CN105894975B - The bright LED display of water and its display methods - Google Patents

The bright LED display of water and its display methods Download PDF

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Publication number
CN105894975B
CN105894975B CN201610268780.7A CN201610268780A CN105894975B CN 105894975 B CN105894975 B CN 105894975B CN 201610268780 A CN201610268780 A CN 201610268780A CN 105894975 B CN105894975 B CN 105894975B
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China
Prior art keywords
display
led display
triode
led
taps
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CN105894975A (en
Inventor
张少辉
金学彪
韩玉梅
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Zongda Photoelectric Technology (shanghai) Co Ltd
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Zongda Photoelectric Technology (shanghai) Co Ltd
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    • 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
    • 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]

Abstract

A kind of display methods of the bright LED display of water and the bright LED display of water, wherein, the bright LED display of water includes:Including display surface and the back side opposite with display surface;Further include:Some array LED modules, each LED module include the LED display unit and taps for being arranged at display surface;When there is conducting liquid to be sprayed on taps, LED display unit shines.The embodiment of the present invention can conveniently display pattern.

Description

The bright LED display of water and its display methods
Technical field
The present invention relates to LED display, the bright LED display of more particularly to a kind of water and its display methods.
Background technology
LED display has the characteristics that luminous efficiency is high, service life is long, safe and reliable and environmental protection and energy saving, extensive use In various fields such as illumination, amusements.
LED display is typically in lighttight slab construction, and pixel, each picture are formed by light emitting diode (i.e. LED) Matrix arrangement composition with pattern, the cell board of text information, is controlled, so as to show element by control device at certain intervals Go out the pictures such as video, picture, word.
But if someone needs to show new pattern, it is necessary to carry out editing saving and replacement by special purpose computer and software, Interactive difference.
For this reason, it may be necessary to a kind of new display methods and LED display, conveniently display pattern.
The content of the invention
The present invention solve the problems, such as be conveniently display pattern the bright LED display of water and its display methods.
To solve the above problems, the present invention provides a kind of LED display, it is characterised in that LED display includes display surface The back side opposite with display surface;Further include:Some array LED modules, each LED module include the LED for being arranged at display surface Display unit and taps;When there is conducting liquid to be sprayed on taps, LED display unit shines.
Optionally, LED module includes, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, and first Triode, the second triode, the 3rd triode, LED display unit, taps;Wherein, the first end connection power supply of first resistor Voltage vcc, first resistor second end connection taps first end and the first triode base stage, the second end of taps and The emitter ground connection of first triode, the second end of the collector connection second resistance of the first triode and the first of 3rd resistor End, the first end connection power source voltage Vcc of second resistance and the first end with the 4th resistance, the second end connection of the 4th resistance The cathode of LED display unit, the anode of LED display unit connect the collector of the 3rd triode, and the base stage of the 3rd triode connects The second end of 3rd resistor and the collector of the second triode are connect, the emitter of the 3rd triode connects the base stage of the second triode With the first end of the 5th resistance, the second level ground connection of the emitter of the second triode and the 5th resistance.
Optionally, the structure of taps is the waveform conductive concentric circle structure around LED display unit;Concentric structure Conductive structure between spacing be 0.3-0.8 millimeters.
Optionally, wiring board is further included, the first face of wiring board is display surface, and the second face of wiring board is the back side.
Optionally, LED display unit includes electrode portion and the illuminating part in electrode portion, and the wiring board has some pass through The perforate of wiring board is worn, the luminous site is in perforate, and the electrode area is in the back side;Taps is located at display surface and water is opened The structure of pass is the waveform conductive concentric circle structure around LED display unit, and waterproof epoxy glue is filled with the perforate.
Optionally, the display surface of the wiring board is in addition to taps, and coated with hydrophobic coating, and positive taps leads to Circuit via is crossed with the circuit at the back side to be connected.
Optionally, when LED display is placed, display surface is with horizontal plane or with the horizontal 90 ° to 95 °.
Optionally, decompression DC regulator circuit is further included.
The present invention also provides a kind of display methods of the bright LED display of the water as described in above-mentioned any embodiment, including, root Conducting liquid is sprayed in the display surface of LED display according to the first pattern;The display surface of LED display shows the first pattern.
Optionally, the conducting liquid is the water with foreign ion.
Compared with prior art, technical scheme has the following advantages:The bright LED display of water and water of the present invention The display methods of bright LED display can conveniently display pattern, it is interactive strong.And pattern understands convenient and efficient, use Sponge block, mop and absorbent cloth etc. wipe the water on taps, and picture just disappears.
Brief description of the drawings
Fig. 1 shows the LED module circuit diagram of the bright LED display of water;
Fig. 2 shows the diagrammatic cross-section of the bright LED screen of water;
Fig. 3 is the schematic diagram of the bright LED display of water of an embodiment;
Fig. 4 is the partial enlarged view of the part shown in phantom of Fig. 3;
Fig. 5 is when the bright LED display of water is placed and the angle schematic diagram of horizontal plane;
Fig. 6 is the bright LED display decompression DC regulator circuit schematic diagram of water;
Fig. 7 is the display methods schematic diagram of the bright LED display of water.
Embodiment
Existing display screen needs to show new pattern, then needs to replace pixel arrangement, and it is cumbersome and more to replace program Change time length.
For this reason, the present inventor proposes a kind of bright LED screen of water, figure can be shown according to the liquid that user sprays Case;So as to real-time response user, improve interactive with display screen.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention Specific embodiment be described in detail.
In certain embodiments, LED display includes display surface and the back side opposite with display surface;Further include:Some battle arrays Row LED module, each LED module include the LED display unit and taps for being arranged at display surface;It is sprayed on when there is conducting liquid During taps, LED display unit shines.
Please referring to Fig.1, Fig. 1 shows the circuit diagram of the bright LED display of water, including:First resistor R1, second resistance R2, the 3rd resistor triode of R3, the 4th resistance R4, the 5th resistance R5, first Q1, the second triode Q2, the 3rd triode Q3, LED display unit LED, taps R6;Wherein the first triode Q1, the second triode Q2, the 3rd triode Q3 manages for NPN, the One triode Q1 is on-off circuit, the second triode Q2 and the 3rd triode Q3 and is driven as constant current.
Wherein, the first end connection power source voltage Vcc of first resistor R1, the second end connection taps R6 of first resistor R1 First end and the first triode Q1 base stage, the emitter ground connection of the second end of taps R6 and the first triode Q1, first The second end of collector connection second resistance R2 and the first end of 3rd resistor R3 of triode Q1, the first end of second resistance R2 Power source voltage Vcc and the first end with the 4th resistance R4 are connected, the second end connection LED display unit of the 4th resistance R4 is just Pole, the anode of LED display unit connect the collector of the 3rd triode Q3, the base stage connection 3rd resistor R3 of the 3rd triode Q3 Second end and the second triode Q2 collector, the emitter of the 3rd triode Q3 connects the base stage and the of the second triode Q2 The first end of five resistance R5, the emitter of the second triode Q2 and the second level ground connection of the 5th resistance R5.
It should be noted that in circuit diagram, taps R6 is equivalent to resistance, is opened in no conducting liquid conducting water When closing R6, taps R6 is infinity, and at this time, first resistor R1 be operating resistance, and the base stage of the first triode Q1 of guarantee can be with ON operation electric current, so as to cause the level of the 3rd triode Q3 base stages to be pulled low, the 3rd triode Q3 cannot be turned on, therefore, When taps does not have conducting liquid conducting, the anode of LED and the anode of power supply power supply are to disconnect, and LED will not be lit.
In certain embodiments, when no conducting liquid turns on taps R6, the base stage of the first triode Q1 can be led Logical operating current is determined by the following formula:
IR1=(Vcc-VbeQ1)/R1;
Wherein, IR1Can be with ON operation electric current for the base stage of the first triode Q1, Vcc is supply voltage, VbeQ1For first Triode Q1 ground levels and transmitting interstage voltage, R1 are the resistance value of first resistor.
When there is conducting liquid to turn on taps R6, taps R6 is equivalent to turn on the resistance of low current, this In the case of, the base stage of the first triode Q1 is pulled low, so that the first triode Q1 ends.Power supply power Vcc is added by R2 and R3 It is loaded in the base stage of the 3rd triode Q3, so that the 3rd triode Q3 is turned on.3rd triode Q3 is turned on so that the three or three The voltage-drop loading of the emitter of pole pipe Q3 is in the base stage of the second triode Q2, so as to turn on the second triode Q2.In this way, power supply Power Vcc is connected to power cathode by the 4th resistance, LED display unit and the 5th resistance R5, and the LED for forming a conducting is returned Road.
It should be noted that above-mentioned electric current plays pincers using the characteristic that the second triode Q2Vbe turn-on powers are 0.3V The reference voltage of position.5th resistance R5 is clamper current-limiting resistance, wherein, the resistance value of the 5th resistance R5 is electric according to the work of LED Stream is chosen, and as some embodiments, the operating current of LED is determined by the following formula:
IR5=VbeQ2/R5;
Wherein, IR5During to there is conducting liquid to turn on taps R6, the operating current of LED;VbeQ2For the second triode Q2 bases Level and transmitting interstage voltage, R5 are the resistance value of the 5th resistance.
In certain embodiments, the resistance value of the 5th resistance is 15 ohm, electric between the second triode Q2 ground levels and emitting stage Press as 0.3V, IR5=VbeQ2/ R5=0.3/15=0.02A.
In certain embodiments, the resistance value of the 4th resistance R4 can be according to Vcc and VLEDIt is adjusted.As some realities Example is applied, the resistance value of the 4th resistance R4 can be chosen according to the following formula:
R4=(Vcc-VLED-VbeQ2)/ILED
Wherein, Vcc is supply voltage, VLEDIt is different and different according to the species of LED, as some embodiments, reddish yellow LED VLEDFor 1.8-2.2V, the V of turquoise white LEDsLEDFor 3.0-3.5V, VbeQ2It is electric between the second triode Q2 ground levels and emitting stage Pressure, ILEDFor the rated current of LED normal works.
It should be noted that taps is defined as the switch that sprinkling conducting liquid can turn in the present invention.Specifically The structure of taps refer to follow-up description.Conducting liquid can be the water with foreign ion.Water i.e. in daily life. Water in daily life more or less contains impurity, so that being sprayed in taps 130 so that the precalculated position of LED screen Shine.Conducting liquid can also be the liquid that other contain conductive ion, such as sodium chloride solution etc..
In certain embodiments, please refer to Fig.2, Fig. 2 shows the diagrammatic cross-section of the bright LED screen of water.The bright screen of water includes: Wiring board 100, the first face of wiring board 100 is display surface I, and the second face of wiring board 100 is back side II.
The wiring board 100 can be printed circuit board (Printed circuit board, PCB).
Wherein, LED display unit 110 includes electrode portion 111 and the illuminating part 112 in electrode portion 111, the wiring board 100 have it is some through wiring board 100 perforates 120 (it should be noted that perforate 120 in fig. 2 by illuminating part 112 and prevent Water epoxy glue 130 is filled), the illuminating part 112 is located in perforate 120, and the electrode portion 111 is located at back side I;The perforate Waterproof epoxy glue 130 is filled with 120.
As some embodiments, LED display unit 110 can be red LED, blue led, green LED, yellow led or White LED.Or the combination of above-mentioned LED.Specially illustrate herein, should not too limit the scope of the invention.Need to illustrate , eyes of burning in order to prevent, the illuminating part 112 of LED uses atomization process, on the surface of illuminating part 112 coated with diffusion Agent.
As some embodiments, LED display is made of 16 × 16 LED display unit, spacing between LED display unit For 16 millimeters.LED display unit is designed to the circle of 3.5 millimeters of diameter.The height of illuminating part 112 is 0.9-1 millimeters, electrode portion 111 use 2.2 millimeters × 1.2 millimeters of flat, and the thickness of electrode portion 111 is 0.15 millimeter.Those skilled in the art should This knows, the parameter and quantity of suitable LED display unit can also be selected according to actual LED display.
Please refer to Fig.3 and Fig. 4, wherein Fig. 4 be Fig. 3 part shown in phantom partial enlarged view, as some implementation Example, taps 130 are located at the structure of display surface I and taps 130 for (after packaged, LED is shown around LED display unit 112 Show that the surface of unit 112 is filled with waterproof epoxy glue) waveform conductive concentric circle structure.
Please continue to refer to Fig. 3 and Fig. 4, taps includes two electrodes, first electrode 131 and second electrode 132.Wherein One electrode 131 and second electrode 132 can be by being connected through the electrode of wiring board 100 with the circuit at the back side.
First electrode 131 and second electrode 132 have spacing.As some embodiments, first electrode 131 and second electrode 132 justify structure for waveform conductive concentric, so as in the case where area is certain, increase the length of side of concentric circles, so as to increase The chance for adding taps to be contacted with conducting liquid, increases the sensitivity of taps.As some embodiments, 131 He of first electrode The spacing of second electrode 132 is between 0.3-0.8 millimeters, and if greater than 0.3-0.8 millimeters, then taps spacing is too wide is unfavorable for Electric conductivity, if less than 0.3-0.8 millimeters, then is unfavorable for subsequently drying conducting liquid.
As some embodiments, the display surface I of the wiring board 100 is in addition to taps, coated with hydrophobic coating 140. To be conducive to increase the chance of taps contact conducting liquid.And LED display is avoided to occur ponding problem elsewhere, profit In cleaning LED display.As some embodiments, hydrophobic coating 140 is coating of titanium dioxide.
As some embodiments, refer to Fig. 5, when LED display is placed, display surface I with horizontal plane or with level The angle [alpha] in face is 90 ° to 95 °.So as to because the effect of gravity, ensures that the display surface of LED display will not ponding.
As some embodiments, Fig. 6 is refer to, the bright LED screen of water further includes decompression DC regulator circuit.
Wherein, CON1 is 220V exchange input waterproof connectors end;RV1 is played when non-loaded for 14D471K varistors Protect circuit function;F1 is PTC JKP250-180 resettable fuses;Formed and discharged back with C1 when R7 is exchanges positive and negative exchange Road;C1 is decompression capacitor, and pressure-resistant selection 400V, capacitance needs electric current to set according to load, and formula is as follows:X=1/2 π fC are (public In formula:X is equivalent resistance, and f is ac frequency, and China is 50Hz, and C is the capacitance selected).
The operating current of load:Iload=Uin/X
(in formula:X is equivalent resistance, and Uin is input AC equivalent voltage, IloadElectric current is needed for load);
As some embodiments, the maximum load calculating current according to each cell board is:Imax=16x16x0.02= (16X16 is the horizontal and vertical LED quantity of every module unit plate to 5.12A, and 0.02 is the rated operational current of LED, and unit is peace Training)
According to load current and the alternating voltage and frequency of power grid,
Finally show that capacitance is:C=Iload/ Uin2 π f=5.12/220X2X3.14X50=74.12uF are (according to national standard 82uF need to be used)
R8 prevents powered on moment from damaging late-class circuit to power on current-limiting resistance;75 ohm, 10W need to be used;
Diode D1, D2, D3, D4 form full-bridge finishing circuit, it is necessary to which rated current is in 6-8A diodes;
C2 is commutation capacitor, needs the capacitance of different capabilities make it that output voltage is steady according to the voltage waveform that circuit is surveyed It is fixed, do not stop;
R9, R10 are the continued flow resistance of switching tube, ensure well to turn on during normal work;
Q4 is the metal-oxide-semiconductor of N-channel, plays the role of adjusting output current size;The circuit of the present embodiment is selected IRL3705Z, it may be desirable to meet electric current>The metal-oxide-semiconductor of 6A is replaced;
U1 forms reference voltage circuit for TL431L and resistance R11, R12;
According to the selection formula of the reference voltage resistance of TL431L:U0=(1+R12/R11) 2.5V, in the present embodiment, water Bright LED screen selects 5V, so R11=R12=1K ohm;
C3 is output filtering voltage regulation capacitance, selects 100uF/25V;
R13 and LED2 composition power indicating circuits, LED can be bright when having electricity, the convenient electric power thus supplied for intuitively checking lamp plate;
Vcc is connected for direct current 5V with constant-current circuit VCC ends, and stable working power is provided to the bright screen of LED water.
In certain embodiments, all constant currents and reduction voltage circuit are all designed at the back side of the bright LED screen of water, and are placed on mould In be potted marine glue, to play completely waterproof effect.
The present invention also provides a kind of display methods of the bright LED display of the water using any of the above-described embodiment, figure refer to 7, including, conducting liquid is sprayed in the display surface of LED display according to the first pattern;The display surface of LED display shows first Pattern.
As some embodiments, user utilizes hydraulic giant, is sprayed against on the bright display screen of water, user can use water Rifle sprays arbitrary pattern, after the taps of the display surface of LED display touches water, LED display unit is connected, so that LED Display unit shines, and the corresponding LED display unit of the taps without touching water does not work still, so that the bright LED of water is shown Screen can be used as drawing board, show the pattern of user's spraying.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute Subject to the scope of restriction.

Claims (9)

1. a kind of bright LED display of water, it is characterised in that LED display includes display surface and the back side opposite with display surface;Also Including:
Some array LED modules, each LED module include the LED display unit and taps for being arranged at display surface;When there is conduction When liquid is sprayed on taps, LED display unit shines;
The LED module includes:First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first triode, Second triode, the 3rd triode, LED display unit, taps;Wherein, the first end connection supply voltage of first resistor Vcc, the first end of second end connection taps and the base stage of the first triode of first resistor, the second end of taps and first The emitter ground connection of triode, the second end of collector connection second resistance and the first end of 3rd resistor of the first triode, The first end connection power source voltage Vcc of second resistance and the first end of the 4th resistance, the second end connection LED of the 4th resistance are shown The cathode of unit, the anode of LED display unit connect the collector of the 3rd triode, the 3rd electricity of base stage connection of the 3rd triode The collector of the second end of resistance and the second triode, the emitter of the 3rd triode connect the base stage and the 5th electricity of the second triode The second end ground connection of the first end of resistance, the emitter of the second triode and the 5th resistance.
2. the bright LED display of water as claimed in claim 1, it is characterised in that the structure of taps is around LED display unit Waveform conductive concentric circle structure;Spacing between the conductive structure of concentric structure is 0.3-0.8 millimeters.
3. the bright LED display of water as claimed in claim 1, it is characterised in that further include wiring board, the first face of wiring board is Display surface, the second face of wiring board is the back side.
4. the bright LED display of water as claimed in claim 3, it is characterised in that LED display unit includes electrode portion and in electrode Illuminating part in portion, the wiring board have some perforates through wiring board, and the luminous site is in perforate, the electrode Portion is located at the back side;Taps is located at the structure of display surface and taps for around the waveform conductive concentric of LED display unit circle Structure, the perforate is interior to be filled with waterproof epoxy glue.
5. the bright LED display of water as claimed in claim 3, it is characterised in that the display surface of the wiring board is except taps Outside, coated with hydrophobic coating, and positive taps is connected by circuit via with the circuit at the back side.
6. the bright LED display of water as claimed in claim 1, it is characterised in that when LED display is placed, display surface and level Face is in 90 ° to 95 °.
7. the bright LED display of water as claimed in claim 1, it is characterised in that further include decompression DC regulator circuit.
It is 8. a kind of such as the display methods of the bright LED display of claim 1-7 any one of them water, it is characterised in that including,
Conducting liquid is sprayed in the display surface of LED display according to the first pattern;
The display surface of LED display shows the first pattern.
9. display methods as claimed in claim 8, it is characterised in that the conducting liquid is the water with foreign ion.
CN201610268780.7A 2016-04-27 2016-04-27 The bright LED display of water and its display methods Active CN105894975B (en)

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Application Number Priority Date Filing Date Title
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101334953A (en) * 2008-07-31 2008-12-31 深圳市锐拓显示技术有限公司 Waterproof LED display module set
CN201244366Y (en) * 2008-08-06 2009-05-27 宋琇莹 Luminous instrument for game in water
CN201749638U (en) * 2010-06-13 2011-02-16 党艳杰 LED display screen
WO2013044601A1 (en) * 2011-09-30 2013-04-04 Yang Dongzuo Led dot matrix display and combined dot matrix display
CN203812520U (en) * 2014-05-07 2014-09-03 邹海平 Indoor LED display screen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101334953A (en) * 2008-07-31 2008-12-31 深圳市锐拓显示技术有限公司 Waterproof LED display module set
CN201244366Y (en) * 2008-08-06 2009-05-27 宋琇莹 Luminous instrument for game in water
CN201749638U (en) * 2010-06-13 2011-02-16 党艳杰 LED display screen
WO2013044601A1 (en) * 2011-09-30 2013-04-04 Yang Dongzuo Led dot matrix display and combined dot matrix display
CN203812520U (en) * 2014-05-07 2014-09-03 邹海平 Indoor LED display screen

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