CN2112190U - Simple electronic-control led display screen - Google Patents

Abstract

The utility model relates to a simple electronic-control LED display screen, which is composed of a battery power adapter, a pulse generator, a pulse distributor, a power pusher, a discoloration controller, and series-parallel LEDs. The LEDs are used for large area in static state, and are directly formed into words or patterns. The manufacturing price is below a dynamic LED display screen, and the electric consumption is smaller than a neon lamp. The utility model has the advantages of simple control circuit, easy fabrication, convenient operation, stable performance, low cost, etc. So the utility model is suitable for places requiring marked display and decoration such as billboards, indication for road signs, shops, hotels, movie theaters, communications, etc.

Description

Simple electronic-control LED display screen

This display screen is formed literal or pattern by semiconductor light-emitting-diode (LED) on the painted sculptures plate, light by circuit control LED and extinguish and the process of variable color, realizes monochromatic or double-colored Presentation Function.Be applicable to the place that billboard, trail guide, shop, hotel, movie theatre, the vehicles etc. need sign to show and decorate.

Single or a small amount of LED generally only does the level indication, power supply indication and illumination etc.Existing dynamic display screen, though the LED consumption is big, the control circuit complexity is manufactured with difficulty, and costs an arm and a leg.Adopt the neon bulb of Special Equipment high temperature process moulding, its glass tube rapid wear, power consumption is big, light that can only bill one color on a fluorescent tube.Generally also be difficult to by day see clearly, with the character pattern of neon light tube composition.Above-mentioned demonstration usable range all has its limitation.

The static large tracts of land that is designed to of this display screen is used LED, and visual and clear by the character pattern that LED formed, control circuit is simple and easy, and reliable and stable, and used unit, device are domestic commonly used, cheap, long service life.This large-scale static LED ad display screen of implementing is compared with neon bulb at present, and power consumption only is 1/3 to 1/4 of same display area neon bulb, and its cost is 1/8 to 1/10 of a dynamic LED display screen.Promote the use of this display screen on a large scale, can save money, economize on electricity.Through elaborate combination LED of all kinds, optimize the character pattern design, can apply to the changeless billboard of those character patterns, trade name, road sign board and various moulding pictures etc. widely.

Technical design scheme of the present utility model, by supply convertor (1) among the figure one, pulse producer (2), pulsqe distributor (3), engine power (4) is to (7), discoloration controller (8) and series connection dual-colored LED (9), monochromatic LED(10 connects), (11), (12), (13) form.

Supply convertor (1) is that transformerless simple and easy half-wave rectification and mu balanced circuit constitute, and exports 110 volts dc pulse moving voltage and 12 volts of stable DC voltage.110 volts supply (9), (10), (11), (12), (13) circuit, are the voltage of lighting of series LED.12 volts are made for (2), (3) circuit voltage.By the LF oscillator that the CMOS integrated package in the pulse producer (2) and resistance, appearance part constitute, produce low frequency (5H2 is following) positive negative pulse stuffing signal for (3), (8) circuit among the figure one.By each output terminal of pulsqe distributor (3), the positive pulse signal of a complete cycle of output, (4) are to the input end of (7) engine power in the control chart one.When positive pulse signal comes then, (4) to (7) conducting one by one makes LED(10) light one by one to (13) series loop, until bright entirely.Variable color control circuit (8) when the positive and negative pulse signal of pulse producer (2), when inputing to the transistor of (8), makes its conducting or ends, relay adhesive or release, and dual-colored LED (9) is controlled, reaches colour change function.

Show shown in the figure two that 220 volts of alternating voltages are through the BX fuse, by the C1 step-down, D1 rectification, D2 voltage stabilizing, 12 volts burning voltages of C2 filtering output, (2), (3) circuit among the confession figure one.D3 is the high-voltage great-current commutator tube, exports positive 110 volts pulsating dc voltage, for LED(9), (10), (11), (12), (13) use.

Figure three shows that by the LF oscillator that CMOS integrated circuit inverse gate and resistor-capacitor unit constitute, R1 is a current-limiting resistance, and R2 and C3 are the frequency adjustable element, changes the oscillation frequency that R2 or C3 all can change circuit.The oscillator signal that is produced by F1, F2 and R1, R2, C3 is sent to (3) and (8) among the figure one respectively through F3, F4 anti-phase.

Figure four shows, the pulse signal distribution circuit, when the F3 output signal among the figure three offers the IC2 input end, the positive pulse signal of the complete cycle of each output terminal output of IC2, progressively conducting of D8 to D10 simultaneously, make the pulse signal of Q1 to Q4 output distinct pulse widths, to reach in the control chart one (4) to (7) four identical power pushing circuits.

Figure five shows, one of power pushing circuit, and when the positive pulse signal of the Q1 among the figure four output arrives, BG1 conducting, LED(10～100 that are connected on+connect between 110 volts and the BG1 drain electrode) lighted.When Q1 was output as negative pulse, BG1 ended, and LED extinguishes.

Figure six shows, by the positive pulse signal that F4 among the figure three provides, makes the BG5 conducting, the relay J adhesive, two groups of transfer contact JK1 and JK2 point to 1*, 1, and the forward pipe in the dual-colored LED (corresponding to+110 volts of power supplys) conducting lights up as redness, when F4 is output as undersuing, BG5 ends, J discharges, and JK1 and JK2 point to 2*, 2, at this moment, the commutation of the bipod positive-negative polarity of LED, light color by red change into green.Finished the function of LED variable color.

The technical solution of the utility model is improved slightly, greater than under 6 volts, situation less than the power supply of 20 volts dc low-voltages, can change series LED into parallel connection LED, and control circuit is similar, can reach the purpose of display text and pattern equally.As the battery voltage on the automobile utilized of having tested, by simple circuit control can be luminous license plate, automotive safety driving indication etc., night, letter symbol was high-visible in 100 meters scopes.

The utility model accompanying drawing:

Figure one: simple and easy Electronic Control LED display general diagram;

Figure two: the supply convertor circuit;

Figure three: pulse-generator circuit;

Figure four: the pulsqe distributor circuit;

Figure five: the engine power circuit;

Figure six: the discoloration controller circuit;

With reference to description of drawings a kind of specific embodiments of the present utility model:

Form literal with series LED, during making, on the paper of painted sculptures plate, draw 8 * 9(mm2) grid, the font that on the longitudinal and transverse right-angled intersection point of grid, draws then, and indicate with crayon, select the hole of φ 5mm for use, after manage LED from the negative that the hole is pushed forward into, make the pin between adjacent just connect the negative or negative positive arrangement welding that connects, according to 10 to 100 series connection of literal needs.Because the power of the field effect transistor of engine power is bigger, so 2 to 8 groups of series LEDs can be attempted by in the circuit.If literal is more, display screen is big, and painted sculptures plate reverse side can be reinforced with batten.The circuit of control LED is placed in the place, space that painted sculptures plate reverse side does not have word.

The selection of circuit main element: COMS digital integrated circuit CD4069, CD4017, engine power adopts high-power FET TH8N10, and variable color oxide-semiconductor control transistors 3DG12,8050, LED are red, green, yellow, orange monochromatic tube and the double-colored both feet pipe of φ 5mm.

Remove LED and be installed on the painted sculptures plate, other element is installed on the printed circuit board (PCB), installs energized, just can show, need not complicated debugging, uses simple and convenient.

Claims (6)

1, a kind of simple and easy Electronic Control LED display, by supply convertor, pulse producer, pulsqe distributor, engine power, discoloration controller and series and parallel light emitting diode (LED) are formed.It is characterized in that:

A, supply convertor output 110 volts and 12 volts of DC voltage are lighted luminous reaching as circuit voltage for series LED.

The multivibrator that b, variable color control circuit are made of CMOS integrated package and resistance, appearance element, the pilot relay clutch makes the dual-colored LED variable color.

C, adopt the pulsqe distributor output pulse signal, power controlling transistor conducting and ending makes regularly that LED is luminous to be extinguished.

2, display screen according to claim 1 is characterized in that: supply convertor is made of half-wave rectifier, decompression capacitor, voltage stabilizing diode and filter capacitor.

3, display screen according to claim 1 is characterized in that: pulse producer is made of inverse gate and resistance, the appearance element of CMOS integrated circuit.

4, display screen according to claim 1 is characterized in that: pulsqe distributor is made of CMOS integrated circuit and part diode.

5, display screen according to claim 1 is characterized in that: engine power is made of high-power FET or High-power Semiconductor Triode.

6, display screen according to claim 1 is characterized in that: serial or parallel connection LED directly forms required literal or pattern.

Images