, are provided with module control card and signal power source output interface that signal power source is divided support plate, divided support plate to be connected with described signal power source in the described metal box.Because signal power source divides support plate, module control card and signal power source output interface to be arranged in the metal box, is covered with the Switching Power Supply of dividing support plate to be connected with described signal power source behind the metal box.Metal box is concentrated and is held control system and power supply unit, avoid electronic devices and components, control system and the power supply of LED display to be in naked state and to have reduced the security of products energy, the outside succinct more standard that connects simultaneously of the present utility model, be convenient to more safeguard, reduced product weight and cost.Whereby, the utility model has improved security of products energy and maintainability, and has reduced product weight and cost.
Preferably, described chip for driving is pressed close to described metal support, and is coated with the heat-conducting silicone grease layer on the described chip for driving.The heat that chip for driving produces directly passes to metal support by the heat-conducting silicone grease layer, and diffuses in the external environment condition, has significantly shunted the thermal power of product.Whereby, the utility model effectively reduces the temperature rise of control system and power supply unit, has avoided the concentrated properties of product decline that causes of heat and the increase of product bug, has effectively prolonged the product mission life.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the three-dimensional structure diagram that LED of the present utility model shows a kind of visual angle of module;
Fig. 3 is the three-dimensional structure diagram that LED of the present utility model shows another visual angle of module;
Fig. 4 is the three-dimensional structure diagram of aluminium case body of the present utility model;
Fig. 5 is the three-dimensional structure diagram of aluminium case bonnet of the present utility model;
Fig. 6 is the three-dimensional structure diagram of plastic face mask of the present utility model;
Fig. 7 is the cross-sectional structure synoptic diagram of aluminium section bar lamp bar of the present utility model;
Fig. 8 is the interface principle figure that signal power source of the present utility model is divided support plate and module control card;
Fig. 9 is the interface principle figure of signal power source output interface of the present utility model and signal power source input interface;
Figure 10 is the Signal Spacing drive principle figure of display circuit board of the present utility model;
Figure 11 is the fundamental diagram of chip for driving driving LED of the present utility model;
Figure 12 is a chip for driving Current Regulation fundamental diagram of the present utility model;
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As Fig. 1～shown in Figure 7, a kind of LED display 100 of the utility model, show that by a plurality of LED module 200 constitutes, LED shows that module 200 comprises metal box 10, framework sill 20, many shape lamp bars 40 and is assemblied in the plastic face mask 30 that LED shows module 200 surfaces, many shape lamp bars 40 are fixed between metal box 10 and the framework sill 20, are provided with module control card 14 and signal power source output interface 15 that signal power source is divided support plate 13, divided support plate 13 to be connected with signal power source in the metal box 10.Many shape lamp bars 40 are provided with the self-clinching stud of corresponding metal box 10 and framework sill 20, make shape lamp bar 40, metal box 10 and 20 assemblings of framework sill form LED by the fastening mode of nut and show module 200.Metal box 10 is preferably the aluminium case, and shape lamp bar 40 is preferably aluminium section bar lamp bar, and aluminum material is convenient to heat radiation more, and weight is lighter, and saves cost.
Signal power source of the present utility model divides support plate 13, module control card 14 and signal power source output interface 15 to be arranged in the metal box 10, and the bonnet 11 of metal box 10 is provided with the Switching Power Supply 12 of dividing support plate 13 to be connected with signal power source.Metal box 10 is concentrated and is held control system and power supply unit, avoid electronic devices and components, control system and the power supply of LED display 100 to be in naked state and to have reduced the security of products energy, the outside succinct more standard that connects simultaneously of the present utility model, be convenient to more safeguard, reduced product weight and cost.Whereby, the utility model has improved security of products energy and maintainability, and has reduced product weight and cost.
As shown in Figure 7, shape lamp bar 40 display circuit board 42 that comprises metal support 41 and be fixed in metal support 41.Display circuit board 42 is provided with LED 43, be used for driving LED 43 luminous chip for driving 44 and signal power source input interface 45, and chip for driving 44 is connected with LED 43 and signal power source input interface 45 respectively.Signal power source output interface 15 in signal power source input interface 45 on the display circuit board 42 and the metal box 10 is connected, and is used for signal power source and divides support plate 13 that digital displaying signal and low-voltage dc power supply are assigned to shape lamp bar 40.
Preferably, chip for driving 44 is pressed close to metal support 41, and is coated with the heat-conducting silicone grease layer on the chip for driving 44, and the heat that chip for driving 44 produces directly passes to metal support 41 by the heat-conducting silicone grease layer, and diffuse in the external environment condition, significantly shunted the thermal power of product.Whereby, the utility model effectively reduces the temperature rise of control system and power supply unit, has avoided the concentrated properties of product decline that causes of heat and the increase of product bug, has effectively prolonged the product mission life.
LED shows that module 200 surfaces are equiped with the plastic face mask 30 of mute light black, its concrete structure as shown in Figure 6, plastic face mask 30 both can alleviate the invasion and attack of dust foreign matter to LED 43, can block the dazzle that physical environment causes display screen again, can effectively improve the contrast of LED display 100, promote the visual performance of product.
According to an embodiment of the present utility model, LED display 100 shows that by a plurality of LED module 200 cascades form, and each grade LED shows that the module control card 14 of module 200 shows that with back level LED the module control card 14 of module 200 is connected.When LED display 100 work, prime LED shows that module 200 is connected with the input port of the module control card 14 of this module, and the output cascade vision signal is to this module; The output port of the module control card 14 of this module shows that with back level LED the input port of the module control card 14 of module 200 is connected, and the output cascade vision signal.
After the module control card 14 of this module received the cascade vision signal that prime LED shows that module 200 transmits, intercepting belonged to the vision signal of this module, and the analyzing and processing digital signal that becomes can show, was sent to signal power source and divided support plate 13; The AC power of outside input enters this module by power input simultaneously, and by Switching Power Supply 12 described AC power is transformed into low-voltage dc power supply, supplies with signal power source and divides support plate 13.Signal power source is divided digital signal and the low-voltage dc power supply double needle socket that be assigned to each signal power source output interface 15 of support plate 13 with receiving, and outputs to the double needle socket of the signal power source input interface 45 of each shape lamp bar 40.After the double needle socket of the signal power source input interface 45 of shape lamp bar 40 receives digital signal and low-voltage dc power supply, shinny by 44 driving LED 44 of the chip for driving on the display circuit board 42, and show expected information.
Preferably, as Fig. 8 and shown in Figure 9, it is the double acupuncture needle of 50PIN that signal power source is divided the interface socket of support plate 13 and module control card 14; Signal power source output interface 15 is the double acupuncture needle of 14PIN with the interface socket of signal power source input interface 45.
As shown in figure 10, after the display circuit board 42 of shape lamp bar 40 receives shows signal, adopt No. eight bus driver 74HC245 that shows signal is carried out isolation drive, quality and intensity when guaranteeing the signal transmission.
As shown in figure 11, the display circuit board 42 of shape lamp bar 40 adopts 44 pairs of shows signal that receive of constant-current driven chip to carry out constant-current driving, and the constant current output signal is connected to the negative electrode of LED 43, and the anode of LED43 is connected to the 5V dc power supply terminal.When the output terminal of constant-current driven chip 44 turn-offed, LED 43 went out, and when the output terminal output low level of constant-current driven chip 44, LED 44 is driven by a stable electric current and luminous.Constant-current driven chip 44 can adopt TI 5921/5941, TOSHIBA 62726/62746, MBI 5024/5026, the LED chip for driving of the 28161/28165 various technology maturations of LINSN.
As shown in figure 12, the display circuit board 42 of aluminium section bar lamp bar 40 reaches the purpose of display message by the light on and off of constant-current driven chip 44 control LED 43.Because LED display 100 applied environments are extensive, to provide the brightness of display screen that is complementary to obtain good visual effect at the intensity of illumination in the concrete applied environment, and the luminous intensity of LED 43 directly is subjected to the control of drive current, the big more brightness of drive current is high more in rational current margin, and constant-current driven chip 44 all is provided with the current regulation control function of constant current output, by the size of current that the resistance to earth that changes on the designated pin is regulated constant current output, embodiment is as described below:
When LED display 100 is produced, after each LED parameter is determined, at first process an aluminium section bar lamp bar 40 that module is used, only weld potentiometer RVR, GVR, BVR among Figure 12 in the processing, do not weld fixed resistance value resistance VRR, VRG, VRB, brightness of survey module and colourity are coincide to the target component of product by the regulator potentiometer resistance; Measure potentiometer resistance then, choose resistance and mate rational resistance input volume production, the fixed resistance value resistance VRR, VRG, the VRB that only weld in volume production among Figure 12 do not weld potentiometer RVR, GVR, BVR.
In sum, the utility model LED display shows that by a plurality of LED module constitutes, described LED shows that module comprises metal box, framework sill, many shape lamp bars and is assemblied in the plastic face mask that described LED shows the module surface, described many shape lamp bars are fixed between described metal box and the framework sill, are provided with module control card and signal power source output interface that signal power source is divided support plate, divided support plate to be connected with described signal power source in the described metal box.Because signal power source divides support plate, module control card and signal power source output interface to be arranged in the metal box, is covered with the Switching Power Supply of dividing support plate to be connected with described signal power source behind the metal box.Metal box is concentrated and is held control system and power supply unit, avoid electronic devices and components, control system and the power supply of LED display to be in naked state and to have reduced the security of products energy, the outside succinct more standard that connects simultaneously of the present utility model, be convenient to more safeguard, reduced product weight and cost.Whereby, the utility model has improved security of products energy and maintainability, and has reduced product weight and cost.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. LED display, show that by a plurality of LED module constitutes, it is characterized in that, described LED shows that module comprises metal box, framework sill, many shape lamp bars and is assemblied in the plastic face mask that described LED shows the module surface, described many shape lamp bars are fixed between described metal box and the framework sill, are provided with module control card and signal power source output interface that signal power source is divided support plate, divided support plate to be connected with described signal power source in the described metal box.
2. LED display according to claim 1 is characterized in that described metal box comprises bonnet, is provided with the Switching Power Supply of dividing support plate to be connected with described signal power source in the described bonnet.
3. LED display according to claim 1 is characterized in that, the display circuit board that described shape lamp bar comprises metal support and is fixed in described metal support.
4. LED display according to claim 3, it is characterized in that, described display circuit board is provided with signal power source input interface, LED and is used to drive the luminous chip for driving of described LED, and described chip for driving is connected with described LED and signal power source input interface respectively.
5. LED display according to claim 4 is characterized in that described chip for driving is pressed close to described metal support, and is coated with the heat-conducting silicone grease layer on the described chip for driving.
6. LED display according to claim 4 is characterized in that, the signal power source output interface in the described metal box is connected with the signal power source input interface on the described display circuit board.
7. LED display according to claim 1 is characterized in that, described LED display shows that by a plurality of LED the module cascade forms, and each grade LED shows that the module control card of module shows that with back level LED the module control card of module is connected.
8. LED display according to claim 1, it is characterized in that, described many shape lamp bars are provided with the self-clinching stud of corresponding metal box and framework sill, make described shape lamp bar, metal box and the assembling of framework sill form described LED by the fastening mode of nut and show module.
9. LED display according to claim 2 is characterized in that, described metal box is provided with the self-clinching stud of assembling through hole on the corresponding described bonnet, by the fastening mode of nut described metal box and bonnet is assembled together.
10. LED display according to claim 6 is characterized in that, it is the double acupuncture needle of 50PIN that described signal power source is divided the interface socket of support plate and module control card; The interface socket of described signal power source output interface and described signal power source input interface is the double acupuncture needle of 14PIN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202618910U CN201576412U (en) | 2009-12-24 | 2009-12-24 | Led display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202618910U CN201576412U (en) | 2009-12-24 | 2009-12-24 | Led display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576412U true CN201576412U (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202618910U Expired - Lifetime CN201576412U (en) | 2009-12-24 | 2009-12-24 | Led display screen |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568314A (en) * | 2010-12-17 | 2012-07-11 | 吴小刚 | Grid screen |
| CN102810287A (en) * | 2012-08-10 | 2012-12-05 | 深圳市易事达电子有限公司 | Led display screen |
| WO2014085226A3 (en) * | 2012-12-01 | 2014-08-14 | Lsi Industries, Inc. | Led display and display components |
| WO2014166147A1 (en) * | 2013-04-08 | 2014-10-16 | 深圳市雷迪奥光电技术有限公司 | Led display screen |
| CN105139778A (en) * | 2015-05-18 | 2015-12-09 | 闫新 | Backlight adjustable light display device |
| GB2527725A (en) * | 2013-05-31 | 2016-01-06 | Roe Visual Co Ltd | LED display screen |
| WO2016176900A1 (en) * | 2015-05-05 | 2016-11-10 | 深圳市壹品光电有限公司 | Led display screen |
| CN110010022A (en) * | 2019-04-28 | 2019-07-12 | 深圳市壹品光电有限公司 | A kind of LED transparent display screen and its installation method |
| US10741107B2 (en) | 2013-12-31 | 2020-08-11 | Ultravision Technologies, Llc | Modular display panel |
| US10871932B2 (en) | 2013-12-31 | 2020-12-22 | Ultravision Technologies, Llc | Modular display panels |
-
2009
- 2009-12-24 CN CN2009202618910U patent/CN201576412U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568314A (en) * | 2010-12-17 | 2012-07-11 | 吴小刚 | Grid screen |
| CN102568314B (en) * | 2010-12-17 | 2014-04-30 | 吴小刚 | Grid screen |
| CN102810287A (en) * | 2012-08-10 | 2012-12-05 | 深圳市易事达电子有限公司 | Led display screen |
| WO2014085226A3 (en) * | 2012-12-01 | 2014-08-14 | Lsi Industries, Inc. | Led display and display components |
| WO2014166147A1 (en) * | 2013-04-08 | 2014-10-16 | 深圳市雷迪奥光电技术有限公司 | Led display screen |
| JP2016520856A (en) * | 2013-04-08 | 2016-07-14 | ロエビジュアルカンパニーリミテッドＲＯＥ Ｖｉｓｕａｌ ＣＯ．， Ｌｔｄ． | LED display screen |
| GB2527725A (en) * | 2013-05-31 | 2016-01-06 | Roe Visual Co Ltd | LED display screen |
| US10741107B2 (en) | 2013-12-31 | 2020-08-11 | Ultravision Technologies, Llc | Modular display panel |
| US10871932B2 (en) | 2013-12-31 | 2020-12-22 | Ultravision Technologies, Llc | Modular display panels |
| WO2016176900A1 (en) * | 2015-05-05 | 2016-11-10 | 深圳市壹品光电有限公司 | Led display screen |
| CN105139778A (en) * | 2015-05-18 | 2015-12-09 | 闫新 | Backlight adjustable light display device |
| CN110010022A (en) * | 2019-04-28 | 2019-07-12 | 深圳市壹品光电有限公司 | A kind of LED transparent display screen and its installation method |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN JIUJIA JINGPIN TECHNOLOGY DEVELOPMENT CO. Free format text: FORMER OWNER: DESIGNLED TECHNOLOGY CO., LIMITED Effective date: 20130522 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130522 Address after: 518000, building, B building, the Peach Garden science and Technology Innovation Park, Xixiang street, Shenzhen, Guangdong, 205 Patentee after: Shenzhen City Jia poly crystal technology development Co. Ltd. Address before: 518000, building, B building, the Peach Garden science and Technology Innovation Park, Xixiang street, Shenzhen, Guangdong, 206 Patentee before: Shenzhen Wonderful High Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
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| CX01 | Expiry of patent term |