CN2254580Y - Light guide colour display sign board - Google Patents

Abstract

The utility model discloses a light guide color display sign board, mainly composed of an organic glass board, a guard cover box, and a circuit board installed in the guard cover box. The circuit of the utility model is composed of a filtering rectification circuit, a clock circuit, a decoder, a control circuit, a color-change light source, and a voltage regulating circuit. The color-change light source is installed in one end surface groove which is in the organic glass board and is coated by the guard cover box. With the time control conversion and the light transmitting function of the organic glass board, characters and patterns engraved on the organic glass board are caused to display a plurality of colors and have a stereo suspending visual effect. The utility model is suitable for being used for indoor decoration, signs, etc.

Description

Photoconduction colour display screen label

The utility model relates to label, refers to a kind of photoconduction colour display screen label particularly.

Common on the market label roughly has three classes at present; A kind of is to stick on label on the substrate by self-adhesive paper, foam and organic film, and its shortcoming is that self can not be luminous, when extraneous dim light, is beyond recognition the content on the label.Another kind is traditional lamp box label, and its volume school is heavy, and placement or suspension occupy-place are big and not attractive in appearance, and stereoscopic sensation is relatively poor.The third is the label that neon bulb shows, its shortcoming is that fluorescent tube is frangible, power consumption is big, the life-span is short, makes complicated, with high costs.

It is light and handy that the purpose of this utility model provides a kind of volume, can time control change demonstration, and visual effect is good, and cheap, the photoconduction colour display screen label that the life-span is long.

Photoconduction colour display screen label for realizing that this purpose the utility model is designed comprises a poly (methyl methacrylate) plate and protecting cover box, and a circuit board is housed in the protecting cover box.Have groove on the end face that poly (methyl methacrylate) plate is encased by the protecting cover box, the Colour-change light source in the circuit board just is installed in this groove; The poly (methyl methacrylate) plate surface be carved with the expression character and graphic groove, this groove have the sand hair rough surface.After the utility model is connected with the mains, the Colour-change light source that is installed in the poly (methyl methacrylate) plate end face groove is disturbed the brilliance that different colours is sent in meeting circulation under the circuit control of circuit board, by the vertical leaded light effect of poly (methyl methacrylate) plate, make to be engraved in its surperficial character and graphic and to show different colors.Because other transparent part of poly (methyl methacrylate) plate does not develop the color, make the character and graphic that is manifested have unsettled stereoscopic sensation.

The utility model also can increase a backlight, backlight nondiscolouring in the circuit of foregoing circuit plate.An overlapping again poly (methyl methacrylate) plate behind above-mentioned poly (methyl methacrylate) plate is also opened a groove on the end face that back one poly (methyl methacrylate) plate is encased by the protecting cover box simultaneously, and described backlight is placed in this groove.Again the back one poly (methyl methacrylate) plate surface engrave the expression character and graphic the sand hair groove.After energized, circuit makes Colour-change light source circulation variable color, and the backlight nondiscolouring, and the light source on two poly (methyl methacrylate) plates does not disturb mutually, thereby the character and graphic circulation variable color on preceding poly (methyl methacrylate) plate, then the character and graphic on the piece poly (methyl methacrylate) plate is photochromic constant, makes the utility model have more three-dimensional unsettled visual effect.

Since adopted electron beam time control conversion, poly (methyl methacrylate) plate leaded light colour display screen, the feasible volume that the utlity model has is little, and the writing show levels is clearly demarcated, rich color, the effect that stereoscopic vision is splendid.Simultaneously cheap for manufacturing cost, little power consumption, long service life.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a kind of photoconduction colour display screen label assembling decomposing schematic representation.

Fig. 2 is the circuit block diagram of circuit board among Fig. 1.

Fig. 3 is the circuit structure diagram of circuit board among Fig. 1.

The colour display screen of photoconduction shown in figure label is made up of two poly (methyl methacrylate) plates that are superimposed together 7,3 and protecting cover box 8 and circuit board 6 etc.Circuit board 6 is fixed in the protecting cover box 8 by screw 11.Its circuit is made up of filter rectifier I, clock circuit II, code translator III, control circuit IV, Colour-change light source V, regulating circuit VI and backlight VII.Filter rectifier is made of resistance R 6, commutator tube VD6, stabilivolt VD5, capacitor C 3.Clock circuit connects formation by ic chip 1 (NE555), resistance R 1～R3, capacitor C 1 and adjustable resistance W1, regulates resistance W1 and can change the pulse output time.Code translator is made of ic chip 2 (CD4017), has selected three tunnel circulation output terminal Q0～Q2 altogether for use, and the pulse output end of ic chip 1 connects the input end of clock of ic chip 2 by resistance R 3.Control circuit is by switching diode VD1～VD4, resistance R 4, R5 and one-way SCR VS1, VS2 constitute, the forward of switching diode VD1, VD2 meets decoder output Q0, Q1 respectively, and order is to the control utmost point of controllable silicon VS1, VS2 behind negative sense difference resistance in series R5, the R4; The forward of switching diode VD3, VD4 meets decoder output Q2 simultaneously, and its negative sense connects the negative sense of switching diode VD2, VD1 respectively.Colour-change light source is made of red green two groups of LEDs 1, LED2, red light source is in series by some red light emitting diodes, green light source is in series by some green LEDs, and red green two groups of LEDs 1, LED2 are connected in parallel after being connected in series one-way SCR VS1, VS2 respectively.Backlight is made of one group of single color LED LED3 series connection, and is in parallel with light-emitting diode group LED1 and one-way SCR VS1 behind the examination group LED 3 series connection adjustable resistance W3, its working current of adjustable resistance W3 scalable.Regulating circuit is made of bidirectional triode thyristor VS3, trigger tube VS4, capacitor C 2 and adjustable resistance W2 connection.220V AC power one tunnel provides voltage for Colour-change light source and backlight through regulating circuit, and another road provides voltage for clock circuit, code translator and control circuit through filter rectifier.

Have groove 4,5 on the end face that poly (methyl methacrylate) plate 7,3 is encased by protecting cover box 8, two groups of red and green luminous diode (LED)s 1, LED2 of Colour-change light source are placed in the groove 4, and one group of single color LED LED3 of backlight is placed in the groove 5.The groove 12,13 of expression character and graphic is carved with on the surface of two poly (methyl methacrylate) plates 7,3 respectively.The groove of above-mentioned expression character and graphic can be carved into V-type, v-angle is generally between 60～120 °, angle the best of 80 °, groove depth is 30～40% of the machine sheet thickness that is carved with, must become rough surface by the sand hair in the groove, the writing that gets off through photoconduction manifests clear evenly brightly like this, create an aesthetic feeling.

Two poly (methyl methacrylate) plates 7,3 and protecting cover box 8 firm connects and is that holding pin 2 in the opening of above-mentioned poly (methyl methacrylate) plate both sides realizes by being inserted in, and the bipod of above-mentioned holding pin 2 firmly is embedded on the slideway of protecting cover box 8 inside, and the protecting cover box works to shelter light source simultaneously.Limit lid 1 covers the two ends of protecting cover 8.Power lead 9 can be drawn from the top of protecting cover box 8, link 10 this photoconduction colour display screen label of being convenient to suspend.

During this photoconduction colour display screen label work, the output terminal Q0 of code translator～Q2 circulation output high-low level, when Q0 output high level, one-way SCR VS1 conducting red light emitting diodes group LED1, character and graphic on the poly (methyl methacrylate) plate 7 shows for red, when Q1 output high level, one-way SCR VS2 conducting green LED group LED2, the character and graphic on the poly (methyl methacrylate) plate 7 show for green; When Q2 output high level, the red green two groups of LEDs 1 of one-way SCR VS1, VS2 conducting simultaneously, LED2, dichromatism is superimposed as sodium yellow, and the character and graphic on the poly (methyl methacrylate) plate 7 shows for yellow, and circulation is endlessly thus.Single color LED group LED3 stably sends monochromatic light simultaneously, makes the character and graphic demonstration on the poly (methyl methacrylate) plate 3 stablize constant.Whole label looks that character and graphic is well arranged, and stereoscopic sensation is strong, and color is changeable, and is clear eye-catching.

Claims (5)

1, a kind of photoconduction colour display screen label, comprise poly (methyl methacrylate) plate (7) and protecting cover box (8), it is characterized in that: circuit board (6) is housed in the protecting cover box (8), have groove (4) on the end face that poly (methyl methacrylate) plate (7) is encased by protecting cover box (8), Colour-change light source in the circuit board (6) is installed in this groove (4), poly (methyl methacrylate) plate (7) surface be carved with the expression character and graphic the sand hair groove (12).

2, photoconduction colour display screen label according to claim 1 is characterized in that: the circuit of foregoing circuit plate (6) is by filter rectifier, clock circuit, code translator, control circuit, Colour-change light source and form for the regulating circuit of Colour-change light source voltage supply; The pulse output end of clock circuit connects the input end of clock of code translator through resistance, code translator adopts three tunnel circulation output terminal Q0～Q2, the forward of switching diode VD1, the VD2 of control circuit meets decoder output Q0, Q1 respectively, order is to the control utmost point of controllable silicon VS1, VS2 behind its negative sense difference resistance in series R5, the R4, the forward of switching diode VD3, VD4 meets decoder output Q2 simultaneously, and its negative sense connects the negative sense of switching diode VD2, VD1 respectively; Colour-change light source is made of the LED 2 of the different colours that LED 1 and another group of one group of series connection are connected, and two groups of LEDs 1, LED2 are connected in parallel after being connected in series one-way SCR VS1, VS2 respectively.

3, photoconduction colour display screen label according to claim 2, it is characterized in that: also be connected to a backlight in the said circuit, backlight is made of the LED 3 of one group of series connection, and is in parallel with light-emitting diode group LED1 and one-way SCR VS1 behind this group LED 3 series connection adjustable resistance W3; Said poly (methyl methacrylate) plate (7) back also has an overlapping with it poly (methyl methacrylate) plate (3), have groove (5) on the end face that this poly (methyl methacrylate) plate (3) is encased by protecting cover box (8), above-mentioned backlight is installed in this groove (5), poly (methyl methacrylate) plate (3) surface be carved with the expression character and graphic the sand hair groove (13).

4, according to claim 1 or 2 or 3 described photoconduction colour display screen labels, it is characterized in that; The groove that is engraved in above-mentioned poly (methyl methacrylate) plate surface expression character and graphic is the V-type groove, and v-angle is 60～120 °, and groove depth is 30～40% of the machine sheet thickness that is carved with.

5, photoconduction colour display screen label according to claim 4, it is characterized in that: the v-angle of said V-type groove is 80 °.

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