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CN107437381A - A kind of LED display module and LED display - Google Patents

A kind of LED display module and LED display Download PDF

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Publication number
CN107437381A
CN107437381A CN201710833343.XA CN201710833343A CN107437381A CN 107437381 A CN107437381 A CN 107437381A CN 201710833343 A CN201710833343 A CN 201710833343A CN 107437381 A CN107437381 A CN 107437381A
Authority
CN
China
Prior art keywords
led
led display
coil
receiving coil
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710833343.XA
Other languages
Chinese (zh)
Other versions
CN107437381B (en
Inventor
徐陈爱
吴明金
王群罢
王周坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Dicolor Optoelectronics Co Ltd
Original Assignee
Shenzhen Dicolor Optoelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Dicolor Optoelectronics Co Ltd filed Critical Shenzhen Dicolor Optoelectronics Co Ltd
Priority to CN201710833343.XA priority Critical patent/CN107437381B/en
Publication of CN107437381A publication Critical patent/CN107437381A/en
Application granted granted Critical
Publication of CN107437381B publication Critical patent/CN107437381B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026Video wall, i.e. stackable semiconductor matrix display modules
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The present invention provides a kind of LED display module and LED display, including there is receiving coil multiple LED boxes being arranged in order, the bottom of LED box, and there is transmit coil on top.The transmit coil of LED box and the receiving coil of adjacent LED box above are oppositely arranged, and the receiving coil of LED box and the transmit coil of adjacent underlying LED box are oppositely arranged.Due to armature winding of the transmit coil equivalent to transformer, receiving coil is equivalent to secondary windings, when the adjoining installation of two LED boxes, the receiving coil of LED box bottom and the transmit coil on another adjacent LED box top are oppositely arranged, a complete transformer is formed by primary winding and transformer secondary output winding, electric energy up exports to each LED box successively from bottom, the power supply to LED display module can be achieved, during installation, only need the coil alignment between LED box, without the concern for inlet wire problem, faster simplicity is installed, improve the efficiency for taking screen.

Description

A kind of LED display module and LED display
Technical field
The present invention relates to a kind of LED display module and LED display.
Background technology
LED display is a kind of flat-panel monitor.LED display is made up of multiple LED boxes being arranged in order, to LED When casing is powered, to enter number of lines according to needed for the quantity of LED box, the load capacity of every transmission line calculate LED display And selection inlet wire.
The method of existing connection casing is general to enter the multiple LED boxes of tape using one, and the casing of same inlet wire is mutually simultaneously Connection.Each LED box has an input and an output end, when LED box is spliced, each LED box need with it is adjacent Another LED box carry out line, connect the complex operation of LED box, take screen and take considerable time.
The content of the invention
The main object of the present invention is a kind of LED display module of offer and LED display, it is intended to solves prior art LED display inlet wire is complicated, takes the problem of screen is time-consuming.
First aspect present invention provides a kind of LED display module, including:Multiple LED boxes being arranged in order;
The bottom of the LED box is provided with receiving coil, and top is provided with transmit coil, wherein, same LED box Interior receiving coil is connected with transmit coil;
Wherein, the transmit coil of a LED box is relative with the receiving coil of an adjacent LED box above Set, the receiving coil of a LED box and the transmit coil of an adjacent underlying LED box are oppositely arranged.
Optionally, LED display module also includes:Transmission control module and the reception being arranged in the LED box Control module;The transmission control module is connected with the input of the transmit coil in the LED box, described to receive control Module is connected with the output end of the receiving coil in the LED box;The transmission being arranged in the LED box It is connected between control module and receive and control module.
Optionally, LED display module also includes:
The Switching Power Supply and control system being arranged in the LED box;
The output end of the input of the Switching Power Supply and the receiving coil in the LED box where it connects Connect, the output end of the Switching Power Supply is connected with the control system and the LED display module.
Optionally, LED display module also includes:Acrylic board, the acrylic board are arranged on the receiving coil The electric energy delivery outlet of electric energy input port and described transmit coil;
Two adjacent acrylic boards are bonded to each other.
Optionally, the thickness being superimposed after adjacent two acrylic boards fittings be equal to adjacent receiving coil and Spacing distance between transmit coil.
Optionally, the spacing distance of the adjacent receiving coil and transmit coil is up to 10mm.
Optionally, the area of the transmission control module and receive and control module of LED display module is less than 150cm2
Optionally, the size of the LED box of LED display module is:Wide 500mm, high 500mm, thick 80mm;
Optionally, the transmitting coil of LED display module and the receiving coil is in the same size, is:It is long 400mm, wide 70mm, high 15mm.
Optionally, the largest interval distance of the adjacent receiving coil of LED display module and transmit coil is 10mm.
Second aspect of the present invention provides a kind of LED display, including:LED display module described above, in addition to:Bottom Seat;
The base is arranged on below the LED display module, and the base top is provided with transmitting coil;
The transmitting coil of the base and the reception line positioned at the lowermost LED box of the LED display module Circle is oppositely arranged.
Optionally, the transmit coil connection 220V input powers on the base of LED display module.
A kind of LED display module and LED display provided by the invention, including multiple LED boxes being arranged in order, The bottom of LED box is provided with receiving coil, and top is provided with transmit coil.
The transmit coil of one LED box and the receiving coil of adjacent LED box above are oppositely arranged, one The receiving coil of LED box and the transmit coil of adjacent underlying LED box are oppositely arranged.Because transmit coil is suitable In the armature winding of transformer, receiving coil equivalent to transformer secondary windings, when two LED boxes are adjacent close to installation When, the receiving coil of LED box bottom and the transmit coil on another adjacent LED box top are oppositely arranged, i.e., by Primary winding and transformer secondary output winding form a complete transformer, and electric energy is from the bottom of LED display module Up exported successively to each LED box, when the power supply to LED display module can be achieved, and installing, it is only necessary to by LED Coil alignment installation between casing, it is no longer necessary to which the problem of considering inlet wire and line, installation is faster and easy, lifting Take the efficiency of screen.
Brief description of the drawings
The structural representation of LED display in Fig. 1 one embodiment of the invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Embodiment one:
As shown in figure 1, the embodiment of the present invention provides a kind of LED display module 100, including:Multiple LED being arranged in order Casing 1.
The bottom of LED box 1 is provided with receiving coil 10, and top is provided with transmit coil 20, wherein, same LED casees Receiving coil 10 in body 1 is connected with transmit coil 20.
Wherein, the transmit coil 20 of a LED box 1 and the receiving coil of an adjacent LED box 1 above 10 are oppositely arranged, the receiving coil 10 of a LED box 1 and the transmit coil 20 of an adjacent underlying LED box 1 It is oppositely arranged.
In the present embodiment, transmit coil 20 is the armature winding of transformer, and receiving coil 10 is the secondary windings of transformer, That is, transmit coil 20 and receiving coil 10 are respectively half of transformers.When the adjacent close installation of two LED boxes 1, one The receiving coil 10 of the bottom of LED box 1 and the transmit coil 20 on another adjacent top of LED box 1 are oppositely arranged, i.e., by becoming Depressor armature winding and transformer secondary output winding form a complete transformer, and electric energy is past from the bottom of LED display module On exported successively to each LED box 1, when power supply to LED display module can be achieved, and installing, it is only necessary to by LED casees Coil alignment installation between body, it is no longer necessary to which the problem of considering inlet wire and line, installation is faster and easy, improves Take the efficiency of screen.
In one embodiment, LED display module 100 also includes:The He of Switching Power Supply 30 being arranged in LED box 1 Control system 40.
The input of Switching Power Supply 30 is connected with the output end of the receiving coil 10 in the LED box 1 where it, switch electricity The output end in source 30 is connected with control system 40.
Wherein, control system 40 is the module for controlling whole LED box 1, can be circuit board, and its power supply is typically adopted With the direct current of constant pressure.
The effect of Switching Power Supply 30 mainly exports the receiving coil 10 in the LED box 1 where it in the present embodiment Alternating current carry out rectifying and wave-filtering after obtain the direct current of voltage constant, to be powered to the control system 40 in LED box, So that the normal work of LED box 1.
A kind of LED display module in embodiment, in addition to:Be arranged on transmission control module 50 in LED box 1 with And receive and control module 60.
Send control module 50 be connected with the input of the transmit coil 20 in LED box 1, receive and control module 60 and The output end of receiving coil 10 in LED box 1 is connected;
Switching Power Supply 30 is connected with the output end of receive and control module 60.
Send control module 50 and receive and control module 60 controls the progress of transmit coil 20 and receiving coil 10 respectively Send and receive electric energy.Preferably, send control module 50 control will be on 198V-242V voltage-drop loading to transmit coil and defeated Go out, receive and control module 60 controls receiving coil 10 to sense from transmit coil and produce load voltage, and maintenance voltage exists In the range of 198V-242V.
Above-mentioned control system 60 is connected with LED display module respectively, to be controlled to LED display module.
In a kind of embodiment, in addition to:Acrylic board (not shown).
Acrylic board is arranged on the electric energy input port of receiving coil 10 and transmit coil 20 electric energy delivery outlet.Adjacent Two acrylic boards are bonded to each other.
It is that is, defeated in upper and lower two LED boxes 1 setting acrylic board, the electric energy for being specifically located at receiving coil 10 Entrance and transmit coil 20 electric energy delivery outlet, so, when two LED boxes 1 are spliced, adjacent receiving coil 10 and transmission There is acrylic board between coil 20, and two LED boxes 1 can mutually fit.
Preferably, the spacing distance of receiving coil 10 and transmit coil 20 is up to 10mm.
Because magnetic force width penetrates transmission electric energy, metal material interval can send out heat substantial amounts of, so being set in LED box 1 sub- Gram force plate is spaced.Specifically, acrylic board is arranged between two coils, can play a part of protecting coil.Adjacent two Open the spacing distance that the thickness being superimposed after acrylic board fitting is equal between adjacent receiving coil 10 and transmit coil 20.It is preferred that , adjacent receiving coil 10 and transmit coil 20 are 10mm apart from maximum, i.e., adjacent receiving coil 10 and transmit coil 20 Distance range is 0-10mm.
For example, in a kind of embodiment, when there is no acrylic board between adjacent receiving coil 10 and transmit coil 20 When being spaced, distance is 0mm between adjacent receiving coil 10 and transmit coil 20, that is, two adjacent LEDs casing 1 it Between it is seamless spliced.
In order to protect coil, LED display is radiated, set between adjacent receiving coil 10 and transmit coil 20 Put acrylic board to be spaced, several embodiments of illustrating below, to thickness and receiving coil 10 and the transmit coil of acrylic board 20 set the relation between distance to be illustrated, it is worthy of note that, it is only some preferred embodiments to illustrate below, not The present invention is construed as limiting.
In a kind of embodiment, an acrylic board, every acrylic board are set respectively in two adjacent LED boxes 1 Thickness be 5mm, then accordingly, the interval between receiving coil 10 and transmit coil 20 in two adjacent LED boxes 1 10mm is arranged to, when two LED boxes 1 are spliced, it is possible to realize seamless spliced.
In further embodiments, an acrylic board is set respectively in two adjacent LED boxes 1, it is preferred that every The thickness of acrylic board be 1.5mm, then the thickness that two acrylic boards are superimposed is 3mm, then accordingly, this adjacent two 3mm is set between receiving coil 10 and transmit coil 20 in LED box 1, so, two LED boxes 1 are spliced When, it is possible to realize seamless spliced.
And for example, in further embodiments, an acrylic board is set respectively in two adjacent LED boxes 1, preferably , the thickness of every acrylic board is 2.5mm, then the thickness of two acrylic board superpositions is 5mm, then accordingly, this is adjacent 5mm is set between receiving coil 10 and transmit coil 20 in two LED boxes 1, so, by two LED boxes 1 During splicing, it is possible to realize seamless spliced.
In the present invention, each LED box 1 is preferably dimensioned to be:Wide 500mm, high 500mm, thick 80mm.
Transmitting coil and receiving coil it is in the same size, be:Long 400mm, wide 70mm, high 15mm.
In a kind of embodiment, the area for sending control module 50 and receive and control module 60 is less than 150cm2.Preferably, It can will send control module 50 and receive and control module 60 is arranged to PCB (printed circuit board, Printed Circuit Board), size Control is within 150mm × 100mm.
In the present embodiment, the peak power of LED box 1 is 200W, but due to being actually needed Mixed cascading, therefore each transmission Control module 50 and receive and control module 60 are arranged to support 3000W.
Embodiment two:
Please continue to refer to Fig. 1, the embodiment of the present invention provides a kind of LED display, including:As described in embodiment LED display module 100, in addition to:Base 200;
Base 200 is arranged on below LED display module 100, and the top of base 200 is provided with transmitting coil 20.
The transmitting coil 20 of base 200 and the receiving coil 10 positioned at the lowermost LED box 1 of LED display module 100 It is oppositely arranged.
A kind of LED display in embodiment, the transmit coil 20 on base 200 connect 220V input powers.
In a kind of embodiment, LED display also includes:Top cover.
Top cover is arranged on above LED display module 100, and its bottom is provided with receiving coil 10.
The receiving coil 10 of top cover and the phase of transmitting coil 20 of the LED box 1 positioned at the top of LED display module 100 To setting.
So, set LED display lowermost end is base 200, and the transmit coil 20 set on base 200 is equivalent to change The armature winding of depressor, 220V alternating currents are loaded on the transmit coil 20, then the adjacent LED box 1 on base 200 Receiving coil 10 sensing produce 220V voltages, by inside wire connect, by voltage output to same LED box 1 Transmit coil 20.The receiving coil 10 that the voltage of the transmit coil 20 continues to be set superincumbent adjacent LED casing 1 senses, By voltage, upward a LED box 1 is conveyed layer by layer in this approach.Finally, LED display module 100 is most The transmit coil 20 of the LED box 1 of upper end is by the top cover of voltage output to upper end.Obviously, when taking screen, it is only necessary to will be each The receiving coil 10 of LED box and the alignment installation of transmit coil 20 of another LED box 1, it is also in mounting seat 200 As a same reason, the receiving coil 10 for the LED box 1 transmit coil 20 of base 200 being aligned in module can be installed, because This no longer requires consideration for how inlet wire and line, installs more convenient, has saved engineering time.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, every utilization The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, be included within the scope of the present invention.

Claims (10)

  1. A kind of 1. LED display module, it is characterised in that including:Multiple LED boxes being arranged in order;
    The bottom of the LED box is provided with receiving coil, and top is provided with transmit coil, wherein, in same LED box Receiving coil is connected with transmit coil;
    Wherein, the transmit coil of a LED box is relative with the receiving coil of an adjacent LED box above sets Put, the receiving coil of a LED box and the transmit coil of an adjacent underlying LED box are oppositely arranged.
  2. 2. LED display module according to claim 1, it is characterised in that also include:It is arranged in the LED box Transmission control module and receive and control module;
    The transmission control module is connected with the input of the transmit coil in the LED box, the receive and control module It is connected with the output end of the receiving coil in the LED box;
    It is connected between the transmission control module and receive and control module being arranged in the LED box.
  3. 3. LED display module according to claim 2, it is characterised in that also include:It is arranged in the LED box Switching Power Supply and control system;
    The input of the Switching Power Supply is connected with the output end of the receiving coil in the LED box where it, institute The output end for stating Switching Power Supply is connected with the control system and the LED display module.
  4. 4. LED display module according to claim 3, it is characterised in that also include:Acrylic board, the acrylic Plate is arranged on the electric energy delivery outlet of electric energy input port the and described transmit coil of the receiving coil;
    Two adjacent acrylic boards are bonded to each other.
  5. 5. LED display module according to claim 4, it is characterised in that two adjacent acrylic boards The thickness being superimposed after fitting is equal to the spacing distance between adjacent receiving coil and transmit coil.
  6. 6. LED display module according to claim 5, it is characterised in that the adjacent receiving coil and transmission line The spacing distance of circle is up to 10mm.
  7. 7. the LED display module according to any one in claim 1-6, it is characterised in that
    The area of the transmission control module and receive and control module is less than 150cm2
  8. 8. LED display module according to claim 7, it is characterised in that
    The size of the LED box is:Wide 500mm, high 500mm, thick 80mm;
    The transmitting coil and the receiving coil it is in the same size, be:Long 400mm, wide 70mm, high 15mm.
  9. 9. a kind of LED display, it is characterised in that including LED display and base, the LED display is that right such as will Seek the LED display described in any one in 1-8;
    The base is arranged on below the LED display module, and the base top is provided with transmitting coil;
    The transmitting coil of the base and the receiving coil phase positioned at the lowermost LED box of the LED display module To setting.
  10. 10. LED display according to claim 9, it is characterised in that the transmit coil connection 220V on the base is defeated Enter power supply.
CN201710833343.XA 2017-09-15 2017-09-15 LED display screen module and LED display screen Active CN107437381B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710833343.XA CN107437381B (en) 2017-09-15 2017-09-15 LED display screen module and LED display screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710833343.XA CN107437381B (en) 2017-09-15 2017-09-15 LED display screen module and LED display screen

Publications (2)

Publication Number Publication Date
CN107437381A true CN107437381A (en) 2017-12-05
CN107437381B CN107437381B (en) 2023-08-18

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Family Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108564917A (en) * 2018-03-28 2018-09-21 深圳市德彩光电有限公司 LED display and its display methods, the device with store function
CN112015311A (en) * 2020-08-14 2020-12-01 深圳市奥拓电子股份有限公司 LED display screen connection method and device and storage medium

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JP2009022072A (en) * 2007-07-10 2009-01-29 Dainippon Printing Co Ltd Feeding device, power receiving unit and its manufacturing method and power transmitter
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CN202887624U (en) * 2012-09-26 2013-04-17 俞秋霞 Intelligent light-emitting diode (LED) display screen box body
CN103216796A (en) * 2013-03-29 2013-07-24 襄阳亦昇光电科技有限公司 LED (Light-Emitting Diode) lamp based on discrete wireless power supply
CN103867971A (en) * 2013-12-25 2014-06-18 巨尔(上海)光电照明有限公司 LED (Light Emitting Diode) ground-embedded lamp and circuit thereof
CN103959230A (en) * 2011-09-30 2014-07-30 苹果公司 Method for synchronizing content displayed on multiple devices in an array
TWM483521U (en) * 2013-11-11 2014-08-01 Kuan-Ming Hung The LED signboard of wireless power supply configuration
CN204010627U (en) * 2014-06-04 2014-12-10 天一宏业武汉科技发展有限公司 The LED display system of distributed power source power supply
CN106205483A (en) * 2016-08-31 2016-12-07 何建军 A kind of advertisement light emitting device
CN207441132U (en) * 2017-09-15 2018-06-01 深圳市德彩光电有限公司 A kind of LED display module and LED display

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009022072A (en) * 2007-07-10 2009-01-29 Dainippon Printing Co Ltd Feeding device, power receiving unit and its manufacturing method and power transmitter
CN202042151U (en) * 2011-03-28 2011-11-16 深圳市洲明科技股份有限公司 Vehicle-mounted LED (Light-Emitting Diode) display screen
CN103959230A (en) * 2011-09-30 2014-07-30 苹果公司 Method for synchronizing content displayed on multiple devices in an array
CN102737490A (en) * 2012-06-20 2012-10-17 广东威创视讯科技股份有限公司 Digital splicing wall system
CN202887624U (en) * 2012-09-26 2013-04-17 俞秋霞 Intelligent light-emitting diode (LED) display screen box body
CN103216796A (en) * 2013-03-29 2013-07-24 襄阳亦昇光电科技有限公司 LED (Light-Emitting Diode) lamp based on discrete wireless power supply
TWM483521U (en) * 2013-11-11 2014-08-01 Kuan-Ming Hung The LED signboard of wireless power supply configuration
CN103867971A (en) * 2013-12-25 2014-06-18 巨尔(上海)光电照明有限公司 LED (Light Emitting Diode) ground-embedded lamp and circuit thereof
CN204010627U (en) * 2014-06-04 2014-12-10 天一宏业武汉科技发展有限公司 The LED display system of distributed power source power supply
CN106205483A (en) * 2016-08-31 2016-12-07 何建军 A kind of advertisement light emitting device
CN207441132U (en) * 2017-09-15 2018-06-01 深圳市德彩光电有限公司 A kind of LED display module and LED display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108564917A (en) * 2018-03-28 2018-09-21 深圳市德彩光电有限公司 LED display and its display methods, the device with store function
CN112015311A (en) * 2020-08-14 2020-12-01 深圳市奥拓电子股份有限公司 LED display screen connection method and device and storage medium

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