CN101488303A - Dual surface LED screen - Google Patents
Dual surface LED screen Download PDFInfo
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- CN101488303A CN101488303A CNA2009100779626A CN200910077962A CN101488303A CN 101488303 A CN101488303 A CN 101488303A CN A2009100779626 A CNA2009100779626 A CN A2009100779626A CN 200910077962 A CN200910077962 A CN 200910077962A CN 101488303 A CN101488303 A CN 101488303A
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Abstract
The invention discloses a double-sided LED screen, comprising a frame, at least one PCB board, a plurality of LED units and at least one control device arranged on the frame; wherein the LED unit comprises at least one LED; the PCB board is provided with at least one power source circuit and at least one signal circuit, the two sides opposite to each other on the PCB board are provided with at least one LED unit respectively; the frame is provided with a plurality of grooves, the PCB boards are arrayed in parallel and fixedly arranged on the grooves of the frame, a display screen light exit plane is formed at the two sides of the frame respectively; and the control device is used for controlling the LED units on each PCB board. By employing the proposal, the LEDs are respectively arranged at the two sides of the PCB board to have the outstanding substantive characteristic of double-direction display, thus meeting the specific demands that the LED screen is arranged and suspended in the middle and people can view the screen from the two sides, and acquiring better technical effect and economic benefit.
Description
Technical field
The present invention relates to a kind of lighting device, relate in particular to a kind of dual surface LED screen.
Background technology
LED display has become the sign of urban information modernization construction as a kind of important means of information propagation.Along with socioeconomic continuous progress, and the LED display technique is constantly perfect, and people will more and more go deep into the understanding of LED display, and its application will be more and more wider.
In the existing LED display, promptly the front is a LED display, and the back side is the screen body, and people can only watch from the front, can't satisfy under the specific occasion specific demand that people watch simultaneously from the tow sides of LED display.In the process of using LED display, brought inconvenience for the user.Therefore, there is defective in prior art, needs to improve.
Summary of the invention
The invention provides the LED screen body that a kind of front and back show.
Technical scheme of the present invention is as follows: a kind of dual surface LED display screen comprises a framework, at least one pcb board, some LED unit, is arranged at least one control device on the framework;
Described LED unit comprises at least one LED light emitting diode;
Described pcb board is provided with at least one power circuit and at least one signal line, and relative dual-side is respectively provided to a few described LED unit on the described pcb board;
Described framework is provided with some grooves, and each pcb board is arranged in parallel, and is fixedly installed on the groove of described framework, forms a display screen exiting surface respectively in the both sides of described framework;
Described control device is used to control the LED unit on each pcb board.
Described dual surface LED screen, described control device comprises inductor, control module, gauge tap and control module;
Described inductor is electrically connected with described control module in proper order with described control module, described gauge tap, is used for the induction variation or receives external command, and notify described control module;
Described control module is used for starting described gauge tap satisfying when presetting condition, and preset LED control signals is sent to described control module;
Described control module is connected with each LED unit, is used for according to described LED control signal each LED light emitting diode of drive controlling.
Described dual surface LED screen, described pcb board are parallelogram.
Described dual surface LED screen is provided with each side of described LED unit, is respectively arranged with continuous groove, is used for being provided with or ccontaining each LED luminescence unit.
Described dual surface LED screen, described LED luminescence unit is the adopting surface mounted LED light emitting diode, the degree of depth of described groove equates with the thickness of described adopting surface mounted LED light emitting diode, is used for ccontaining each LED light emitting diode.
Described dual surface LED screen is provided with a screen layer between the two adjacent pcb boards, be used for filtering each other light wave disturb.
Described dual surface LED screen, described pcb board is provided with some louvres.
Described dual surface LED screen, described dual surface LED screen also is provided with at least one control panel, is connected with described control device, is used to accept external command, controls LED unit on each pcb board by described control device.
Described dual surface LED screen, the shell of described framework, its each wall all is provided with grid or through hole.
The described LED light emitting diode of described dual surface LED is OLED light emitting diode and drives structure thereof.
Adopt such scheme, the present invention is provided with the LED light emitting diode respectively by the both sides on pcb board, makes it to have the double-sided screen structure, makes it to have had the outstanding substantive distinguishing features of two-way demonstration; Can satisfy LED retire from public life middle placement, suspension, the specific needs that people watch from the two sides; Substitute two Daeporis with a two-sided screen and lead to the use of single face screen, not only minimizing takes up room, reduces and connects loaded down with trivial details, minimizing cost input, and succinctly attractive in appearance, esy to use, safe and reliable, thereby obtains better technique effect and economic benefit.
Description of drawings
Fig. 1 is one of dual surface LED screen structural representation among the present invention;
Fig. 2 is the A-A schematic cross-section of Fig. 1;
Fig. 3 is a pcb board structural representation among the present invention;
Fig. 4 is one of pcb board and LED light-emitting diodes pipe jointing synoptic diagram among the present invention;
Fig. 5 be among the present invention pcb board and LED light-emitting diodes pipe jointing synoptic diagram two;
Fig. 6 be among the present invention the dual surface LED screen structural representation two.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, present embodiment provides a kind of dual surface LED screen, comprise a framework 10, be installed in the polylith pcb board that is shaped as parallelogram on the framework 10, the polylith pcb board is arranged in parallel within the groove of framework 10, and the relative dual-side on every pcb board 9 evenly is provided with a plurality of LED luminescence units; In the present embodiment, a LED luminescence unit comprises a LED light emitting diode 8, in framework 10 inside one control device is set also, and described control device is used to control each LED unit on each pcb board.
As shown in Figure 3, described pcb board comprises a first side 1 and the 3rd side 3, a second side 2, one and one the 4th side, and the 4th side and the 3rd side 3 are oppositely arranged; On the 3rd side 3 of described pcb board a cathode power supply circuit, a negative power supply circuit and a signal line are set, the first side 1 of described pcb board is parallel with described second side 2 and is oppositely arranged, the first side 1 of described pcb board, second side 2, install respectively a plurality of light emitting diodes are set, the exiting surface that shield as LED respectively described first side, described second side.
And for example shown in Figure 1, interior edge at framework 10 is provided with groove, the size of groove is less times greater than the cross section of pcb board 9, be provided with draw-in groove in the groove, one side in the cross section of pcb board 9 is provided with buckle, the pairing of draw-in groove and buckle is used, and is used for a polylith pcb board to be separately fixed on the framework 10, to form an above-mentioned dual surface LED screen; Pcb board be provided with circular louvre and framework 10 up and down wall all be lattice-shaped or mesh-shape, make the unimpeded convection current of air in the screen body, very help the components and parts cooling.
As shown in Figure 2, shielding interlayer 11 is housed between the two adjacent pcb boards,, keeps the sharpness and the degree of stability of display screen with filtering light wave interference each other.
Because dual surface LED screen is easy to generate a large amount of heats, if untimely heat radiation will damage electronic component, influences the serviceable life of light emitting diode 8.In order to overcome above problem, as shown in Figure 4, each pcb board can be provided with some through holes; For example, between the 3rd side and the 4th side of each pcb board, be provided with the circular hole 12 of connection.On this basis, an example is that each pcb board height is the same, the circular hole position that is provided with is identical, and each circular hole can be formed the duct of many near linears respectively, and promptly the circular hole 12 on each pcb board is almost at straight line, the duct that this circular hole 12 is formed, not only can heat dissipation ventilation, can also be used as public passage, for example, be used for wiring, comprise netting twine is set, also can be used for passing support bar, be used for fixing each pcb board.
Wherein be arranged on each power circuit on the pcb board 9, also can be set to comprise many cathode power supply circuits and many negative power supply circuits, each cathode power supply line is connected with external power supply respectively with each anode power cord, to guarantee the operate as normal of each LED light emitting diode 8 electronic devices and components such as grade in the pcb board 9; Be provided with align more, the negative power supply circuit can be connected with other electronic devices and components with LED light emitting diode 8 respectively, a certainly aligning, when the negative power supply circuit disconnects, do not influencing the operate as normal of other positive and negative electrode power circuits; Also can be with a pair of positive and negative electrode power circuit wherein as main power line, other positive and negative electrode power circuits are as the standby power supply line, power lead has multiple assurance, makes when main power line disconnects, and does not influence the operate as normal of LED light emitting diode 8 and other electronic devices and components.In order to make in the present embodiment LED lamp bar simple in structure, usually, a cathode power supply circuit and a negative power supply circuit only are set.
And for example, in order to cooperate the display effect of dual surface LED screen better, at least one audio amplifier can also be set.For example, by control panel or telepilot, can implement synchronization modulation, or single face screen and audio amplifier are implemented the substep regulation and control double-sided screen and audio amplifier; Can make double screen show identical vision signal, or show different vision signals.According to different needs different videos, audio effect are set.
Embodiment 2
On the basis of embodiment 1, LED light emitting diode in the present embodiment is the adopting surface mounted LED light emitting diode, on the first side of pcb board and second side, be respectively arranged with continuous groove, be used for ccontaining each adopting surface mounted LED light emitting diode, like this, the adopting surface mounted LED light emitting diode can be separately positioned in each groove, the size of groove is slightly larger than the volume of adopting surface mounted LED light emitting diode, each adopting surface mounted LED light emitting diode can well-proportionedly be arranged in the groove like this, and makes the exiting surface neat and consistent of paster type light emitting type easily; Pcb board is provided with groove can better fix each adopting surface mounted LED light emitting diode, and the thickness of the degree of depth of groove and described adopting surface mounted LED light emitting diode adapts, and described groove is used for fixing lays described adopting surface mounted LED light emitting diode.For example, as shown in Figure 5, after installing whole adopting surface mounted LED light emitting diodes, each LED is within the described groove, and perhaps, described groove is not exposed at the top of each LED.It is horizontally set that the first side that adopting surface mounted LED light emitting diode 15 is arranged on pcb board can be selected, also can consider vertical setting, it is vertical setting that the second side that same adopting surface mounted LED light emitting diode 15 is arranged on pcb board can be selected, and also can consider horizontally set.
Because dual surface LED screen is easy to generate a large amount of heats, if a large amount of heats that produce can not in time shift, can damage electronic component, influence the luminous of light emitting diode 8.In order to overcome above problem, as shown in Figure 5, the 3rd side and the 4th side of each pcb board are provided with square hole 14, because the pcb board that is provided with height is the same, so the square hole 14 on each pcb board is almost at straight line, this square hole 14 not only can heat dissipation ventilation, can also be used to public passage.
According to being respectively arranged with discontinuous groove on the described first side of the needs of different designs, the described second side, described light emitting diode is arranged in the groove of described pcb board.
On pcb board, perhaps, one control device can also be set in screen body inside, this control device comprises an inductor, a control module, a gauge tap and at least one control module.
Inductor is used for induction to be changed, and notice control module, when the condition that presets is satisfied in variation, control module is according to the control program that presets, and the start-up control switch is simultaneously with preset LED control signals, send to control module by signal wire, control module receives the LED control signal from control module, and according to the LED control signal of signal wire transmits, drive controlling LED light emitting diode.For example, inductor is the monitoring temperature unit, when environment temperature surpasses default warning temperature, as 60 degree Celsius or 70 degree, then notifies control module, closes each LED by gauge tap.
Preset LED control signals can be stored in the control module in advance, also can be sent to control module by inductor, is used to control the fluorescent lifetime of each LED and illumination mode etc.
An example is; for each LED light emitting diode of better protection; the overheat switch of between each LED light emitting diode and control module, connecting; behind the control module start-up control switch; by circuit the steering order that presets is passed to control module simultaneously; control module starts overheat switch according to described steering order; and according to described steering order; control the state transformation of overheat switch; under the illumination work that does not influence LED matrix; can prevent from respectively to organize the LED light emitting diode because of working long hours, the interior heat of LED light emitting diode is hoarded and the LED lifetime of LED is shortened, and burns out easily.
For example, at first open overheat switch by the steering order of control module, the LED control signal that control module presets according to signal wire, each LED light emitting diode of drive controlling carries out work.When first side LED light emitting diode work after 10 hours; steering order by control module is closed and is opened overheat switch simultaneously again, and first side LED light emitting diode quits work, simultaneously; second side LED light emitting diode begins, and so analogizes.Because the time of each LED light emitting diode work is shorter, it is less to hoard heat in each LED light emitting diode, and the LED light emitting diode is not easy to burn out, longer service life.And,, so more extend the serviceable life of LED matrix because each the LED light emitting diode running time in the whole LED device reduces one times.
Control module is used for drive controlling LED light emitting diode, and according to the LED control signal of each signal wire transmits, the LED light emitting diode of drive controlling varying number, make each LED light emitting diode can realize that different brightness change, and make to mutually combine between each LED light emitting diode and be the variation of different colours.
Perhaps, control module is the control chip ZQL9712 that the Beijing Zhongqing Micro-digit Equipment Development Co., Ltd produces, four the control signal wire transmission of control signals of control chip ZQL9712 by forming by four leads, and, according to control signals transmitted, 3 LED light emitting diodes of drive controlling, or a plurality of versicolor LED light emitting diodes of drive controlling.
Inductor can be set to an infrared remote receiver; one remote manipulator by people's control can also be set outside the present embodiment LED matrix; remote manipulator sends infrared signal; inductor induction infrared signal; and notice control module; the control module reception notification; send instruction; and, passing to control module by signal wire with preset LED control signals, control module receives the steering order from control module; start overheat switch; and according to the LED control signal of signal wire transmits, drive controlling first side or second side LED light emitting diode can be regulated the power of each LED light emitting diode light and the change color of light by control module.
In addition, inductor can also be an acoustic control inductor or automatically controlled inductor.
For example, the acoustic control inductor is by the variation of induction sound, and notice control module, when the variation of external sound reaches the intensity that presets, control module is according to the control program that presets, start and open gauge tap, then, with the steering order that presets, pass to control module by circuit, and simultaneously, with preset LED control signals, pass to control module by signal wire, the steering order that control module presets according to control module, and, the work of each group LED light emitting diode is controlled according to the LED control signal that signal wire transmits.
Perhaps, automatically controlled inductor, then by regulating the size of electric current, and by automatically controlled inductor induction current variation, and the notice control module, when the variation of electric current reached the intensity that presets, control module was according to the control program that presets, start and open gauge tap, then, with the steering order that presets, pass to control module by circuit, and simultaneously, with preset LED control signals, pass to control module by signal wire, the steering order that control module presets according to control module, and, the work of each group LED light emitting diode is controlled according to the LED control signal that signal wire transmits.
Perhaps, inductor can also be the remote control inductor, sends instruction by sender unit, and the notice control module is controlled the work of each LED light emitting diode control module.
Embodiment 3
As shown in Figure 6, the invention provides a kind of dual surface LED screen, comprise a framework 10, be installed in the polylith pcb board, the polylith pcb board that are shaped as parallelogram on the framework 10 and be arranged in parallel within the groove of framework 10, a plurality of LED luminescence units are arranged on the polylith pcb board, the LED luminescence unit comprises a LED light emitting diode 8 in the present embodiment, in framework 10 inside at least one system control device, at least one circuit control device 16 is set also; Two cathode power supply circuits, two negative power supply circuits and two signal lines are set on the described pcb board 9, and described pcb board 9 comprises a first side, a second side, one the 3rd side and one the 4th side; The 3rd side of described pcb board 9 is parallel with described the 4th side and is oppositely arranged, the 3rd side of described pcb board 9 and described the 4th side are installed respectively a plurality of light emitting diodes 8 are set, the exiting surface that shield as LED respectively described the 3rd side, described the 4th side.
The interior edge of described framework 10 is provided with groove, and the size of groove is provided with draw-in groove less times greater than the cross section of pcb board 9 in the groove, one side in the cross section of pcb board 9 is provided with buckle, draw-in groove and buckle pairing are used, and are used for fixing the described pcb board 9 of polylith, thereby form an above-mentioned two-sided screen.
In addition framework 10 up and down wall all be lattice-shaped or mesh-shape, make the unimpeded convection current of air in the machine, be beneficial to the components and parts cooling.Be fixed together by stationary installation 17 between the two adjacent pcb boards 9, with filtering each other light wave disturb, keep the sharpness and the degree of stability of display screen, and increase the firm stable of LED screen; Stationary installation 17 in the present embodiment is draw-in groove and buckle, by on a pcb board draw-in groove being set, the deck button is set on another pcb board, and two adjacent pcb boards are fixed together, and also can practical screw or nut be fixed or the like according to the needs of different occasions.
Wherein, be arranged on each power circuit on the pcb board, also can be set to comprise many cathode power supply circuits and many negative power supply circuits, each cathode power supply line is connected with external power supply respectively with each anode power cord, with the operate as normal of electronic devices and components such as each LED light emitting diode in the assurance pcb board; Be provided with align more, the negative power supply circuit can be connected with other electronic devices and components with the LED light emitting diode respectively, a certainly aligning, when the negative power supply circuit disconnects, do not influencing the operate as normal of other positive and negative electrode power circuits; Also can be with a pair of positive and negative electrode power circuit wherein as main power line, other positive and negative electrode power circuits are as the standby power supply line, power lead has multiple assurance, makes when main power line disconnects, and does not influence the operate as normal of LED light emitting diode and other electronic devices and components.For example, simple in structure in order to make in the present embodiment LED lamp bar, usually, a cathode power supply circuit and a negative power supply circuit can only be set.
Embodiment 4
On the basis of above-mentioned each example, in order to cooperate the display effect of dual surface LED screen better, at least one audio amplifier is set also, be used for the needs of cooperated with LED screen broadcast program; For better control dual surface LED screen, described dual surface LED screen also is provided with a control panel, is connected with described control device, is used to accept external command, controls LED unit on each pcb board by described control device.Under normal conditions, one cover control panel is set, can implements synchronization modulation, can make double screen show identical vision signal double-sided screen and audio amplifier in dual surface LED screen body inside; Also can one cover control panel be set respectively, respectively single face screen and audio amplifier be implemented the substep regulation and control the single face screen; Or show different vision signals.
In above-mentioned each example, described LED light emitting diode, can be OLED (Organiclight-emitting diode, Organic Light Emitting Diode), comprise double-deck A type (double layer-A, DL-A), double-deck Type B (double layer-B, DL-B), three layers of A type (three layer-A, TL-A), three layers of Type B (three layer-B, TL-B), single quantum or Multiple Quantum Well (multiplequantumwell, MQW) OLED of structure or the like, the present invention do not make any additional limits to this.Like this, need not backlight, OLED adopts extremely thin coating of organic material and glass substrate, as electric current by the time, OLED will be luminous, has that reaction is fast, in light weight, a thin thickness, simple structure, low cost and other advantages.
For example, described OLED basic structure is an indium tin oxide that links to each other with positive source (ITO), adds another metallic cathode, is bundled into the structure as sandwich.Comprised in the total layer: hole transmission layer (HTL, Hole Transport Layer), luminescent layer (EL, Emitter Layer) and electron transfer layer (ETL, Electron Transport Layer).When the supply appropriate voltage, the positive electrical hole will combine in luminescent layer with the negative electrode electric charge, produces light, according to the different RGB three primary colors that produce of its prescription, constitutes basic color.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1, a kind of dual surface LED display screen is characterized in that, comprises a framework, at least one pcb board, some LED unit, is arranged at least one control device on the framework;
Described LED unit comprises at least one LED light emitting diode;
Described pcb board is provided with at least one power circuit and at least one signal line, and relative dual-side is respectively provided to a few described LED unit on the described pcb board;
Described framework is provided with some grooves, and each pcb board is arranged in parallel, and is fixedly installed on the groove of described framework, forms a display screen exiting surface respectively in the both sides of described framework;
Described control device is used to control the LED unit on each pcb board.
2, dual surface LED screen according to claim 1 is characterized in that, described control device comprises inductor, control module, gauge tap and control module;
Described inductor is electrically connected with described control module in proper order with described control module, described gauge tap, is used for the induction variation or receives external command, and notify described control module;
Described control module is used for starting described gauge tap satisfying when presetting condition, and preset LED control signals is sent to described control module;
Described control module is connected with each LED unit, is used for according to described LED control signal each LED light emitting diode of drive controlling.
3, dual surface LED screen according to claim 1 is characterized in that, described pcb board is a parallelogram.
4, dual surface LED screen according to claim 1 is characterized in that, each side in that described LED unit is set is respectively arranged with continuous groove, is used for being provided with or ccontaining each LED luminescence unit.
5, dual surface LED screen according to claim 4 is characterized in that, described LED luminescence unit is the adopting surface mounted LED light emitting diode, and the thickness of the degree of depth of described groove and described adopting surface mounted LED light emitting diode adapts, and is used for ccontaining each LED light emitting diode.
6, dual surface LED screen according to claim 5 is characterized in that, between the two adjacent pcb boards screen layer is set, be used for filtering each other light wave disturb.
7, dual surface LED screen according to claim 1 is characterized in that, described pcb board is provided with some louvres.
8, dual surface LED screen according to claim 1 is characterized in that, described dual surface LED screen also is provided with at least one control panel, is connected with described control device, is used to accept external command, controls LED unit on each pcb board by described control device.
9, dual surface LED screen according to claim 1 is characterized in that, the shell of described framework, and its each wall all is provided with grid or through hole.
According to the arbitrary described dual surface LED screen of claim 1 to 9, it is characterized in that 10, described LED light emitting diode is OLED light emitting diode and drives structure thereof.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910077962A CN101488303B (en) | 2009-02-05 | 2009-02-05 | Dual surface LED screen |
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| CN200910077962A CN101488303B (en) | 2009-02-05 | 2009-02-05 | Dual surface LED screen |
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| CN101488303A true CN101488303A (en) | 2009-07-22 |
| CN101488303B CN101488303B (en) | 2012-10-03 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101826281A (en) * | 2010-04-12 | 2010-09-08 | 杨忠义 | OLED (Organic Light Emitting Diode)-LED intelligent panel display and illumination |
| CN102201184A (en) * | 2010-03-24 | 2011-09-28 | 夏志清 | Liquid-emitting diode (LED) graph-text display lantern |
| CN105405364A (en) * | 2015-12-01 | 2016-03-16 | 杭州新湖电子有限公司 | LED cross display screen structure |
| CN105427756A (en) * | 2015-12-29 | 2016-03-23 | 天津金汇科技有限公司 | Double-sided LED display screen |
| CN105938688A (en) * | 2016-06-24 | 2016-09-14 | 深圳市赫尔诺电子技术有限公司 | Two-face spliced display screen |
| CN106422373A (en) * | 2015-08-10 | 2017-02-22 | Isa股份有限公司 | Stage representation system and stage representation method |
| CN106545826A (en) * | 2016-10-27 | 2017-03-29 | 先恩光电（苏州）有限公司 | A kind of multiple light courcess light fixture management system |
| CN108769673A (en) * | 2018-08-07 | 2018-11-06 | 布勒索特克斯光电设备（合肥）有限公司 | A kind of device and method of camera alignment and optical correction |
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| CN2665852Y (en) * | 2003-08-29 | 2004-12-22 | 涂炎发 | LED luminous tube scanning two-sided display screen |
| CN200965760Y (en) * | 2006-11-07 | 2007-10-24 | 深圳市艾比森实业有限公司 | Split-type surface mounted full color LED display unit |
| CN101118715A (en) * | 2007-08-15 | 2008-02-06 | 李日梅 | Flexible barcode LED display components and display screen combined by same |
| CN201181552Y (en) * | 2008-03-05 | 2009-01-14 | 北京巨数数字技术开发有限公司 | Permeable LED gaze screen |
| CN201374158Y (en) * | 2009-02-05 | 2009-12-30 | 深圳市中庆微科技开发有限公司 | Double-sided LED screen |
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- 2009-02-05 CN CN200910077962A patent/CN101488303B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201184A (en) * | 2010-03-24 | 2011-09-28 | 夏志清 | Liquid-emitting diode (LED) graph-text display lantern |
| CN101826281A (en) * | 2010-04-12 | 2010-09-08 | 杨忠义 | OLED (Organic Light Emitting Diode)-LED intelligent panel display and illumination |
| CN106422373A (en) * | 2015-08-10 | 2017-02-22 | Isa股份有限公司 | Stage representation system and stage representation method |
| CN105405364A (en) * | 2015-12-01 | 2016-03-16 | 杭州新湖电子有限公司 | LED cross display screen structure |
| CN105405364B (en) * | 2015-12-01 | 2017-03-29 | 杭州新湖电子有限公司 | A kind of LED crosses display screen structure |
| CN105427756A (en) * | 2015-12-29 | 2016-03-23 | 天津金汇科技有限公司 | Double-sided LED display screen |
| CN105938688A (en) * | 2016-06-24 | 2016-09-14 | 深圳市赫尔诺电子技术有限公司 | Two-face spliced display screen |
| CN106545826A (en) * | 2016-10-27 | 2017-03-29 | 先恩光电（苏州）有限公司 | A kind of multiple light courcess light fixture management system |
| CN108769673A (en) * | 2018-08-07 | 2018-11-06 | 布勒索特克斯光电设备（合肥）有限公司 | A kind of device and method of camera alignment and optical correction |
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