CN2750408Y - LED moving scan display device - Google Patents
LED moving scan display device Download PDFInfo
- Publication number
- CN2750408Y CN2750408Y CN 200420077007 CN200420077007U CN2750408Y CN 2750408 Y CN2750408 Y CN 2750408Y CN 200420077007 CN200420077007 CN 200420077007 CN 200420077007 U CN200420077007 U CN 200420077007U CN 2750408 Y CN2750408 Y CN 2750408Y
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- light emitting
- emitting diode
- display board
- driving
- display
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Abstract
The utility model discloses an LED moving scan display device which comprises a control circuit, a motor and two driving belts which are parallel to each other and can be respectively driven to make closed long circular circulating motion by the motor. The utility model is characterized in that the utility model also comprises a display panel, wherein both ends of the display panel are vertically and fixedly connected with the upper surface of the driving belts respectively and can make circulating motion when the display panel is driven by the driving belts. When the display panel is controlled by the control circuit, a light emitting diode array on the display panel can orderly lighten, move and scan to form images. The utility model can display two-dimensional images through the high speed moving scan display of the one-dimensional light emitting diode array, and has the advantages of capability of displaying single color, bicolor or full color images, fewer light emitting diodes, simplified control circuit, low cost, less power consumption and high brightness and contrast. The utility model is suitable for the image display of various pictures.
Description
Technical field
The utility model relates to a kind of light-emitting device instructions, especially semiconductor light-emitting-diode array display apparatus that adopts the single parts of combination to set up the variable information of information on support.
Background technology
Present luminous display unit has cathode-ray tube (CRT), liquid crystal, and projection, multiple device such as LED array, wherein the display device of LED array has brightness and contrast height, and color is pure, advantages such as colour gamut broadness and display frame standard.LED array also is generally called light emitting diode matrix.
But existing light emitting diode matrix flat display apparatus, each pixel just need be made of one or more light emitting diodes, form a flat display apparatus and need a large amount of light emitting diodes, cause corresponding control circuit complexity, and cost is high.
Content of the present utility model
The purpose of this utility model is exactly that the light emitting diode quantity that solves in the above-mentioned light emitting diode matrix display device is many, the control circuit complexity, and the problem that cost is high provides a kind of light emitting diode motion scanning display apparatus.
Design of the present utility model is to adopt a spot of light emitting diode to line up linear one-dimensional array, light emitting diode matrix control light emitting diode when motion scans by one dimension shows a complete two dimensional image at the fluorescent lifetime of correspondence position and the method for brightness, adopt the light emitting diode matrix combination of red, green, blue, wherein of the same colour, two looks or three looks or other color can obtain monochrome, double-colored or full-colour image shows.In the following description, letter r, G, B represent redness, green, blueness respectively.
The realization the technical solution of the utility model is: adopt the synchronous slew gear in both sides that comprises motor, power wheel and driving-belt, crossbearer is provided with display board on the driving-belt of both sides.Pass through power wheel behind the motor start-up, driving-belt drives display board and moves according to nominal scan speed, light emitting diode matrix is arranged on display board, position transducer is equipped with and, radio receiver circuit, control circuit and driving circuit, control circuit is measured light emitting diode matrix residing position on the viewing area on the display board by position transducer, according to image request, light corresponding light emitting diode in the light emitting diode matrix successively, light emitting diode matrix spatially forms the virtual light emitting pixel of an every trade after through high-speed motion scanning, sequential scanning once just can be synthesized a complete image from top to bottom.
Need the control circuit of the image of demonstration by fixed part, send picture signal by radio transmitter, after the receiving circuit of motion parts receives picture signal, position signalling that the binding site sensor provides and the data-signal in the storer, send respective drive signal to driving circuit, drive corresponding lumination of light emitting diode, stay the virtual screen of " quiet " at the volley.Wherein, the control circuit of fixed part comprises central control circuit, data processing circuit, storer, radio transmitter and motor.
The utility model has the advantages that, only need minority delegation or several capable light emitting diode matrix just can show a complete image, the required light emitting diode quantity of display device is significantly reduced, the correspondent control circuits structure is also simplified greatly, has reduced cost.Owing to adopt motion scanning display mode, so the light emitting diode matrix on the display board that accounts for the minimum part of the total area, all blackings of other parts of whole viewing area can obtain better contrast and excitation.
Description of drawings
Shown in Figure 1, be main TV structure synoptic diagram of the present utility model.
Fig. 2 is the plan structure synoptic diagram of Fig. 1.
Fig. 3 is the left TV structure synoptic diagram of Fig. 1.
Fig. 4 is the time distribution conversion timing synoptic diagram that the utility model three primary colours R, G and B lumination of light emitting diode pixel synthesize full-color pixel.
Fig. 5 is a schematic block circuit diagram of the present utility model.
Fig. 6 is the plan structure synoptic diagram of another embodiment of the utility model.
Each label and symbol description among each figure:
Embodiment
The master of Fig. 1, Fig. 2 look with schematic top plan view in, at front end of the present utility model, motor 1 rotates synchronously by the final drive shaft 2 and the 12 left driving wheel 3 and the right driving wheels 9 that drive both sides of and arranged on left and right sides, and left and right driving wheel 3 and 9 appearance all respectively are surrounded by a driving-belt 4 and 10.Correspondingly, in the rear end of this device, be provided with the left and right back front driven wheel at driven shaft 16 and two ends thereof, two driving- belts 4 and 10 the other end also wrapped each corresponding left and right back front driven wheel respectively, make driving- belt 4 and 10 constitute the oblate ring-type of sealing, transmission can circulate.The two ends of rectangle display board 5 are fixedly connected with the outside surface of and arranged on left and right sides driving- belt 4 and 10 respectively, and vertical with two driving-belts.On display board 5, be arranged at intervals with the light emitting diode matrix 13,14 and 15 of R, G and three kinds of colors of B, and the wireless receiving circuit 19 of this three-color light-emitting diode, control circuit 18 and driving circuit 17.Virtual screen 6 is display board 5 zones at motion scanning display image, is not material object, so the with dashed lines frame is represented.Position transducer 7 cooperates with reflection point or the line divided by row, provides the information of display board 5 positions for being located at control circuit on the display board 5.Right side at driving wheel 9 and corresponding back front driven wheel thereof, be fixed with two slideway electrodes 11, and the two slideway brushes 8 that are fixed on display board 5 right-hand member heads correspondingly, abuts against on two slideway electrodes 11, makes the power supply can be by electrode 11 and brush 8 power supplies to each circuit and device on the display board 5.R, G, B light emitting diode matrix 13,14,15 are on first display board 5 and are arranged in parallel, and make each array luminous in order by wireless receiving circuit 19, control circuit 18 and driving circuit 17.240 pixel cells that are made of light emitting diode are arranged on each light emitting diode matrix, account for virtual screen 6 and spatially be divided at interval 320 row in 960 row, total virtual pixel is 320*240, the sweep frequency that image shows is 50 frames, R, G, B light emitting diode matrix 13,14,15 successively from vertical view go up to down on vertical plane to the demonstration of lining by line scan of virtual screen 6.Position transducer 7 is a grating sensor, makes position transducer can obtain the current location information of display board 5 on virtual screen 6 by the corresponding light reaction point of row.
What above-mentioned R, G, B light emitting diode matrix 13,14 and 15 were shown is full-colour image, because by these three kinds of primary colours, the adjustable shades of colour of allotting, certainly the monochromatic or double-colored image that also can be made into single file or duplicate rows shows, structural principle and panchromatic basic identical, just the array line number is different with the array line number that driving circuit drives.Panchromatic can both work it out, and single or double-colored is just easier, and this is that those skilled in the art can accomplish, so repeat no more.
As shown in Figure 3, it is the left view of Fig. 1, in the drawings as can be known, motor 1 by a side main driving wheel 3 and from power wheel 20 and driving-belt 4 power wheel and driving-belt with opposite side, drive display board 5 and on a sealing track, do shuttling movement, display board 5 move in the above the plane of process for scanning display surface.Power supply cooperates by two slideway electrodes 11 on principal and subordinate's power wheel 3 and 20 sides and the two slideway brushes on display board 5 one terminations 8, and display board 5 is given in power supply.When display board 5 moves, form the display image of a two dimension through corresponding lumination of light emitting diode scanning in the viewing area of virtual screen 6.Virtual screen 6 is established 960 row, R, G, each evenly accounts for 320 row the scanning of B, 240 unit pixel are arranged on each array scanning display line, R, G, B light emitting diode matrix 13,14,15 show the illuminated message of corresponding line number when moving in corresponding zone, so when display board 5 is informed when arriving at initial working point DO by position transducer 7 at the volley, the data message that control circuit 18 sends the signal access to memory is sent to road 17 in the driving, light corresponding R on the light emitting diode matrix successively by driving circuit 17, G, the B light emitting diode, data message is converted to corresponding light signal, learn by position transducer 7 when display board 5 and to arrive at when stopping the working point, control circuit 18 stops to send video data, driving circuit 17 quits work, R, G, the B light emitting diode matrix extinguishes.
Width modulation is adopted in the brilliance control of light emitting diode, can show 256 grades of gray scales, and R, G, the combination of B three primary colours can show up to ten million kinds of colors.In the present embodiment, driving- belt 10,4 drives display board 5 with the speed show events of per second scanning demonstration 50 width of cloth pictures or static image.
As shown in Figure 4, be the time distribution conversion timing waveform synoptic diagram that the utility model three primary colours R, G and B lumination of light emitting diode pixel synthesize full-color pixel.Driving circuit 18 is lighted R, G, B light emitting diode successively, from microcosmic visually, the dummy unit pixel that is made of adjacent R, G, B light emitting diode exists T0 in time, T0+1T, the mistiming of T0+2T, wherein, the T express time, there is D0 in the space, D0+1L, the space parallax of D0+2L, but owing to R, G, B unit pixel are arranged closely and the eye storage characteristic of human eye, three adjacent R, G, B unit pixel can be synthesized a panchromatic luminescence unit pixel on macroscopic view, three-color light-emitting diode respectively accounts for 320 row on virtual screen 6.
As shown in Figure 5, be schematic block circuit diagram of the present utility model, by among the figure as can be known, it is made up of the circuit of fixed part and motion parts, wherein, the circuit of motion parts is arranged on the display board 5.The circuit of fixed part comprises Data Receiving treatment circuit, central control circuit, storer, motor and radio transmitter circuit, and the circuit of motion parts comprises wireless receiving circuit, display board control circuit, position transducer, display board storer, driving circuit and led array circuit.Two-part circuit is by the radio infrared line or other communication is got in touch and transmission of data signals, and two parts circuit also should comprise power supply.The principle of work of two parts circuit is: the Data Receiving treatment circuit is responsible for receiving and is handled the outside image display signal that transmits and pass to central control circuit, central control circuit is received the treated memory stores of delivering in back, when the display board control circuit learns that from position transducer 7 display board 5 arrives at scanning during initial display position, the display board control circuit is with this information notification central control circuit, central control circuit takes out data message is sent to motion parts by radiating circuit after wireless-modulated radio receiver circuit from storer, after display board 5 control circuits obtain the data message of first row from radio receiver circuit, the display board control circuit is in conjunction with the relevant information of display board storer, drive R by driving circuit, G, the luminous demonstration of B light emitting diode matrix, when display board 5 obtains row information from position transducer 7, the data message of second row is sent out, so move in circles, till having swept piece image.Repeat above-mentioned steps, just can showing with data message one width of cloth width of cloth of image.
Fig. 6 is the plan structure synoptic diagram of another embodiment of the utility model, in this embodiment, driving- belt 4 and 10 is provided with and is in two two display panels 5 and display boards 21 on the moving surface respectively, the structure of two display boards is identical, display board 5 is responsible for showing the Pixel Information of odd-numbered line on the virtual screen 6, display board 21 is responsible for showing Pixel Information, display board 5 and the 21 alternate sweep images of even number line.Its advantage is: under identical frame frequency, the motion sweep velocity of display board 21 can half in like manner can push away than the reduction of display board 5 in Fig. 1～3, further reduce the motion sweep velocity of display board as need, can continue to increase the quantity of display board, if the quantity of display board is N, then motion sweep velocity can be reduced to 1/N.
Above-mentioned two embodiment to the utility model design are illustrated.In addition; present technique field those skilled in the art can put down in writing the thought of the present utility model of scope from present patent application; revise in every way and equal conversion content of the present utility model, these modifications and equal conversion should belong to protection domain of the present utility model.
Claims (6)
1, a kind of light emitting diode motion scanning display apparatus, it comprise that control circuit, motor (1) and two are parallel to each other and the drive of each comfortable motor under, can seal the driving-belt (4 and 10) of track shuttling movement, it is characterized in that also comprising:
Be provided with above and comprise light emitting diode matrix, sensor (7) and wireless receiving, display board control and driving circuit, two ends connect with vertical fixing above the described driving-belt (4 and 10) respectively and under the drive of driving-belt, can make the display board (5) of shuttling movement;
Motor (1) drives display board (5) by driving-belt (4 and 10) and makes shuttling movement, and display board (5) is under the control of control circuit, and the light emitting diode matrix above it can scan in luminous in regular turn motion, forms image.
2, light emitting diode motion scanning display apparatus according to claim 1 is characterized in that:
Can only be provided with the light emitting diode matrix of a certain particular color on the display board (5), realize that monochrome image shows.
3, light emitting diode motion scanning display apparatus according to claim 1 is characterized in that:
Can only be provided with the light emitting diode matrix of two kinds of particular colors on the display board (5), can realize that two tone image shows.
4, light emitting diode motion scanning display apparatus according to claim 1 is characterized in that:
Can be provided with the light emitting diode matrix of red, green, blue three primary colours on the display board (5), can realize that full-colour image shows.
5, light emitting diode motion scanning display apparatus according to claim 1 is characterized in that:
Can be fixed with two display boards (5,21) that relatively independent structure is identical on two driving-belts (4 and 10), the vertical bar shape light emitting diode matrix on display board only shows the pixel on the odd-numbered line, and another display board is responsible for showing the pixel on the even number line.
6, light emitting diode motion scanning display apparatus according to claim 1 is characterized in that:
Can be fixed with N the identical independently display board of structure on the described driving-belt (4 and 10), whenever go up vertical bar shape light emitting diode matrix on the display board and only be responsible for being shown as pixel on the scan line of integral multiple of N, wherein, N is 1,2,3,4 ... natural number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420077007 CN2750408Y (en) | 2004-10-13 | 2004-10-13 | LED moving scan display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420077007 CN2750408Y (en) | 2004-10-13 | 2004-10-13 | LED moving scan display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750408Y true CN2750408Y (en) | 2006-01-04 |
Family
ID=35823789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420077007 Expired - Fee Related CN2750408Y (en) | 2004-10-13 | 2004-10-13 | LED moving scan display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2750408Y (en) |
-
2004
- 2004-10-13 CN CN 200420077007 patent/CN2750408Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |