CN202110794U

CN202110794U - LED strip display

Info

Publication number: CN202110794U
Application number: CN2011201416073U
Authority: CN
Inventors: 汪人泽
Original assignee: SHENZHEN HUISHITONG SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: SHENZHEN HUISHITONG SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2011-05-06
Filing date: 2011-05-06
Publication date: 2012-01-11
Anticipated expiration: 2021-05-06

Abstract

The utility model discloses an LED strip display which comprises display lattices and a strip screen controller. The strip screen controller is connected with each line of the display lattices via a line driving unit in a controlling manner, and is connected with each column of the display lattice via a column driving unit in a controlling manner. The line driving unit comprises line driving tubes provided with two control terminals and two sets of output terminals, wherein two CMOS tubes are disposed inside the line driving unit. Each set of output terminals of each line driving tube is at least connected with two lines of the display lattices in a driving manner. According to the utility model, the overall circuit structure of the LED strip display is simpler through the design of the line driving unit, and allows a display effect not to be affected. Besides, the circuit structure is convenient in maintenance and low in cost, and is suitable for promotion and application on a taxi.

Description

A kind of LED display strip screen

Technical field

The utility model relates to a kind of LED display strip screen, particularly a kind of LED display strip screen that is fit to be installed on the taxi.

Background technology

Existing LED display strip screen driving circuit relative complex, not only cost is high, and is not easy to maintenance, therefore, is not suitable on a large amount of taxis, applying.

The utility model content

The purpose of the utility model is to provide a kind of circuit structure simple LED display strip screen that is fit to be installed on the taxi.

The technical scheme that the utility model adopts is: a kind of LED display strip screen; Comprise and show dot matrix and bar screen controller; Said screen controller passes through row driver element and each the row control linkage that shows dot matrix, and passes through row driver element and each the row control linkage that shows dot matrix; Said capable driver element comprises that inside is the capable driving tube with two control ends and two groups of output terminals of two CMOS pipe, every group of output terminal of each row driving tube at least with show dot matrix in two row drivings be connected.

Preferably, said demonstration dot matrix has 16 row, and said capable driver element comprises a slice three or eight code translators and four said capable driving tubes; Three gating output terminals of said screen controller are corresponding to be electrically connected with three input ends of three or eight code translators; Eight output terminals of said three or eight code translators and totally eight corresponding one by one electrical connections of control end of four capable driving tubes; The corresponding driving with 16 row that show dot matrix of eight groups of output terminals of four capable driving tubes is connected, every group of output terminal correspondence two row wherein.

Preferably, said demonstration dot matrix is divided into the last viewing area of eight row and the following following viewing area of eight row, delegation on every group of output terminal correspondence in the viewing area and the delegation in the following viewing area.

Preferably, one group of output terminal of first row driving tube drives with first row of upper and lower viewing area and is connected, and another group output terminal drives with second row of upper and lower viewing area and is connected; One group of output terminal of second capable driving tube drives with the third line of upper and lower viewing area and is connected, and another group output terminal drives with the fourth line of upper and lower viewing area and is connected; One group of output terminal of the 3rd capable driving tube drives with the fifth line of upper and lower viewing area and is connected, and another group output terminal drives with the 6th row of upper and lower viewing area and is connected; One group of output terminal of the 4th capable driving tube drives with the 7th row of upper and lower viewing area and is connected, and another group output terminal drives with the 8th row of upper and lower viewing area and is connected.

Preferably, said demonstration dot matrix comprises eight LED dot matrix of 16 * 16 that are cascaded, and said row driver element comprises eight 16 constant-current driven chip, and every constant-current driven chip drives and 16 row of corresponding 16 * 16 LED dot matrix separately.

Preferably, the model of said capable driving tube is 74HC4953.

Preferably, said LED display strip screen also comprises the storer that is connected with the communication of bar screen controller.

The beneficial effect of the utility model is: the LED display strip screen of the utility model makes the integrated circuit structure simpler through the design to the row driver element; And do not influence display effect; This kind circuit structure has to be convenient to keep in repair the characteristics low with cost, is suitable on taxi, applying.

Description of drawings

Fig. 1 is the electrical block diagram of the LED display strip screen of the utility model.

Embodiment

As shown in Figure 1; The LED display strip screen of the utility model comprises eight LED dot matrix 4 of 16 * 16 that are cascaded; Promptly the same delegation of eight 16 * 16 LED dot matrix is electrically connected in order, forms the demonstration dot matrix of 128 row * 16 row, and bar screen controller 1 (can be single-chip microcomputer); This screen controller 1 is through row driver element 2 and each the row control linkage that shows dot matrix, and said screen controller 1 is through row driver element 5 and each the row control linkage that shows dot matrix; This LED display strip screen also comprises the storer that is connected with 1 communication of bar screen controller; The information content that needs demonstration; Like weather information, emergency episode information and automotive media information etc.; Can directly be sent in the bar screen controller 1 through computer, this screen controller 1 is stored in the displaying contents that receives in the storer 3.

Row driver element 2 comprises a slice three or eight code translators 21 and four capable driving tubes 22 that model is 74HC4953; The capable driving tube 22 of this model has two control ends and two groups of output terminals; Three gating output terminals of bar screen controller 1 are corresponding to be electrically connected with three input ends of three or eight code translators 21; Eight output terminals of three or eight code translators 21 and totally eight corresponding one by one electrical connections of control end of four capable driving tubes 22, eight groups of output terminals of four capable driving tubes 22 corresponding with 16 capable electrical connections.In the present embodiment, said demonstration dot matrix is divided into the last viewing area of eight row and the following following viewing area of eight row, delegation on every group of output terminal correspondence in the viewing area and the delegation in the following viewing area.Specifically can be connected for, one group of output terminal of first row driving tube and first drives with the 9th row (first row of following viewing area), another group output terminal is gone (going in second of following viewing area) driving and is connected with the tenth with second; One group of output terminal of second capable driving tube and the 3rd drives with the tenth delegation (the third line of following viewing area) and to be connected, another group output terminal and the 4th and the 12 capable

(fourth line of following viewing area) drives and connects; Driving is connected one group of output terminal of the 3rd capable driving tube with the tenth triplex row (fifth line of following viewing area) with the 5th, and driving is connected another group output terminal with Ariadne (the 6th row of following viewing area) with the 6th; One group of output terminal of the 4th capable driving tube is connected with the tenth five-element (going in the 7th of following viewing area) driving with the 7th, and driving is connected another group output terminal with the 16 row (the 8th row of following viewing area) with the 8th.It is identical that this kind row Drive Structure is accomplished the display mode of upper and lower viewing area, can simplify circuit structure like this, and be convenient to maintenance.

Row driver element 5 comprises eight 16 constant-current driven chip 51, and every constant-current driven chip 51 drives and 16 row of corresponding 16 * 16 LED dot matrix separately.

In addition, this LED display strip screen also is included as the power module of power supply such as bar screen controller 1 grade.

Claims

1. a LED display strip screen comprises showing dot matrix and bar screen controller, and said screen controller passes through row driver element and each the row control linkage that shows dot matrix, and passes through row driver element and each the row control linkage that shows dot matrix; It is characterized in that: said capable driver element comprises that inside is the capable driving tube with two control ends and two groups of output terminals of two CMOS pipe, every group of output terminal of each row driving tube at least with show dot matrix in two row drivings be connected.

2. LED display strip screen according to claim 1 is characterized in that: said demonstration dot matrix has 16 row, and said capable driver element comprises a slice three or eight code translators and four said capable driving tubes; Three gating output terminals of said screen controller are corresponding to be electrically connected with three input ends of three or eight code translators; Eight output terminals of said three or eight code translators and totally eight corresponding one by one electrical connections of control end of four capable driving tubes; The corresponding driving with 16 row that show dot matrix of eight groups of output terminals of four capable driving tubes is connected, every group of output terminal correspondence two row wherein.

3. based on the described LED display strip screen of claim 2, it is characterized in that: said demonstration dot matrix is divided into the last viewing areas of eight row and the following following viewing areas of eight row, delegation on every group of output correspondence in the viewing area and the delegation in the following viewing area.

4. LED display strip screen according to claim 3 is characterized in that: one group of output terminal of first row driving tube drives with first row of upper and lower viewing area and is connected, and another group output terminal drives with second row of upper and lower viewing area and is connected; One group of output terminal of second capable driving tube drives with the third line of upper and lower viewing area and is connected, and another group output terminal drives with the fourth line of upper and lower viewing area and is connected; One group of output terminal of the 3rd capable driving tube drives with the fifth line of upper and lower viewing area and is connected, and another group output terminal drives with the 6th row of upper and lower viewing area and is connected; One group of output terminal of the 4th capable driving tube drives with the 7th row of upper and lower viewing area and is connected, and another group output terminal drives with the 8th row of upper and lower viewing area and is connected.

5. according to claim 2,3 or 4 described LED display strip screens; It is characterized in that: said demonstration dot matrix comprises eight LED dot matrix of 16 * 16 that are cascaded; Said row driver element comprises eight 16 constant-current driven chip, and every constant-current driven chip drives and 16 row of corresponding 16 * 16 LED dot matrix separately.

6. LED display strip screen according to claim 1 is characterized in that: the model of said capable driving tube is 74HC4953.

7. LED display strip screen according to claim 1 is characterized in that: also comprise the storer that is connected with the communication of bar screen controller.