CN202120572U

CN202120572U - Four-bit digital tube in shape of Chinese character 'mi'

Info

Publication number: CN202120572U
Application number: CN2011202209244U
Authority: CN
Inventors: 马少华; 丁昂; 王耀; 马海锋
Original assignee: NINGBO CO-HISHINE ELECTRONICS TECH Co Ltd
Current assignee: NINGBO MINGKE ELECTROMECHANICAL CO., LTD.
Priority date: 2011-06-25
Filing date: 2011-06-25
Publication date: 2012-01-18
Anticipated expiration: 2021-06-25

Abstract

The utility model relates to a four-bit digital tube in a shape of a Chinese character 'mi', which is mainly composed of four one-bit digital tubes in the shape of the Chinese character 'mi'. Each one-bit digital tube in the shape of the Chinese character 'mi' comprises seventeen light-emitting diodes, and each light-emitting diode is provided with a negative pole and a positive pole. Seventeen positive poles of each one-bit digital tube in the shape of the Chinese character 'mi' are respectively connected together to form COM1, COM2, COM3 and COM4 on the four one-bit digital tubes in the shape of the Chinese character 'mi', wherein the seventeen positive poles can display strokes, therefore four lead pins are arranged at a position control terminal. The seventeen negative poles capable of displaying identical strokes on the four one-bit digital tubes in the shape of the Chinese character 'mi' are connected with respective identical negative poles correspondingly. The four-bit digital tube in the shape of the Chinese character 'mi' has the advantages that the digital tube in the shape of the in the shape of the Chinese character 'mi' not only has a similar driving method with the one-bit digital tubes in the shape of the Chinese character 'mi', but also has twenty-two lead pins, can use an identical method to drive the digital tube, can save occupied printed circuit board (PCB) wiring area to some extent, reduces difficulty when the PCB wiring is designed, and can greatly reduce labor intensity in actual production and cost and the like.

Description

4 rice alphanumeric code pipes

Technical field

The utility model relates to a kind of stroke, character display device, especially a kind ofly can show 4 rice alphanumeric code pipes that comprise multiple symbols such as English alphabet.

Background technology

Charactron is a kind of light emitting semiconductor device, and its elementary cell is a light emitting diode, through the suitable connection (comprising series connection and parallel connection) and the appropriate optical structure of light-emitting diode chip for backlight unit.The luminescence segment or the luminous point of active display can be constituted, charactron can be formed by these luminescence segments or luminous point.Charactron will normally show, will drive each segment encode of charactron with driving circuit, thereby demonstrates numeral that we want, stroke, symbol etc.1 rice alphanumeric code pipe has 17 luminescence segments, and each luminescence segment is a light emitting diode, and therefore, 1 rice alphanumeric code pipe has 17 anodes of 17 negative electrodes and amounts to 34, public very male or female no matter, and the exit of 1 rice alphanumeric code pipe is at least 18.But 4 of needs demonstrations even the more English alphabet of multidigit usually on some equipment and instrument; Therefore just need several 1 rice alphanumeric code pipe be used side by side; Show 4 letters such as certain appliance requires; The number of pins of this nixie display will increase to 18 * 4=72, and this design to wiring board will produce certain difficulty, and the very inconvenience that in the middle of actual production, also seems.

Summary of the invention

The purpose of the utility model is to overcome existing 1 or 2 rice alphanumeric code pipes too much deficiency of pin when using side by side; The utility model provides a kind of 4 rice alphanumeric code pipes; This meter alphanumeric code pipe not only has and driving method like 1 rice alphanumeric code tubing; Also have only 22 leading foots, this will be reduced in the difficulty that produces in the wiring board design greatly.

The purpose of the utility model is accomplished through following technical scheme, and it mainly is made up of four 1 rice alphanumeric code pipe, and described 1 rice alphanumeric code pipe includes 17 light emitting diodes, and this light emitting diode has negative electrode and anode; Described four 1 rice alphanumeric code Guan Shangfen shows with each 17 that the anode of strokes links together and constitutes COM1, COM2, COM3, COM4, thereby there are 4 leading foots at control end on the throne place; On this four 1 rice alphanumeric code pipe 17 negative electrodes that show identical strokes respectively with the corresponding one by one connection of identical separately negative electrode.

As preferably, 17 negative electrodes that show identical strokes on described 1 rice alphanumeric code pipe are respectively: A1, A2, B, C, D1, D2, E, F, G1, G2, H, J, K, L, M, N, DP; The negative electrode A1 of negative electrode A1 on this 1 rice alphanumeric code pipe on other three 1 rice alphanumeric code pipe is connected, A2 and A2, B and B ... Thereby, 17 leading foots are arranged at section control end place.

As preferably, described four 1 rice alphanumeric code pipe also is provided with a leading foot in encapsulation process.

The utility model belongs to a kind of improvement to prior art; Its beneficial effect is: this meter alphanumeric code pipe not only has and driving method like 1 rice alphanumeric code tubing; Also have only 22 leading foots, can use identical method to drive charactron, but can save shared PCB layout area to a certain extent; Difficulty when reducing the design PCB layout, and in actual production, can significantly reduce characteristics such as labour intensity and cost.

Description of drawings

Fig. 1 is the circuit theory diagrams of the utility model.

Fig. 2 is the actual configuration figure of the utility model.

Label in the accompanying drawing is respectively: 1,1 rice alphanumeric code pipe; 2, light emitting diode; 3, position control end; 4, section control end; 21, negative electrode; 22, anode.

Embodiment

To combine accompanying drawing that the utility model is done detailed introduction below: shown in accompanying drawing 1; The utility model mainly is made up of four 1 rice alphanumeric code pipe 1; Described 1 rice alphanumeric code, 1 pipe includes 17 light emitting diodes 2, and this light emitting diode 2 has negative electrode 21 and anode 22; Divide on described four 1 rice alphanumeric code pipe 1 each 17 are shown that the anode 22 of strokes links together to constitute COM1, COM2, COM3, COM4, thereby there are 4 leading foots at control end on the throne 3 places; On this four 1 rice alphanumeric code pipe 1 17 negative electrodes 21 that show identical strokes respectively with the corresponding one by one connection of identical separately negative electrode 21.

17 negative electrodes 21 that show identical stroke on described 1 rice alphanumeric code pipe 1 are respectively: A1, A2, B, C, D1, D2, E, F, G1, G2, H, J, K, L, M, N, DP; The negative electrode A1 of negative electrode A1 on this 1 rice alphanumeric code pipe 1 on other three 1 rice alphanumeric code pipe is connected, A2 and A2, B and B ... Thereby, 17 leading foots are arranged at section control end 4 places.Described four 1 rice alphanumeric code, 1 pipes also are provided with a leading foot in encapsulation process.

The principle process of the utility model is: each 17 are shown that the anode of strokes links together constitute COM1, COM2, COM3, COM4, successively each identical stroke negative electrode is connected then.Adopt dynamic display driver in use; Specific as follows: the com port that is bits per inch sign indicating number pipe increases a position gate control circuit, and the position gating is by I/O line traffic control independently separately, when single-chip microcomputer output word font code; All charactrons all receive identical graphemic code; But be that which charactron can demonstrate font actually, depend on the control of single-chip microcomputer contraposition gating COM terminal circuit, so, opens the gating of the charactron that we will show as long as controlling; This position just demonstrates font, does not have the charactron of gating just can not be bright.COM end through each charactron of time sharing wheel current control just makes each charactron take turns controlled demonstration, dynamic driving that Here it is.In procedure for displaying in turn; The time of lighting of bits per inch sign indicating number pipe is 1～2ms; Because people's the persistence of vision phenomenon and the afterglow effect of light emitting diode are although in fact every charactron is not to light simultaneously, as long as the speed of scanning is enough fast; Giving people's impression is exactly one group of stable video data, does not have flickering.

The utility model is not limited to above-mentioned embodiment; No matter on its shape or material formation, do any variation; The structural design that every employing the utility model is provided all is a kind of distortion of the utility model, all should think within the utility model protection domain.

Claims

1. one kind 4 rice alphanumeric code pipes mainly are made up of four 1 rice alphanumeric code pipe, and it is characterized in that: described 1 rice alphanumeric code pipe (1) includes 17 light emitting diodes (2), and this light emitting diode (2) has negative electrode (21) and anode (22); Respectively each 17 are shown that the anode (22) of strokes links together on described four 1 the rice alphanumeric code pipe (1) and constitute COM1, COM2, COM3, COM4, control end on the throne (3) has been located 4 leading foots; Last 17 negative electrodes (21) that show identical strokes of this four 1 rice alphanumeric code pipe (1) respectively with the identical separately corresponding one by one connection of negative electrode (21).

2. 4 rice alphanumeric code pipes according to claim 1 is characterized in that: 17 negative electrodes (21) that show identical stroke on described 1 rice alphanumeric code pipe (1) are respectively: A1, A2, B, C, D1, D2, E, F, G1, G2, H, J, K, L, M, N, DP; The negative electrode A1 of negative electrode A1 on this 1 rice alphanumeric code pipe (1) on other three 1 rice alphanumeric code pipe is connected, and A2 and A2, B locate to be provided with 17 leading foots at section control end (4) with B, be connected successively.

3. 4 rice alphanumeric code pipes according to claim 1 and 2, it is characterized in that: described four 1 rice alphanumeric code pipe (1) also is provided with a leading foot in encapsulation process.