CN107564432A - Programmable image demonstrating apparatus - Google Patents
Programmable image demonstrating apparatus Download PDFInfo
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- CN107564432A CN107564432A CN201710702897.6A CN201710702897A CN107564432A CN 107564432 A CN107564432 A CN 107564432A CN 201710702897 A CN201710702897 A CN 201710702897A CN 107564432 A CN107564432 A CN 107564432A
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- Prior art keywords
- led
- programmable
- image demonstrating
- demonstrating apparatus
- multiple leds
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Abstract
The present invention provides a kind of programmable image demonstrating apparatus, and the programmable image demonstrating apparatus includes fixed plate, multiple LEDs, at least one LED programmable controllers, constant-current drive circuit and painting canvas.Multiple LEDs are arranged at fixed plate.At least one LED programmable controllers are electrically connected with multiple LEDs, control the luminous parameters of multiple LEDs, adjust picture exhibition effect.Constant-current drive circuit is electrically connected with multiple LEDs.Painting canvas is formed at the emission side of multiple LEDs.
Description
Technical field
The present invention relates to the LED field, and more particularly to a kind of programmable image demonstrating apparatus.
Background technology
Advertising lamp box is a kind of visual impact constantly flashed and with reference to stop, effectively raise people；Improve
The image demonstrating apparatus of agate line area utilization.Existing advertising lamp box is mainly EL dynamic lamp boxes, and existing EL is dynamic
Lamp box be luminescent powder and silver-colored sauce activation after, the time point of each luminous component is controlled by the program in controller, so as to
Produce various dynamic effects.
This EL lamp boxes need silk-screen technology that circuit light-emitting area is printed off to come in production, then stick picture, the material used
Material luminescent powder and silver-colored sauce have very big harm to human body.By the light deficiency sent, EL dynamic lamp boxes can be used only in light
Dim place, such as bar place, and bright place on practical daytime cannot be used.And it is further, EL is dynamic
Lamp box usage time one grows easy aging and the easy distortion of color, and a same blackspot of a mould, nothing occurs in light-emitting area
Method reparation.
The content of the invention
A kind of the problem of present invention is in order to overcome existing EL dynamic lamp boxes brightness low, there is provided the high programmable picture of luminosity
Face exhibiting device.
To achieve these goals, the present invention provides a kind of programmable image demonstrating apparatus, the programmable picture exhibition dress
Put including fixed plate, multiple LEDs, at least one LED programmable controllers, constant-current drive circuit and painting canvas.Multiple LEDs
It is arranged at fixed plate.At least one LED programmable controllers are electrically connected with multiple LEDs, control the luminous ginseng of multiple LEDs
Number, adjust picture exhibition effect.Constant-current drive circuit is electrically connected with multiple LEDs.Painting canvas is formed at the luminous of multiple LEDs
Side.
According to one embodiment of the invention, luminous parameters include the fluorescent lifetime, luminosity and luminous frequency of LED
Rate.
According to one embodiment of the invention, flicker, multiple LED after picture exhibition effect is lighted successively including multiple LEDs
Gradual dimmed, multiple LEDs are lighted rear while dimmed, multiple successively after lamp is flashed light simultaneously after, multiple LEDs are lighted successively
LED is lighted rear while dimmed or multiple LEDs and gradually changed colour display simultaneously.
According to one embodiment of the invention, there is USB interface, the journey after programming at least one LED programmable controllers
Sequence is inputted at least one LED programmable controllers by USB interface.
According to one embodiment of the invention, multiple LEDs are formed in multiple LED light bars using modular mode, more
Individual LED light bar is fixed on fixed plate.
According to one embodiment of the invention, programmable image demonstrating apparatus includes multiple LED programmable controllers, each
A LED programmable controller is correspondingly arranged in LED light bar.
According to one embodiment of the invention, programmable image demonstrating apparatus also includes painting canvas fixture, and painting canvas fixture will
The emission side of multiple LEDs is fixed on after painting canvas expansion.
According to one embodiment of the invention, programmable image demonstrating apparatus also includes light sensor, light sensor electricity
Property connection constant-current drive circuit.
According to one embodiment of the invention, constant-current drive circuit includes reference voltage input module, the first transport and placing device, first
Metal-oxide-semiconductor, regulation resistance, current mirror module, first resistor, the second transport and placing device, the second metal-oxide-semiconductor and second resistance.First fortune
The wherein input connection benchmark voltage input module of device is put, another input is connected with the output end of the first transport and placing device.
The control terminal of first metal-oxide-semiconductor is connected to the output end of the first transport and placing device.Regulation resistance is connected to the drain terminal and ground of the first metal-oxide-semiconductor
Between.Current mirror module connects the source of the first metal-oxide-semiconductor, produces a mirror image electricity mirrored with flowing through the electric current of regulation resistance
Stream.First resistor is connected between current mirror module and ground.A second transport and placing device wherein input be connected to first resistor and
The common port of current mirror module, another input are connected with the output end of the second transport and placing device.Second metal-oxide-semiconductor control terminal connects
In the output end of the second transport and placing device, the source of the second metal-oxide-semiconductor connects the LED of multiple series connection.Second resistance is connected to the 2nd MOS
Between the drain terminal and ground of pipe.
In summary, the present invention is provided programmable image demonstrating apparatus and traditional EL innervations is substituted using multiple LEDs
Luminescent powder and silver-colored sauce in lamp box, the luminosity with good luminosity and LED can be entered by constant-current drive circuit
Row adjustment, may be not only suitable for rather dark environment and is equally applicable to the brighter region of light, have good picture exhibition
Show effect.Further, programmable image demonstrating apparatus provided by the invention has fine without any harmful material
Safety in utilization.Programmable image demonstrating apparatus provided by the invention changes the hair of each LED by the way of programming
Between light time, luminosity and glow frequency realize the display effect of innervation.Using programmable mode the present invention is carried
The exhibiting device of confession arbitrarily converts display effect as needed.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly,
And coordinate accompanying drawing, it is described in detail below.
Brief description of the drawings
Fig. 1 show the structural representation of the programmable image demonstrating apparatus of one embodiment of the invention offer.
Fig. 2 show the structural representation of the constant-current drive circuit of one embodiment of the invention offer.
Embodiment
As shown in figure 1, the programmable image demonstrating apparatus that the present embodiment provides includes fixed plate 1, multiple LEDs 2, at least
One LED programmable controller 3, constant-current drive circuit 4 and painting canvas 5.Multiple LEDs 2 are arranged at fixed plate 1.It is at least one
LED programmable controllers 3 are electrically connected with multiple LEDs 2, control the luminous parameters of multiple LEDs, adjust picture exhibition effect.
Constant-current drive circuit 4 is electrically connected with multiple LEDs 2.Painting canvas 5 is formed at the emission side of multiple LEDs 2.
The programmable image demonstrating apparatus that the present embodiment provides in fixed plate 1 by setting multiple LEDs 2, by extremely
Lack a LED programmable controller 3 to change the luminous parameters of multiple LEDs 2, such as fluorescent lifetime, the luminance of each LED
Degree and glow frequency so that the programmable image demonstrating apparatus being made up of multiple LEDs can realize it is a variety of dynamic
Pattern displaying effect, it is specific lighted successively such as multiple LEDs after flicker, multiple LEDs while flash after lighting, multiple LEDs
After lighting successively gradually dimmed, multiple LEDs light successively rear while dimmed, multiple LED and meanwhile light it is rear while dimmed or
Multiple LEDs gradually change colour display etc. multi-effect, as long as LED programmable controllers change the lighting time of each LED 2 i.e.
Above-mentioned Dynamic Announce effect can be achieved.The dynamic of multiple LEDs, which is lighted, to be mapped on painting canvas 5, and the pattern on painting canvas 5 is lighted,
It is achieved thereby that the displaying of the pattern on painting canvas.
The programmable image demonstrating apparatus that the present embodiment provides is by designing LED programmable controllers come to multiple LED etc.
Luminous parameters be controlled so as to realize Dynamic Display, traditional EL dynamic lamp boxes can be substituted completely.And the brightness of LED is then
It is that the driving current provided by constant-current drive circuit 4 is determined, therefore the brightness of multiple LEDs can adjust, so that this
The programmable image demonstrating apparatus that embodiment provides both can be applicable in dim environment, while it is light and spacious to be used in light
Region, there is good versatility.Further, LED 2 and LED programmable controllers 3 belong to electronic component and are
Low-voltage device, will not cause any injury to the health of human body, and use is very safe.
In the present embodiment, multiple LEDs 2 are formed in multiple LED light bars using modular mode, multiple LEDs
Bar is fixed on the fixed plate 1.Modular mode greatly facilitates multiple LED of small volume etc. 2 installation.However,
The present invention is not limited in any way to this.In other embodiments, multiple LEDs 2 can be directly mounted in fixed plate 1.
In the present embodiment, programmable image demonstrating apparatus includes multiple LED programmable controllers 3, in each LED light bar
It is correspondingly arranged on a LED programmable controller 3.Each one LED light bar of LED programmable controllers independent control.This sets
Put the control for greatly facilitating LED programmable controllers to each LED.However, the present invention is not limited in any way to this.In
Multiple LED light bars can be set in other embodiments and share a LED programmable controller 3.In the present embodiment, each LED can
There is USB interface, the program after external programming software programming is inputted to each LED by USB interface and can compiled on programmable controller
Range controller, program can be realized the closing of LED or be lighted by " 0 " or " 1 ".However, the present invention is to LED PLC technologies
The quantity of device 3 is not limited in any way.In other embodiments, can use multidigit can control the LED of more LEDs can simultaneously
Programmable controller 3 is uniformly controlled multiple LEDs.
In the present embodiment, constant-current drive circuit 4 includes reference voltage input module A1, the first transport and placing device OP1, first
Metal-oxide-semiconductor M1, regulation resistance Rext, current mirror module, first resistor R1, the second transport and placing device OP2, the second metal-oxide-semiconductor M2 and
Two resistance R2.First transport and placing device OP1 wherein input connection benchmark voltage input module A1, another input and the first fortune
The output end for putting device OP1 is connected.First metal-oxide-semiconductor M1 control terminal is connected to the first transport and placing device OP1 output end.Regulation resistance
Rext is connected between the first metal-oxide-semiconductor M1 drain terminal and ground.Current mirror module connects the first metal-oxide-semiconductor M1 source, produces one
The image current that electric current with flowing through regulation resistance Rext mirrors.First resistor R1 is connected to current mirror module and ground
Between.A second transport and placing device OP2 wherein inputs are connected to first resistor R1 and the common port of current mirror module, another input
It is connected with the second transport and placing device OP2 output end.Second metal-oxide-semiconductor M2 control terminals are connected to the second transport and placing device OP2 output end, the
Two metal-oxide-semiconductor M2 source connects the LED of multiple series connection.Second resistance R2 is connected between the second metal-oxide-semiconductor M2 drain terminal and ground.
In the present embodiment, current mirror module includes being connected to the 3rd metal-oxide-semiconductor M3 and the 4th on VCC power supplys back-to-back
Metal-oxide-semiconductor M4, the 5th metal-oxide-semiconductor M5 are connected between the 4th metal-oxide-semiconductor M4 and first resistor R1.However, the present invention is to current mirror mould
The physical circuit of block is not limited in any way.
In the present embodiment：
Iref=V0/Rext=Vref/Rext；
Current mirror module causes Iref=I；
Second transport and placing device OP2 is equal by feeding back pressing for first resistor R1 and second resistance R2 both ends, therefore obtains
IoutR2=IR1=IrefR1；
Iout=IrefR1/R2=R1Vref/R2Rext；
Wherein, R1It is first resistor R1 resistance, R2It is second resistance R2 resistance, RextFor regulation resistance Rext resistance
Value.
The output current and R of constant-current drive circuit 4 can be obtained from above formulaextIt is inversely proportional, by adjusting RextResistance come it is real
The adjustment of existing output current, reaches the luminosity for changing LED.In the present embodiment, regulation resistance Rext is by multiple relays
Device and grading resistance composition, LED programmable controllers realize access constant current driving electricity by changing the state of multiple relays
The change of the resistance of regulation resistance in road 4.However, the present invention is not limited in any way to this.
In the present embodiment, programmable image demonstrating apparatus also includes painting canvas fixture 6, and painting canvas fixture 6 opens up painting canvas 5
The emission side of multiple LEDs is fixed on after opening.In the present embodiment, painting canvas fixture 6 is aluminium alloy card cloth frame.However, this
Invention is not limited in any way to this.
For with more preferable energy-saving effect, in other embodiments, programmable image demonstrating apparatus may also include photosensitive biography
Sensor, light sensor are electrically connected with LED programmable controllers, when light sensor detects light change, for more
The photosensor signal detected is exported to LED programmable controllers, LED and may be programmed by good picture exhibition effect, light sensor
Controller changes the current output value of constant-current drive circuit.Such as when light brightens, LED programmable controllers reduce access constant current
Adjusting resistance value in driving current so that the brightness of LED is higher, has more preferable picture exhibition effect, while has and have
Good energy-conserving action.
In summary, the present invention is provided programmable image demonstrating apparatus and traditional EL innervations is substituted using multiple LEDs
Luminescent powder and silver-colored sauce in lamp box, the luminosity with good luminosity and LED can be entered by constant-current drive circuit
Row adjustment, may be not only suitable for rather dark environment and is equally applicable to the brighter region of light, have good picture exhibition
Show effect.Further, programmable image demonstrating apparatus provided by the invention has fine without any harmful material
Safety in utilization.Programmable image demonstrating apparatus provided by the invention changes the hair of each LED by the way of programming
Between light time, luminosity and glow frequency realize the display effect of innervation.Using programmable mode the present invention is carried
The exhibiting device of confession arbitrarily converts display effect as needed.
Although the present invention is disclosed above by preferred embodiment, but is not limited to the present invention, this any known skill
Skill person, without departing from the spirit and scope of the present invention, a little change and retouching can be made, therefore protection scope of the present invention is worked as
It is defined depending on claims scope claimed.
Claims (9)
- A kind of 1. programmable image demonstrating apparatus, it is characterised in that including：Fixed plate；Multiple LEDs, it is arranged at the fixed plate；At least one LED programmable controllers, are electrically connected with the multiple LED, control the luminous parameters of multiple LEDs, adjust Save picture exhibition effect；Constant-current drive circuit, it is electrically connected with the multiple LED；Painting canvas, it is formed at the emission side of the multiple LED.
- 2. programmable image demonstrating apparatus according to claim 1, it is characterised in that the luminous parameters include LED Fluorescent lifetime, luminosity and glow frequency.
- 3. programmable image demonstrating apparatus according to claim 1, it is characterised in that the picture exhibition effect includes more Flicker after individual LED is lighted successively, multiple LEDs while gradual dimmed, more after flicker, multiple LEDs are lighted successively after lighting Individual LED lights rear while dimmed, multiple LED while lights rear while dimmed or multiple LEDs successively gradually to change colour display.
- 4. programmable image demonstrating apparatus according to claim 1, it is characterised in that at least one LED may be programmed There is USB interface, the program after programming is inputted at least one LED programmable controllers by USB interface on controller.
- 5. programmable image demonstrating apparatus according to claim 1, it is characterised in that the multiple LED uses module The mode of change is formed in multiple LED light bars, and multiple LED light bars are fixed on the fixed plate.
- 6. programmable image demonstrating apparatus according to claim 5, it is characterised in that the programmable image demonstrating apparatus Including multiple LED programmable controllers, a LED programmable controller is correspondingly arranged in each LED light bar.
- 7. programmable image demonstrating apparatus according to claim 1, it is characterised in that the programmable image demonstrating apparatus Also include painting canvas fixture, the painting canvas fixture is fixed on the emission side of multiple LEDs after painting canvas is deployed.
- 8. programmable image demonstrating apparatus according to claim 1, it is characterised in that the programmable image demonstrating apparatus Also include light sensor, the light sensor is electrically connected with the constant-current drive circuit.
- 9. programmable image demonstrating apparatus according to claim 1, it is characterised in that the constant-current drive circuit includes：Reference voltage input module；First transport and placing device a, wherein input connects benchmark voltage input module, the output of another input and the first transport and placing device End is connected；First metal-oxide-semiconductor, control terminal are connected to the output end of the first transport and placing device；Regulation resistance, it is connected between the drain terminal and ground of the first metal-oxide-semiconductor；Current mirror module, the source of first metal-oxide-semiconductor is connected, produce one with flowing through the mirror that the electric current of regulation resistance mirrors Image current；First resistor, it is connected between current mirror module and ground；Second transport and placing device, wherein an input is connected to the common port of first resistor and current mirror module, another input with The output end of second transport and placing device is connected；Second metal-oxide-semiconductor, control terminal are connected to the output end of the second transport and placing device, and the source of the second metal-oxide-semiconductor connects the LED of multiple series connection Lamp；Second resistance, it is connected between the drain terminal and ground of the second metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710702897.6A CN107564432A (en) | 2017-08-16 | 2017-08-16 | Programmable image demonstrating apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710702897.6A CN107564432A (en) | 2017-08-16 | 2017-08-16 | Programmable image demonstrating apparatus |
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| CN107564432A true CN107564432A (en) | 2018-01-09 |
Family
ID=60975589
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| CN201710702897.6A Pending CN107564432A (en) | 2017-08-16 | 2017-08-16 | Programmable image demonstrating apparatus |
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Application publication date: 20180109 |