CN202153427U

CN202153427U - Multi-digit double color LED nixie tube and control circuit for realizing three-color display of the nixie tube

Info

Publication number: CN202153427U
Application number: CN201120224607XU
Authority: CN
Inventors: 王国徽
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-29
Filing date: 2011-06-29
Publication date: 2012-02-29
Anticipated expiration: 2021-06-29

Abstract

The present utility model discloses a multi-digit double color LED nixie tube and a control circuit for realizing three-color display of the nixie tube. The multi-digit double color LED nixie tube is composed of a shell and a plurality of unit LED segment codes, the unit LED segment codes are all arranged inside the shell, each unit LED segment code is provided with color A and color B light emitting diodes. The control circuit is composed of a one-chip microcomputer, a segment code latch register, a color A bit code latch register and a color B bit code latch register. As each unit LED segment code is provided with the color A and color B light emitting diodes, the three-color display of the multi-digit double color LED nixie tube can be realized as long as the corresponding control circuit is provided. The multi-digit double color LED nixie tube is suitable for the multifunctional intelligentized apparatus, instrument, device and equipment display. The circuit is simple, the volume is small, the weight is light and the cost is low. The display is visual, the observation is convenient, the color is distinct and the layer is clear. The multi-digit double color LED nixie tube is especially suitable for apparatuses, instruments, devices and equipment for night observation, and the multi-digit nixie tube display can be formed.

Description

Multidigit dual-colored LED charactron and can make it carry out the control circuit that three looks show

Technical field

The utility model relates to a kind of multidigit dual-colored LED charactron and can make it carry out the control circuit that three looks show.

Background technology

Existing two above LED charactrons can only monochromaticly show; It comprises housing and LED segment encode, in every LED segment encode, only is provided with a single color LED, can only show a kind of color; Function is more single, is difficult to satisfy the accurate display requirement of many accurate digital control equipment.Along with the development of high-end accurate digital control equipment or instrument and meter, press for polychrome kind Alternation Display, how to realize that through the LED charactron three looks or show are the technical matterss that this area will solve more.

The utility model content

The technical matters that the utility model will solve provides a kind of multidigit dual-colored LED charactron and can make it carry out the control circuit that three looks show.

For solving the problems of the technologies described above; The multidigit dual-colored LED charactron that the utility model provides; Comprise housing and a plurality of unit LEDs segment encode, each unit LEDs segment encode is installed in the housing, it is characterized in that: be provided with color A light emitting diode and color B light emitting diode in each unit LEDs segment encode.

The said multidigit dual-colored LED charactron that can make carries out the control circuit that three looks show, comprises single-chip microcomputer, the segment encode latch that links to each other with this single-chip microcomputer, color A bit code latch and color B bit code latch; Said unit LEDs segment encode links to each other with said segment encode latch, color A bit code latch and color B bit code latch.

Said segment encode latch, color A bit code latch and color B bit code latch are 8 latchs of the bright D type of full impregnated.

The character field coded signal output terminal of said single-chip microcomputer links to each other with the input end of said segment encode latch; First of single-chip microcomputer enables control end and links to each other with the Enable Pin of said segment encode latch, and first, second color control output end of single-chip microcomputer links to each other with the Enable Pin of color A bit code latch with color B bit code latch respectively.

The output terminal of said segment encode latch links to each other with the segment encode end of LED dual-colour digital code pipe, and color A bit code latch links to each other with the color control input end of each LED dual-colour digital code pipe with color B bit code latch output terminal.

The technique effect that the utlity model has: owing in multidigit dual-colored LED charactron, contain a plurality of unit LEDs segment encodes; Each unit LEDs segment encode is provided with color A and two light emitting diodes of color B; As long as be equipped with correspondent control circuits, just can make multidigit dual-colored LED charactron carry out three kinds of colors and show; Be applicable to that multifunctional intelligent instrument, instrument, equipment, equipment show; Circuit is simple, volume is little, in light weight, cost is low.Intuitive display, be convenient to observe, color is clearly demarcated, clear layer; Be specially adapted to instrument, instrument, equipment, the equipment of night observation; Can form multidigit nixie tube shows.

Description of drawings

For the content that makes the utility model is more clearly understood, below basis specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation, wherein:

Fig. 1 is the structural representation of four dual-colored LED charactrons;

The circuit block diagram of four the dual-colored LED charactrons that can three looks show among Fig. 2 embodiment;

Fig. 3 is the circuit theory diagrams of four the dual-colored LED charactrons that can three looks show among Fig. 1;

Fig. 4 is the circuit theory diagrams of dual-colored LED charactron.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is elaborated:

Embodiment 1

Like Fig. 1, the multidigit dual-colored LED charactron of present embodiment comprises: housing 1 and four unit LEDs segment encodes 2, each unit LEDs segment encode 2 is installed in the housing 1, is provided with redness and green LED in each unit LEDs segment encode 2.In other embodiments, can adopt redness and yellow light-emitting diode, or yellow and green LED.

Embodiment 2

Like Fig. 2-4; Can make multidigit dual-colored LED charactron carry out the control circuit that three looks show; Comprise single-chip microcomputer; The segment encode latch that links to each other with this single-chip microcomputer, red bit code latch and green bit code latch, and a plurality of LED dual-colour digital code pipes that link to each other with said segment encode latch, red bit code latch and green bit code latch.

Said segment encode latch, red bit code latch and green bit code latch are 8 latchs of the bright D type of full impregnated.

The character field coded signal output terminal of said single-chip microcomputer links to each other with the input end of said segment encode latch; First of single-chip microcomputer enables control end and links to each other with the Enable Pin of said segment encode latch, and first, second color control output end of single-chip microcomputer links to each other with the Enable Pin of red bit code latch and green bit code latch respectively.

The output terminal of said segment encode latch links to each other with the segment encode end of LED dual-colour digital code pipe, and red bit code latch links to each other with the color control input end of each LED dual-colour digital code pipe with green bit code latch output terminal.

Single-chip microcomputer adopts 51 series monolithics.

A, LED dual-colour digital code pipe (common cathode charactron):

1 n position LED dual-colour digital code pipe abcdefgdp segment encode end receives different high-low levels according to different digital, and (high level=2..0--3.2V, low level=0.0--0.4V), high level is effective.Each has two position ends of red position end WR and green position end WG in the LED dual-colour digital code pipe, and position end low level is effective.

(1) when LED charactron abcdefgdp segment encode high level, red position end WR low level, LED dual-colour digital code pipe exhibit red.

(2) when LED charactron abcdefgdp segment encode high level, green position end WG low level, LED dual-colour digital code pipe shows green.

(3) when LED charactron abcdefgdp segment encode high level, two of red position end WR and green position end WG be low level, and LED dual-colour digital code pipe shows yellow.

(4) double-colored anode charactron display mode altogether of LED and the double-colored common cathode charactron of LED display mode are that control level is opposite.

B, 74HC573 latch:

Latch is 8 latchs of the bright D type of full impregnated.Output terminal Q will change with the data (high-low level) of input end D during the section of enabling end LE high level, and output terminal Q keeps the legacy data level during section of enabling end LE low level.

8 dual-colored LED charactrons show three kinds of color function utilization distances:

1. 8 usages [1]:

A, red display operational factor 1 are like temperature humidity ... [8].

B, the green operational factor 2 that shows are like the pressure rotating speed ... [8].

C, the yellow operational factor 3 that shows are like the time flow ... [8].

Code (in the charactron character display scope) colors of can choosing any one kind of them such as D, operating prompting warning end-of-job.

2. 8 usages [2]:

A, red display setup parameter such as temperature humidity ... [8].

B, green operational factor such as the temperature humidity of showing ... [8].

C, the yellow codes (in charactron character display scope) such as operating prompting, warning, end-of-job that show.

3. 8 usages [3]:

[4] setup parameter shows that back [4] operational factor shows like temperature humidity before A, the red display parameter 1 ....

[4] setup parameter shows that back [4] operational factor shows like the pressure rotating speed before B, the green display parameter 2 ....

[4] setup parameter shows that back [4] operational factor shows like the time flow before C, the yellow display parameter 3 ....

Code (in the charactron character display scope) colors of can choosing any one kind of them such as D, operating prompting, warning, end-of-job.

The principle of work of each components and parts and effect

Said single-chip microcomputer requires written program [machine language] according to the deviser, downloads in the single-chip microcomputer through downloaded software.Single-chip microcomputer is according to different data and the instructions [high-low level] of program output.Effect is the working method of control external component.

Said segment encode, bit code latch are 8 latchs of the bright D type of full impregnated.During the section of enabling [LE] high level, the data [high-low level] that will import [D] section are by output [Q] section output data [high-low level], and during the section of enabling [LE] low level, output [Q] section keeps legacy data [high-low level].Effect is that the control charactron shows.

Said LED dual-colour digital code pipe [is that redness and green are example with common cathode charactron, color] has a b c d e f g dp segment encode end parallel connection [high level is effective] and red (WR) and green (WG) two position ends [low level is effective] of two groups of colors in the LED dual-colour digital code pipe.

(1) when LED dual-colour digital code pipe a b c d e f g dp segment encode high level, during the end low level of red (WR) position, LED dual-colour digital code pipe exhibit red a b c d e f g dp segment encode [character].

(2) when LED dual-colour digital code pipe a b c d e f g dp segment encode high level, during the end low level of green (WG) position, LED dual-colour digital code pipe shows green a b c d e f g dp segment encode [character].

(3) when LED dual-colour digital code pipe a b c d e f g dp segment encode high level, during the end while low level of red (WR) and green (WG) position, LED dual-colour digital code pipe shows yellow a b c d e f g dp segment encode [character].

(4) hold two all during high level when LED dual-colour digital code pipe red (WR) and green (WG) position, LED dual-colour digital code pipe does not show a b c d e f g dp segment encode [character].

(5) effect of LED dual-colour digital code pipe is to show that three chromatic numbers are according to [character].(display mode of the common anode of LED dual-colour digital code pipe is opposite with the mode of LED dual-colour digital code pipe common cathode).

The circuit of each components and parts connects:

(1) circuit of each components and parts connects introduction in <utility model content >;

(2) Fig. 3 attached (LED three look display circuit schematic diagrams 3)

LED dual-colour digital code pipe shows three kinds of color courses of work:

A, exhibit red:

(1) send a video data (character code):

The Enable Pin LE of single-chip microcomputer first Enable Pin (pn.x1) output high level to segment encode latch XSU1 opens the output terminal Q of segment encode latch XSU1.A single-chip microcomputer video data of output (character segment encode high-low level) is to the input end D of segment encode latch XSU1, and data (character) are delivered to the segment encode end of LED dual-colour digital code pipe through segment encode latch XSU1 output terminal Q.Single-chip microcomputer first Enable Pin (pn.x1) is output low level to the segment encode latch XSU1 section of enabling end LE again, makes segment encode latch XSU1 output terminal Q close that (at this moment the output terminal Q of segment encode latch XSU1 keeps original video data (character code).

(2) show a red data (character code):

Single-chip microcomputer second Enable Pin (pn.x2) output high level opens the output terminal Q of red bit code latch XSU2 to the Enable Pin LE of red bit code latch XSU2.Single-chip microcomputer output bit code low level is delivered to the input end D of red bit code latch XSU2, deliver to the red position end WR of dual-colour digital code pipe through the output terminal Q of red bit code latch XSU2 after.Single-chip microcomputer second Enable Pin (pn.x2) output low level again closes the output terminal Q of red bit code latch XSU2 (the output terminal Q of at this moment red bit code latch XSU2 keeps original red position low level) to the Enable Pin LE of red bit code latch XSU2.

B, demonstration green:

(1) send a video data (character code):

It is identical that same exhibit red < is sent a video data >

(2) show a green data (character code):

Single-chip microcomputer the 3rd Enable Pin (pn.x3) output high level opens green bit code latch XSU3 output terminal Q to the Enable Pin LE of green bit code latch XSU3.Single-chip microcomputer output bit code low level is delivered to the input end D of green bit code latch XSU3, after green bit code latch XSU3 output terminal Q delivers to the green end (WG) of dual-colour digital code pipe.Single-chip microcomputer the 3rd Enable Pin (pn.x3) output low level again makes green bit code latch XSU3 output terminal Q close (at this moment green bit code latch XSU2 output terminal Q keeps original green position low level) to the green bit code latch XSU3 section of enabling end LE.

C, demonstration yellow:

(1) send a video data (character code):

It is identical that same exhibit red < is sent a video data >

(2) show yellow data (character code):

Single-chip microcomputer second Enable Pin (pn.x2) and the 3rd Enable Pin (pn.x3) output high level all leave red bit code latch XSU2 and green bit code latch XSU3 output terminal Q to red bit code latch XSU2 and the green bit code latch XSU3 section of enabling end LE.Single-chip microcomputer output bit code low level is delivered to the input end D of red bit code latch XSU2 and green bit code latch XSU3, behind the red position end WR that delivers to the dual-colour digital code pipe through red bit code latch XSU2 and green bit code latch XSU3 output terminal Q respectively and the green position end WG.Single-chip microcomputer second Enable Pin (pn.x2) and the 3rd Enable Pin (pn.x3) are exported low flat to red bit code latch XSU2 and the green bit code latch XSU3 section of enabling end LE again, make red bit code latch XSU2 and green bit code latch XSU3 output terminal Q close (low level that at this moment red bit code latch XSU2 and green bit code latch XSU3 output terminal Q keep original red position and green position).

(4) yellow color shows adjusting:

XSR1--R8 is the adjusting resistance (8) of red position end WR, resistance scope 10--100 Ω, 1/8W.Because red wavelength＞green wavelength 25%, so adjust the voltage that red resistance just changes the red light emitting diodes in the LED dual-colour digital code pipe, the low more red light emitting diodes brightness of red light emitting diodes voltage is just dark more.Adjust red resistance and can regulate yellow chrominance (regulating the conventional resistance of resistance is 1 Europe).

Five, the three kinds of colors in n (multidigit) position show

As long as the three kinds of colors in n (multidigit) position show inferior a display mode circulation n (multidigit) of required Show Color

Obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not to be qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation that these spirit that belong to the utility model are extended out or change still are among the protection domain of the utility model.

Claims

1. multidigit dual-colored LED charactron, it comprises: housing and a plurality of unit LEDs segment encode, each unit LEDs segment encode is installed in the housing, it is characterized in that: be provided with color A and color B light emitting diode in each unit LEDs segment encode.

2. one kind can make the dual-colored LED of multidigit described in the claim 1 charactron carry out the control circuit that three looks show, it is characterized in that: comprise single-chip microcomputer, the segment encode latch that links to each other with this single-chip microcomputer, color A bit code latch and color B bit code latch; Said unit LEDs segment encode links to each other with said segment encode latch, color A bit code latch and color B bit code latch.

3. carry out the control circuit that three looks show according to the said multidigit dual-colored LED charactron that can make of claim 2, it is characterized in that: said segment encode latch, color A bit code latch and color B bit code latch are 8 latchs of the bright D type of full impregnated.

4. carry out the control circuit that three looks show according to the said multidigit dual-colored LED charactron that can make of claim 3; It is characterized in that: the character field coded signal output terminal of said single-chip microcomputer links to each other with the input end of said segment encode latch; First of single-chip microcomputer enables control end and links to each other with the Enable Pin of said segment encode latch, and first, second color control output end of single-chip microcomputer links to each other with the Enable Pin of color A bit code latch with color B bit code latch respectively.

5. carry out the control circuit that three looks show according to the said multidigit dual-colored LED charactron that can make of claim 4; It is characterized in that: the output terminal of said segment encode latch links to each other with the segment encode end of LED dual-colour digital code pipe, and color A bit code latch links to each other with the color control input end of each LED dual-colour digital code pipe with color B bit code latch output terminal.