CN2587036Y

CN2587036Y - Photoelectric display device for rotating graphic text

Info

Publication number: CN2587036Y
Application number: CN 02261671
Authority: CN
Inventors: 方文卿; 江风益; 王小平
Original assignee: Jiangxi Changda Photo-Electrical Science & Technology Co Ltd
Current assignee: Jiangxi Changda Photo-Electrical Science & Technology Co Ltd
Priority date: 2002-11-14
Filing date: 2002-11-14
Publication date: 2003-11-19
Anticipated expiration: 2012-11-14

Abstract

The utility model discloses a photoelectric display device for rotating graphic text, which is composed of a sensor, a motor, a carbon brush holder, a circuit board, a line driver, a bit drive, a CPU and a plurality of semiconductor light-emitting devices fixed on a mounting bracket. A plurality of light-emitting devices are arranged into a plurality of rows by color; the direction of each light-emitting tube can be arranged inward and outward; the negative electrode of each row of light-emitting tube is connected to an RB of the CPU of a computer and a certain line of an RC port through the line driver; each row of light-emitting tube shares a positive electrode, and each row of light-emitting tube is connected to an I/O pin of an RA port of the CPU of the computer through the bit driver. The photoelectric display device for rotating graphic text has rotational symmetry, text and a plurality of rolling patterns can be easily displayed; the photoelectric display device for rotating graphic text can also display on double sides and can be used for lamp box advertisements on a street; if a laser is adopted, words and patterns can be displayed on an object of a large area through adjusting the direction of the adjusting to realize large-sized display. The utility model has the advantages of low energy consumption and long service life. The utility model can be used for the application field of the brightening of a city, advertisement propaganda, etc.

Description

The rotating image-text electro-optical display device

Technical field

The utility model relates to a kind of display device, relates in particular to a kind of rotating image-text electro-optical display device.

Background technology

In recent years, invention and commercialization along with gallium nitride indigo plant, green light LED (light emitting diode), panchromatic LED Large Screen Display Technology is very ripe, but because its price height (every square metre about 100,000 yuan), control, manufacturing technology complexity have limited it such as the application on similar lamp box advertisement, the StoreFront signboard etc.Though present lamp box advertisement, signboard etc. are cheap, owing to do not have dynamic, no change, thereby do not attract more sight.

Summary of the invention

The purpose of this utility model is: seek a kind of technology between LED giant-screen and lamp box, to remedy the prior art deficiency, provide a kind of rotating image-text electro-optical display device that can be used for applications such as advertisement recreational, city lighting.

The utility model is realized by following scheme: be made up of sensor, motor, carbon brush holder, wiring board, line drive, bit driver, CPU and a plurality of light emitting semiconductor device that is fixed on the mounting bracket.Light emitting semiconductor device mainly refers to light emitting diode and semiconductor laser.A plurality of luminescent devices become plurality of rows by color alignment, and as synthesizing color, angle between row and row should satisfy 360/2 ⁿIt is exclusive to remove these pure colors, also has a row to be made up of multicolor luminous pipe, and the direction of each luminotron inwardly can be arranged and outwards, is used for double-side pattern and show.The negative pole of every row's luminotron is received on the RB of computer CPU, certain root on the RC mouth line by line drive, and every row is anode altogether, and receives by bit driver on the I/O pin of RA mouth of computer CPU, and sensor output meets fracture INT in the computer CPU.

When the utility model luminotron is laser instrument,, literal and pattern can be mapped on the large tracts of land object, realize large-scale demonstration by adjusting the direction of laser instrument.

The utility model sensor is made of Photoelectric Detection pipe and light barrier, and Photoelectric Detection pipe emitter connects transistor base, and transistor collector connects fracture in the computing machine.

The utility model sensor is made of Hall unit, and Hall unit and circuit together rotate with support, and magnet steel maintains static.

The utility model also has additional infrared mouthful.

The utlity model has following advantage: 1, have rotational symmetry, can show multiple rolling pattern easily.Be used for street corner lamp box advertisement, can attracting sight.But 2, both display text, but display pattern are again gone back double-sided display type, and size is changeable.When luminotron is laser instrument, by adjusting the direction of laser instrument, literal and pattern can be mapped on the large tracts of land object, realize large-scale demonstration.3, do not use stepper motor, reduce cost greatly.4, successfully use EEPROM as the font memory, be furnished with infrared mouthful, increased application flexibility of the present invention.5, can be contained on the thing of multiple rotation, as fan, wheel of the bus etc.6, low energy consumption, can be used for applications such as city lighting, advertising at the long-life.

Description of drawings

Fig. 1 is the utility model embodiment 1 structural representation;

Fig. 2 Fig. 1 vertical view;

Fig. 3 embodiment 1 control circuit figure of the present utility model;

Fig. 4 is the utility model embodiment 2 laser instrument installations diagram;

Fig. 5 is the utility model embodiment 3 laser instrument installations diagram;

Fig. 6 is Fig. 5 vertical view.

Embodiment

Be elaborated below in conjunction with embodiment.

Embodiment 1:

Referring to Fig. 1, present embodiment is made up of Photoelectric Detection pipe 1, light barrier 2, motor 3, carbon brush holder 4, position driver module 5, infrared mouth 6, CPU7, eeprom chip 8, line driver module 9, wiring board 10 and a plurality of LED that is fixed on the wiring board 10, fixed support and wiring board 10 are shaped to one, a plurality of LED are arranged in 6 rows, promptly 11,12,13,14,15,16.Except that wherein be used for graphic presentation 11, other every row forms by a kind of light emitting diode of color, its negative pole is received on the RB of computer CPU, certain root on the RC mouth line by line driver module 9, every row is anode altogether, and receive by position driver module 5 on the I/O pin of computer CPU RA mouth, angle between row and row meets 360/2 ⁿ, n is an integer, in specific embodiments, and n=0,1,7.Such arrangement helps the quick calculating of computer and synthesizes versicolor literal by three-primary color LED.The light emitting diode of display pattern row 11 is made up of multicolor luminous pipe, and the direction of each light emitting diode inwardly can be arranged and be outside, and positive and negative like this both sides can be watched.Similarly, LED row the 15, the 16th, and in throwing, and 12,13,14 be outer, like this can two-way display text.For light emitting diode is installed firmly, the mounting means of each light emitting diode is seen local amplifier section among Fig. 1, and this mounting means can make the light emitting diode direction stable, and rotational resistance is little, and it is firm to install.The circuit diagram of this embodiment is seen Fig. 2, and Photoelectric Detection pipe 1 emitter connects triode T1 base stage, and triode T1 collector meets fracture INT in the computer CPU, and light barrier 2 maintains static.

The locus of LED when rotating in order accurately to know, the present invention has used photoelectric coding and detection technique.The Photoelectric Detection pipe is contained in the back side of wiring board, rotates with LED, in the present embodiment, used the simplest light barrier to make photoelectric coded disk, when light barrier streaked in photoelectric tube, computer detected rotating speed, calculated luminous position and the fluorescent lifetime of each LED fast.In addition, when light barrier streaks, also can give look-at-me INT of CPU in photoelectric tube, this also is the starting point signal that shows.

In the present embodiment, be equipped with chip 8, the font of display text is existed in the chip 8 of Fig. 1, the user can take off modification, and this chip 8 is 256K high capacity EEPROM, can adorn Hanzi font library.Present embodiment also is furnished with infrared mouthful 6, thereby can receive the infrared signal of mobile phone and so on device, and the user can fail good displaying contents on mobile phone, pass to this device.

The process of the utility model display text is such: space 360 degree is divided into 256 five equilibriums (promptly 360/2 ⁿ), this is the pixel on the circumference, pixel radially is exactly every row's a LED number, is 16 among Fig. 1.So just, can utilize these 256 * 16 pixels to realize that picture and text show.Because the persistence of vision of human eye as long as rotating speed reaches certain value, can think that just there are 256 * 16 LED in the space.Since adopt common electric machine, its rotary speed unstabilization, and the effect of photoelectric detection system is exactly the dynamic monitoring rotating speed, guarantees synchronously and steady display.If say that the persistence of vision principle is in common knowledge for everybody, so, adopting Photoelectric Detection realization and common electric machine should be the successful key of this device synchronously.In order to realize the synthetic of color, present embodiment has used the red, green, blue three-color LED, because they miss a fixed angle to each other, just they are luminous synthetic to realize color for the computer may command, as red+indigo plant=purple etc.

Because the monolithic computer capacity is limited, realize that with above-mentioned pixel graphic presentation is unrealistic, the present invention has arranged row's polychrome pipe specially, utilize rotational symmetry, the automatic demonstration that realizes multiple pattern (can be from the two-sided wheel patterns of seeing 2～9 dihedral positive and negative patterns, 2～9 positive and negative leaf patterns, 2～9 spokes, also have spiral figure, radiation pattern, components such as 4～18), make this device more can attract people's sight.

Embodiment 2:

The scheme similar embodiment 1 of present embodiment, to use the purpose of laser instrument be to utilize the characteristics that its directivity is good, brightness is high but change LED into semiconductor laser LD, and pattern is projected on the large tracts of land object.Like this as long as, just can realize that large-area graphs shows with a small machine.Fig. 3 is the installation diagram of laser instrument, is characterized in directly utilizing metal deformation to adjust the direction of laser instrument, and laser instrument among Fig. 3 and the metal necking down district between the rotating disk can be used to adjust the direction of laser instrument.

When display area was too big, the brightness meeting of the character pattern of demonstration was influenced, and for this reason, corresponding every kind of color can not re-use single row of tubes, must use many rows.Can reduce rotating speed like this, increase brightness, also guarantee to show stable simultaneously.Embodiment 3:

In the present embodiment, photogenerator is laser instrument LD, and configuration photoelectric coded disk 18 and deformable member 21.The arrangement of laser instrument LD is axial (laser instrument is the garden tubbiness after turning over), as shown in Figure 4.The columns of laser instrument LD and color are welcome, and as synthesizing color, the angle between row and the row still need meet 360/2 ⁿIn the present embodiment, because of blue, green laser is too expensive, has only used red laser instrument.In order to produce the literal of 16 dot matrix, used 16 laser instruments (being 20 among Fig. 4), the direction of laser instrument can directly be finished by adjusting flow of metal part 21.Screen 19 can be the transparent screen that the spy does, and also can be the metope of buildings.Photoelectric coded disk 18 be used for pixel on the control flow 19 evenly.Edge on the corresponding screen, the delineation line of photoelectric coded disk 18 want closeer.The same Fig. 2 of the control circuit of this embodiment.

If shielding 19 length is 1, vertical range between screen and the turning axle is d, with the vertical line that shields axle as the rotation start line, suppose that it is m that screen is gone up pixel, then each length in pixels is L/M, establishing the axle center again is initial pixel to the vertical point that shields, and then the delineation line of the electric code-wheel 18 of n pixel correspondence and the angle between the start line are

Claims

1, a kind of rotating image-text electro-optical display device, it is characterized in that: by sensor (1), motor (3), carbon brush holder (4), wiring board (10), position driver module (5), line driver module (9) and the light emitting semiconductor device that is arranged in plurality of rows (row) are formed, the direction of each luminescent device inwardly can be arranged and be outside, its negative pole is received the RB of computer CPU by line driver module (9), on certain root on the RC mouth line, every row (row) is anode altogether, and receive on the I/O pin of computer CPU RA mouth by a position driver module (5), sensor 1 output meets fracture INT in the computing machine (CPU).

2, a kind of rotating image-text electro-optical display device is characterized in that: the angle between row and row or row and the row meets 360/2 ⁿ, n can be 0～7 integer.

3, rotating image-text electro-optical display device according to claim 1 and 2 is characterized in that: light emitting semiconductor device is light emitting diode (LED) or is semiconductor laser (LD).

4, rotating image-text electro-optical display device according to claim 1 and 2 is characterized in that: wherein row's (row) is made up of multicolor luminous pipe, and other every row (row) forms by a kind of luminotron of color.

5, rotating image-text electro-optical display device according to claim 1 and 2, it is characterized in that: sensor (1) is made up of Photoelectric Detection pipe (1) and light barrier (2), and set up a triode (T1), Photoelectric Detection pipe (1) emitter connects triode (T1) base stage, triode (T1) collector meets fracture INT in the computing machine (CPU), and light barrier (2) maintains static.

6, rotating image-text electro-optical display device according to claim 1 and 2 is characterized in that: sensor (1) is a Hall device.

7, rotating image-text electro-optical display device according to claim 1 and 2 is characterized in that: also have additional infrared mouthful (6).

8, rotating image-text electro-optical display device according to claim 3 is characterized in that: when light emitting semiconductor device was laser instrument, the delineation line of the electric code-wheel (18) of n pixel correspondence and the angle between the start line were:

Wherein: 1 length for screen (19), d is the vertical range between screen and the turning axle, m for screen go up pixel with the vertical line that shields axle as the rotation start line.