CN2205983Y - Practical program-control display screen with low-power and high brightness - Google Patents

Practical program-control display screen with low-power and high brightness Download PDF

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CN2205983Y
CN2205983Y CN 94236417 CN94236417U CN2205983Y CN 2205983 Y CN2205983 Y CN 2205983Y CN 94236417 CN94236417 CN 94236417 CN 94236417 U CN94236417 U CN 94236417U CN 2205983 Y CN2205983 Y CN 2205983Y
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circuit
lamp
display screen
data
dot matrix
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CN 94236417
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何培基
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Abstract

The utility model relates to a program-control display screen in which a luminescence dot matrix is composed of lamps, and the utility model is used for storing and display text and graph. The utility model has the advantages of visual display of overwriting content, convenient overwriting, simple structure of a lamp driving circuit, low power, high brightness and low cost. The utility model is characterized in that the utility model adopts an SAMP random memory and dry cells to store data, the lamp driving circuit emits the controlled silicon and a trigger circuit thereof of the prior art, and a lamp power supply drives directly in a mode of scanning the lamps by a power switch or drives directly the lamp to illuminate by a shifting temporary storage small-power triode. The luminescence dot matrix adopts low-power lamps and a converging cover is used to enhance the brightness, and thus the purposes of cost reduction, economy and practicability are achieved.

Description

Practical program-control display screen with low-power and high brightness
The utility model relates to a kind ofly suitable does that advertising and changeable graphics sign use, and is made of the program control display screen of dot matrix lamp.
Always there is deficiency in one aspect in existing dot matrix display in the prior art, be not that the cost price higher position is that difficulty of processing is big, or visual effect is undesirable, thereby becomes the obstacle of popularization.For example: CN85203636, with the luminous display unit of computing machine fortune control map-language activity, its support equipment is expensive, display screen can not independently use, bidirectional triode thyristor control incandescent lamp, the single triggering of some array element, display screen point volume ambassador's difficulty of processing and cost are multiplied.CN8607167 electronics woods board advertisement display, its display screen dot array is made of light emitting diode, and brightness is limited and outward appearance is difficult decorates.CN87209778 uses one-way SCR to make switch drive high power bulb array, independent trigger circuit of its each controllable silicon; Its difficulty of processing is well imagined.The CN2059015V(application number: 892093927), the CN2046661V(application number: deficiency 882016288) is the same with top several patents.If display screen uses incandescent lamp not take optical technology can not effectively utilize light source in addition, the big heat radiation of consumed power is a problem, and is difficult for decorating, and the sense organ effect is also not really desirable.
The purpose of this utility model is to provide a kind of low-power, the practical program control display screen of high brightness.
Above-mentioned purpose of the present utility model is by such technical scheme reality, and promptly it is by data-storing and read-write control circuit, display driver circuit, and luminous dot matrix of display screen lamp and display lamp power supply and stabilized voltage supply are formed; Wherein data-storing and read-write control circuit are connected on the base stage current-limiting resistance of the row control triode in the display driver circuit by the data output end of its memory; The ABCD input end of the 4-16 line code translator in the output terminal of the address scan data of the preset counter in data-storing and the read-write control circuit and the display driver circuit is connected to drive row switch timesharing break-make; Perhaps the input end by the row displacement driving circuit in the output terminal of clock pulse of the oscillator in data-storing and the read-write control circuit and the display driver circuit is connected; The luminous dot matrix of display screen lamp becomes display screen by the display unit permutation and combination that lower-power lamps, snoot, optically focused face shield constitute.
Said structure of the present utility model can further specify by accompanying drawing:
This reality is novel following accompanying drawing;
Accompanying drawing 1 is a theory diagram of the present utility model;
Accompanying drawing 2 is data-storing and read-write control circuit figure;
Accompanying drawing 3 is the circuit diagram of display drive scheme 1;
Accompanying drawing 4 is the circuit diagram of display drive scheme 2;
Accompanying drawing 5 is the utility model display screen lamp scheme 1 structural drawing;
Accompanying drawing 6 is display screen lamp scheme 2 structural drawing;
Accompanying drawing 7 is display screen lamp scheme 3 structural drawing.
Referring to Fig. 1, the utility model is by data-storing and read-write control circuit, display driver circuit, and the luminous dot matrix of display screen lamp, display lamp power supply and stabilized voltage supply constitute.
Referring to Fig. 2, data-storing and read-write control circuit are preserved start preliminary work circuit by data-storing and outage, data input circuit, and read-write control circuit constitutes.Wherein the data terminal IC of start preliminary work circuit is preserved in data-storing and outage 1D 0-D 7Through electronic switch IC 24-IC 31SI PO shift register IC with data input circuit 2-IC 3Output terminal I θ 0-2 θ 3Link.The IC of read-write control circuit 4-IC 7Output terminal θ 0-θ 3With storage circuitry IC 1Address end A 0-A 10Link.Programming writes and meets button AN 6With IC 1The read-write control end
Figure 942364171_IMG4
Link.
Data-storing and outage are preserved start preliminary work circuit by IC 1, BG 1, R 1, R 2, D 1, D 2, C 1, C 2And the 3V electric battery constitutes the SRAM IC circuit 1Be 6116.Wherein the 3V battery anode is through diode D 2With IC 1Power supply end V DDConnect and process R 1Receive IC 1Sheet choosing end
Figure 942364171_IMG5
, capacitor C 1With 3V electric battery, D 2Parallel connection, IC 1, V DDThrough D 1With power supply V DDConnect BG 1Collector and IC 1, ⌒ CEEnd connects, C 2With BG 1The emitter junction parallel connection, BG 1Base stage through R 2With power supply V DDConnect.
Data input circuit is by IC 2, IC 3, IC 22, IC 23, IC 24-IC 31, D 3-D 11, R 3-R 13, C 3, C 4, AN 7, AN 8Constitute cmos circuit IC 2, IC 3Be 4015, IC 22, IC 23Be 4069, IC 24-IC 31Be 4066.IC wherein 2, IC 3The utmost point is unified into 8 bit strings and goes into and go out shift registor, its data input pin D and IC 22Output terminal connects, IC 22Input end R 3With power supply V DDConnect (drawing high current potential) and one writing button AN 7And C 3Connect, and through their ground connection, IC 2, IC 3Input end of clock CP and IC 23Output terminal connect IC 23Input end through R 4With power supply V DDConnect, and through writing " O " button AN 3And C 4Ground connection is again through R 5, D 3Forward is connected to IC 22Input end.IC 2, IC 3Parallel data output terminal 1Q 0-2Q 3, and R 6-R 13, D 4-D 11The data display circuit of forming connects, and through bidirectional electronic switch IC 24-IC 31With IC 1Data terminal D 0-D 7Link to each other IC 22-IC 31Control end and IC 21Output terminal and IC 1The inhibit signal output terminal ⌒ DEConnect.
Read-write control circuit is by IC 4-IC 7, IC 11-IC 21, R 14-R 17, R 20-R 30, C 6-C 9, D 12-D 15, D 18, AN 1-AN 6Constitute cmos circuit IC 4-IC 7Be 4516, IC 11-IC 14, IC 17-IC 21Be 4069, IC 15-IC 16Be 4066.IC wherein 5-IC 7Level is linked to be 12 (only having used 11) up-down counters (being all scale-of-two in this explanation), IC 6, IC 7Output terminal θ 0-θ 3With IC 1A 4-A 10Connection is as the high address, IC 5Output terminal θ 0-θ 3With IC 4Put several input end D 0-D 3Connect IC 4Output terminal θ 0-θ 3With IC 1Low order address input end A 0-A 3Connect, simultaneously also with display lamp driving circuit Fig. 3 in 4-16 line decoding scheme IC 8Input end ABCD connect.IC 4Input end of clock CP and IC 12Output terminal connect IC 12, IC 11, R 20, R 21, C 6Constitute typical multivibrator and make scanning low order address usefulness.IC 4Put several control end PE and IC 21Output terminal and IC 1
Figure 942364171_IMG6
End connects, IC 4When putting number state IC 5θ 0-θ 3Output data put IC 1, A 0-A 3End.Up-down counter IC 5-IC 7Input end of clock CP by bidirectional electronic switch IC 15With IC 14Output terminal connect IC 13, IC 14, R 22, R 23, C 7Constitute multivibrator, produce the time clock that shows automatically.Also pass through simultaneously bidirectional electronic switch IC 16With IC 17Output terminal connect IC 17, R 24-R 26, C 8, C 9, D 18, AN 1, AN 2Constitute manually numeration input circuit, IC 17Input end is through R 24With V DDConnect, and add " 1 " button AN through numeration 1And C 8Ground connection, IC 5-IC 7Plus-minus end of convert V/D through R 25With V DDConnect and subtract " 1 " button AN through numeration 2And C 9Ground connection, IC 17Input end through R 26, D 18Forward is connected to IC 5-IC 7, the V/D end.IC 18, IC 19, R 27, R 28, AN 3, AN 4The bistable circuit that constitutes, its IC 18, IC 19Output terminal receive electronic switch IC respectively 15, IC 16Control end, AN 3Be " manually " button, AN 4Be the Auto button.IC 5-IC 7Reset terminal Cr receive IC 20Input end through R 29Meet V DDAnd through asking " O " button AN 5Ground connection.IC 21Output terminal receive IC 1
Figure 942364171_IMG7
End and electronic switch IC 24-IC 31Control end, and IC 4Put number end PE, and be connected to IC among display driver circuit Fig. 3 8Forbid output terminal 1NH.IC 21Input end receive IC 1The read-write control end
Figure 942364171_IMG8
, and through R 30Meet V DD, write button AN through programming simultaneously 6Ground connection.IC 1Data terminal D 0-D 7Be connected to display driver circuit, row control triode BG among Fig. 3, Fig. 4 28-BG 35Base stage current-limiting resistance R 47-R 54On.
Referring to Fig. 3, display driver circuit is made up of the lamp dot matrix circuit of column drive circuit and horizontal drive circuit and directed conduction in the present embodiment.Wherein: the electronic switch BG of column drive circuit 2-BG 17Be connected the electronic switch BG of horizontal drive circuit with the alignment of lamp dot matrix circuit 18-BG 25Line X with+35V power supply and lamp dot matrix circuit 0-X 7Connect.
Column drive circuit is by IC 8, R 31-R 46, BG 2-BG 17Constitute cmos circuit IC 8Be 4514.4-16 line code translator IC wherein 8Input end ABCD and data-storing and read-write control circuit Fig. 2 in IC 4Output terminal θ 0-θ 3Connect IC 8Forbid IC among output terminal 1NH and Fig. 2 21Output terminal connect.IC 8Output terminal Y 0-Y 15Through resistance R 31-R 46With row driving switch BG 2-BG 17Source electrode be connected grounded drain and being connected with the negative pole of lamp power supply 35V with the alignment of dot matrix circuit.
Horizontal drive circuit is by R 47-R 70, BG 18-BG 25, BG 28-BG 35Constitute.Row control triode BG 28-BG 35Base stage through resistance R 47-R 54With IC among Fig. 2 1Data terminal D 0-D 7Connect, collector is through resistance R 55-R 62With row switch (high-power pipe positive-negative-positive) BG 18-BG 25Grid connect BG 18-BG 25Grid through resistance R 63-R 70Be connected with the positive pole of source electrode with lamp power supply 35V, drain electrode respectively with the line X of lamp dot matrix circuit 0-X 7Connect.
The lamp dot matrix circuit of directed conduction is by lower-power lamps OBD 0-15BD 7With diode OD 0-15D 7Constitute.Each lamp be connected on the point of crossing of alignment and line after a diode is connected, the guiding of diode is identical with the power supply direction.
V DDMu balanced circuit IC 32Be 7806.
Referring to Fig. 4, among the figure: display driver circuit, by row displacement driving circuit line data input circuit, displacement dot matrix driving switch circuit is formed.Wherein: the output terminal of row displacement driving circuit is connected with the input end of clock CP of displacement dot matrix driving switch circuit, the input end IC of each row of the data output end of line data input circuit and displacement dot matrix driving switch circuit 41-IC 49B end connect.Displacement dot matrix driving switch circuit directly drives lamp.
Row displacement driving circuit is by IC 49, BG 26, R 79, R 80Constitute cmos circuit IC 49Be 4069.IC wherein 49Input end receive IC among Fig. 2 5Input end of clock CP removes the IC among Fig. 2 simultaneously 4And IC 11, IC 12, R 20, R 21, C 6, with IC 5Output terminal directly and IC 1A 0-A 3Connect (as shown in Figure 4) IC 49Output terminal through R 60With BG 26Grid connect BG 26Grounded drain, source electrode is through R 79Meet power supply V DD, be connected to the IC of displacement dot matrix driving switch circuit simultaneously 33-IC 48Input end of clock
The line data input circuit is by BG 28-BG 35, R 47-R 54, D 45-D 52, D 71-D 78Constitute.BG 28-BG 35Base stage is through R 47-R 54With IC among Fig. 1 1Data terminal D 0-D 7Connect grounded emitter, the IC of collector and displacement dot matrix driving switch circuit 41-IC 48Input end B connect, simultaneously through light emitting diode IC 45-IC 52Resistance R 71-R 78With power supply V DD(V CC) connect.
Displacement dot matrix driving switch circuit is by IC 33-IC 48, OBG 0-15BG 7And R 81-R 208With lower-power lamps OBD 0-15BD 7Constitute the TTL IC circuit 33-IC 48Be 74LS164.IC wherein 33-IC 48The utmost point is linked to be 8 row, 16 bit strings and goes into and go out shift registor, and its data input pin A meets power supply V CC, IC 41-IC 48Data input pin B meet BG 28-BG 35Collector, its parallel data output terminal θ 0-θ 7Respectively through R 81-208Meet triode OBG 0-15BG 7Base stage, OBG 0-15BG 7Emitter meets 7V, 10A lamp power supply positive pole and V DD(V CC), collector is through lamp OBD 0-15BD 7Connect 7V, 10A lamp power supply negative pole-V B
V DD(V CC) mu balanced circuit IC 49Be 7805.
Referring to Fig. 5, the lamp 1 of display screen is fixed on the reflecting condensation cover 2 among the figure, the endosexine of snoot 2 degree of being coated with one deck reflector layer 3 make to around the light reflection of scattering strengthened positive light forward, light more evenly concentrates light through the face shield 4 of lenticular mode, part light 4 in air interface between can be softer after different angle directions repeatedly reflects even, appear from the front.
Referring to Fig. 6, the lamp 1 of display screen is fixed in the transparent snoot 5 among the figure, the light that lamp 1 sends reflects between snoot 5 internal layers, part light in inboard interfacial refraction advances cover 5 after again and air between the interface between repeatedly reflect, make 5 to reach certain brightness, reduced scattering, light forward plays 5 the same effects through face shield 6.The decorative pattern of 6 inboards has increased the boundary reflection angle and direction makes light more evenly soft.
Referring to Fig. 7, display lamp 1 is fixed in the reflective transparent snoot 7 among the figure, snoot 7 has the snoot 5 in resembling Fig. 6 the catoptrical effect of refraction, since at the outside surface coating the lighttight reflection horizon 8 of one deck, so more strengthened the inside reflection of light, and more reduced to around scattering make light more concentrated, more clear, 4 effect is the same among the inner face effect that diffuser 9 protrudes and Fig. 5.
Can use among Fig. 5, Fig. 6, Fig. 7 during actual the use, 2, in 4,5,6,7,8,9 any form or several form in conjunction with making snoot, permutation and combination becomes the dot matrix display screen of m * n, because the effect of snoot has increased brightness, makes lower-power lamps reach the effect of high power lamp.
Comparing the utility model with existing technology has the following advantages:
1, it is much higher to compare the utility model brightness with LED display, much lower with high power lamp display screen phase specific power, but brightness is equally satisfied the demand, show that luminous point is changeable, dispel the heat easily and decoration, luminous point can be accomplished evenly soft, and the cost of lower-power lamps is also much lower simultaneously.
2, the big (book for the purpose of simplifying the description of display screen point volume, this specification has only been listed 8 * 16 dot matrix, expand during practice, show hundreds and thousands of increases of naming a person for a particular job), therefore the element circuit complexity is a bit in the display driver circuit, material cost will become hundred thousands of increases with processing cost, and two display lamp drive circuits that the utility model provides are all simpler than existing technology, so cost is just much lower.
3, lower with existing input support equipment than the utility model cost, can use separately, it is convenient that content is rewritten in operation.Use the SRAMP random memory, and with dry cell long preservation data.More easy to use than the EPROM that clashes with ultraviolet ray, clash E than electricity 2The PROM considerably cheaper is suitable for the present most of users of China.Increase interface circuit and corresponding circuit and also can import the user that data are adapted to have relatively high expectations by computing machine.
The utility model is high brightness, low-power, low cost, easy to use as mentioned above, both artistic and practical multi-usage display screen.

Claims (7)

1, the practical program control display screen of a kind of low-power high brightness is characterized in that by data-storing and read-write control circuit, display driver circuit, and the luminous dot matrix of display screen lamp, display lamp power supply and stabilized voltage supply are formed; Wherein data-storing and read-write control circuit are connected on the base stage current-limiting resistance of the row control triode in the display driver circuit by the data output end of its memory; The ABCD input end of the address scan data output end of the preset counter in data-storing and the read-write control circuit and the 4-16 line code translator in the display driver circuit is to drive row switch timesharing break-make; Perhaps the input end by the row displacement driving switch circuit in the output terminal of clock pulse of the oscillator in data-storing and the read-write control circuit and the display driver circuit is connected; The luminous dot matrix of display screen lamp is become by the display unit permutation and combination that lower-power lamps, snoot, optically focused face shield constitute.
2, according to the practical program control display screen of the described low-power high brightness of claim, it is characterized in that: data-storing and read-write control circuit are preserved start preliminary work circuit by data-storing and outage, data input circuit, read-write control circuit constitutes, and wherein: the data terminal IC of start preliminary work circuit is preserved in data-storing and outage 1D 0-D 7Through electronic switch IC 24-IC 31With sealing in and the storage IC that goes out to be shifted of data input circuit 2-IC 3Output terminal I θ 6-2 θ 3Link.The IC of read-write control circuit 4-IC 7Output terminal θ 0-θ 4With the storage IC circuit 1Address end A 0-A 10Link, programming writes and meets button AN 6With IC 1The read-write control end Link.
3, according to claim 1, the practical program control display screen of 2 described low-power high brightness, it is characterized in that: display driver circuit is made up of the lamp dot matrix circuit of column drive circuit and horizontal drive circuit and directed conduction.The electronic switch BG of column drive circuit 2-BG 17Be connected the electronic switch BG of horizontal drive circuit with the alignment of lamp dot matrix circuit 18-BG 25Line X with+35V power supply and lamp dot matrix circuit 0-X 7Connect.
4, according to claim 1, the practical program control display screen of 2 described low-power high brightness, it is characterized in that: display driver circuit is by being listed as the displacement driving circuit, line data input circuit, displacement dot matrix driving switch circuit composition.The output terminal of row displacement driving circuit and the input end of clock of the dot matrix driving switch circuit that is shifted
Figure 942364171_IMG3
Connect.The data output end of line data input circuit and each input end IC that goes of displacement dot matrix driving switch circuit 41-IC 48B end connect, displacement dot matrix driving switch circuit directly drives lamp.
5, according to claim 1, the practical program control display screen of 2 described low-power high brightness, it is characterized in that: the lamp of display screen lamp (1) is fixed on the reflecting condensation cover (2), at the inside surface coating of snoot (2) one deck reflector layer (3).
6, according to claim 1, the practical program control display screen of 2 described low rate high brightness, it is characterized in that: the lamp of display screen lamp (1) is fixed in the printing opacity snoot (5).
7, according to claim 1, the practical program control display screen of 2 described low-power high brightness, it is characterized in that: the lamp of display screen lamp (1) is fixed in the reflective transparent snoot (7).
CN 94236417 1994-04-27 1994-04-27 Practical program-control display screen with low-power and high brightness Expired - Fee Related CN2205983Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94236417 CN2205983Y (en) 1994-04-27 1994-04-27 Practical program-control display screen with low-power and high brightness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94236417 CN2205983Y (en) 1994-04-27 1994-04-27 Practical program-control display screen with low-power and high brightness

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CN2205983Y true CN2205983Y (en) 1995-08-23

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CN 94236417 Expired - Fee Related CN2205983Y (en) 1994-04-27 1994-04-27 Practical program-control display screen with low-power and high brightness

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