CN105375478A - Power supply control system of convertible LED screen - Google Patents
Power supply control system of convertible LED screen Download PDFInfo
- Publication number
- CN105375478A CN105375478A CN201510910196.2A CN201510910196A CN105375478A CN 105375478 A CN105375478 A CN 105375478A CN 201510910196 A CN201510910196 A CN 201510910196A CN 105375478 A CN105375478 A CN 105375478A
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- power
- power supply
- led screen
- control system
- relay
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 238000005183 dynamical system Methods 0.000 claims description 30
- 230000001680 brushing effect Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract 6
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The invention relates to a power supply control system of a turnover type LED screen, which comprises: a video broadcast distribution system for convertible LED screen. In order to realize that the video broadcast of convertible LED screen is synchronous with the picture upset, still include: the power supply circuit, the motor on the turnover power system, the switching circuit and the control system; the control system is in control connection with the power supply circuit, so that the power supply circuit supplies power to a motor on the turnover power system according to a program of the control system; the control system also indirectly controls the alternating current contactor of the video playing power distribution system through the switching circuit; according to the technical scheme, the power supply control system of the turnover type LED screen not only realizes synchronization of video playing and picture turnover of the turnover type LED screen, but also has the advantages of simple structure, reasonable wiring, high stability, convenience in maintenance and low manufacturing cost.
Description
Technical field
The present invention relates to LED display terminal field, especially relate to a kind of electric power supply control system of convertible LED screen.
Background technology
Convertible LED screen, also claim that LED two sides is turned over, display screen is turned in LED overturn screen or LED tri-face, it is arranged in a large show area by branched leg-of-mutton LED module by vertical direction is regular, Decorative frame is provided with in surrounding, the upper end of its leg-of-mutton LED module is connected with the upper positioning beam doubling as frame, lower end is connected with the underdrive beam doubling as frame, by the Pattern Reversal of setting under dynamical system drives.Leg-of-mutton LED module comprises two air brushing pictures and a LED video display face, and under control of the controller, circulation upset displaying on daytime two air brushing pictures, are turned to LED video display face evening and play visual information.Due to evening, the brightness of displaying video is low, and its power consumption is only 1/4th of daytime, and therefore, convertible LED screen is a kind of information platform of energy-conservation, high benefit.According to the mode of operation of above-described convertible LED screen, need a kind of electric power supply control system making upset control synchronous with video playback.
Summary of the invention
The technical scheme that the present invention will solve is, according to convertible LED screen mode of operation, provide that a kind of structure is simple, wiring rationally, stability is high, be convenient to safeguard, the electric power supply control system of the convertible LED screen of low cost of manufacture.
The present invention will solve the electric power supply control system of a kind of convertible LED screen of its technical problem, comprising: for the video playback distribution system of the video playback of convertible LED screen; This video playback distribution system is made up of the AC/DC power transformation box of the isolating switch of: video playback distribution system, A.C. contactor, branching air switch and convertible LED screen; Civil power accesses from the isolating switch of video playback distribution system; The isolating switch of video playback distribution system, A.C. contactor, branch road air switch, AC/DC power transformation box are electrically connected successively; Operating voltage is provided to the LED display module on triangular prism after exchange conversion is become constant voltage DC by AC/DC power transformation box.In order to the video playback realizing convertible LED screen is synchronous with image turning, also comprise: the motor on commutation circuit, control system, power power supply circuits, upset dynamical system; Control system and power power supply circuits control connection, make power power supply circuits by the program of control system to the feeding electric motors in upset dynamical system; Control system also controls the A.C. contactor of video playback distribution system indirectly by controlling commutation circuit; The video playback realizing convertible LED screen is synchronous with image turning.Motor in power power supply circuits described in said structure, upset dynamical system is the electric power system realizing image turning; Described commutation circuit, for realizing the power supply state of video playback distribution system, is convenient to maintaining.
Commutation circuit of the present invention, this commutation circuit comprises: commutation circuit isolating switch, commutation circuit relay, change over switch; Change over switch comprises: a moving contact and three fixed contacts; The power supply state of video playback distribution system can be changed by adjustment moving contact.
Three fixed contacts according to above-mentioned commutation circuit, these three fixed contacts are respectively: automatic transmission contact, force start shelves contact, positive closing shelves contact; Power supply is divided into two tunnels after the access of commutation circuit isolating switch, and commutation circuit relay of leading up to is electrically connected with automatic transmission contact; Another road is connected with force start shelves contact; Positive closing shelves contact ground or neutral gear.Moving contact is connected with the control end of A.C. contactor; When moving contact and automatic transmission contact, the controlled Systematical control of A.C. contactor, in running order; When moving contact and force start shelves contact, A.C. contactor is in pressure on-state; When moving contact and positive closing shelves contact, A.C. contactor is in positive closing state.Like this, just by manually adjusting change over switch to change the operating state of video playback distribution system, maintaining is convenient to.
Power power supply circuits of the present invention, these power power supply circuits comprise: power power isolating switch, for connect brave power rotate forward power rotate forward relay, for connect power reversion power reversion relay; Civil power is powered after isolating switch access from power, given the feeding electric motors in upset dynamical system by power rotating forward relay and power reversion relay; By motor forward/reverse, air brushing picture cycle is overturn.
Control system of the present invention, this control system comprises: controller, proximity switch; On controller: be provided with multiple sampling input port, rotating forward control output end mouth, reversion control output end mouth, start control output end mouth; Proximity switch is positioned in upset dynamical system, for detecting triangular prism rollover states.
Proximity switch according to above-mentioned control system, this proximity switch comprises: look for face proximity switch, the first air brushing face puts proximity switch in place, the second air brushing face puts proximity switch in place, LED display surface puts proximity switch in place; Multiple sampling input port respectively with look for face proximity switch, the first air brushing face puts proximity switch in place, the second air brushing face puts proximity switch in place, LED display surface puts proximity switch control connection in place.
According to commutation circuit of the present invention and control system, start control output end mouth and be connected with commutation circuit Control; Commutation circuit relay presses director demon and connects or cut out, and controls A.C. contactor simultaneously; Controller indirectly controls A.C. contactor connection by controlling commutation circuit relay or cuts out; Convertible LED screen is made to start video playback by director demon or close video playback.
According to power power supply circuits of the present invention and control system, rotating forward control output end mouth rotates forward Control with power and is connected; Reversion control output end mouth and the power Control that reverses is connected; Power rotates forward relay, power reversion relay presses director demon and connects or cut out, and gives the feeding electric motors in upset dynamical system; Make convertible LED screen by the orderly changing pictures of described director demon.
The further improvement of the power power supply circuits described in electric power supply control system of a kind of convertible LED screen of the present invention, these power power supply circuits by: the motor that power described in multichannel rotates forward relay, power reverses relay and multiple stage overturn in dynamical system forms; Multichannel power rotates forward relay, power reversion relay is connected one by one with the motor overturn described in multiple stage in dynamical system; The corresponding convertible LED screen display surface of driven by motor in every platform upset dynamical system; Like this, just can be spliced into one piece large-scale convertible LED screen.
The further improvement of the control system described in electric power supply control system of a kind of convertible LED screen of the present invention, is provided with on the controller and rotates forward relay to multichannel power, power reverses that relay coordinates, and multichannel rotates forward control output end mouth, reverse control output end mouth and corresponding sampling input port.Like this, controller can start multichannel power power supply circuits simultaneously; Convertible LED screen display surface is overturn simultaneously; Start detection proximity switch can also be increased on the controller; The picture of convertible LED screen is made to realize more flipped form.Such as: the picture of convertible LED screen overturns in order or overturns from centre to two limits; Make the image turning of convertible LED screen rich and varied.
The electric power supply control system of a kind of convertible LED screen of the present invention, beneficial effect: the video playback not only achieving convertible LED screen is synchronous with image turning, and have that structure is simple, wiring rationally, stability is high, be convenient to safeguard, the advantage of low cost of manufacture.
Accompanying drawing explanation
The invention will be further described with reference to the accompanying drawings below.Accompanying drawing is only understands the present invention better, should not become limitation of the present invention.
Fig. 1 is the basic embodiment schematic diagram of the electric power supply control system of a kind of convertible LED screen of the present invention.
Embodiment
Just contrast accompanying drawing below, specific embodiment of the invention is described.
The electric power supply control system of a kind of convertible LED screen provided by the invention, embodiment, as shown in Figure 1, it comprises: for the video playback distribution system 1 of the video playback of convertible LED screen; This video playback distribution system 1 is made up of the AC/DC power transformation box 2 of the isolating switch 11 of: video playback distribution system, A.C. contactor 12, branching air switch 13 and convertible LED screen; Civil power accesses from the isolating switch 11 of video playback distribution system; The isolating switch 11 of video playback distribution system, A.C. contactor 12, branch road air switch 13, AC/DC power transformation box 2 are electrically connected successively; Operating voltage is provided to the LED display module 10 on triangular prism after exchange conversion is become constant voltage DC by AC/DC power transformation box 2; Above-mentioned is display screen video playback distribution system well known in the art, is not described in detail at this.In order to the video playback realizing convertible LED screen is synchronous with image turning, as can be known from Fig. 1, also comprise: it also comprises: the motor 6 on commutation circuit 3, control system 4, power power supply circuits 5, upset dynamical system; Control system 4 and power power supply circuits 5 control connection, make power power supply circuits 5 power to the motor 6 in upset dynamical system by the program of control system 4; Control system 4 also controls the A.C. contactor 12 of video playback distribution system 1 indirectly by controlling commutation circuit 3, the video playback realizing convertible LED screen is synchronous with image turning.Motor 6 in above-mentioned power power supply circuits 5, upset dynamical system is the electric power systems for realizing image turning; Described commutation circuit 3 is for adjusting the power supply state of video playback distribution system 1.
Commutation circuit 3 embodiment, as shown in Figure 1, this commutation circuit 3 comprises: commutation circuit isolating switch 31, commutation circuit relay 32, change over switch 33; Change over switch 33 comprises: moving contact, three fixed contacts; The power supply state of video playback distribution system can be changed by adjustment moving contact.
According to the change over switch 33 in above-mentioned commutation circuit 3 embodiment, as shown in Figure 1, three fixed contacts are respectively: automatic transmission contact, force start shelves contact, positive closing shelves contact; Power supply is divided into two tunnels after commutation circuit isolating switch 31 accesses, and commutation circuit relay 32 of leading up to is electrically connected with automatic transmission contact; Another road is connected with force start shelves contact; Positive closing shelves contact can implement to adopt ground connection or neutral gear according to side circuit; Moving contact is connected with the control end of A.C. contactor 12; When moving contact and automatic transmission contact, A.C. contactor 12 is controlled by control system 4, now in running order; When moving contact and force start shelves contact, A.C. contactor 12 is in force start state; When moving contact and positive closing shelves contact, A.C. contactor 12 positive closing state.Above-described embodiment is known, when needing when carrying out LED display maintaining to start LED display, moving contact and force start shelves contact just can be realized; When carrying out the maintenance of motor maintenance in upset dynamical system or air brushing picture is installed, moving contact and positive closing shelves contact just can be realized.In above-mentioned commutation circuit embodiment, commutation circuit relay 32 can adopt low power auxiliary relay or solid-state relay to realize; Change over switch 33 can adopt rotary conversion or button interlocking change over switch to realize.
Power power supply circuits 5 embodiment, as shown in Figure 1, these power power supply circuits 5 comprise: power isolating switch 51, the power that rotates forward for connecing brave power of power rotates forward relay 52z, for meeting the power reversion relay 52f of power reversion; Civil power is powered after isolating switch 51 access from power, power to the motor 6 in upset dynamical system by power rotating forward relay 52z and power reversion relay 52f; By motor forward/reverse, air brushing picture cycle is overturn.Power in this power power supply circuits embodiment rotates forward relay 52z and power reversion relay 52f can adopt low power auxiliary relay or solid-state relay; Motor 6 in upset dynamical system can adopt synchronous machine, and power is generally at 30W to 120W.
Control system 4 embodiment; As shown in Figure 1, this control system 4 comprises: controller 41, proximity switch 42; Controller 41 is provided with: multiple sampling input port, rotating forward control output end mouth, reversion control output end mouth, startup control output end mouth; Proximity switch 42 is positioned in upset dynamical system, for detecting triangular prism rollover states.Controller 41 in this control system 4 embodiment can adopt PLC programmable logic controller (PLC) to realize, and also can adopt single-chip microcomputer to realize.
According to the proximity switch in above-mentioned control system 4 embodiment; As shown in Figure 1, this proximity switch 42 comprises: look for face proximity switch SQ1, the first air brushing face puts proximity switch SQ2 in place, the second air brushing face puts in place proximity switch SQ3, LED display surface puts in place proximity switch SQ3; Multiple sampling input port respectively with look for face proximity switch SQ1, the first air brushing face puts proximity switch SQ2 in place, the second air brushing face puts in place proximity switch SQ3, LED display surface puts in place proximity switch SQ3 control connection.
According to above-mentioned commutation circuit 3, control system 4 embodiment, as shown in Figure 1, control output end mouth and commutation circuit relay 32 control connection is started; Commutation circuit relay 32 presses controller 41 program and connects or cut out, and controls A.C. contactor 12 simultaneously; Controller 41 connects by controlling the indirect A.C. contactor 12 that controls of commutation circuit relay 32 or cuts out; Convertible LED screen is made to start video playback by controller 41 program or close video playback.
According to above-mentioned power power supply circuits 5, control system 4 embodiment, as shown in Figure 1, rotating forward control output end mouth and power rotate forward relay 52z control connection; Reversion control output end mouth and power reverse relay 52f control connection; Power rotates forward relay 52z, power reversion relay 52f presses controller 41 program and connects or close, and powers to the motor 6 in upset dynamical system; Make convertible LED screen by the orderly changing pictures of described controller 4 program.
Above-described embodiment is the basic embodiment of the electric power supply control system of a kind of convertible LED screen of the present invention.According to above-mentioned power power supply circuits 5 embodiment, these power power supply circuits 5: can be made up of the motor 6 that multichannel power rotates forward relay 52z, power reverses relay 52f and multiple stage overturns in dynamical system; Multichannel power rotates forward relay 52z, power reversion relay 52f is connected (not indicating in the accompanying drawings) one by one with the motor 6 that multiple stage overturns in dynamical system; Motor 6 in every platform upset dynamical system drives corresponding convertible LED screen display surface; Simultaneously, according to above-mentioned controller 4 embodiment, controller 4 also to be arranged and rotate forward relay 52z to multichannel power, power reverses that relay 52f coordinates, and multichannel rotates forward control output end mouth, reverse control output end mouth and corresponding described sampling input port (not indicating in the accompanying drawings); Like this, just can be spliced into large-scale convertible LED screen.This large-scale convertible LED screen, can start multichannel power power supply circuits 5 by controller 4 simultaneously, and convertible LED screen display surface is overturn simultaneously.Start detection proximity switch (not indicating in the accompanying drawings) can also be set on controller 4; The picture of convertible LED screen is overturn in order or overturns from centre to two limits.In a word, the more flipped form of the picture of convertible LED screen can be made by above-mentioned basic embodiment.
Described the present invention by embodiment above, the embodiment provided only exemplarily, not thereby limits practical range of the present invention.Those skilled in the art know, can make various change and amendment according to above concrete enforcement description to the present invention.Therefore, be appreciated that the present invention can otherwise implement, and is not limited to described in above-mentioned specification except above-mentioned particular implementation makes an exception.
Claims (10)
1. an electric power supply control system for convertible LED screen,
Comprise: for the video playback distribution system (1) of the video playback of convertible LED screen;
Described video playback distribution system (1) is made up of the AC/DC power transformation box (2) of the isolating switch (11) of: video playback distribution system, A.C. contactor (12), branching air switch (13) and convertible LED screen;
Civil power accesses from the isolating switch (11) of described video playback distribution system;
The isolating switch (11) of described video playback distribution system, A.C. contactor (12), branch road air switch (13), AC/DC power transformation box (2) are electrically connected successively;
Operating voltage is provided to the LED display module (10) on triangular prism after exchange conversion is become constant voltage DC by described AC/DC power transformation box (2);
It is characterized in that:
It also comprises: the motor (6) on commutation circuit (3), control system (4), power power supply circuits (5), upset dynamical system;
Described control system (4) and described power power supply circuits (5) control connection, make described power power supply circuits (5) by the program of described control system (4) to motor (6) power supply in upset dynamical system;
Described control system (4) also controls the A.C. contactor (12) of described video playback distribution system (1) indirectly by controlling described commutation circuit (3), the video playback realizing convertible LED screen is synchronous with image turning.
2. the electric power supply control system of a kind of convertible LED screen according to claim 1, is characterized in that:
Described commutation circuit (3) comprises: commutation circuit isolating switch (31), commutation circuit relay (32), change over switch (33); Described change over switch (33) comprises: moving contact, three fixed contacts.
3. the electric power supply control system of a kind of convertible LED screen according to claim 2, is characterized in that:
Described three fixed contacts are respectively: automatic transmission contact, force start shelves contact, positive closing shelves contact;
Power supply electricity is divided into two tunnels after described commutation circuit isolating switch (31) access, and the described commutation circuit relay (32) that leads up to is electrically connected with described automatic transmission contact; Another road is connected with described force start shelves contact;
Described positive closing shelves contact ground or neutral gear;
Described moving contact is connected with the control end of described A.C. contactor (12);
When described moving contact and described automatic transmission contact, described A.C. contactor (12) controls by described control system (4), in running order;
When described moving contact and described force start shelves contact, described A.C. contactor (12) is in force start state;
When described moving contact and described positive closing shelves contact, described A.C. contactor (12) is in positive closing state.
4. the electric power supply control system of a kind of convertible LED screen according to claim 1, is characterized in that:
Described power power supply circuits (5) comprise: power power isolating switch (51), for connect power rotate forward power rotate forward relay (52z), for connect power reversion power reversion relay (52f);
Civil power is powered from described power after isolating switch (51) access, is powered to the motor (6) in described upset dynamical system by described power rotating forward relay (52z) and power reversion relay (52f);
Motor (6) forward/reverse in described upset dynamical system makes air brushing picture cycle overturn.
5. the electric power supply control system of a kind of convertible LED screen according to claim 1, is characterized in that:
Described control system (4) comprises: controller (41), proximity switch (42);
Described controller (41) is provided with multiple sampling input port, rotating forward control output end mouth, reversion control output end mouth, starts control output end mouth;
Described proximity switch (42) is positioned in upset dynamical system, for detecting triangular prism rollover states.
6. the electric power supply control system of a kind of convertible LED screen according to claim 5, is characterized in that:
Described proximity switch (42) comprising: look for face proximity switch (SQ1), the first air brushing face puts proximity switch (SQ2) in place, the second air brushing face puts proximity switch (SQ3) in place, LED display surface puts proximity switch (SQ3) in place;
Described multiple sampling input port respectively with describedly look for face proximity switch (SQ1), the first air brushing face puts proximity switch (SQ2) in place, the second air brushing face puts proximity switch (SQ3) in place, LED display surface puts proximity switch (SQ3) control connection in place.
7. the electric power supply control system of a kind of convertible LED screen according to Claims 2 or 3 or 5, is characterized in that:
Described startup control output end mouth and described commutation circuit relay (32) control connection;
Described commutation circuit relay (32) is connected by described controller (41) program or is closed, and controls described A.C. contactor (12) simultaneously;
Described controller (41) indirectly controls described A.C. contactor (12) connection by controlling described commutation circuit relay (32) or cuts out; Convertible LED screen is made to start video playback by described controller (41) program or close video playback.
8. the electric power supply control system of a kind of convertible LED screen according to claim 4 or 5, is characterized in that:
Described rotating forward control output end mouth and described power rotate forward relay (52z) control connection;
Described reversion control output end mouth and described power reverse relay (52f) control connection;
Described power rotates forward relay (52z), described power reversion relay (52f) and connects by described controller (41) program or close, to motor (6) power supply in described upset dynamical system; Make convertible LED screen by the orderly changing pictures of described controller (41) program.
9. the electric power supply control system of a kind of convertible LED screen according to claim 4, is characterized in that:
Described power power supply circuits (5) by: described in multichannel power rotate forward relay (52z), power reverse relay (52f) and multiple stage described in the motor (6) overturn in dynamical system form; Power described in multichannel rotates forward relay (52z), power reversion relay (52f) is connected one by one with the motor overturn described in multiple stage in dynamical system (6); The motor (6) overturn described in every platform in dynamical system drives corresponding convertible LED screen display surface; Be spliced into large-scale convertible LED screen.
10. the electric power supply control system of a kind of convertible LED screen according to claim 5, is characterized in that:
Rotate forward control output end mouth described in multichannel that relay (52f) coordinates that described controller (4) is provided with and rotates forward relay (52z) with power described in multichannel, power reverses, reverse control output end mouth and corresponding described sampling input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910196.2A CN105375478A (en) | 2015-12-10 | 2015-12-10 | Power supply control system of convertible LED screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910196.2A CN105375478A (en) | 2015-12-10 | 2015-12-10 | Power supply control system of convertible LED screen |
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| CN105375478A true CN105375478A (en) | 2016-03-02 |
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| CN201510910196.2A Pending CN105375478A (en) | 2015-12-10 | 2015-12-10 | Power supply control system of convertible LED screen |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201984754U (en) * | 2010-12-31 | 2011-09-21 | 浙江天宇灯饰有限公司 | Turnover three-sided billboard with display device |
| CN201996082U (en) * | 2011-02-14 | 2011-10-05 | 王晔刚 | Automatic turnover picture frame with multiple pictures |
| CN102693697A (en) * | 2012-06-11 | 2012-09-26 | 长沙信元电子科技有限公司 | Power supply method and system for three-sided turnover screen |
| CN203204966U (en) * | 2013-06-21 | 2013-09-18 | 周佳楠 | Novel three-face-turnover LED screen |
| EP2927898A1 (en) * | 2012-11-29 | 2015-10-07 | Leyard Optoelectronic Co., Ltd | Led display device and led control system |
| CN205407257U (en) * | 2015-12-10 | 2016-07-27 | 长沙信元电子科技有限公司 | Power supply control system of convertible LED screen |
-
2015
- 2015-12-10 CN CN201510910196.2A patent/CN105375478A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201984754U (en) * | 2010-12-31 | 2011-09-21 | 浙江天宇灯饰有限公司 | Turnover three-sided billboard with display device |
| CN201996082U (en) * | 2011-02-14 | 2011-10-05 | 王晔刚 | Automatic turnover picture frame with multiple pictures |
| CN102693697A (en) * | 2012-06-11 | 2012-09-26 | 长沙信元电子科技有限公司 | Power supply method and system for three-sided turnover screen |
| EP2927898A1 (en) * | 2012-11-29 | 2015-10-07 | Leyard Optoelectronic Co., Ltd | Led display device and led control system |
| CN203204966U (en) * | 2013-06-21 | 2013-09-18 | 周佳楠 | Novel three-face-turnover LED screen |
| CN205407257U (en) * | 2015-12-10 | 2016-07-27 | 长沙信元电子科技有限公司 | Power supply control system of convertible LED screen |
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Application publication date: 20160302 |